Lincoln Navigator Manuals

Lincoln Navigator: Information and Entertainment System - General Information - Vehicles With: SYNC 4 / Information and Entertainment System. Diagnosis and Testing

Lincoln Navigator 2018-2025 Workshop Manual / Information and Entertainment Systems / Information and Entertainment System - General Information - Vehicles With: SYNC 4 / Information and Entertainment System. Diagnosis and Testing

Diagnostic Trouble Code (DTC) Chart

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).


Module DTC Description Action
ACM B116A:01 Handset Microphone: General Electrical Failure GO to Pinpoint Test V
ACM B116A:12 Handset Microphone: Circuit Short To Battery GO to Pinpoint Test V
ACM B116A:14 Handset Microphone: Circuit Short To Ground Or Open GO to Pinpoint Test V
ACM B117A:01 Backup Microphone: General Electrical Failure GO to Pinpoint Test V
ACM B117A:12 Backup Microphone: Circuit Short To Battery GO to Pinpoint Test V
ACM B117A:14 Backup Microphone: Circuit Short To Ground Or Open GO to Pinpoint Test V
ACM B13F5:01 Microphone 3: General Electrical Failure GO to Pinpoint Test V
ACM B13F5:12 Microphone 3: Circuit Short To Battery GO to Pinpoint Test V
ACM B13F5:14 Microphone 3: Circuit Short To Ground Or Open GO to Pinpoint Test V
ACM B150C:01 Automobile Audio Bus (A2B) Node 1: General Electrical Failure GO to Pinpoint Test C
ACM B150C:11 Automobile Audio Bus (A2B) Node 1: Circuit Short To Ground GO to Pinpoint Test C
ACM B150C:12 Automobile Audio Bus (A2B) Node 1: Circuit Short To Battery GO to Pinpoint Test C
ACM B150C:13 Automobile Audio Bus (A2B) Node 1: Circuit Open GO to Pinpoint Test C
ACM B150C:55 Automobile Audio Bus (A2B) Node 1: Not Configured GO to Pinpoint Test C
ACM B150C:87 Automobile Audio Bus (A2B) Node 1: Missing Message GO to Pinpoint Test C
ACM B150C:8F Automobile Audio Bus (A2B) Node 1: Erratic GO to Pinpoint Test C
ACM B150C:95 Automobile Audio Bus (A2B) Node 1: Incorrect Assembly GO to Pinpoint Test C
ACM B1511:01 Automobile Audio Bus (A2B) Master Node: General Electrical Failure GO to Pinpoint Test C
ACM B1511:11 Automobile Audio Bus (A2B) Master Node: Circuit Short To Ground GO to Pinpoint Test C
ACM B1511:12 Automobile Audio Bus (A2B) Master Node: Circuit Short To Battery GO to Pinpoint Test C
ACM B1511:13 Automobile Audio Bus (A2B) Master Node: Circuit Open GO to Pinpoint Test C
ACM B1511:95 Automobile Audio Bus (A2B) Master Node: Incorrect Assembly GO to Pinpoint Test C
ACM B1A56:11 Antenna: Circuit Short To Ground GO to Pinpoint Test A
ACM B1A56:15 Antenna: Circuit Short To Battery Or Open GO to Pinpoint Test A
ACM B1A89:11 Satellite Antenna: Circuit Short To Ground GO to Pinpoint Test B
ACM B1A89:13 Satellite Antenna: Circuit Open GO to Pinpoint Test B
ACM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test Y
ACM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information GO to Pinpoint Test Z
ACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test AA
ACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test AD
ACM U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information GO to Pinpoint Test AF
ACM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information GO to Pinpoint Test AI
ACM U0249:00 Lost Communication With Entertainment Control Module -Rear 'B': No Sub Type Information GO to Pinpoint Test AJ
ACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test AK
ACM U0256:00 Lost Communication With Front Controls Interface Module 'A': No Sub Type Information GO to Pinpoint Test AL
ACM U201A:51 Control Module Main Calibration Data: Not Programmed GO to Pinpoint Test AQ
ACM U201B:04 Control Module Calibration Data #2: System Internal Failures GO to Pinpoint Test AQ
ACM U201B:51 Control Module Calibration Data #2: Not Programmed GO to Pinpoint Test AQ
ACM U201B:55 Control Module Calibration Data #2: Not Configured GO to Pinpoint Test AQ
ACM U2024:00 Control Module Cal-Config Data: No Sub Type Information GO to Pinpoint Test AQ
ACM U2024:57 Control Module Cal-Config Data: Invalid/Incompatible Software Component GO to Pinpoint Test AQ
ACM U2026:54 Control Module Cal-Config Data #3: Missing Calibration GO to Pinpoint Test AQ
ACM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test AQ
ACM U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test AQ
ACM U3000:41 Control Module: General Checksum Failure GO to Pinpoint Test AR
ACM U3000:42 Control Module: General Memory Failure GO to Pinpoint Test AR
ACM U3000:92 Control Module: Performance Or Incorrect Operation GO to Pinpoint Test AR
ACM U3000:94 Control Module: Unexpected Operation GO to Pinpoint Test AR
ACM U3000:96 Control Module: Component Internal Failure GO to Pinpoint Test AR
ACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test AM
ACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test AN
APIM B108E:01 Display: General Electrical Failure GO to Pinpoint Test J
APIM B108E:02 Display: General Signal Failure GO to Pinpoint Test J
APIM B108E:4A Display: Incorrect Component Installed GO to Pinpoint Test J
APIM B108E:4B Display: Over Temperature GO to Pinpoint Test J
APIM B108E:87 Display: Missing Message GO to Pinpoint Test J
APIM B119F:01 GPS Antenna: General Electrical Failure GO to Pinpoint Test S
APIM B119F:13 GPS Antenna: Circuit Open GO to Pinpoint Test S
APIM B1252:11 USB Port: Circuit Short To Ground GO to Pinpoint Test N
APIM B1252:13 USB Port: Circuit Open GO to Pinpoint Test N
APIM B14FD:11 External Media Control Connectivity: Circuit Short To Ground GO to Pinpoint Test N
APIM B156D:54 TCU Customer Connectivity Settings Synchronization With HMI: Missing Calibration GO to Pinpoint Test AX
APIM B156D:89 TCU Customer Connectivity Settings Synchronization With HMI: Data Transfer Failure GO to Pinpoint Test AX
APIM B15EB:57 Consumer Apps: Invalid/Incompatible Software Component GO to Pinpoint Test AX
APIM B1D79:11 Microphone Input: Circuit Short To Ground GO to Pinpoint Test L
APIM B1D79:12 Microphone Input: Circuit Short To Battery GO to Pinpoint Test L
APIM B1D79:13 Microphone Input: Circuit Open GO to Pinpoint Test L
APIM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0121:55 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': Not Configured GO to Pinpoint Test AX
APIM U0122:00 Lost Communication With Vehicle Dynamics Control Module: No Sub Type Information GO to Pinpoint Test AV
APIM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test AV
APIM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information GO to Pinpoint Test AV
APIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test AV
APIM U0159:00 Lost Communication With Parking Assist Control Module 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information GO to Pinpoint Test J
APIM U0162:94 Lost Communication With Navigation Display Module: Unexpected Operation GO to Pinpoint Test J
APIM U0184:00 Lost Communication With Radio: No Sub Type Information GO to Pinpoint Test AV
APIM U0196:00 Lost Communication With Entertainment Control Module-Rear 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0208:00 Lost Communication With 'Seat Control Module A': No Sub Type Information GO to Pinpoint Test AV
APIM U0209:00 Lost Communication With 'Seat Control Module B': No Sub Type Information GO to Pinpoint Test AV
APIM U020C:00 Lost Communication with Wireless Accessory Charging Module 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information GO to Pinpoint Test AV
APIM U0214:00 Lost Communication With Remote Function Actuation Module: No Sub Type Information GO to Pinpoint Test AV
APIM U0232:00 Lost Communication With Side Obstacle Detection Control Module 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0233:00 Lost Communication With Side Obstacle Detection Control Module 'B': No Sub Type Information GO to Pinpoint Test AV
APIM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information GO to Pinpoint Test AV
APIM U023B:00 Lost Communication With Image Processing Module B: No Sub Type Information GO to Pinpoint Test AV
APIM U024B:00 Lost Communication with Seat Control Module 'G': No Sub Type Information GO to Pinpoint Test AV
APIM U024C:00 Lost Communication with Seat Control Module 'H': No Sub Type Information GO to Pinpoint Test AV
APIM U0256:00 Lost Communication With Front Controls Interface Module 'A': No Sub Type Information GO to Pinpoint Test AV
APIM U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information GO to Pinpoint Test AW
APIM U0415:94 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': Unexpected Operation GO to Pinpoint Test AW
APIM U0416:00 Invalid Data Received From Vehicle Dynamics Control Module: No Sub Type Information GO to Pinpoint Test AW
APIM U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information GO to Pinpoint Test AW
APIM U0452:00 Invalid Data Received From Restraints Control Module: No Sub Type Information GO to Pinpoint Test AW
APIM U1A00:87 Private Communication Network: Missing Message GO to Pinpoint Test B
APIM U1A00:94 Private Communication Network: Unexpected Operation GO to Pinpoint Test B
APIM U2017:45 Control Module Software #2: Program Memory Failure GO to Pinpoint Test AX
APIM U2017:51 Control Module Software #2: Not Programmed GO to Pinpoint Test AX
APIM U2017:52 Control Module Software #2: Not Activated GO to Pinpoint Test AX
APIM U2017:54 Control Module Software #2: Missing Calibration GO to Pinpoint Test AX
APIM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test AX
APIM U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test AX
APIM U3000:04 Control Module: System Internal Failures GO to Pinpoint Test AY
APIM U3000:05 Control Module: System Programming Failures GO to Pinpoint Test AY
APIM U3000:09 Control Module: Component Failures GO to Pinpoint Test AY
APIM U3000:41 Control Module: General Checksum Failure GO to Pinpoint Test AY
APIM U3000:43 Control Module: Special Memory Failure GO to Pinpoint Test AY
APIM U3000:57 Control Module: Invalid/Incompatible Software Component GO to Pinpoint Test AX
APIM U3000:88 Control Module: Bus Off GO to Pinpoint Test AV
APIM U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test AM
APIM U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test AN
DSP B128A:01 Speaker #13: General Electrical Failure GO to Pinpoint Test G
DSP B128A:11 Speaker #13: Circuit Short To Ground GO to Pinpoint Test G
DSP B128A:12 Speaker #13: Circuit Short To Battery GO to Pinpoint Test G
DSP B128A:13 Speaker #13: Circuit Open GO to Pinpoint Test G
DSP B128B:01 Speaker #14: General Electrical Failure GO to Pinpoint Test G
DSP B128B:11 Speaker #14: Circuit Short To Ground GO to Pinpoint Test G
DSP B128B:12 Speaker #14: Circuit Short To Battery GO to Pinpoint Test G
DSP B128B:13 Speaker #14: Circuit Open GO to Pinpoint Test G
DSP B128C:01 Speaker #15: General Electrical Failure GO to Pinpoint Test G
DSP B128C:11 Speaker #15: Circuit Short To Ground GO to Pinpoint Test G
DSP B128C:12 Speaker #15: Circuit Short To Battery GO to Pinpoint Test G
DSP B128C:13 Speaker #15: Circuit Open GO to Pinpoint Test G
DSP B128D:01 Speaker #16: General Electrical Failure GO to Pinpoint Test G
DSP B128D:11 Speaker #16: Circuit Short To Ground GO to Pinpoint Test G
DSP B128D:12 Speaker #16: Circuit Short To Battery GO to Pinpoint Test G
DSP B128D:13 Speaker #16: Circuit Open GO to Pinpoint Test G
DSP B128E:01 Speaker #17: General Electrical Failure GO to Pinpoint Test G
DSP B128E:11 Speaker #17: Circuit Short To Ground GO to Pinpoint Test G
DSP B128E:12 Speaker #17: Circuit Short To Battery GO to Pinpoint Test G
DSP B128E:13 Speaker #17: Circuit Open GO to Pinpoint Test G
DSP B128F:01 Speaker #18: General Electrical Failure GO to Pinpoint Test G
DSP B128F:11 Speaker #18: Circuit Short To Ground GO to Pinpoint Test G
DSP B128F:12 Speaker #18: Circuit Short To Battery GO to Pinpoint Test G
DSP B128F:13 Speaker #18: Circuit Open GO to Pinpoint Test G
DSP B1290:01 Speaker #19: General Electrical Failure GO to Pinpoint Test G
DSP B1290:11 Speaker #19: Circuit Short To Ground GO to Pinpoint Test G
DSP B1290:12 Speaker #19: Circuit Short To Battery GO to Pinpoint Test G
DSP B1290:13 Speaker #19: Circuit Open GO to Pinpoint Test G
DSP B1291:01 Speaker #20: General Electrical Failure GO to Pinpoint Test G
DSP B1291:11 Speaker #20: Circuit Short To Ground GO to Pinpoint Test G
DSP B1291:12 Speaker #20: Circuit Short To Battery GO to Pinpoint Test G
DSP B1291:13 Speaker #20: Circuit Open GO to Pinpoint Test G
DSP B13FB:11 Audio Enable Line: Circuit Short To Ground GO to Pinpoint Test C
DSP B1A01:01 Speaker #1: General Electrical Failure GO to Pinpoint Test F
DSP B1A01:01 Speaker #1: General Electrical Failure GO to Pinpoint Test G
DSP B1A01:11 Speaker #1: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A01:11 Speaker #1: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A01:12 Speaker #1: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A01:12 Speaker #1: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A01:13 Speaker #1: Circuit Open GO to Pinpoint Test F
DSP B1A01:13 Speaker #1: Circuit Open GO to Pinpoint Test G
DSP B1A02:01 Speaker #2: General Electrical Failure GO to Pinpoint Test F
DSP B1A02:01 Speaker #2: General Electrical Failure GO to Pinpoint Test G
DSP B1A02:11 Speaker #2: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A02:11 Speaker #2: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A02:12 Speaker #2: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A02:12 Speaker #2: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A02:13 Speaker #2: Circuit Open GO to Pinpoint Test F
DSP B1A02:13 Speaker #2: Circuit Open GO to Pinpoint Test G
DSP B1A03:01 Speaker #3: General Electrical Failure GO to Pinpoint Test F
DSP B1A03:01 Speaker #3: General Electrical Failure GO to Pinpoint Test G
DSP B1A03:11 Speaker #3: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A03:11 Speaker #3: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A03:12 Speaker #3: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A03:12 Speaker #3: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A03:13 Speaker #3: Circuit Open GO to Pinpoint Test F
DSP B1A03:13 Speaker #3: Circuit Open GO to Pinpoint Test G
DSP B1A04:01 Speaker #4: General Electrical Failure GO to Pinpoint Test F
DSP B1A04:01 Speaker #4: General Electrical Failure GO to Pinpoint Test G
DSP B1A04:11 Speaker #4: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A04:11 Speaker #4: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A04:12 Speaker #4: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A04:12 Speaker #4: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A04:13 Speaker #4: Circuit Open GO to Pinpoint Test F
DSP B1A04:13 Speaker #4: Circuit Open GO to Pinpoint Test G
DSP B1A05:01 Speaker #5: General Electrical Failure GO to Pinpoint Test F
DSP B1A05:01 Speaker #5: General Electrical Failure GO to Pinpoint Test G
DSP B1A05:11 Speaker #5: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A05:11 Speaker #5: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A05:12 Speaker #5: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A05:12 Speaker #5: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A05:13 Speaker #5: Circuit Open GO to Pinpoint Test F
DSP B1A05:13 Speaker #5: Circuit Open GO to Pinpoint Test G
DSP B1A06:01 Speaker #6: General Electrical Failure GO to Pinpoint Test F
DSP B1A06:01 Speaker #6: General Electrical Failure GO to Pinpoint Test G
DSP B1A06:11 Speaker #6: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A06:11 Speaker #6: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A06:12 Speaker #6: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A06:12 Speaker #6: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A06:13 Speaker #6: Circuit Open GO to Pinpoint Test F
DSP B1A06:13 Speaker #6: Circuit Open GO to Pinpoint Test G
DSP B1A07:01 Speaker #7: General Electrical Failure GO to Pinpoint Test F
DSP B1A07:01 Speaker #7: General Electrical Failure GO to Pinpoint Test G
DSP B1A07:11 Speaker #7: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A07:11 Speaker #7: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A07:12 Speaker #7: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A07:12 Speaker #7: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A07:13 Speaker #7: Circuit Open GO to Pinpoint Test F
DSP B1A07:13 Speaker #7: Circuit Open GO to Pinpoint Test G
DSP B1A08:01 Speaker #8: General Electrical Failure GO to Pinpoint Test F
DSP B1A08:01 Speaker #8: General Electrical Failure GO to Pinpoint Test G
DSP B1A08:11 Speaker #8: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A08:11 Speaker #8: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A08:12 Speaker #8: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A08:12 Speaker #8: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A08:13 Speaker #8: Circuit Open GO to Pinpoint Test F
DSP B1A08:13 Speaker #8: Circuit Open GO to Pinpoint Test G
DSP B1A09:01 Speaker #9: General Electrical Failure GO to Pinpoint Test F
DSP B1A09:01 Speaker #9: General Electrical Failure GO to Pinpoint Test G
DSP B1A09:11 Speaker #9: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A09:11 Speaker #9: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A09:12 Speaker #9: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A09:12 Speaker #9: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A09:13 Speaker #9: Circuit Open GO to Pinpoint Test F
DSP B1A09:13 Speaker #9: Circuit Open GO to Pinpoint Test G
DSP B1A10:01 Speaker #10: General Electrical Failure GO to Pinpoint Test F
DSP B1A10:01 Speaker #10: General Electrical Failure GO to Pinpoint Test G
DSP B1A10:11 Speaker #10: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A10:11 Speaker #10: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A10:12 Speaker #10: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A10:12 Speaker #10: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A10:13 Speaker #10: Circuit Open GO to Pinpoint Test F
DSP B1A10:13 Speaker #10: Circuit Open GO to Pinpoint Test G
DSP B1A11:01 Speaker #11: General Electrical Failure GO to Pinpoint Test F
DSP B1A11:01 Speaker #11: General Electrical Failure GO to Pinpoint Test G
DSP B1A11:11 Speaker #11: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A11:11 Speaker #11: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A11:12 Speaker #11: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A11:12 Speaker #11: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A11:13 Speaker #11: Circuit Open GO to Pinpoint Test F
DSP B1A11:13 Speaker #11: Circuit Open GO to Pinpoint Test G
DSP B1A12:01 Speaker #12: General Electrical Failure GO to Pinpoint Test F
DSP B1A12:01 Speaker #12: General Electrical Failure GO to Pinpoint Test G
DSP B1A12:11 Speaker #12: Circuit Short To Ground GO to Pinpoint Test F
DSP B1A12:11 Speaker #12: Circuit Short To Ground GO to Pinpoint Test G
DSP B1A12:12 Speaker #12: Circuit Short To Battery GO to Pinpoint Test F
DSP B1A12:12 Speaker #12: Circuit Short To Battery GO to Pinpoint Test G
DSP B1A12:13 Speaker #12: Circuit Open GO to Pinpoint Test F
DSP B1A12:13 Speaker #12: Circuit Open GO to Pinpoint Test G
DSP U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test Y
DSP U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test AA
DSP U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test AD
DSP U0184:00 Lost Communication With Radio: No Sub Type Information GO to Pinpoint Test AE
DSP U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test AK
DSP U0256:00 Lost Communication With Front Controls Interface Module 'A': No Sub Type Information GO to Pinpoint Test AL
DSP U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information GO to Pinpoint Test AP
DSP U0423:00 Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information GO to Pinpoint Test AP
DSP U201A:51 Control Module Main Calibration Data: Not Programmed GO to Pinpoint Test AQ
DSP U2024:41 Control Module Cal-Config Data: General Checksum Failure GO to Pinpoint Test AQ
DSP U2024:48 Control Module Cal-Config Data: Supervision Software Failure GO to Pinpoint Test AQ
DSP U2024:51 Control Module Cal-Config Data: Not Programmed GO to Pinpoint Test AQ
DSP U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test AQ
DSP U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test AQ
DSP U3000:41 Control Module: General Checksum Failure GO to Pinpoint Test AR
DSP U3000:42 Control Module: General Memory Failure GO to Pinpoint Test AR
DSP U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test AM
DSP U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test AN
FCIM B10B8:63 Push Buttons: Circuit/Component Protection Time-Out GO to Pinpoint Test AR
FCIM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test Y
FCIM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test AA
FCIM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information GO to Pinpoint Test AC
FCIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test AD
FCIM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test AK
FCIM U0401:00 Invalid Data Received from ECM/PCM A: No Sub Type Information GO to Pinpoint Test AP
FCIM U0401:82 Invalid Data Received from ECM/PCM A: Alive/Sequence Counter Incorrect/Not Updated GO to Pinpoint Test AP
FCIM U0422:68 Invalid Data Received From Body Control Module: Event Information GO to Pinpoint Test AP
FCIM U0422:81 Invalid Data Received From Body Control Module: Invalid Serial Data Received GO to Pinpoint Test AP
FCIM U1000:00 Solid State Driver Protection Active -Driver Disabled: No Sub Type Information GO to Pinpoint Test AS
FCIM U2024:51 Control Module Cal-Config Data: Not Programmed GO to Pinpoint Test AQ
FCIM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test AQ
FCIM U3000:41 Control Module: General Checksum Failure GO to Pinpoint Test AR
FCIM U3000:49 Control Module: Internal Electronic Failure GO to Pinpoint Test AR
FCIM U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test AM
FCIM U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test AN
RACM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test Y
RACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test AA
RACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information GO to Pinpoint Test AD
RACM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information GO to Pinpoint Test AR
RACM U0184:00 Lost Communication With Radio: No Sub Type Information GO to Pinpoint Test AE
RACM U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information GO to Pinpoint Test AG
RACM U0211:00 Lost Communication With 'Seat Control Module D': No Sub Type Information GO to Pinpoint Test AH
RACM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information GO to Pinpoint Test AI
RACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test AK
RACM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test AQ
RACM U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test AQ
RACM U3000:41 Control Module: General Checksum Failure GO to Pinpoint Test AR
RACM U3000:42 Control Module: General Memory Failure GO to Pinpoint Test AR
RACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test AM
RACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test AN
SCCM B137F:11 Steering Wheel Left Switch Pack: Circuit Short To Ground GO to Pinpoint Test I
SCCM B137F:13 Steering Wheel Left Switch Pack: Circuit Open GO to Pinpoint Test I
SCCM B137F:96 Steering Wheel Left Switch Pack: Component Internal Failure GO to Pinpoint Test I
SCCM B137F:9E Steering Wheel Left Switch Pack: Stuck On GO to Pinpoint Test I
SCCM B1380:11 Steering Wheel Right Switch Pack: Circuit Short To Ground GO to Pinpoint Test I
SCCM B1380:13 Steering Wheel Right Switch Pack: Circuit Open GO to Pinpoint Test I
SCCM B1380:96 Steering Wheel Right Switch Pack: Component Internal Failure GO to Pinpoint Test I
SCCM B1380:9E Steering Wheel Right Switch Pack: Stuck On GO to Pinpoint Test I
TCU B116C:04 External SIM Cable/SIM Card: System Internal Failures GO to Pinpoint Test AR
TCU B116C:57 External SIM Cable/SIM Card: Invalid/Incompatible Software Component GO to Pinpoint Test AR
TCU B1246:11 GSM (Group System for Mobile) Antenna: Circuit Short To Ground GO to Pinpoint Test T
TCU B1246:13 GSM (Group System for Mobile) Antenna: Circuit Open GO to Pinpoint Test T
TCU B1D55:11 Antenna #2: Circuit Short To Ground GO to Pinpoint Test U
TCU B1D55:13 Antenna #2: Circuit Open GO to Pinpoint Test U
TCU C006A:00 Multi-axis Acceleration Sensor: No Sub Type Information GO to Pinpoint Test AR
TCU U0001:09 High Speed CAN Communication Bus: Component Failures GO to Pinpoint Test AO
TCU U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information GO to Pinpoint Test Y
TCU U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test AA
TCU U0146:09 Lost Communication With Serial Data Gateway 'A': Component Failures GO to Pinpoint Test AB
TCU U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information GO to Pinpoint Test AP
TCU U0554:00 Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test AP
TCU U1A01:09 Communication Link: Component Failures GO to Pinpoint Test AQ
TCU U1A01:93 Communication Link: No Operation GO to Pinpoint Test AR
TCU U1A4B:52 Control Module Processor B: Not Activated GO to Pinpoint Test AR
TCU U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test AQ
TCU U2101:00 Control Module Configuration Incompatible: No Sub Type Information GO to Pinpoint Test AQ
TCU U2101:56 Control Module Configuration Incompatible: Invalid/Incompatible Configuration GO to Pinpoint Test AQ
TCU U2200:00 Control Module Configuration Memory Corrupt: No Sub Type Information GO to Pinpoint Test AR
TCU U3000:04 Control Module: System Internal Failures GO to Pinpoint Test AT
TCU U3000:09 Control Module: Component Failures GO to Pinpoint Test AR
TCU U3000:43 Control Module: Special Memory Failure GO to Pinpoint Test AR
TCU U3000:49 Control Module: Internal Electronic Failure GO to Pinpoint Test AR
TCU U3000:57 Control Module: Invalid/Incompatible Software Component GO to Pinpoint Test AU
TCU U3000:96 Control Module: Component Internal Failure GO to Pinpoint Test AR
TCU U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test AM
TCU U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test AN

Symptom Charts

Symptom Chart: Radio

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
A module does not respond to the diagnostic scan tool  
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
The AM radio is inoperative   GO to Pinpoint Test A
The FM radio is inoperative   GO to Pinpoint Test A
Poor AM reception   GO to Pinpoint Test A
Poor FM reception   GO to Pinpoint Test A
Continuous seek or scan in AM / FM mode   GO to Pinpoint Test A
The DAB feature is inoperative   GO to Pinpoint Test A
Poor satellite radio reception   GO to Pinpoint Test B
SIRIUS™ on-demand streaming content does not play or is not available   GO to Pinpoint Test B
SIRIUS™ content pausing repeatedly   GO to Pinpoint Test B
Poor sound quality or no sound while in satellite radio mode - all other functions operate correctly   GO to Pinpoint Test B
The satellite radio is inoperative or does not operate correctly   GO to Pinpoint Test B
The audio system does not operate correctly from the FCIM   GO to Pinpoint Test H
The audio system does not operate correctly from the RACM CARRY OUT the RACM self-test. DIAGNOSE the DTC present.
One or more audio steering wheel control button is inoperative   GO to Pinpoint Test I
The speed compensated volume is inoperative   GO to Pinpoint Test E
Unable to change the audio source   GO to Pinpoint Test C
The touchscreen displays Audio System Off at regular intervals   GO to Pinpoint Test C

Symptom Chart: Speakers and Sound Quality - 14 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
No sound from all speakers   GO to Pinpoint Test C
The left speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test K
The right speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test K
Poor sound quality or distorted sound from one or more speakers (not all speakers)   GO to Pinpoint Test D
The instrument panel center speaker is inoperative   GO to Pinpoint Test F
The left front door tweeter speaker is inoperative   GO to Pinpoint Test F
The right front door tweeter speaker is inoperative   GO to Pinpoint Test F
The left front door midrange speaker is inoperative   GO to Pinpoint Test F
The right front door midrange speaker is inoperative   GO to Pinpoint Test F
The left front door woofer speaker is inoperative   GO to Pinpoint Test F
The right front door woofer speaker is inoperative   GO to Pinpoint Test F
The left rear door tweeter speaker is inoperative   GO to Pinpoint Test F
The right rear door tweeter speaker is inoperative   GO to Pinpoint Test F
The left rear door woofer speaker is inoperative   GO to Pinpoint Test F
The right rear door woofer speaker is inoperative   GO to Pinpoint Test F
The subwoofer speaker is inoperative   GO to Pinpoint Test F

Symptom Chart: Speakers and Sound Quality - 28 Speaker System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
No sound from all speakers   GO to Pinpoint Test C
The left speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test K
The right speakers are inoperative when using Bluetooth and USB hub SYNC features   GO to Pinpoint Test K
Poor sound quality or distorted sound from one or more speakers (not all speakers)   GO to Pinpoint Test D
The instrument panel center speaker is inoperative   GO to Pinpoint Test G
The left front door tweeter speaker is inoperative   GO to Pinpoint Test G
The right front door tweeter speaker is inoperative   GO to Pinpoint Test G
The left front door midrange speaker is inoperative   GO to Pinpoint Test G
The right front door midrange speaker is inoperative   GO to Pinpoint Test G
The left front door woofer speaker is inoperative   GO to Pinpoint Test G
The right front door woofer speaker is inoperative   GO to Pinpoint Test G
The left rear door tweeter speaker is inoperative   GO to Pinpoint Test G
The right rear door tweeter speaker is inoperative   GO to Pinpoint Test G
The left rear door midrange speaker is inoperative   GO to Pinpoint Test G
The right rear door midrange speaker is inoperative   GO to Pinpoint Test G
The left rear door woofer speaker is inoperative   GO to Pinpoint Test G
The right rear door woofer speaker is inoperative   GO to Pinpoint Test G
The left D-pillar speaker is inoperative   GO to Pinpoint Test G
The right D-pillar speaker is inoperative   GO to Pinpoint Test G
The left front overhead speaker is inoperative   GO to Pinpoint Test G
The right front overhead speaker is inoperative   GO to Pinpoint Test G
The left rear overhead speaker is inoperative   GO to Pinpoint Test G
The right rear overhead speaker is inoperative   GO to Pinpoint Test G
The subwoofer speaker is inoperative   GO to Pinpoint Test G

Symptom Chart: Display Unit

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
The display unit is blank or black   GO to Pinpoint Test J
The display unit is not responsive to touch   GO to Pinpoint Test J
The display unit is slow to respond to touch   GO to Pinpoint Test J
The image on the display unit is incorrect, the image color is incorrect, or the image is distorted, flickering, or unclear   GO to Pinpoint Test J
The image on the display unit is locked or frozen   GO to Pinpoint Test J

Symptom Chart: SYNC Features/Media/Phone/Connectivity

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
The SYNC system does not operate correctly from the FCIM   GO to Pinpoint Test H
One or more steering wheel SYNC control button is inoperative   GO to Pinpoint Test I
The left speakers are inoperative when using Bluetooth and media hub SYNC features   GO to Pinpoint Test K
The right speakers are inoperative when using Bluetooth and media hub SYNC features   GO to Pinpoint Test K
The SYNC system audible prompts are inoperative or do not operate correctly   GO to Pinpoint Test K
During a phone call, no incoming audio is heard in the vehicle   GO to Pinpoint Test K
Poor sound quality, distorted, or no sound while in SYNC mode   GO to Pinpoint Test K
Voice commands are inoperative or outgoing audio is not transmitted during a phone call   GO to Pinpoint Test L
The SYNC system does not respond to the wake word   GO to Pinpoint Test M
Unable to pair Bluetooth device or a Bluetooth functionality is inoperative   GO to Pinpoint Test O
A USB device is not recognized by the SYNC system or audio files on a USB device are not found using the SYNC system from one or both USB ports   GO to Pinpoint Test N
The 911 Assist or Emergency Assistance Not Operational message displays   GO to Pinpoint Test P
Android Auto™ or Apple CarPlay™ is inoperative   GO to Pinpoint Test Q
SYNC AppLink is inoperative or does not operate correctly - vehicles equipped with a touchscreen display   GO to Pinpoint Test R
Lincoln Way is inoperative or does not operate correctly   GO to Pinpoint Test T
The vehicle Wi-Fi hotspot feature is inoperative, experiencing poor data speed or cannot stream any data   GO to Pinpoint Test U
Automatic system updates do not occur or are delayed  
REFER to: Module Configuration (418-01B Module Configuration - Vehicles With: Over-the-Air (OTA) Programming, Diagnosis and Testing).

Symptom Chart: Navigation/Compass

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
The compass is inoperative or does not operate correctly   GO to Pinpoint Test S
Navigation is inoperative or does not operate correctly   GO to Pinpoint Test S
Traffic announcement is inoperative (vehicles equipped with a DAB radio)   GO to Pinpoint Test B

Symptom Chart: Family Entertainment System

Diagnostics in this manual assume a certain skill level and knowledge of Ford-specific diagnostic practices.
REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).

Condition Actions
Video does not display on the passenger seat display screen   GO to Pinpoint Test W
The family entertainment system is inoperative   GO to Pinpoint Test X

Pinpoint Tests


PINPOINT TEST A: POOR AM (AMPLITUDE MODULATION) - FM (FREQUENCY MODULATION) RECEPTION

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

ACM Coaxial Cable Connections


Item Part Number Description
1 — AM/FM/DAB antenna cable connection
2 — FM2 antenna cable connection
3 — Satellite radio antenna cable connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A56:11 Antenna: Circuit Short To Ground Sets when the ACM detects a short to ground from the AM / FM 1 antenna cable.
ACM B1A56:15 Antenna: Circuit Short To Battery Or Open Sets when the ACM detects a short to voltage or an open from the AM / FM 1 antenna cable.

Possible Sources

  • Wiring, terminals, or connectors
  • Ignition system
  • Generator
  • Antenna cable
  • Antenna amplifier
  • ACM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Tool Kit (refer to the Rotunda catalog for the latest part number) or equivalent tool.

A1 CHECK THE AUDIO SYSTEM RECEPTION WITH THE ENGINE RUNNING AND WITH THE ENGINE OFF
  • Ignition OFF.
  • Operate the audio system in AM / FM mode.
  • Observe the radio reception.
  • Start the engine and observe the radio reception.

Does the poor reception only occur with the engine running?
Yes GO to A2
No GO to A4

A2 CHECK THE GENERATOR
  • Ignition OFF.
  • Disconnect the generator "A" connector.
  • NOTE: Do not increase the engine RPM above idle speed. Start the engine.
  • NOTE: Do not increase the RPM above idle speed. Incorrect test results may occur if the engine speed is increased above idle. With the engine at idle only, operate the audio system in AM / FM mode.

Is the reception OK?
Yes INSTALL a new generator. REFER to the appropriate Removal and Installation procedure in section 414-02.
No GO to A3

A3 CHECK THE IGNITION CIRCUITS
  • Ignition OFF.
  • Connect the generator "A" connector.
  • Inspect the engine compartment and make sure all ignition coils are correctly and securely connected, and no cracks are visible in the coil housings.
  • Inspect all the wiring harnesses and connectors for damaged insulation and loose or broken conditions.

Are the ignition components OK?
Yes USE a jumper cable to ground various parts of the vehicle to the frame (for example: engine, fenders, quarter panels, stone deflectors, air cleaner, and body sheet metal). When the noise is eliminated, PROVIDE a permanent ground where necessary.
No REPAIR the ignition system as necessary.

A4 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) ANTENNA VOLTAGE OUTPUT

NOTE: The AM / FM 1 antenna cable is also known as the audio unit antenna cable.

  • Ignition OFF.
  • Disconnect the AM / FM 1 antenna cable at the ACM .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the ACM . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    AM / FM 1 antenna cable core at the ACM (component side)   Ground

Is the voltage greater than 11 volts?
Yes GO to A5
No GO to A7

A5 CHECK FOR VOLTAGE TO THE ANTENNA AMPLIFIER
  • Ignition OFF.
  • Connect the AM / FM 1 antenna cable at the ACM .
  • Disconnect the AM / FM 1 antenna cable at the AM / FM 1 antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    AM / FM 1 antenna cable core   Ground

Is the voltage approximately 10 volts?
Yes GO to A6
No IDENTIFY the antenna cable with the open or short condition. INSTALL a new cable or antenna amplifier in question.

A6 CHECK THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) ANTENNA AMPLIFIER
  • Ignition OFF.
  • Install a new AM / FM antenna amplifier.
    REFER to: AM/FM1 Antenna Amplifier (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
  • Operate the audio system in AM / FM (and DAB if equipped) mode.

Is the reception OK?
Yes The repair is complete.
No GO to A7

A7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B: SATELLITE RADIO/SIRIUS™ STREAMING CONTENT/TRAFFIC ANNOUNCEMENT CONCERN

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

When a satellite radio subscription is active, the ESN of the satellite radio receiver built into the ACM associates with the VIN .

ACM Coaxial Cable Connections


Item Part Number Description
1 — AM/FM/DAB antenna cable connection
2 — FM2 antenna cable connection
3 — Satellite radio antenna cable connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B1A89:11 Satellite Antenna: Circuit Short To Ground Sets when the ACM detects a short to ground from the satellite radio cable.
ACM B1A89:13 Satellite Antenna: Circuit Open Sets when the ACM detects an open from the satellite radio cable.
APIM U1A00:87 Private Communication Network: Missing Message Sets when the APIM does not receive a valid response from the ACM over the serial data circuits.
APIM U1A00:94 Private Communication Network: Unexpected Operation Sets when the APIM does not receive a valid response from the ACM over the serial data circuits.

Possible Sources

  • Expired subscription
  • Vehicle Connectivity or the SiriusXM™ with 360L setting disabled
  • Compass concern
  • Ethernet cable concern
  • Cellular data input concern
  • Obstructions in the antenna line of sight
  • Incorrectly matched ESN
  • Wiring, terminals, or connectors
  • Lower satellite radio antenna cable (includes GPS splitter)
  • GPS /satellite radio antenna
  • ACM
  • APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Tool Kit (refer to the Rotunda catalog for the latest part number) or equivalent tool.

NOTE: Carrying out a Master Reset of the SYNC system prior to diagnostics may resolve some satellite radio/traffic announcement concerns.

B1 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U1A00:87
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U1A00:87 or U1A00:94 present?
Yes GO to B16
No For vehicles equipped with a satellite radio, GO to B2
For vehicles not equipped with a satellite radio, GO to B14

B2 CHECK FOR PROMOTIONAL CHANNEL 1
  • Select channel 1.

Does the satellite radio system receive channel 1 with normal sound quality?
Yes GO to B3
No GO to B10

B3 VERIFY AN ACTIVE SUBSCRIPTION
  • For a Sirius Radio concern, operate the audio system in satellite radio mode and observe the display.

Does the display indicate the subscription has expired?
Yes GO to B4
No For a SIRIUS on-demand streaming data concern, GO to B6
For all other satellite radio concerns, GO to B9

B4 CHECK THE VEHICLE SERVICE HISTORY FOR ACM (AUDIO FRONT CONTROL MODULE) REPLACEMENT
  • Check the vehicle service history and determine if the ACM was replaced.

Does the vehicle service history indicate the ACM was recently replaced?
Yes GO to B5
No The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.

B5 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE
  • Retrieve the satellite radio ESN by tuning to channel 0.
  • Contact the SIRIUS Dealer Support.
  • Make sure the VIN and the ESN SIRIUS has on the customer file match the VIN and the ESN retrieved from the vehicle.

Does the VIN and the ESN on the SIRIUS customer file match the ESN and VIN retrieved from the vehicle?
Yes The subscription has expired. INSTRUCT the vehicle owner to contact SIRIUS to reactivate the subscription.
No INSTRUCT the vehicle owner to contact SIRIUS to update the VIN and the ESN retrieved from the vehicle.

B6 CHECK THE CONNECTIVITY SETTINGS USING THE TOUCHSCREEN DISPLAY UNIT
  • Access the settings menu on the display unit. Make sure the Vehicle Connectivity and the SiriusXM with 360L settings are enabled.

Are the Vehicle Connectivity and the SiriusXM with 360L settings enabled?
Yes GO to B7
No ENABLE the Vehicle Connectivity and the SiriusXM with 360L settings.

B7 CHECK FOR GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the GWM self-test.

Are any GWM Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to B8

B8 CHECK THE CELLULAR SIGNAL STRENGTH
  • Drive the vehicle to an outdoor location that is free from obstacles such as tall buildings.
  • Observe the cellular signal strength on the display unit.

Does the display indicate a good cellular strength signal of at least 2 bars?
Yes GO to B9
No GO to Pinpoint Test T

B9 VERIFY THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) ON FILE MATCHES THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THE ESN (ELECTRONIC SERIAL NUMBER) FROM THE VEHICLE
  • Retrieve the satellite radio ESN by tuning to channel 0.
  • Contact the SIRIUS Dealer Support.
  • Make sure the VIN and the ESN SIRIUS has on the file match the VIN and the ESN retrieved from the vehicle.
  • Drive the vehicle to an open location free from obstacles such as tall buildings or large trees.
  • Operate the audio system in satellite radio mode.
  • NOTE: It may take up to 30 minutes for the activation signal to be received and satellite radio functions to operate. Request for SIRIUS to send the activation signal to the vehicle 2-3 times.
  • Operate multiple channels with the audio system in satellite radio mode.

Does the satellite radio system receive multiple channels with normal sound quality?
Yes The system is operating correctly. The concern may have been caused by the SIRIUS file information not matching the vehicle or a result of the activation signal needing to be resent.
No GO to B12

B10 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the satellite radio antenna cable at the ACM .
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Satellite radio antenna cable core at the ACM (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to B11
No GO to B20

B11 CHECK FOR VOLTAGE TO THE GPS (GLOBAL POSITIONING SYSTEM) /SATELLITE RADIO ANTENNA
  • Ignition OFF.
  • Connect the satellite radio antenna cable at the ACM .
  • Disconnect the satellite radio antenna cable at the roof mounted antenna.
  • Ignition ON.
  • Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    GPS antenna cable core at the roof mounted antenna, pin 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to B12
No IDENTIFY the cable with the open or short. INSTALL a new GPS /satellite radio cable for the one in question.

B12 ISOLATE THE GPS (GLOBAL POSITIONING SYSTEM) /SATELLITE RADIO ANTENNA SPLITTER CABLE
  • INSTALL a new GPS /satellite radio antenna splitter cable.
  • For a satellite radio concern, check the operation of the satellite radio function.
  • For a Sirius on-demand streaming concern, check the operation of this feature.

Does the system in question operate correctly?
Yes The repair is complete. The concern was caused by the original GPS /satellite radio antenna splitter cable.
No GO to B13

B13 CHECK THE ANTENNA BASE AND MOUNTING SURFACE
  • Remove the GPS /satellite radio antenna.
  • Inspect for corrosion on the audio unit antenna base and the vehicle mounting surface.

Is antenna base and mounting free of corrosion?
Yes GO to B15
No REPAIR any corrosion on the antenna unit base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.

B14 VERIFY THE COMPASS OPERATES CORRECTLY
  • Ignition ON.
  • Check the operation of the compass and make sure it operates correctly.

Does the compass operate correctly?
Yes GO to B15
No GO to Pinpoint Test S

B15 ISOLATE THE GPS (GLOBAL POSITIONING SYSTEM) /SATELLITE RADIO ANTENNA
  • INSTALL a new GPS /satellite radio antenna.
  • For a satellite radio concern, check the operation of the satellite radio function.
  • For a Sirius on-demand streaming concern, check the operation of this feature.
  • For a traffic announcement (vehicles with a DAB radio) concern, check the operation of the traffic announcement feature.

Does the system in question operate correctly?
Yes The repair is complete. The concern was caused by the original GPS /satellite radio antenna.
No GO to B16

B16 CHECK THE SERIAL DATA CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C240A and C240B .
  • Disconnect APIM C2383A .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   Ground
      C2383A-28   Ground
      C2383A-51   Ground
      C2383A-52   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to B17
No REPAIR the circuit in question.

B17 CHECK THE SERIAL DATA CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   Ground
      C2383A-28   Ground
      C2383A-51   Ground
      C2383A-52   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to B18

B18 CHECK THE SERIAL DATA CIRCUITS FOR A SHORT TOGETHER
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2383A-27   C2383A-28
      C2383A-51   C2383A-52

Is the resistance greater than 10,000 ohms?
Yes GO to B19
No REPAIR the circuits.

B19 CHECK THE SERIAL DATA CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      ACM C240A


    Positive Lead Measurement / Action Negative Lead
      C2383A-27   C240A-14
      C2383A-28   C240A-25

    Click to display connectors

      ACM C240B


    Positive Lead Measurement / Action Negative Lead
      C2383A-51   C240B-18
      C2383A-52   C240B-29

Are the resistances less than 3 ohms?
Yes GO to B20
No REPAIR the circuit in question.

B20 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition ON.
  • Disconnect and inspect all ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to B21
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

B21 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AY
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST C: NO SOUND FROM ALL SPEAKERS

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

A short to ground or voltage in the circuitry to one of the speakers may cause multiple speakers to lose sound due to the built-in overload protection feature of the ACM . In this case, a speaker fault DTC sets.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B150C:01 Automobile Audio Bus (A2B) Node 1: General Electrical Failure Sets when the ACM detects short circuits from the A2B cable.
ACM B150C:11 Automobile Audio Bus (A2B) Node 1: Circuit Short To Ground Sets when the ACM detects a short to ground from the A2B cable circuitry.
ACM B150C:12 Automobile Audio Bus (A2B) Node 1: Circuit Short To Battery Sets when the ACM detects a short to voltage from the A2B cable circuitry.
ACM B150C:13 Automobile Audio Bus (A2B) Node 1: Circuit Open Sets when the ACM detects an open within the A2B circuitry.
ACM B150C:55 Automobile Audio Bus (A2B) Node 1: Not Configured Sets when the ACM detects a fault attempting to configure the DSP as Slave 1.
ACM B150C:87 Automobile Audio Bus (A2B) Node 1: Missing Message Sets when the ACM detects a fault trying to communicate to the DSP .
ACM B150C:8F Automobile Audio Bus (A2B) Node 1: Erratic Sets when the ACM detects a fault trying to communicate to the DSP .
ACM B150C:95 Automobile Audio Bus (A2B) Node 1: Incorrect Assembly Sets when the ACM detects the A2B cable circuitry is reversed.
ACM B1511:01 Automobile Audio Bus (A2B) Master Node: General Electrical Failure Sets when the ACM detects a fault trying to communicate to the DSP .
ACM B1511:11 Automobile Audio Bus (A2B) Master Node: Circuit Short To Ground Sets when the ACM detects a short to ground from the Automobile Audio Bus (A2B).
ACM B1511:12 Automobile Audio Bus (A2B) Master Node: Circuit Short To Battery Sets when the ACM detects a short to voltage from the Automobile Audio Bus (A2B).
ACM B1511:13 Automobile Audio Bus (A2B) Master Node: Circuit Open Sets when the ACM detects an open from the Automobile Audio Bus (A2B) cable.
ACM B1511:95 Automobile Audio Bus (A2B) Master Node: Incorrect Assembly Sets when the ACM detects the A2B cable circuitry is reversed.
DSP B13FB:11 Audio Enable Line: Circuit Short To Ground Sets when the DSP does not detect the correct voltage signal from the enable circuit 5 seconds after receiving the ignition mode RUN message from the BCM .

Possible Sources

  • Network communication concern
  • Wiring, terminals, or connectors
  • Automobile Audio Bus (A2B) cable
  • Module configuration
  • DSP
  • ACM
C1 VERIFY THE ACM (AUDIO FRONT CONTROL MODULE) PASSES THE NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?
Yes GO to C2
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

C2 VERIFY THE APIM (SYNC MODULE) PASSES THE NETWORK TEST
  • Review the results from the network test.

Does the APIM pass the network test?
Yes GO to C3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

C3 VERIFY THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) PASSES THE NETWORK TEST
  • Review the results from the network test.

Does the DSP pass the network test?
Yes GO to C4
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

C4 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to C5

C5 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes For any Automobile Audio Bus (A2B) DTC , GO to C13
For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section.
No GO to C6

C6 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any speaker-related Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to C7

C7 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR CORRECT VOLTAGE
  • Ignition OFF.
  • Disconnect DSP C4348C (14 speaker system) or C4548C (28 speaker system).
  • Ignition ON.
  • Turn the audio system on.
  • Measure:
    Click to display connectors

      14 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4348C-6   Ground

    Click to display connectors

      28 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4548C-10   Ground

Is the voltage between 3.5 and 7 volts?
Yes GO to C12
No GO to C8

C8 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C240B .
  • Measure:
    Click to display connectors

      14 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4348C-6   Ground

    Click to display connectors

      28 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4548C-10   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to C9
No REPAIR the circuit.

C9 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors

      14 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4348C-6   Ground

    Click to display connectors

      28 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4548C-10   Ground

Is any voltage present?
Yes REPAIR the circuit.
No GO to C10

C10 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) ENABLE CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Click to display connectors

      14 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4348C-6   C240B-23

    Click to display connectors

      28 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4548C-10   C240B-23

Is the resistance less than 3 ohms?
Yes GO to C11
No REPAIR the circuit.

C11 CHECK THE ACM (AUDIO FRONT CONTROL MODULE) CONFIGURATION
  • Connect DSP C4348C (14 speaker system) or C4548C (28 speaker system).
  • Connect ACM C240B .
  • Ignition ON.
  • Carry out the PMI \ programming for the ACM using as-built data.
    REFER to: Module Programming (418-01A Module Configuration, General Procedures).
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The system is operating correctly. The cause may have been caused by incorrect module configuration.
No GO to C17

C12 CHECK THE DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONFIGURATION
  • Ignition OFF.
  • Connect DSP C4348C (14 speaker system) or C4548C (28 speaker system).
  • Ignition ON.
  • Carry out the PMI programming for the DSP using as-built data.
    REFER to: Module Programming (418-01A Module Configuration, General Procedures).
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The system is operating correctly. The cause may have been caused by incorrect module configuration.
No GO to C13

C13 CHECK THE REAR AUTOMOBILE AUDIO BUS (A2B) CABLE
  • Ignition OFF.
  • Install a new rear Automobile Audio Bus (A2B) cable.
  • Ignition ON.
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The repair is complete.
No GO to C14

C14 CHECK THE CENTER AUTOMOBILE AUDIO BUS (A2B) CABLE
  • Ignition OFF.
  • Install a new center Automobile Audio Bus (A2B) cable.
  • Ignition ON.
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The repair is complete.
No GO to C15

C15 CHECK THE FRONT AUTOMOBILE AUDIO BUS (A2B) CABLE
  • Ignition OFF.
  • Install a new front Automobile Audio Bus (A2B) cable.
  • Ignition ON.
  • Test the audio system for correct speaker operation.

Is sound heard from all of the speakers?
Yes The repair is complete.
No GO to C16

C16 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to C17
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

C17 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D: POOR SOUND QUALITY OR DISTORTED SOUND FROM ONE OR MORE SPEAKERS (NOT ALL SPEAKERS)

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Loose component fasteners
  • Loose door handle, lock or other trim panel components and fasteners
  • Loose items in storage areas
  • Loose speaker grilles
  • Loose wire harnesses or wire harness fasteners
  • Speaker
  • Trim panel
  • Water shield bonding and placement

Visual Inspection and Pre-checks

  • Any map pockets and storage compartments (including cup holders) for contents that can rattle (if equipped)
  • Door pull cup attachments for correct fit (if equipped)
  • Door switch bezels for correct fit (if equipped)
  • Speaker grilles for correct fit
  • Trim panels for correct fit
D1 ISOLATE THE ZONE
  • Download all the diagnostic sound tracks to a suitable USB flash drive and connect it to the media hub.
    REFER to: Speaker Audio Test (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, General Procedures).
  • Operate the audio system in USB mode using the downloaded audio files.
  • Using the audio system fade and balance settings, adjust the audio sound to each of the zones and use the 6 diagnostic sound tracks to isolate the poor sound quality.
  • Locate and apply pressure to the trim panel(s) around the poor sound quality area in question.

Does applying pressure to a trim panel reduce or eliminate the noise?
Yes REPAIR or REPLACE the trim panel as needed.
No GO to D2

D2 REMOVE AND INSPECT BEHIND/UNDERNEATH THE SUSPECT TRIM PANEL
  • Remove the trim panel to access the suspect speaker.
  • Operate the audio system in USB mode using the downloaded audio files.
  • Validate where the poor sound quality area is located.
  • Check:
    • Trim panel for loose components (speaker grille for example) around the speaker area.
    • Trim panel joining components for missing or broken pieces.
    • Door latch mechanical parts for correct attachment.
    • Wire harnesses for correct routing and attachment.
    • Water shield for correct placement (speaker air path not blocked).
    • Water shield for correct bonding to sheet metal.
    • Storage areas for loose items.
    • All safety belt retractors.
    • All speaker bracket and related fasteners. Make sure they are secure and tightened to specified torque.

Is the source of the noise located?
Yes REPAIR or REPLACE any loose or broken component or fastener as necessary.
No GO to D3

D3 CHECK THE SUSPECT SPEAKER FOR WATER INTRUSION
  • Inspect for watermarks.
  • Check the following speaker components:
    • Cone
    • Magnet
    • Basket

Are any watermarks present on the speaker?
Yes VERIFY the water shield is in the correct location, REPAIR or REPLACE any trim, door or speaker seal as required. DRY the speaker in question. TEST the system for normal operation.
No GO to D4

D4 ISOLATE THE SUSPECT SPEAKER TO VERIFY NOISE
  • Remove the suspect speaker from its location and leave the speaker connected to the harness.
  • Hold the speaker away from any trim panel and make sure the speaker is isolated from contact.
  • Operate the audio system in USB mode using the downloaded audio files.

Is the noise still present in the suspect speaker?
Yes INSTALL a new speaker for the one in question.
No LOCATE the source of the noise and REPAIR as necessary.

PINPOINT TEST E: THE SPEED COMPENSATED VOLUME IS INOPERATIVE

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Speed compensated volume setting
  • Network communication concern
  • Module configuration
  • DSP
E1 CHECK THE SPEED COMPENSATED VOLUME SETTING

NOTE: Refer to the Owner Literature to access the speed compensated volume settings.

  • Turn the speed compensated volume off.
  • Operate the audio system in AM / FM mode.
  • Drive the vehicle at various speeds and observe the speaker volume.
  • Set the speed compensated volume to maximum compensation.
  • Drive the vehicle at various speeds and observe the speaker volume.

Does the volume remain constant with the speed compensated volume turned off, and increase and decrease with vehicle speed with the speed compensated volume set to maximum?
Yes The system is operating correctly at this time. INFORM the vehicle owner in the correct usage of the speed compensated volume feature.
No GO to E2

E2 CHECK FOR COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Carry out the DSP self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC chart in this section.
No GO to E3

E3 CARRY OUT PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE
  • Carry out the PMI for the DSP .
  • Check the operation of the speed compensated volume feature.

Does the speed compensated volume feature operate?
Yes The repair is complete.
No GO to E4

E4 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST F: ONE OR MORE SPEAKER IS INOPERATIVE - DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONTROLLED 14 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP B1A01:01 Speaker #1: General Electrical Failure Sets when the DSP detects the subwoofer channel 1 speaker circuits are shorted together.
DSP B1A01:11 Speaker #1: Circuit Short To Ground Sets when the DSP detects a short to ground from the subwoofer channel 1 speaker circuits.
DSP B1A01:12 Speaker #1: Circuit Short To Battery Sets when the DSP detects a short to voltage from the subwoofer channel 1 speaker circuits.
DSP B1A01:13 Speaker #1: Circuit Open Sets when the DSP detects an open from the subwoofer channel 1 speaker circuits.
DSP B1A02:01 Speaker #2: General Electrical Failure Sets when the DSP detects the left front door midrange speaker circuits are shorted together.
DSP B1A02:11 Speaker #2: Circuit Short To Ground Sets when the DSP detects a short to ground from the left front door midrange speaker circuits.
DSP B1A02:12 Speaker #2: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front door midrange speaker circuits.
DSP B1A02:13 Speaker #2: Circuit Open Sets when the DSP detects an open from the left front door midrange speaker circuits.
DSP B1A03:01 Speaker #3: General Electrical Failure Sets when the DSP detects the right front door midrange speaker circuits are shorted together.
DSP B1A03:11 Speaker #3: Circuit Short To Ground Sets when the DSP detects a short to ground from the right front door midrange speaker circuits.
DSP B1A03:12 Speaker #3: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right front door midrange speaker circuits.
DSP B1A03:13 Speaker #3: Circuit Open Sets when the DSP detects an open from the right front door midrange speaker circuits.
DSP B1A04:01 Speaker #4: General Electrical Failure Sets when the DSP detects the instrument panel center speaker midrange circuits are shorted together.
DSP B1A04:11 Speaker #4: Circuit Short To Ground Sets when the DSP detects a short to ground from the instrument panel center speaker midrange circuits.
DSP B1A04:12 Speaker #4: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front door speaker circuits.
DSP B1A04:13 Speaker #4: Circuit Open Sets when the DSP detects an open from the instrument panel center speaker midrange circuits.
DSP B1A05:01 Speaker #5: General Electrical Failure Sets when the DSP detects the left front door woofer speaker circuits are shorted together.
DSP B1A05:11 Speaker #5: Circuit Short To Ground Sets when the DSP detects a short to ground from the left front door woofer speaker circuits.
DSP B1A05:12 Speaker #5: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front door woofer speaker circuits.
DSP B1A05:13 Speaker #5: Circuit Open Sets when the DSP detects an open from the left front door woofer speaker circuits.
DSP B1A06:01 Speaker #6: General Electrical Failure Sets when the DSP detects the left front door tweeter speaker circuits are shorted together.
DSP B1A06:11 Speaker #6: Circuit Short To Ground Sets when the DSP detects a short to ground from the left front door tweeter speaker circuits.
DSP B1A06:12 Speaker #6: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front door tweeter speaker circuits.
DSP B1A06:13 Speaker #6: Circuit Open Sets when the DSP detects an open from the left front door tweeter speaker circuits.
DSP B1A07:01 Speaker #7: General Electrical Failure Sets when the DSP detects the right front door tweeter speaker circuits are shorted together.
DSP B1A07:11 Speaker #7: Circuit Short To Ground Sets when the DSP detects a short to ground from the right front door tweeter speaker circuits.
DSP B1A07:12 Speaker #7: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right front door tweeter speaker circuits.
DSP B1A07:13 Speaker #7: Circuit Open Sets when the DSP detects an open from the right front door tweeter speaker circuits.
DSP B1A08:01 Speaker #8: General Electrical Failure Sets when the DSP detects the right front door woofer speaker circuits are shorted together.
DSP B1A08:11 Speaker #8: Circuit Short To Ground Sets when the DSP detects a short to ground from the right front door woofer speaker circuits.
DSP B1A08:12 Speaker #8: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right front door woofer speaker circuits.
DSP B1A08:13 Speaker #8: Circuit Open Sets when the DSP detects an open from the right front door woofer speaker circuits.
DSP B1A09:01 Speaker #9: General Electrical Failure Sets when the DSP detects the left rear door speaker circuits are shorted together.
DSP B1A09:11 Speaker #9: Circuit Short To Ground Sets when the DSP detects a short to ground from the left rear door speaker circuits.
DSP B1A09:12 Speaker #9: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left rear door speaker circuits.
DSP B1A09:13 Speaker #9: Circuit Open Sets when the DSP detects an open from the left rear door speaker circuits.
DSP B1A10:01 Speaker #10: General Electrical Failure Sets when the DSP detects the right rear door speaker circuits are shorted together.
DSP B1A10:11 Speaker #10: Circuit Short To Ground Sets when the DSP detects a short to ground from the right rear door speaker circuits.
DSP B1A10:12 Speaker #10: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right rear door speaker circuits.
DSP B1A10:13 Speaker #10: Circuit Open Sets when the DSP detects an open from the right rear door speaker circuits.
DSP B1A11:01 Speaker #11: General Electrical Failure Sets when the DSP detects the instrument panel center speaker tweeter circuits are shorted together.
DSP B1A11:11 Speaker #11: Circuit Short To Ground Sets when the DSP detects a short to ground from the instrument panel center speaker tweeter circuits.
DSP B1A11:12 Speaker #11: Circuit Short To Battery Sets when the DSP detects a short to voltage from the instrument panel center speaker tweeter circuits.
DSP B1A11:13 Speaker #11: Circuit Open Sets when the DSP detects an open from the instrument panel center speaker tweeter circuits.
DSP B1A12:01 Speaker #12: General Electrical Failure Sets when the DSP detects the subwoofer channel 2 speaker circuits are shorted together.
DSP B1A12:11 Speaker #12: Circuit Short To Ground Sets when the DSP detects a short to ground from the subwoofer channel 2 speaker circuits.
DSP B1A12:12 Speaker #12: Circuit Short To Battery Sets when the DSP detects a short to voltage from the subwoofer channel 2 speaker circuits.
DSP B1A12:13 Speaker #12: Circuit Open Sets when the DSP detects an open from the subwoofer channel 2 speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • DSP

NOTE: The rear door woofer speaker and corresponding door tweeter speaker share the same circuitry. If a concern exists with both speakers, retest the system with the tweeter speaker disconnected to determine if the tweeter speaker is the cause of the concern.

F1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to F2

F2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is disconnected.

  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect DSP C4348A and C4348B .
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   Ground
      C2359-2   Ground
      C2359-3   Ground
      C2359-4   Ground

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C569-1   Ground
      C569-3   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   Ground
      C645-3   Ground

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   Ground
      C563-4   Ground

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   Ground
      C628-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   Ground
      C744-3   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   Ground
      C844-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   Ground
      C702-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   Ground
      C466-2   Ground
      C466-3   Ground
      C466-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to F3
No REPAIR the circuit in question.

F3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   Ground
      C2359-2   Ground
      C2359-3   Ground
      C2359-4   Ground

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C569-1   Ground
      C569-3   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   Ground
      C645-3   Ground

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   Ground
      C563-4   Ground

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   Ground
      C628-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   Ground
      C744-3   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   Ground
      C844-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   Ground
      C702-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   Ground
      C466-2   Ground
      C466-3   Ground
      C466-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to F4

F4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER
  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   C2359-2
      C2359-3   C2359-4

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C569-1   C569-3

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C645-3

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   C563-4

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   C628-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   C744-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   C844-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C702-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C466-2
      C466-3   C466-4

Are the resistances greater than 10,000 ohms?
Yes GO to F5
No REPAIR the circuits.

F5 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   C4348B-11
      C2359-2   C4348B-1
      C2359-3   C4348B-19
      C2359-4   C4348B-9

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C569-1   C4348B-14
      C569-3   C4348B-4

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C4348B-15
      C645-3   C4348B-5

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   C4348A-19
      C563-4   C4348A-9

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   C4348B-12
      C628-3   C4348B-2

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C4348B-13
      C536-4   C4348B-3

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C4348B-16
      C642-4   C4348B-6

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   C702-2
      C744-3   C702-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   C802-2
      C844-3   C802-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C4348B-17
      C702-4   C4348B-7

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C4348B-18
      C802-4   C4348B-8

    Click to display connectors

      Subwoofer Speaker Channel 1


    Positive Lead Measurement / Action Negative Lead
      C466-1   C4348A-20
      C466-2   C4348A-10

    Click to display connectors

      Subwoofer Speaker Channel 2


    Positive Lead Measurement / Action Negative Lead
      C466-3   C4348B-20
      C466-4   C4348B-10

Are the resistances less than 3 ohms?
Yes GO to F6
No REPAIR the circuit in question.

F6 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is connected.

  • Connect DSP C4348A and C4348B .
  • Ignition ON.
  • Operate the audio system in AM / FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   C2359-2
      C2359-3   C2359-4

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C569-1   C569-3

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C645-1   C645-3

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   C563-4

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   C628-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C744-1   C744-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C844-1   C844-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C702-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C466-2
      C466-3   C466-4

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to F7

F7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G: ONE OR MORE SPEAKER IS INOPERATIVE - DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) CONTROLLED 28 SPEAKER SYSTEM

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP B128A:01 Speaker #13: General Electrical Failure Sets when the DSP detects the left rear door midrange speaker circuits are shorted together.
DSP B128A:11 Speaker #13: Circuit Short To Ground Sets when the DSP detects a short to ground from the left rear door midrange speaker circuits.
DSP B128A:12 Speaker #13: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left rear door midrange speaker circuits.
DSP B128A:13 Speaker #13: Circuit Open Sets when the DSP detects an open from the left rear door midrange speaker circuits.
DSP B128B:01 Speaker #14: General Electrical Failure Sets when the DSP detects the right rear overhead speaker circuits are shorted together.
DSP B128B:11 Speaker #14: Circuit Short To Ground Sets when the DSP detects a short to ground from the right rear overhead speaker circuits.
DSP B128B:12 Speaker #14: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right rear overhead speaker circuits.
DSP B128B:13 Speaker #14: Circuit Open Sets when the DSP detects an open from the right rear overhead speaker circuits.
DSP B128C:01 Speaker #15: General Electrical Failure Sets when the DSP detects the left front door tweeter speaker circuits are shorted together.
DSP B128C:11 Speaker #15: Circuit Short To Ground Sets when the DSP detects a short to ground from the left front door tweeter speaker circuits.
DSP B128C:12 Speaker #15: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front door tweeter speaker circuits.
DSP B128C:13 Speaker #15: Circuit Open Sets when the DSP detects an open from the left front door tweeter speaker circuits.
DSP B128D:01 Speaker #16: General Electrical Failure Sets when the DSP detects the right front door tweeter speaker circuits are shorted together.
DSP B128D:11 Speaker #16: Circuit Short To Ground Sets when the DSP detects a short to ground from the right front door tweeter speaker circuits.
DSP B128D:12 Speaker #16: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right front door tweeter speaker circuits.
DSP B128D:13 Speaker #16: Circuit Open Sets when the DSP detects an open from the right front door tweeter speaker circuits.
DSP B128E:01 Speaker #17: General Electrical Failure Sets when the DSP detects the right rear overhead speaker circuits are shorted together.
DSP B128E:11 Speaker #17: Circuit Short To Ground Sets when the DSP detects a short to ground from the right rear overhead speaker circuits.
DSP B128E:12 Speaker #17: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right rear overhead speaker circuits.
DSP B128E:13 Speaker #17: Circuit Open Sets when the DSP detects an open from the right rear overhead speaker circuits.
DSP B128F:01 Speaker #18: General Electrical Failure Sets when the DSP detects the right front overhead circuits are shorted together.
DSP B128F:11 Speaker #18: Circuit Short To Ground Sets when the DSP detects a short to ground from the right front overhead speaker circuits.
DSP B128F:12 Speaker #18: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right front overhead speaker circuits.
DSP B128F:13 Speaker #18: Circuit Open Sets when the DSP detects an open from the right front overhead speaker circuits.
DSP B1290:01 Speaker #19: General Electrical Failure Sets when the DSP detects the left front overhead speaker circuits are shorted together.
DSP B1290:11 Speaker #19: Circuit Short To Ground Sets when the DSP detects a short to ground from the left front overhead speaker circuits.
DSP B1290:12 Speaker #19: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front overhead speaker circuits.
DSP B1290:13 Speaker #19: Circuit Open Sets when the DSP detects an open from the left front overhead speaker circuits.
DSP B1291:01 Speaker #20: General Electrical Failure Sets when the DSP detects the instrument panel center speaker tweeter circuits are shorted together.
DSP B1291:11 Speaker #20: Circuit Short To Ground Sets when the DSP detects a short to ground from the instrument panel center speaker tweeter circuits.
DSP B1291:12 Speaker #20: Circuit Short To Battery Sets when the DSP detects a short to voltage from the instrument panel center speaker tweeter circuits.
DSP B1291:13 Speaker #20: Circuit Open Sets when the DSP detects an open from the instrument panel center speaker tweeter circuits.
DSP B1A01:01 Speaker #1: General Electrical Failure Sets when the DSP detects the subwoofer channel 1 speaker circuits are shorted together.
DSP B1A01:11 Speaker #1: Circuit Short To Ground Sets when the DSP detects a short to ground from the subwoofer channel 1 speaker circuits.
DSP B1A01:12 Speaker #1: Circuit Short To Battery Sets when the DSP detects a short to voltage from the subwoofer channel 1 speaker circuits.
DSP B1A01:13 Speaker #1: Circuit Open Sets when the DSP detects an open from the subwoofer channel 1 speaker circuits.
DSP B1A02:01 Speaker #2: General Electrical Failure Sets when the DSP detects the left D-pillar speaker circuits are shorted together.
DSP B1A02:11 Speaker #2: Circuit Short To Ground Sets when the DSP detects a short to ground from the left D-pillar speaker circuits.
DSP B1A02:12 Speaker #2: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left D-pillar speaker circuits.
DSP B1A02:13 Speaker #2: Circuit Open Sets when the DSP detects an open from the left D-pillar speaker circuits.
DSP B1A03:01 Speaker #3: General Electrical Failure Sets when the DSP detects the right front door woofer speaker circuits are shorted together.
DSP B1A03:11 Speaker #3: Circuit Short To Ground Sets when the DSP detects a short to ground from the right front door woofer speaker circuits.
DSP B1A03:12 Speaker #3: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right front door woofer speaker circuits.
DSP B1A03:13 Speaker #3: Circuit Open Sets when the DSP detects an open from the right front door woofer speaker circuits.
DSP B1A04:01 Speaker #4: General Electrical Failure Sets when the DSP detects the left front door midrange speaker circuits are shorted together.
DSP B1A04:11 Speaker #4: Circuit Short To Ground Sets when the DSP detects a short to ground from the left front door midrange speaker circuits.
DSP B1A04:12 Speaker #4: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front door midrange speaker circuits.
DSP B1A04:13 Speaker #4: Circuit Open Sets when the DSP detects an open from the left front door midrange speaker circuits.
DSP B1A05:01 Speaker #5: General Electrical Failure Sets when the DSP detects the left front door woofer speaker circuits are shorted together.
DSP B1A05:11 Speaker #5: Circuit Short To Ground Sets when the DSP detects a short to ground from the left front door woofer speaker circuits.
DSP B1A05:12 Speaker #5: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left front door woofer speaker circuits.
DSP B1A05:13 Speaker #5: Circuit Open Sets when the DSP detects an open from the left front door woofer speaker circuits.
DSP B1A06:01 Speaker #6: General Electrical Failure Sets when the DSP detects the subwoofer channel 2 speaker circuits are shorted together.
DSP B1A06:11 Speaker #6: Circuit Short To Ground Sets when the DSP detects a short to ground from the subwoofer channel 2 speaker circuits.
DSP B1A06:12 Speaker #6: Circuit Short To Battery Sets when the DSP detects a short to voltage from the subwoofer channel 2 speaker circuits.
DSP B1A06:13 Speaker #6: Circuit Open Sets when the DSP detects an open from the subwoofer channel 2 speaker circuits.
DSP B1A07:01 Speaker #7: General Electrical Failure Sets when the DSP detects the right front door midrange speaker circuits are shorted together.
DSP B1A07:11 Speaker #7: Circuit Short To Ground Sets when the DSP detects a short to ground from the right front door midrange speaker circuits.
DSP B1A07:12 Speaker #7: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right front door midrange speaker circuits.
DSP B1A07:13 Speaker #7: Circuit Open Sets when the DSP detects an open from the right front door midrange speaker circuits.
DSP B1A08:01 Speaker #8: General Electrical Failure Sets when the DSP detects the instrument panel center speaker midrange circuits are shorted together.
DSP B1A08:11 Speaker #8: Circuit Short To Ground Sets when the DSP detects a short to ground from the instrument panel center speaker midrange circuits.
DSP B1A08:12 Speaker #8: Circuit Short To Battery Sets when the DSP detects a short to voltage from the instrument panel center speaker midrange circuits.
DSP B1A08:13 Speaker #8: Circuit Open Sets when the DSP detects an open from the instrument panel center speaker midrange circuits.
DSP B1A09:01 Speaker #9: General Electrical Failure Sets when the DSP detects the left rear door woofer speaker circuits are shorted together.
DSP B1A09:11 Speaker #9: Circuit Short To Ground Sets when the DSP detects a short to ground from the left rear door woofer speaker circuits.
DSP B1A09:12 Speaker #9: Circuit Short To Battery Sets when the DSP detects a short to voltage from the left rear door woofer speaker circuits.
DSP B1A09:13 Speaker #9: Circuit Open Sets when the DSP detects an open from the left rear door woofer speaker circuits.
DSP B1A10:01 Speaker #10: General Electrical Failure Sets when the DSP detects the right D-pillar speaker circuits are shorted together.
DSP B1A10:11 Speaker #10: Circuit Short To Ground Sets when the DSP detects a short to ground from the right D-pillar speaker circuits.
DSP B1A10:12 Speaker #10: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right D-pillar speaker circuits.
DSP B1A10:13 Speaker #10: Circuit Open Sets when the DSP detects an open from the right D-pillar speaker circuits.
DSP B1A11:01 Speaker #11: General Electrical Failure Sets when the DSP detects the right rear door midrange speaker circuits are shorted together.
DSP B1A11:11 Speaker #11: Circuit Short To Ground Sets when the DSP detects a short to ground from the right rear door midrange speaker circuits.
DSP B1A11:12 Speaker #11: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right rear door midrange speaker circuits.
DSP B1A11:13 Speaker #11: Circuit Open Sets when the DSP detects an open from the right rear door midrange speaker circuits.
DSP B1A12:01 Speaker #12: General Electrical Failure Sets when the DSP detects the right rear door woofer speaker circuits are shorted together.
DSP B1A12:11 Speaker #12: Circuit Short To Ground Sets when the DSP detects a short to ground from the right rear door woofer speaker circuits.
DSP B1A12:12 Speaker #12: Circuit Short To Battery Sets when the DSP detects a short to voltage from the right rear door woofer speaker circuits.
DSP B1A12:13 Speaker #12: Circuit Open Sets when the DSP detects an open from the right rear door woofer speaker circuits.

Possible Sources

  • Wiring, terminals, or connectors
  • Speaker
  • DSP

NOTE: The rear door speaker and corresponding door tweeter speaker share the same circuitry. If a concern exists with both speakers, retest the system with the tweeter speaker disconnected to determine if the tweeter speaker is the cause of the concern.

G1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to G2

G2 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO GROUND

NOTE: For a rear door tweeter speaker concern, make sure the corresponding door woofer speaker is disconnected.

  • Ignition OFF.
  • Disconnect the suspect speaker.
  • Disconnect DSP C4548A and C4548B .
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   Ground
      C2359-2   Ground
      C2359-3   Ground
      C2359-4   Ground

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C513-1   Ground
      C513-2   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C613-1   Ground
      C613-2   Ground

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   Ground
      C563-3   Ground

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   Ground
      C628-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C751-1   Ground
      C751-2   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C851-1   Ground
      C851-2   Ground

    Click to display connectors

      Left Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C753-1   Ground
      C753-3   Ground

    Click to display connectors

      Right Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C853-1   Ground
      C853-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   Ground
      C702-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C484-1   Ground
      C484-2   Ground
      C484-3   Ground
      C484-4   Ground

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   Ground
      C485-2   Ground
      C485-3   Ground
      C485-4   Ground

    Click to display connectors

      Left Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9063-1   Ground
      C9063-3   Ground

    Click to display connectors

      Right Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9064-1   Ground
      C9064-3   Ground

    Click to display connectors

      Left Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9065-1   Ground
      C9065-3   Ground

    Click to display connectors

      Right Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9066-1   Ground
      C9066-3   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   Ground
      C466-2   Ground
      C466-3   Ground
      C466-4   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to G3
No REPAIR the circuit in question.

G3 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   Ground
      C2359-2   Ground
      C2359-3   Ground
      C2359-4   Ground

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C513-1   Ground
      C513-2   Ground

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C613-1   Ground
      C613-2   Ground

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   Ground
      C563-3   Ground

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   Ground
      C628-3   Ground

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   Ground
      C536-4   Ground

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   Ground
      C642-4   Ground

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C751-1   Ground
      C751-2   Ground

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C851-1   Ground
      C851-2   Ground

    Click to display connectors

      Left Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C753-1   Ground
      C753-3   Ground

    Click to display connectors

      Right Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C853-1   Ground
      C853-3   Ground

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   Ground
      C702-4   Ground

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   Ground
      C802-4   Ground

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C484-1   Ground
      C484-2   Ground
      C484-3   Ground
      C484-4   Ground

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   Ground
      C485-2   Ground
      C485-3   Ground
      C485-4   Ground

    Click to display connectors

      Left Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9063-1   Ground
      C9063-3   Ground

    Click to display connectors

      Right Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9064-1   Ground
      C9064-3   Ground

    Click to display connectors

      Left Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9065-1   Ground
      C9065-3   Ground

    Click to display connectors

      Right Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9066-1   Ground
      C9066-3   Ground

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   Ground
      C466-2   Ground
      C466-3   Ground
      C466-4   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to G4

G4 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR A SHORT TOGETHER
  • Ignition OFF.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   C2359-2
      C2359-3   C2359-4

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C513-1   C513-2

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C613-1   C613-2

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   C563-3

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   C628-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C751-1   C751-2

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C851-1   C851-2

    Click to display connectors

      Left Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C753-1   C753-3

    Click to display connectors

      Right Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C853-1   C853-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C702-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C484-1   C484-2
      C484-3   C484-4

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   C485-2
      C485-3   C485-4

    Click to display connectors

      Left Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9063-1   C9063-3

    Click to display connectors

      Right Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9064-1   C9064-3

    Click to display connectors

      Left Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9065-1   C9065-3

    Click to display connectors

      Right Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9066-1   C9066-3

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C466-2
      C466-3   C466-4

Are the resistances greater than 10,000 ohms?
Yes GO to G5
No REPAIR the circuits.

G5 CHECK THE AUDIO CIRCUITS TO THE SPEAKER FOR AN OPEN
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker Midrange Input


    Positive Lead Measurement / Action Negative Lead
      C2359-1   C4548A-19
      C2359-2   C4548A-9

    Click to display connectors

      Instrument Panel Center Speaker Tweeter Input


    Positive Lead Measurement / Action Negative Lead
      C2359-3   C4548B-20
      C2359-4   C4548B-10

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C513-1   C4548B-15
      C513-2   C4548B-5

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C613-1   C4548B-16
      C613-2   C4548B-6

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   C4548A-12
      C563-3   C4548A-2

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   C4548A-16
      C628-3   C4548A-6

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C4548A-11
      C536-4   C4548A-1

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C4548A-13
      C642-4   C4548A-3

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C751-1   C702-2
      C751-2   C702-3

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C851-1   C802-2
      C851-2   C802-3

    Click to display connectors

      Left Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C753-1   C4548B-13
      C753-3   C4548B-3

    Click to display connectors

      Right Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C853-1   C4548B-11
      C853-3   C4548B-1

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C4548A-18
      C702-4   C4548A-8

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C4548B-12
      C802-4   C4548B-2

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C484-1   C4548A-14
      C484-2   C4548A-4
      C484-3   C4548A-14
      C484-4   C4548A-4

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   C4548A-20
      C485-2   C4548A-10
      C485-3   C4548A-20
      C485-4   C4548A-10

    Click to display connectors

      Left Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9063-1   C4548B-19
      C9063-3   C4548B-9

    Click to display connectors

      Right Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9064-1   C4548B-18
      C9064-3   C4548B-8

    Click to display connectors

      Left Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9065-1   C4548B-17
      C9065-3   C4548B-7

    Click to display connectors

      Right Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9066-1   C4548B-14
      C9066-3   C4548B-4

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C4548A-15
      C466-2   C4548A-5
      C466-3   C4548A-17
      C466-4   C4548A-7

Are the resistances less than 3 ohms?
Yes GO to G6
No REPAIR the circuit in question.

G6 CHECK THE AUDIO SIGNAL TO THE SUSPECT SPEAKER
  • Connect DSP C4548A and C4548B .
  • Ignition ON.
  • Operate the audio system in AM / FM mode.
  • For the suspect speaker, measure:
    Click to display connectors

      Instrument Panel Center Speaker


    Positive Lead Measurement / Action Negative Lead
      C2359-1   C2359-2
      C2359-3   C2359-4

    Click to display connectors

      Left Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C513-1   C513-2

    Click to display connectors

      Right Front Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C613-1   C613-2

    Click to display connectors

      Left Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C563-1   C563-3

    Click to display connectors

      Right Front Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C628-1   C628-3

    Click to display connectors

      Left Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C536-1   C536-4

    Click to display connectors

      Right Front Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C642-1   C642-4

    Click to display connectors

      Left Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C751-1   C751-2

    Click to display connectors

      Right Rear Door Tweeter Speaker


    Positive Lead Measurement / Action Negative Lead
      C851-1   C851-2

    Click to display connectors

      Left Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C753-1   C753-3

    Click to display connectors

      Right Rear Door Midrange Speaker


    Positive Lead Measurement / Action Negative Lead
      C853-1   C853-3

    Click to display connectors

      Left Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C702-1   C702-4

    Click to display connectors

      Right Rear Door Woofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C802-1   C802-4

    Click to display connectors

      Left D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C484-1   C484-2
      C484-3   C484-4

    Click to display connectors

      Right D-Pillar Speaker


    Positive Lead Measurement / Action Negative Lead
      C485-1   C485-2
      C485-3   C485-4

    Click to display connectors

      Left Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9063-1   C9063-3

    Click to display connectors

      Right Front Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9064-1   C9064-3

    Click to display connectors

      Left Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9065-1   C9065-3

    Click to display connectors

      Right Rear Overhead Speaker


    Positive Lead Measurement / Action Negative Lead
      C9066-1   C9066-3

    Click to display connectors

      Subwoofer Speaker


    Positive Lead Measurement / Action Negative Lead
      C466-1   C466-2
      C466-3   C466-4

Is a fluctuating AC voltage present?
Yes INSTALL a new speaker for the one in question.
No GO to G7

G7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H: THE AUDIO/SYNC SYSTEM DOES NOT OPERATE CORRECTLY FROM FCIM (FRONT CONTROLS INTERFACE MODULE)

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Network communication concern
  • ACM concern
  • APIM concern
  • FCIM
H1 VERIFY THE ACM (AUDIO FRONT CONTROL MODULE) , THE APIM (SYNC MODULE) AND THE FCIM (FRONT CONTROLS INTERFACE MODULE) PASS THE NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM , the APIM and the FCIM pass the network test?
Yes GO to H2
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

H2 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to H3

H3 CHECK FOR APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to H4

H4 CHECK FOR FCIM (FRONT CONTROLS INTERFACE MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the FCIM self-test.

Are any Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the DTC Chart in this section.
No GO to H5

H5 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the FCIM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the FCIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIM .
REFER to: Front Controls Interface Module (FCIM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. Address the root cause of any connector or pin issues.

PINPOINT TEST I: ONE OR MORE AUDIO/SYNC STEERING WHEEL CONTROL BUTTON IS INOPERATIVE

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
SCCM B137F:11 Steering Wheel Left Switch Pack: Circuit Short To Ground Sets when the SCCM detects a short to ground from a left steering wheel switch input circuit.
SCCM B137F:13 Steering Wheel Left Switch Pack: Circuit Open Sets when the SCCM detects an open from a left steering wheel switch input circuit.
SCCM B137F:96 Steering Wheel Left Switch Pack: Component Internal Failure Sets when the SCCM detects a fault from a left steering wheel switch input circuit.
SCCM B137F:9E Steering Wheel Left Switch Pack: Stuck On Sets when the SCCM detects a left steering wheel switch is active for more than 2 minutes.
SCCM B1380:11 Steering Wheel Right Switch Pack: Circuit Short To Ground Sets when the SCCM detects a short to ground from a right steering wheel switch input circuit.
SCCM B1380:13 Steering Wheel Right Switch Pack: Circuit Open Sets when the SCCM detects an open from a right steering wheel switch input circuit.
SCCM B1380:96 Steering Wheel Right Switch Pack: Component Internal Failure Sets when the SCCM detects a fault from a right steering wheel switch input circuit.
SCCM B1380:9E Steering Wheel Right Switch Pack: Stuck On Sets when the SCCM detects a right steering wheel switch is active for more than 2 minutes.

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch
  • Clockspring
  • Steering wheel
  • SCCM
I1 CHECK FOR SCCM (STEERING COLUMN CONTROL MODULE) COMMUNICATION
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the SCCM pass the network test?
Yes GO to I2
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

I2 CHECK FOR VOLTAGE TO THE STEERING WHEEL SWITCH
  • Ignition OFF.
  • Remove the driver airbag.
    REFER to: Driver Airbag (501-20B Supplemental Restraint System, Removal and Installation).
  • Disconnect Left Steering Wheel Switches C2998 and C2366 .
  • Disconnect Right Steering Wheel Switches C2999 and C2367 .
  • Ignition ON.
  • Measure:
    Click to display connectors

      Lower Left Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2366-4   C2366-3
      C2366-5   C2366-3

    Click to display connectors

      Lower Right Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2367-4   C2367-3
      C2367-5   C2367-3

    Click to display connectors

      Upper Left Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2999-2   C2999-3

    Click to display connectors

      Upper Right Steering Wheel Switch


    Positive Lead Measurement / Action Negative Lead
      C2998-2   C2998-3

Are the voltages approximately 5 volts?
Yes INSTALL a new steering wheel switch. in question.
REFER to: Steering Wheel Multifunction Switch (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No GO to I3

I3 CHECK THE STEERING WHEEL HARNESS
  • Ignition OFF.
  • Disconnect Clockspring C218B .
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Upper Clockspring C218B, pin 7 (component side) Upper Clockspring C218B, pin 9 (component side)
    Upper Clockspring C218B, pin 8 (component side) Upper Clockspring C218B, pin 9 (component side)
    Upper Clockspring C218B, pin 10 (component side) Upper Clockspring C218B, pin 9 (component side)
    Upper Clockspring C218B, pin 11 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 12 (component side) Upper Clockspring C218B, pin 13 (component side)
    Upper Clockspring C218B, pin 14 (component side) Upper Clockspring C218B, pin 13 (component side)

Are the voltages approximately 5 volts?
Yes REPAIR the steering wheel harness (open or short is present) or INSTALL a new steering wheel as necessary.
REFER to: Steering Wheel (211-04 Steering Column, Removal and Installation).
No GO to I4

I4 CHECK THE CLOCKSPRING FOR AN OPEN
  • Ignition OFF.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Upper Clockspring C218B, pin 7 (component side) Lower clockspring connection, pin 1 (component side)
    Upper Clockspring C218B, pin 8 (component side) Lower clockspring connection, pin 2 (component side)
    Upper Clockspring C218B, pin 9 (component side) Lower clockspring connection, pin 3 (component side)
    Upper Clockspring C218B, pin 10 (component side) Lower clockspring connection, pin 4 (component side)
    Upper Clockspring C218B, pin 11 (component side) Lower clockspring connection, pin 5 (component side)
    Upper Clockspring C218B, pin 12 (component side) Lower clockspring connection, pin 6 (component side)
    Upper Clockspring C218B, pin 13 (component side) Lower clockspring connection, pin 7 (component side)
    Upper Clockspring C218B, pin 14 (component side) Lower clockspring connection, pin 8 (component side)

Are the resistances less than 3 ohms?
Yes GO to I5
No INSTALL a new clockspring.
REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).

I5 CHECK FOR CORRECT SCCM (STEERING COLUMN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the SCCM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the SCCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST J: THE DISPLAY UNIT IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

NOTE: The display unit calibrates after each ignition cycle. Touching the display during an ignition cycle may cause the touchscreen to be inoperative.


Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B108E:01 Display: General Electrical Failure Sets when the APIM detects an error from the display unit.
APIM B108E:02 Display: General Signal Failure Sets when the APIM receives a message from the display unit indicating a fault.
APIM B108E:4A Display: Incorrect Component Installed Sets when the APIM detects an incorrect display unit is installed.
APIM B108E:4B Display: Over Temperature Sets when the APIM receives a message from the display unit reporting an over temperature condition.
APIM B108E:87 Display: Missing Message Sets when the APIM loses communication to the display unit.
APIM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information Sets when the APIM loses communication to the display unit.
APIM U0162:94 Lost Communication With Navigation Display Module: Unexpected Operation Sets when the APIM loses communication to the display unit.

Possible Sources

  • Communication concern
  • Configuration concern
  • LVDS cable
  • Center display screen
  • APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Circuit Tester and LVDS Adapter Kit 420-912 (Rotunda part number NUD420-912) or equivalent tool.

  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Touchscreen/Information and Entertainment Display.
PINPOINT TEST K: SOUND FROM THE SYNC SYSTEM (MUSIC/AUDIBLE PROMPTS) IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch input concern
  • APIM
  • ACM
K1 CHECK THE OPERATION OF THE SPEAKERS USING THE AM (AMPLITUDE MODULATION) / FM (FREQUENCY MODULATION) MODE
  • Ignition ON.
  • Operate the audio system in AM / FM mode.
  • Using the audio system fade and balance features, adjust the audio sound to each of the zones (left front, right front, left rear and right rear).

Do all of the speakers operate?
Yes GO to K2
No REFER to the appropriate symptom in the Speakers and Sound Quality Symptom Chart.

K2 CHECK THE STEERING WHEEL SWITCH PARAMETER IDENTIFICATIONS (PIDS)
  • View the following steering wheel audio/media switch Parameter Identifications (PIDs) while pressing the VOICE button:

    • Access the  SCCM  and monitor the  SW_VOICE  PID


Do the Parameter Identifications (PIDs) correspond correctly?
Yes GO to K3
No GO to Pinpoint Test I

K3 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect ACM C240B .
  • Disconnect APIM C2383A .
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   Ground
      C2383A-4   Ground

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   Ground
      C2383A-24   Ground

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   Ground
      C2383A-26   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to K4
No REPAIR the circuit in question.

K4 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   Ground
      C2383A-4   Ground

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   Ground
      C2383A-24   Ground

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   Ground
      C2383A-26   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to K5

K5 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   C2383A-4
      C2383A-3   C2383A-21
      C2383A-4   C2383A-21

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   C2383A-24
      C2383A-23   C2383A-22
      C2383A-24   C2383A-22

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   C2383A-26
      C2383A-25   C2383A-22
      C2383A-26   C2383A-22

Are the resistances greater than 10,000 ohms?
Yes GO to K6
No REPAIR the circuits in question.

K6 CHECK THE APIM (SYNC MODULE) OUTPUT CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C2383A-3   C240B-19
      C2383A-4   C240B-30

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C2383A-23   C240B-20
      C2383A-24   C240B-31

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C2383A-25   C240B-21
      C2383A-26   C240B-32

Are the resistances less than 3 ohms?
Yes GO to K7
No REPAIR the circuit in question.

K7 CHECK FOR AN AC (ALTERNATING CURRENT) VOLTAGE SIGNAL FROM THE APIM (SYNC MODULE) OUTPUT CIRCUITS
  • Connect APIM C2383A .
  • Ignition ON.
  • For a concern playing music using the SYNC system, play an audio file through the audio system using a SYNC audio source (Bluetooth or USB port).
  • For a concern with the SYNC audible prompts, repeatedly press the VOICE button on the steering wheel switch while measuring the voltage.
  • NOTE: The ACM C240A connector must be connected for this test. Measure:
    Click to display connectors

      Mono/Alert


    Positive Lead Measurement / Action Negative Lead
      C240B-19   C240B-30

    Click to display connectors

      Stereo Left


    Positive Lead Measurement / Action Negative Lead
      C240B-20   C240B-31

    Click to display connectors

      Stereo Right


    Positive Lead Measurement / Action Negative Lead
      C240B-21   C240B-32

Is a fluctuating AC voltage present?
Yes GO to K9
No GO to K8

K8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the APIM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AY
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

K9 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST L: VOICE COMMANDS ARE INOPERATIVE OR OUTGOING AUDIO IS NOT TRANSMITTED DURING A PHONE CALL

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1D79:11 Microphone Input: Circuit Short To Ground Sets when the APIM detects a short to ground from the microphone circuitry.
APIM B1D79:12 Microphone Input: Circuit Short To Battery Sets when the APIM detects a short to voltage from the microphone circuitry.
APIM B1D79:13 Microphone Input: Circuit Open Sets -test when the APIM detects an open from the microphone circuitry.

Possible Sources

  • Wiring, terminals, or connectors
  • Steering wheel switch input concern
  • Microphone
  • APIM
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Voice Recognition.
PINPOINT TEST M: THE SYNC SYSTEM DOES NOT RESPOND TO THE WAKE WORD

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Wake Word setting disabled
  • Incorrect Wake Word used
  • Wake Word not recognized
  • Steering wheel switch input concern
  • Microphone input concern

NOTE: The Wake Word used by the vehicle owner needs to be provided in advance of this test.

M1 CHECK THE OPERATION OF THE STEERING WHEEL VOICE BUTTON
  • Ignition ON.
  • Press the steering wheel voice control button.

Does the SYNC system acknowledge the voice button press?
Yes GO to M2
No GO to Pinpoint Test I

M2 CHECK THE OPERATION OF THE MICROPHONE
  • Turn on the radio and set the source to AM radio.
  • Press the steering wheel voice control button and then state "FM".

Does the radio change to FM?
Yes GO to M3
No GO to Pinpoint Test L

M3 CHECK THE WAKE WORD SETTINGS
  • Access the Ford Voice Settings menu using the touchscreen.

Is the Listen for Wake Word setting enabled?
Yes GO to M4
No ENABLE the Listen for Wake Word setting.

M4 CHECK THE PREFERRED WAKE WORD
  • Access the Preferred Wake Word in the menu settings.
  • Compare the Preferred Wake Word to the wake word provided by the vehicle owner.

Does the Preferred Wake Word match the wake word provided by the vehicle owner?
Yes The system is operating as designed. The Preferred Wake Word needs to be spoken clearly for the SYNC system to recognize the request.
No INFORM the vehicle owner of the Preferred Wake Word selected in the SYNC system.

PINPOINT TEST N: A USB (UNIVERSAL SERIAL BUS) INPUT CONCERN

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B1252:11 USB Port: Circuit Short To Ground Sets when the APIM detects a short to ground from the USB cable.
APIM B1252:13 USB Port: Circuit Open Sets when the APIM detects an open from the USB cable.
APIM B14FD:11 External Media Control Connectivity: Circuit Short To Ground Sets when the APIM detects a short to ground from the USB hub power supply circuit.

Possible Sources

  • USB device
  • Foreign object in the USB port
  • USB cable
  • Media hub
  • APIM
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Connectivity.
PINPOINT TEST O: UNABLE TO PAIR BLUETOOTH DEVICE OR A BLUETOOTH FUNCTIONALITY IS INOPERATIVE

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Incompatible Bluetooth device
  • Bluetooth device
  • APIM
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Connectivity.
PINPOINT TEST P: THE 911 ASSIST OR EMERGENCY ASSISTANCE NOT OPERATIONAL MESSAGE DISPLAYS

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

If a fault message appears indicating the 911 Assist or emergency assistance is not operational, the concern may be caused due to modules not communicating or incorrect APIM programming procedures.

Possible Sources

  • 911 Assist or emergency assistance feature disabled
  • Network communication concern
  • Module configuration concern
  • APIM
P1 VERIFY THE 911 ASSIST OR EMERGENCY ASSISTANCE FEATURE IS ENABLED
  • Ignition ON.
  • Check the 911 Assist or emergency assistance feature setting in the display settings menu.

Is the 911 Assist or emergency assistance setting enabled?
Yes GO to P2
No ENABLE the 911 Assist or emergency assistance feature.

P2 CHECK FOR CONTINUOUS MEMORY DIAGNOSTIC TROUBLE CODES (CMDTCS)
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any Continuous Memory Diagnostic Trouble Codes (CMDTCs) present?
Yes REFER to the appropriate module DTC Chart in the appropriate section.
No GO to P3

P3 CHECK THE VEHICLE SERVICE HISTORY
  • Check the vehicle service history for recent service actions related to the RCM and the APIM .

Is any recent service action noted with the RCM or the APIM noted?
Yes CARRY OUT the PMI procedure using As-Built data as directed by the diagnostic scan tool for the module in question.
No GO to P4

P4 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AY
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Q: ANDROID AUTO™ OR APPLE CARPLAY™ CONCERN

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Refer to the pinpoint test or Owner Literature
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Connectivity.
PINPOINT TEST R: SYNC APPLINK CONCERN

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

  • NOTE: AppLink does not operate if Android Auto™ and Apple CarPlay™ are enabled.

    It is normal for incompatible mobile device platforms, applications, and application versions to be unavailable through SYNC AppLink.
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth only, GO to Pinpoint Test O
    • If the mobile device platform, application, and application version are compatible, and the device is connected through Bluetooth and the USB port, GO to Pinpoint Test N

Possible Sources

  • Refer to the pinpoint test
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
PINPOINT TEST S: THE COMPASS/NAVIGATION IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

ACM Antenna Cable Connections


Item Part Number Description
1 — AM/FM/DAB antenna cable connection
2 — FM2 antenna cable connection
3 — Satellite radio antenna cable connection

APIM Coaxial Cable Connections


Item Part Number Description
1 — GPS antenna connection
2 — Video coaxial cable connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B119F:01 GPS Antenna: General Electrical Failure Sets when the APIM detects a short to ground or short to voltage from the GPS antenna cable.
APIM B119F:13 GPS Antenna: Circuit Open Sets when the APIM detects an open from the GPS antenna cable.

Possible Sources

  • Corrosion
  • Network communication concern
  • Obstructions in the GPS antenna line of sight to the satellite
  • GPS antenna cable
  • Roof mounted antenna
  • ACM
  • APIM

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Tool Kit (refer to the Rotunda catalog for the latest part number) or equivalent tool.

NOTE: Carrying out a Master Reset of the SYNC system prior to diagnostics may resolve some compass/navigation concerns.

S1 CHECK FOR ABS (ANTI-LOCK BRAKE SYSTEM) MODULE NETWORK COMMUNICATION
  • Ignition ON.
  • Using a diagnostic scan tool, clear the APIM Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, carry out the APIM self-test.

Is DTC U0121:00 present?
Yes GO to Pinpoint Test AV
No GO to S2

S2 CHECK THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA RECEPTION
  • Access "APIM Diagnostics" using Bezel Diagnostics.
    REFER to: Bezel Diagnostics (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, General Procedures).
  • Select "Location Information".
  • NOTE: If the value reads less than 3 for "Number of Satellites" or "No GPS Fix" for "Fix Mode", drive the vehicle to an outdoor location free from obstacles such as tall buildings and large trees. Monitor the "Number of Satellites" and "Fix Mode".

Are 3 or more satellites displayed for "Number of Satellites" and is "3D" displayed for "fix Mode"?
Yes GO to S3
No GO to S4

S3 CHECK COMPASS FOR CORRECT OPERATION
  • Operate the vehicle and observe the compass heading.

Does the compass operate correctly?
Yes The system is operating correctly at this time. The concern may have been caused by obstructions in the antenna line of sight to the satellites for an extended period of time.
No GO to S13

S4 CHECK FOR CORRECT APIM (SYNC MODULE) OUTPUT VOLTAGE AT THE GPS (GLOBAL POSITIONING SYSTEM) CABLE CONNECTION
  • Ignition OFF.
  • Disconnect GPS antenna cable at the APIM .
  • Ignition ON.
  • NOTE: Refer to the APIM diagram at the beginning of this test to identify the correct cable connection to the APIM . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    GPS cable core at the APIM (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes For vehicles not equipped with a satellite radio, GO to S9
For vehicles equipped with a satellite radio, GO to S5
No GO to S13

S5 CHECK FOR PROMOTIONAL CHANNEL 1
  • Operate the audio system in satellite radio mode.
  • Select channel 1.

Does the satellite radio system receive channel 1 with normal sound quality?
Yes GO to S8
No GO to S6

S6 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OUTPUT VOLTAGE TO THE SATELLITE RADIO ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the satellite radio antenna cable at the ACM .
  • Ignition ON.
  • NOTE: Refer to the ACM diagram at the beginning of this test to identify the correct cable connection to the APIM . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Satellite radio antenna cable core at the ACM (component side)   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to S7
No GO to S12

S7 CHECK FOR VOLTAGE TO THE GPS (GLOBAL POSITIONING SYSTEM) /SATELLITE RADIO ANTENNA
  • Ignition OFF.
  • Connect the satellite radio antenna cable at the ACM .
  • Disconnect the GPS /satellite radio antenna cable at the roof mounted antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    GPS antenna cable core at the roof mounted antenna, pin 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to S8
No IDENTIFY the cable with the open or short. INSTALL a new GPS /satellite radio cable for the one in question.

S8 ISOLATE THE GPS (GLOBAL POSITIONING SYSTEM) /SATELLITE RADIO ANTENNA SPLITTER CABLE
  • INSTALL a new GPS /satellite radio antenna splitter cable.
  • Operate the vehicle and observe the compass heading.

Does the compass operate correctly?
Yes The repair is complete.
No GO to S10

S9 CHECK FOR VOLTAGE TO THE GPS (GLOBAL POSITIONING SYSTEM) ANTENNA
  • Ignition OFF.
  • Disconnect the GPS antenna cable at the roof mounted antenna.
  • Connect the GPS antenna cable at the APIM .
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    GPS antenna cable core at the roof mounted antenna, pin 1   Ground

Is the voltage between 4.7 and 5.8 volts?
Yes GO to S10
No IDENTIFY the cable with the open or short. INSTALL a new GPS /satellite radio cable for the one in question.

S10 CHECK THE ANTENNA BASE AND MOUNTING SURFACE
  • Remove the roof mounted antenna.
  • Inspect for corrosion on the antenna base and the vehicle mounting surface.

Is antenna base and mounting free of corrosion?
Yes GO to S11
No REPAIR any corrosion on the antenna base and/or vehicle mounting surface. INSTALL the antenna and make sure the correct torque value is used when tightening the fastener.

S11 CHECK THE ROOF MOUNTED ANTENNA
  • Install a new roof mounted antenna.
  • Test the system for normal operation.

Does the compass operate correctly?
Yes The repair is complete.
No GO to S13

S12 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

S13 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AY
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST T: THE LINCOLN WAY FEATURE IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

TCU Antenna Cable Connections


Item Part Number Description
1 — Secondary cellular antenna connection
2 — GPS antenna connection
4 — Primary cellular antenna connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU B1246:11 GSM (Group System for Mobile) Antenna: Circuit Short To Ground Sets when the TCU detects a short to ground from the cellular antenna cable to the satellite antenna.
TCU B1246:13 GSM (Group System for Mobile) Antenna: Circuit Open Sets when the TCU detects an open from the cellular antenna cable to the satellite antenna.

Possible Sources

  • Outdated Lincoln Way mobile application software version/level
  • Poor TCU reception
  • Vehicle owner cellular device
  • Wiring, terminals, or connectors
  • Cellular antenna cable
  • Roof mounted antenna
  • TCU

Visual Inspection and Pre-checks

  • Check OASIS for any of the following applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, discontinue this test and follow the service article instructions
  • Check the following with the vehicle owner:
  • The Lincoln Way mobile application software version level matches the latest software version level available.
  • The device is logged into the Lincoln Way mobile application with the login created from the application or with the Ford Owner account login that corresponds with the vehicle.
  • The vehicle is added to the Lincoln Way mobile application.
  • Lincoln Way has been fully activated by authorizing the vehicle within the Lincoln Way mobile application.
  • The vehicle is within cell phone tower range. Refer to the coverage map at mobile data service provider website.
  • Check the operation of the Lincoln Way mobile applications for correct operation.

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Tool Kit (refer to the Rotunda catalog for the latest part number) or equivalent tool.

NOTE: This pinpoint test presumes the Diagnostic Pre-Checks have been completed.

T1 VERIFY THE TCU (TELEMATIC CONTROL UNIT MODULE) PASSES THE NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?
Yes GO to T2
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

T2 CHECK FOR TCU (TELEMATIC CONTROL UNIT MODULE) DIAGNOSTIC TROUBLE CODES
  • Using a diagnostic tool, carry out the TCU self-test.

Is any DTC present?
Yes For any GSM antenna DTC , GO to T19
For all other Diagnostic Trouble Codes (DTCs), REFER to the DTC Chart in this section.
No GO to T3

T3 VERIFY THE ONBOARD SERIAL NUMBER
  • Ignition ON.
  • Using the SYNC menu settings, view the onboard modem serial number:
    • Select Settings>General>About Sync

Is the onboard Modem Serial Number (ESN) present?
Yes GO to T6
No GO to T4

T4 RESET THE TCU (TELEMATIC CONTROL UNIT MODULE) AND RECHECK FOR THE ONBOARD SERIAL NUMBER
  • Ignition OFF.
  • Remove the TCU fuse.
  • Wait at 5 minutes.
  • Install the TCU fuse.
  • Ignition ON.
  • Using the SYNC menu settings, view the onboard modem serial number:
    • Select Settings>General>About Sync

Is the onboard Modem Serial Number (ESN) present?
Yes GO to T5
No GO to T21

T5 CHECK FOR CORRECT SYSTEM OPERATION
  • Operate the system and determine if the concern is still present.

Is concern is still present?
Yes GO to T6
No The repair is complete.

T6 CHECK FOR UPDATED SOFTWARE
  • Ignition ON.
  • Program the TCU to the latest version level.
    REFER to: Module Programming (418-01A Module Configuration, General Procedures).
  • Check the system and determine if the concern is still present.

Is concern is still present?
Yes GO to T7
No The repair is complete.

T7 CHECK THE TCU (TELEMATIC CONTROL UNIT MODULE) CELL PHONE SIGNAL STRENGTH STATUS
  • Ignition ON.
  • NOTE: Drive the vehicle to an outdoor location with good cellular coverage. Refer to the coverage map at the mobile data service provider website. Monitor the cellular signal strength. Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  CELL_SIGNAL  PID


Is the cellular signal between -85 dBm to -95 dBm?
Yes GO to T8
No GO to T19

T8 VERIFY THE TCU (TELEMATIC CONTROL UNIT MODULE) AUTHORIZATION STATUS
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Wait for Auth" or "Authorized" displayed?
Yes GO to T11
No GO to T9

T9 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS IN FACTORY MODE
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Factory Mode" displayed?
Yes GO to T10
No GO to T12

T10 RECHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS IN FACTORY MODE
  • Carry out the PMI using as-built data.
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Factory Mode" still displayed?
Yes GO to T17
No GO to T11

T11 RESET THE VEHICLE CONNECTIVITY SETTINGS
  • Ignition ON.
  • Using the vehicle touchscreen display, access the SYNC Menu.
    • Select Settings/Lincoln Way Connect/Connectivity Settings
  • Turn the Vehicle Connectivity option off.
  • Ignition OFF.
  • Open and then close the driver door.
  • Lock the vehicle using the button on the IKT or passive key.
  • Wait 30 seconds.
  • Unlock the vehicle using the button on the IKT or passive key.
  • Ignition ON.
  • Using the vehicle touchscreen display, access the SYNC Menu.
    • Select Settings/Lincoln Way Connect/Connectivity Settings
  • Turn the Vehicle Connectivity option on.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes GO to T12
No The repair is complete.

T12 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS UN-PROVISIONED
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Un-Provisioned" displayed?
Yes GO to T21
No GO to T13

T13 CHECK FOR CORRECT VEHICLE OPERATION
  • Verify the Lincoln Way function in question operates correctly on the vehicle, independent of the Lincoln Way mobile application. For example, if the Lincoln Way door lock/unlock function is inoperative, check the operation of the door locks using the door lock control switch or IKT /passive key.

Does the base function in question operate when tested on the vehicle?
Yes GO to T14
No REFER to the appropriate section in the Workshop Manual to diagnose the inoperative function.

T14 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS AUTHORIZED
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Authorized" displayed?
Yes The vehicle is operating correctly. The concern may have been caused by a loss of cellular signal, an outdated Lincoln Way App or synchronization concern.
No GO to T15

T15 CHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS WAITING FOR AUTHORIZATION
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Waiting for Auth" displayed?
Yes GO to T16
No GO to T17

T16 ADD THE VIN (VEHICLE IDENTIFICATION NUMBER) AND THEN RECHECK IF THE TCU (TELEMATIC CONTROL UNIT MODULE) IS AUTHORIZED
  • Add the vehicle VIN to the Lincoln Way App and then authorize the vehicle.
  • Using a diagnostic scan tool, access the following TCU PID :

    • Access the  TCU  and monitor the  AUTHMODE  PID


Is "Authorized" displayed?
Yes The repair is complete.
No GO to T17

T17 CHECK FOR LOST COMMUNICATION DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear all Continuous Memory Diagnostic Trouble Codes (CMDTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait at least 10 seconds.
  • Using a diagnostic scan tool, retrieve all Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any lost communication Diagnostic Trouble Codes (DTCs) set in any audio system module?
Yes REFER to the DTC Chart in this section.
No GO to T18

T18 CARRY OUT A SYNC SYSTEM MASTER RESET

NOTE: Carrying out a Master Reset returns all preference settings to the factory defaults, erases the phone book and call histories, deletes any Bluetooth devices paired with the SYNC system, removes any Wi-Fi network connections (cancelling any system update download or installation in progress), erases the saved destinations (home, favorites, and previous), and deletes any devices paired with the Lincoln Way mobile application.

  • Carry out a master reset from the SYNC Master Reset menu. Refer to the Owner Literature.
  • Uninstall the Lincoln Way mobile application in the phone associated with the vehicle.
  • Re-install the Lincoln Way mobile application in the phone associated with the vehicle.
  • Reauthorize the vehicle from the Lincoln Way application.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes GO to T19
No The repair is complete

T19 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OUTPUT VOLTAGE TO THE PRIMARY CELLULAR ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the primary cellular antenna cable at the TCU .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the TCU . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Primary cellular antenna cable core, pin 4 (component side)   Ground

Does the voltage cycle from 0 to approximately 2.8 volts at regular intervals?
Yes GO to T20
No GO to T21

T20 CHECK FOR VOLTAGE TO THE PRIMARY CELLULAR ANTENNA
  • Ignition OFF.
  • Connect the primary cellular antenna cable at the TCU .
  • Disconnect primary cellular antenna cable at the roof mounted antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Primary cellular antenna cable core at the roof mounted antenna, pin 2   Ground

Does the voltage cycle from 0 to approximately 2.8 volts at regular intervals?
Yes INSTALL a new roof mounted antenna.
TEST the system for normal operation. If the concern is still present, GO to T21
No INSTALL a new cellular antenna cable.

T21 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Inspect the TCU connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the TCU connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST U: THE VEHICLE WI-FI HOTSPOT FEATURE IS INOPERATIVE, EXPERIENCING POOR DATA SPEED OR CANNOT STREAM ANY DATA

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

TCU Antenna Cable Connections


Item Part Number Description
1 — Secondary cellular antenna connection
2 — GPS antenna connection
4 — Primary cellular antenna connection

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU B1D55:11 Antenna #2: Circuit Short To Ground Sets when the TCU detects a short to ground from the TCU antenna cable.
TCU B1D55:13 Antenna #2: Circuit Open Sets when the TCU detects an open from the TCU antenna cable.

Possible Sources

  • Lincoln Way concern
  • Poor TCU reception
  • Wi-Fi connected device
  • Wiring, terminals, or connectors
  • Secondary cellular antenna
  • Secondary cellular antenna cable
  • TCU

NOTE: Prior to carrying out diagnostics, it may be beneficial to determine the cause using the Antenna Tool Kit (refer to the Rotunda catalog for the latest part number) or equivalent tool.

U1 CHECK FOR CORRECT LINCOLN WAY OPERATION
  • Verify the Lincoln Way function operates correctly. For example, check the operation of the door locks using the Lincoln Way feature.

Does the Lincoln Way feature operate?
Yes GO to U2
No GO to Pinpoint Test T

U2 COMPARE THE WI-FI SPEED TO A SECOND DEVICE
  • Park the vehicle away from buildings with a clear view of the sky.
  • Establish a vehicle Wi-Fi Hotspot connection.
  • Use a laptop (or equivalent device), connect to the vehicle Wi-Fi Hotspot.
    • Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.
  • Disconnect the laptop (or equivalent device) from the vehicle Wi-Fi Hotspot
  • Establish a Wi-Fi connection using a cell phone (or equivalent device) using the cellular network.
  • Use the laptop (or equivalent device) to connect to the new Wi-Fi Hotspot.
    • Using the network connection settings or compatible software on the laptop (or equivalent device), document the connection speed.
  • Compare the data speed from the vehicle Wi-Fi Hotspot to the second device supporting a Wi-Fi hotspot.

Is the data speed of the vehicle 50% or less than the second device?
Yes GO to U3
No The system is operating as designed. The concern may have been caused by environmental conditions or obstruction to the signal.

U3 CHECK FOR TCU (TELEMATIC CONTROL UNIT MODULE) OUTPUT VOLTAGE TO THE SECONDARY CELLULAR ANTENNA CABLE
  • Ignition OFF.
  • Disconnect the secondary cellular antenna cable at the TCU .
  • Ignition ON.
  • NOTE: Refer to the diagram at the beginning of this test to identify the correct cable connection to the TCU . Using the female Flex Probe 300-08058 (0.5 mm x 0.5 mm) or equivalent, measure:
    Positive Lead Measurement / Action Negative Lead
    Secondary cellular antenna cable core, pin 1 (component side)   Ground

Does the voltage cycle from 0 to approximately 2.8 volts at regular intervals?
Yes GO to U4
No GO to U5

U4 CHECK FOR VOLTAGE TO THE SECONDARY CELLULAR ANTENNA
  • Ignition OFF.
  • Connect the secondary cellular antenna cable at the TCU .
  • Disconnect secondary cellular antenna cable at the secondary cellular antenna.
  • Ignition ON.
  • Measure:
    Positive Lead Measurement / Action Negative Lead
    Secondary cellular antenna cable core at the antenna   Ground

Does the voltage cycle from 0 to approximately 2.8 volts at regular intervals?
Yes INSTALL a new secondary cellular antenna.
REFER to: Telematics Control Unit (TCU) Module Antenna (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to U5
No INSTALL a new cellular antenna cable.

U5 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Inspect the TCU connector.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the TCU connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST V: ANC (ACTIVE NOISE CONTROL) -RELATED DTC (DIAGNOSTIC TROUBLE CODE) CONCERN

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM B116A:01 Handset Microphone: General Electrical Failure Sets when the ACM detects the left front ANC microphone circuits are shorted together.
ACM B116A:12 Handset Microphone: Circuit Short To Battery Sets when the ACM detects a short to voltage from the left front ANC microphone circuitry.
ACM B116A:14 Handset Microphone: Circuit Short To Ground Or Open Sets when the ACM detects an open or a short to ground from the left front ANC microphone circuitry.
ACM B117A:01 Backup Microphone: General Electrical Failure Sets when the ACM detects the right front ANC microphone circuits are shorted together.
ACM B117A:12 Backup Microphone: Circuit Short To Battery Sets when the ACM detects a short to voltage from the right front ANC microphone circuitry.
ACM B117A:14 Backup Microphone: Circuit Short To Ground Or Open Sets when the ACM detects an open or a short to ground from the right front ANC microphone circuitry.
ACM B13F5:01 Microphone 3: General Electrical Failure Sets when the ACM detects the rear ANC microphone circuits are shorted together.
ACM B13F5:12 Microphone 3: Circuit Short To Battery Sets when the ACM detects a short to voltage from the rear ANC microphone circuitry.
ACM B13F5:14 Microphone 3: Circuit Short To Ground Or Open Sets when the ACM detects an open or a short to ground from the rear ANC microphone circuitry

Possible Sources

  • Wiring, terminals, or connectors
  • ANC microphone
  • ACM

Visual Inspection and Pre-checks

  • Make sure no modifications have been made to the audio system.
  • Inspect the speaker areas for items that may be blocking the speaker sound output.

NOTE: The ANC system is not compatible with aftermarket audio system components and architectures not approved by Ford.

V1 CHECK FOR ACM (AUDIO FRONT CONTROL MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any ACM speaker-related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the speaker Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to V2

V2 CHECK FOR DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) SPEAKER-RELATED DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any DSP speaker-related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the speaker-related Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to V3

V3 INSPECT THE ANC (ACTIVE NOISE CONTROL) MICROPHONES
  • Inspect each ANC microphone and make sure it is correctly installed into the mounting bezel.

Are the ANC microphones installed correctly?
Yes GO to V4
No Correctly INSTALL the ANC microphone in question.
REFER to: Active Noise Control Microphone (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).

V4 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TO GROUND
  • Ignition OFF.
  • Disconnect the suspect ANC microphone. NOTE: Use the Fault Trigger Conditions table at the beginning of this test to identify the suspect microphone.
  • Disconnect ACM C240B .
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9228-1   Ground
      C9228-2   Ground

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9227-1   Ground
      C9227-2   Ground

    Click to display connectors

      Rear ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   Ground
      C9225-2   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to V5
No REPAIR the circuit in question.

V5 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9228-1   Ground
      C9228-2   Ground

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9227-1   Ground
      C9227-2   Ground

    Click to display connectors

      Rear ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   Ground
      C9225-2   Ground

Is any voltage present?
Yes REPAIR the circuit in question.
No GO to V6

V6 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9228-1   C9228-2

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9227-1   C9227-2

    Click to display connectors

      Rear ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   C9225-2

Is the resistance greater than 10,000 ohms?
Yes GO to V7
No REPAIR the circuits.

V7 CHECK THE SUSPECT ANC (ACTIVE NOISE CONTROL) MICROPHONE INPUT CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      Left Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9228-1   C240B-15
      C9228-2   C240B-26

    Click to display connectors

      Right Front ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9227-1   C240B-16
      C9227-2   C240B-27

    Click to display connectors

      Center ANC Microphone


    Positive Lead Measurement / Action Negative Lead
      C9225-1   C240B-17
      C9225-2   C240B-28

Are the resistances less than 3 ohms?
Yes INSTALL a new ANC microphone in question.
REFER to: Active Noise Control Microphone (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation). TEST the system for normal operation. If the concern is still present, GO to V8
No REPAIR the circuit in question.

V8 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST W: THE PASSENGER SEAT VIDEO DISPLAY IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Wiring, terminals, or connectors
  • Family entertainment system coaxial cable
  • Passenger seat video display unit
  • Driver seat video display unit

NOTE: Refer to the rear seat entertainment system owner manual for .

W1 CHECK THE PASSENGER SEAT VIDEO DISPLAY VOLTAGE SUPPLY AND GROUND CIRCUITS FOR AN OPEN
  • Ignition OFF.
  • Disconnect Passenger Seat Video Display connector located with the passenger seat backrest..
  • Ignition ON.
  • Check the power and ground circuits to the passenger seat video display connector by connecting the multi-meter between the power and ground circuits.

Is the voltage greater than 11 volts?
Yes GO to W2
No IDENTIFY and REPAIR the circuit at fault between the passenger seat video display and the in-line connector C3139.

W2 CHECK THE FAMILY ENTERTAINMENT SYSTEM COAXIAL CABLE
  • Check the family entertainment system coaxial cable between the passenger seat video display and the driver seat video display for an open and for a shorted condition.

Is the family entertainment system coaxial cable OK?
Yes INSTALL a new passenger seat video display. TEST the system for normal operation. If the concern is still present, INSTALL a new driver seat video display.
No IDENTIFY the root cause and INSTALL a new family entertainment system coaxial cable in quest

PINPOINT TEST X: THE FAMILY ENTERTAINMENT SYSTEM IS INOPERATIVE OR DOES NOT OPERATE CORRECTLY

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Information and Entertainment System - System Operation and Component Description (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).

Possible Sources

  • Fuse
  • Wiring, terminals, or connectors
  • Driver seat video display unit
  • BJB
  • BCM

Visual Inspection and Pre-checks

  • Check the BJB fuse 128 (7.5A) and make sure it is OK
  • Check the BCM fuse 2 (10A) and make sure it is OK
  • Check the BCM fuse 24 (30A) and make sure it is OK
X1 CHECK FOR BATTERY VOLTAGE TO THE FAMILY ENTERTAINMENT SYSTEM IN-LINE CONNECTOR
  • Ignition OFF.
  • Disconnect In-Line C3139 .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3139-2   Ground

Is the voltage greater than 11 volts?
Yes GO to X3
No VERIFY the BCM fuse 24 (30A) is OK. If OK, GO to X2
If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

X2 CHECK FOR BCM (BODY CONTROL MODULE) BATTERY VOLTAGE SUPPLY CIRCUIT TO THE FAMILY ENTERTAINMENT SYSTEM FOR AN OPEN
  • Disconnect BCM C2280C .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3139-2   C2280C-19

Is the resistance less than 3 ohms?
Yes GO to X9
No REPAIR the circuit.

X3 CHECK FOR ACCESSORY DELAY VOLTAGE TO THE FAMILY ENTERTAINMENT SYSTEM IN-LINE CONNECTOR
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3139-3   Ground

Is the voltage greater than 11 volts?
Yes GO to X4
No VERIFY the BJB fuse 128 (7.5A) and the BCM fuse 2 (10A) are OK. If OK, GO to X6
If not OK, REFER to the Wiring Diagrams manual to identify the possible causes of the circuit short.

X4 CHECK THE FAMILY ENTERTAINMENT SYSTEM GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C3139-3   C3139-1

Is the voltage greater than 11 volts?
Yes GO to X5
No REPAIR the circuit.

X5 CHECK THE FAMILY ENTERTAINMENT SYSTEM CIRCUITS BETWEEN THE IN-LINE CONNECTOR AND THE DRIVER SEAT
  • Check the circuits between the driver seat video display unit and the in-line connector C3139 for opens and shorts.

Is the circuitry between the in-line connector C3139 and the driver seat video display unit OK?
Yes INSTALL a new driver seat video display unit.
No REPAIR the circuit in question.

X6 CHECK ACCESSORY DELAY RELAY OUTPUT CIRCUIT FOR VOLTAGE
  • Ignition OFF.
  • Disconnect BJB C1035B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035B-37   Ground

Is the voltage greater than 11 volts?
Yes GO to X8
No GO to X7

X7 CHECK THE ACCESSORY DELAY RELAY OUTPUT CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect BCM C2280A .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035B-37   C2280A-2

Is the resistance less than 3 ohms?
Yes GO to X9
No REPAIR the circuit.

X8 CHECK THE BJB (BATTERY JUNCTION BOX) FAMILY ENTERTAINMENT SYSTEM RELAY OUTPUT CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect BJB C1035D .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C1035D-8   C3139-3

Is the resistance less than 3 ohms?
Yes INSTALL a new BJB .
No REPAIR the circuit.

X9 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Inspect the BCM connectors.
  • Repair:
    • Corrosion (clean module pins or install new connectors or terminals)
    • Damaged or bent pins (install new terminals or pins)
    • Pushed-out pins (install new pins as necessary)
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Y: U0100 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIM (FRONT CONTROLS INTERFACE MODULE) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM , the DSP , FCIM , the RACM and the TCU communicate with the PCM over the CAN . If messages are missing or not received from the PCM module, features such as the speed compensated volume can be inoperative.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets when the ACM detects network messages are missing from the PCM for more than 5 seconds.
DSP U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets when the DSP detects network messages are missing from the PCM for more than 5 seconds.
FCIM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets when the FCIM detects network messages are missing from the PCM for more than 5 seconds.
RACM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets when the RACM detects network messages are missing from the PCM for more than 5 seconds.
TCU U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets when the TCU detects network messages are missing from the PCM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP
  • FCIM concern
  • RACM concern
  • TCU concern
  • PCM
Y1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to Y2
No The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Y2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the PCM pass the network test?
Yes GO to Y3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

Y3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM , TCU ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to Y4

Y4 CHECK FOR PCM (POWERTRAIN CONTROL MODULE) TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the PCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to Y5

Y5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0100:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP , FCIM , RACM , TCU ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM , TCU ) setting the DTC .

Is DTC U0100:00 still present?
Yes GO to Y6
No The system is operating correctly at this time. The DTC may have set due to high network traffic or an intermittent fault condition.

Y6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the PCM and the module in question ( ACM , DSP , FCIM , RACM , TCU ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to Y7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

Y7 CHECK FOR CORRECT PCM (POWERTRAIN CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the PCM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the PCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern,
   Click here to access Guided Routine (PCM).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST Z: U0121 (ACM (AUDIO FRONT CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM communicates with the ABS module over the CAN . If messages are missing or not received from the ABS module, the GPS feature may not be accurate.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets when the ACM detects network messages are missing from the ABS module for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • ABS module
Z1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to Z2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Z2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the ABS module pass the network test?
Yes GO to Z3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

Z3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to Z4

Z4 CHECK FOR NON-NETWORK ABS (ANTI-LOCK BRAKE SYSTEM) MODULE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ABS module self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to Z5

Z5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0121:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM ) setting the DTC .

Is DTC U0121:00 still present?
Yes GO to Z6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

Z6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the ABS module and the module in question ( ACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to Z7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

Z7 CHECK FOR CORRECT ABS (ANTI-LOCK BRAKE SYSTEM) MODULE OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ABS module connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ABS module connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ABS module.
REFER to: Electric Brake Booster (EBB) (206-09 Anti-Lock Brake System (ABS) and Stability Control, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AA: U0140 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIM (FRONT CONTROLS INTERFACE MODULE) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The ACM , the DSP , the FCIM , RACM and the TCU communicate with the BCM over the CAN . If messages are missing or not received from the BCM , the display screen brightness may not operate not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets when the ACM detects network messages are missing from the BCM for more than 5 seconds.
DSP U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets when the DSP detects network messages are missing from the BCM for more than 5 seconds.
FCIM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets when the FCIM detects network messages are missing from the BCM for more than 5 seconds.
RACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets when the RACM detects network messages are missing from the BCM for more than 5 seconds.
TCU U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets when the TCU detects network messages are missing from the BCM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • FCIM concern
  • RACM concern
  • TCU concern
  • BCM
AA1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AA2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AA2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the BCM pass the network test?
Yes GO to AA3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AA3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM , TCU ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AA4

AA4 CHECK FOR NON-NETWORK BCM (BODY CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the BCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to AA5

AA5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP , FCIM , RACM , TCU ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM , TCU ) setting the DTC .

Is DTC U0140:00 still present?
Yes GO to AA6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AA6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the BCM and the module in question ( ACM , DSP , FCIM , RACM , TCU ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AA7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AA7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the BCM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the BCM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM .
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AB: U0146 (TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The TCU communicates with the GWM over the CAN . If messages are missing or not received from the GWM , Ford Pass features and over the air updates may be inoperative.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU U0146:09 Lost Communication With Serial Data Gateway 'A': Component Failures Sets when the TCU detects network messages are missing from the GWM over the Ethernet for more than 5 seconds.

Possible Sources

  • Network communication concern
  • TCU concern
  • GWM
AB1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AB2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AB2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the GWM pass the network test?
Yes GO to AB3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AB3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (TCU ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AB4

AB4 CHECK FOR GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the GWM self-test.

Are any GWM Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to AB5

AB5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0146:09
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (TCU ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (TCU ) setting the DTC .

Is DTC U0146:09 still present?
Yes GO to AB6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AB6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the GWM and the module in question ( TCU ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AB7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AB7 CHECK FOR CORRECT GWM (GATEWAY MODULE A) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the GWM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the GWM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new GWM .
REFER to: Gateway Module A (GWM) (418-00A Controller Area Network (CAN) Module Communications Network, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AC: U0151 (FCIM (FRONT CONTROLS INTERFACE MODULE) )

Normal Operation and Fault Conditions

The FCIM communicates with the RCM over the CAN . If messages are missing or not received from the RCM , features such as the passenger airbag disable indicator may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
FCIM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information Sets when the FCIM detects network messages are missing from the RCM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • FCIM concern
  • RCM
AC1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AC2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AC2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the RCM pass the network test?
Yes GO to AC3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AC3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (FCIM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AC4

AC4 CHECK FOR NON-NETWORK RCM (RESTRAINTS CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the RCM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to AC5

AC5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0151:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (FCIM ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (FCIM ) setting the DTC .

Is DTC U0151:00 still present?
Yes GO to AC6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AC6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the RCM and the module in question ( FCIM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AC7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AC7 CHECK FOR CORRECT RCM (RESTRAINTS CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RCM connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the RCM connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RCM .
REFER to: Restraints Control Module (RCM) (501-20B Supplemental Restraint System, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AD: U0155 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIM (FRONT CONTROLS INTERFACE MODULE) , RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM , the DSP , FCIM and the RACM communicate with the IPC over the CAN . If messages are missing or not received from the IPC , features such as the display illumination or warning chimes may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets when the ACM detects network messages are missing from the IPC for more than 5 seconds.
DSP U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets when the DSP detects network messages are missing from the IPC for more than 5 seconds.
FCIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets when the FCIM detects network messages are missing from the IPC for more than 5 seconds.
RACM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets when the RACM detects network messages are missing from the IPC for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • FCIM concern
  • RACM concern
  • IPC
AD1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AD2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the IPC pass the network test?
Yes GO to AD3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AD3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AD4

AD4 CHECK FOR NON-NETWORK IPC (INSTRUMENT PANEL CLUSTER) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the IPC self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to AD5

AD5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0155:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP , FCIM , RACM ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM ) setting the DTC .

Is DTC U0155:00 still present?
Yes GO to AD6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AD6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the IPC and the module in question ( ACM , DSP , FCIM , RACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AD7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AD7 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the IPC connector.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the IPC connector. Make sure it seats and latches correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new IPC .
REFER to: Instrument Panel Cluster (IPC) (413-01 Instrumentation, Message Center and Warning Chimes, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AE: U0184 (DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The DSP and the RACM communicate with the ACM over the CAN . If messages are missing or not received from the ACM , the display unit may be blank.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP U0184:00 Lost Communication With Radio: No Sub Type Information Sets when the DSP detects network messages are missing from the ACM for more than 5 seconds.
RACM U0184:00 Lost Communication With Radio: No Sub Type Information Sets when the RACM detects network messages are missing from the ACM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • RACM concern
  • DSP concern
  • ACM
AE1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AE2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AE2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the ACM pass the network test?
Yes GO to AE3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AE3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (DSP , RACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AE4

AE4 CHECK FOR NON-NETWORK ACM (AUDIO FRONT CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the ACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AE5

AE5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0184:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (DSP , RACM ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (DSP , RACM ) setting the DTC .

Is DTC U0184:00 still present?
Yes GO to AE6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AE6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the ACM and the module in question ( DSP , RACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AE7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AE7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AF: U0198 (ACM (AUDIO FRONT CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM communicates with the TCU over the CAN . If messages are missing or not received from the TCU , the Lincoln Way feature may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information Sets when the ACM detects network messages are missing from the TCU for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • TCU
AF1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AF2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AF2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the TCU pass the network test?
Yes GO to AF3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AF3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AF4

AF4 CHECK FOR NON-NETWORK TCU (TELEMATIC CONTROL UNIT MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the TCU self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AF5

AF5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0198:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module (ACM ) in question setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM ) setting the DTC .

Is DTC U0198:00 still present?
Yes GO to AF6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AF6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the TCU and the module in question ( ACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AF7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AF7 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AG: U0198 (RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The RACM communicates with the SCMC (left rear multi-contour seat module) over the CAN . If messages are missing or not received from the SCMC (left rear multi-contour seat module), the left rear multi-contour seat may not operate.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
RACM U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information Sets when the RACM detects network messages are missing from the SCMC (left rear multi-contour seat module) for more than 5 seconds.

Possible Sources

  • Network communication concern
  • RACM concern
  • SCMC (left rear multi-contour seat module)
AG1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AG2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AG2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the SCMC (left rear seat multi-contour module) pass the network test?
Yes GO to AG3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AG3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (RACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AG4

AG4 CHECK FOR NON-NETWORK SCMC (LEFT REAR SEAT MULTI-CONTOUR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SCMC (left rear seat multi-contour module) self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to AG5

AG5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0198:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module (RACM ) in question setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (RACM ) setting the DTC .

Is DTC U0198:00 still present?
Yes GO to AG6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AG6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SCMC (left rear seat multi-contour module) and the module in question (RACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AG7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AG7 CHECK FOR CORRECT SCMC (LEFT REAR SEAT MULTI-CONTOUR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SCMC (left rear seat multi-contour module) connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SCMC (left rear seat multi-contour module) connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMC (left rear seat multi-contour module).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AH: U0211 (RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The RACM communicates with the SCMD (right rear seat multi-contour module) over the CAN . If messages are missing or not received from the SCMD (right rear seat multi-contour module), the right rear seat multi-contour features may not operate.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
RACM U0211:00 Lost Communication With 'Seat Control Module D': No Sub Type Information Sets when the ACM detects network messages are missing from the SCMD (right rear seat multi-contour module) for more than 5 seconds.

Possible Sources

  • Network communication concern
  • RACM concern
  • SCMD (right rear seat multi-contour module)
AH1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AH2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AH2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the SCMD (right rear seat multi-contour module) pass the network test?
Yes GO to AH3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AH3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (RACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AH4

AH4 CHECK FOR NON-NETWORK SCMD (RIGHT REAR SEAT MULTI-CONTOUR MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the SCMD (right rear seat multi-contour module) self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes REFER to the Master DTC Chart.
No GO to AH5

AH5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0211:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module (RACM ) in question setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (RACM ) setting the DTC .

Is DTC U0211:00 still present?
Yes GO to AH6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AH6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the SCMD (right rear seat multi-contour module) and the module in question (RACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AH7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AH7 CHECK FOR CORRECT SCMD (RIGHT REAR SEAT MULTI-CONTOUR MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the SCMD (right rear seat multi-contour module) connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the SCMD (right rear seat multi-contour module) connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new SCMD (right rear seat multi-contour module).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AI: U0238 (ACM (AUDIO FRONT CONTROL MODULE) , RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM and the RACM communicate with the DSP over the CAN . If messages are missing or not received from the DSP , features such as the ANC may not operate correctly.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information Sets when the ACM detects network messages are missing from the DSP for more than 5 seconds.
RACM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information Sets when the RACM detects network messages are missing from the DSP for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • RACM concern
  • DSP
AI1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AI2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AI2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the DSP pass the network test?
Yes GO to AI3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AI3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , RACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AI4

AI4 CHECK FOR NON-NETWORK DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the DSP self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AI5

AI5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0238:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , RACM ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , RACM ) setting the DTC .

Is DTC U0238:00 still present?
Yes GO to AI6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AI6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the audio DSP module and the module in question ( ACM , RACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AI7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AI7 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AJ: U0249 (FCIM (FRONT CONTROLS INTERFACE MODULE) )

Normal Operation and Fault Conditions

The FCIM communicates with the RACM over the CAN . If messages are missing or not received from the RACM , the rear audio controls may be inoperative.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0249:00 Lost Communication With Entertainment Control Module -Rear 'B': No Sub Type Information Sets when the FCIM detects network messages are missing from the RACM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • FCIM concern
  • RACM
AJ1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AJ2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AJ2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the RACM pass the network test?
Yes GO to AJ3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AJ3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (FCIM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AJ4

AJ4 CHECK FOR NON-NETWORK RACM (REAR AUDIO CONTROL MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the RACM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AJ5

AJ5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0249:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (FCIM ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (FCIM ) setting the DTC .

Is DTC U0249:00 still present?
Yes GO to AJ6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AJ6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the RACM and the module in question ( FCIM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AJ7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AJ7 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the RACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RACM .
REFER to: Rear Audio Control Module (RACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AK: U0253 (ACM (AUDIO FRONT CONTROL MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIM (FRONT CONTROLS INTERFACE MODULE) , RACM (REAR AUDIO CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM the DSP , FCIM and the RACM communicate with the APIM over the CAN . If messages are missing or not received from the APIM , the display is blank.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets when the ACM detects network messages are missing from the APIM for more than 5 seconds.
DSP U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets when the DSP detects network messages are missing from the APIM for more than 5 seconds.
FCIM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets when the FCIM detects network messages are missing from the APIM for more than 5 seconds.
RACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Sets when the RACM detects network messages are missing from the APIM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • FCIM concern
  • RACM concern
  • APIM
AK1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AK2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AK2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the APIM pass the network test?
Yes GO to AK3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AK3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AK4

AK4 CHECK FOR NON-NETWORK APIM (SYNC MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the APIM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AK5

AK5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP , FCIM , RACM ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP , FCIM , RACM ) setting the DTC .

Is DTC U0253:00 still present?
Yes GO to AK6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AK6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the APIM and the module in question ( ACM , DSP , FCIM , RACM ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AK7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AK7 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AY
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AL: U0256 (ACM (AUDIO FRONT CONTROL MODULE) )

Normal Operation and Fault Conditions

The ACM and the DSP communicate with the FCIM over the CAN . If messages are missing or not received from the FCIM , the display is blank.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U0256:00 Lost Communication With Front Controls Interface Module 'A': No Sub Type Information Sets when the ACM detects network messages are missing from the FCIM for more than 5 seconds.
DSP U0256:00 Lost Communication With Front Controls Interface Module 'A': No Sub Type Information Sets when the DSP detects network messages are missing from the FCIM for more than 5 seconds.

Possible Sources

  • Network communication concern
  • ACM concern
  • DSP concern
  • APIM
AL1 VERIFY THE CONCERN
  • Ignition ON.
  • Verify an observable symptom present.

Is an observable symptom present?
Yes GO to AL2
No CLEAR the DTC . The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AL2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.

Does the FCIM pass the network test?
Yes GO to AL3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

AL3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP ) setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AL4

AL4 CHECK FOR NON-NETWORK FCIM (FRONT CONTROLS INTERFACE MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the FCIM self-test.

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE these Diagnostic Trouble Codes (DTCs) first. REFER to the Diagnostic Trouble Code (DTC) Chart in this section.
No GO to AL5

AL5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (ACM , DSP ) setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (ACM , DSP ) setting the DTC .

Is DTC U0253:00 still present?
Yes GO to AL6
No The system is operating correctly at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

AL6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: If new modules were installed prior to the DTC being set, the module configuration can be incorrectly set during the PMI or the PMI may not have been carried out.

  • Check the vehicle service history for recent service actions related to the FCIM and the module in question ( ACM , DSP ) setting the DTC . If recent service history is found:
    • verify correct replacement module was installed
      • vehicle parts build list may be used to verify correct part fitment
    • verify the configuration of replacement module was correct
      • re-configure module using as-built data if prior configuration is suspect
    • verify the module was not obtained from a like vehicle and installed into vehicle with concern
      • return the swapped module to source vehicle and obtain new replacement module
  • Operate the system and determine if the observable symptom is still present.

Is the observable symptom still present?
Yes GO to AL7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

AL7 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the FCIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the FCIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIM .
REFER to: Front Controls Interface Module (FCIM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AM: MODULE LOW VOLTAGE CONCERN (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIM (FRONT CONTROLS INTERFACE MODULE) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it falls below a threshold.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets when the ACM detects the supply voltage below 10 volts.
APIM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets when the APIM detects the supply voltage below 10 volts.
DSP U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets when the DSP detects the supply voltage below 10 volts.
FCIM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets when the FCIM detects the supply voltage below 10 volts.
RACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets when the RACM detects the supply voltage below 10 volts.
TCU U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets when the TCU detects the supply voltage below 10 volts.

Possible Sources

  • Previous low battery voltage
  • Wiring, terminals, or connectors
  • Charging system concern
  • ACM
  • APIM
  • DSP
  • FCIM
  • RACM
  • TCU
AM1 RECHECK FOR LOW VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS)
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question setting the low voltage DTC .
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question setting the low voltage DTC .

Is DTC U3003:16 still present?
Yes GO to AM2
No The system is operating correctly at this time. The DTC may have been set due to a previous low battery voltage condition.

AM2 CHECK FOR CHARGING SYSTEM DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the PCM KOEO and KOER self-tests.

Are any voltage-related Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE the charging system concern. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AM3

AM3 CHECK THE BATTERY CONDITION AND STATE OF CHARGE
  • Ignition OFF.
  • Check the battery condition and verify the battery is fully charged.
    REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Is the battery OK and fully charged?
Yes GO to AM4
No DIAGNOSE the battery.
REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

AM4 COMPARE THE SUSPECT MODULE VOLTAGE SUPPLY PID (PARAMETER IDENTIFICATION) TO THE BATTERY VOLTAGE
  • Ignition ON.
  • Measure and record the battery voltage.
  • For the suspect module, monitor the voltage supply PID :
    • ACM :

      Access the  ACM  and monitor the  VPWR (V)  PID

    • APIM :

      Access the  APIM  and monitor the  VPWR (V)  PID

    • DSP :

      Access the  DSP  and monitor the  VPWR (V)  PID

    • FCIM :

      Access the  FCIM  and monitor the  VPWR (V)  PID

    • RACM :

      Access the  RACM  and monitor the  VPWR (V)  PID

    • TCU :

      Access the  TCU  and monitor the  VPWR (V)  PID


Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes For the ACM , GO to AM7
For the APIM , GO to AM8
For the DSP , GO to AM9
For the FCIM , GO to AM10
For the RACM , GO to AM11
For the TCU , GO to AM12
No GO to AM5

AM5 CHECK THE MODULE VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE
  • Ignition OFF.
  • Disconnect the suspect module.
  • Ignition ON.
  • Measure and record the battery voltage.
  • For the suspect module, measure:
    Click to display connectors

      ACM


    Positive Lead Measurement / Action Negative Lead
      C240A-1   Ground

    Click to display connectors

      APIM


    Positive Lead Measurement / Action Negative Lead
      C2383A-1   Ground

    Click to display connectors

      DSP - 14 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4348C-4   Ground
      C4348C-8   Ground

    Click to display connectors

      DSP - 28 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4548C-6   Ground
      C4548C-12   Ground

    Click to display connectors

      FCIM


    Positive Lead Measurement / Action Negative Lead
      C2402A-26   Ground

    Click to display connectors

      RACM


    Positive Lead Measurement / Action Negative Lead
      C3077-6   Ground

    Click to display connectors

      TCU


    Positive Lead Measurement / Action Negative Lead
      C2494A-1   Ground

Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes GO to AM6
No REPAIR the circuit for high resistance.

AM6 CHECK THE SUSPECT MODULE GROUND CIRCUIT FOR HIGH RESISTANCE
  • For the suspect module, measure:
    Click to display connectors

      ACM


    Positive Lead Measurement / Action Negative Lead
      C240A-1   C240A-4

    Click to display connectors

      APIM


    Positive Lead Measurement / Action Negative Lead
      C2383A-1   C2383A-37

    Click to display connectors

      DSP - 14 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4348C-4   C4348C-1
      C4348C-8   C4348C-5

    Click to display connectors

      DSP - 28 Speaker System


    Positive Lead Measurement / Action Negative Lead
      C4548C-6   C4548C-3
      C4548C-12   C4548C-9

    Click to display connectors

      FCIM


    Positive Lead Measurement / Action Negative Lead
      C2402A-26   C2402A-1

    Click to display connectors

      RACM


    Positive Lead Measurement / Action Negative Lead
      C3077-6   C3077-5

    Click to display connectors

      TCU


    Positive Lead Measurement / Action Negative Lead
      C2494A-1   C2494A-9

Is the voltage reading within 0.2 volt of the recorded battery voltage?
Yes For the ACM , GO to AM7
For the APIM , GO to AM8
For the DSP , GO to AM9
For the FCIM , GO to AM10
For the RACM , GO to AM11
For the TCU , GO to AM12
No REPAIR the circuit for high resistance.

AM7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AM8 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AY
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AM9 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AM10 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the FCIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the FCIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIM .
REFER to: Front Controls Interface Module (FCIM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AM11 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the RACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RACM .
REFER to: Rear Audio Control Module (RACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AM12 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AN: MODULE HIGH VOLTAGE CONCERN (ACM (AUDIO FRONT CONTROL MODULE) , APIM (SYNC MODULE) , DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) , FCIM (FRONT CONTROLS INTERFACE MODULE) , RACM (REAR AUDIO CONTROL MODULE) , TCU (TELEMATIC CONTROL UNIT MODULE) )

Normal Operation and Fault Conditions

The modules monitor the supplied voltage and set a DTC if it rises above a threshold.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets when the ACM detects the supply voltage is greater than 16 volts.
APIM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets when the APIM detects the supply voltage is greater than 16 volts.
DSP U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets when the DSP detects the supply voltage is greater than 16 volts.
FCIM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets when the FCIM detects the supply voltage is greater than 16 volts.
RACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets when the RACM detects the supply voltage is greater than 16 volts.
TCU U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in continuous memory and during the on-demand self-test when the TCU detects the supply voltage is greater than 16 volts.

Possible Sources

  • Charging system concern
  • ACM
  • APIM
  • DSP
  • FCIM
  • RACM
  • TCU

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

AN1 CHECK FOR HIGH VOLTAGE DIAGNOSTIC TROUBLE CODES (DTCS) SET IN OTHER MODULES
  • Ignition ON.
  • Using a diagnostic scan tool, retrieve the Continuous Memory Diagnostic Trouble Codes (CMDTCs).

Are any charging or over-voltage related voltage Diagnostic Trouble Codes (DTCs) present in multiple modules?
Yes DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AN2

AN2 CHECK THE BATTERY VOLTAGE WITH THE ENGINE RUNNING
  • Turn off all interior/exterior lights and accessories.
  • Start and run the engine at approximately 2,000 RPM for 3 minutes while monitoring the battery voltage.

Does the battery voltage rise to 15.5 volts or higher?
Yes DIAGNOSE the overcharging condition. REFER to the appropriate Diagnosis and Testing in section 414-00.
No GO to AN3

AN3 RECHECK FOR THE HIGH VOLTAGE DTC (DIAGNOSTIC TROUBLE CODE)
  • Ignition OFF.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the DTC for the suspect module.
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module setting the high voltage DTC .

Is DTC U3003:17 still present?
Yes For the ACM , GO to AN4
For the APIM , GO to AN5
For the DSP , GO to AN6
For the FCIM , GO to AN7
For the RACM , GO to AN8
For the TCU , GO to AN9
No The system is operating correctly at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

AN4 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the ACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the ACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new ACM .
REFER to: Audio Front Control Module (ACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AN5 CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the APIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, GO to Pinpoint Test AY
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AN6 CHECK FOR CORRECT DSP (AUDIO DIGITAL SIGNAL PROCESSING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the DSP connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the DSP connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new DSP .
REFER to: Audio Digital Signal Processing (DSP) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AN7 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the FCIM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the FCIM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new FCIM .
REFER to: Front Controls Interface Module (FCIM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AN8 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the RACM connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the RACM connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new RACM .
REFER to: Rear Audio Control Module (RACM) (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

AN9 CHECK FOR CORRECT TCU (TELEMATIC CONTROL UNIT MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the TCU connectors.
  • Repair:
    • corrosion (install new connectors or terminals - clean module pins)
    • damaged or bent pins - install new terminals pins
    • pushed-out pins - install new pins as necessary
  • Reconnect the TCU connectors. Make sure they seat and latch correctly.
  • Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS for any applicable service articles: TSB , GSB , SSM or FSA . If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST AO: BUS OFF

Refer to Wiring Diagrams Cell 134 for schematic and connector information.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU U0001:09 High Speed CAN Communication Bus: Component Failures The module could not communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC .

Possible Sources

  • Intermittent fault with the CAN
AO1 DIAGNOSE THE INTERMITTENT FAULT

NOTE: The module was unable to communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC .

  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question.
  • Wait at least 10 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question.
  • Verify the integrity of the connectors and wiring for the CAN .

Is the DTC still present?
Yes DIAGNOSE the CAN in question.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).
No The system is operating correctly at this time. VERIFY the integrity of the connectors and wiring for the CAN in question.

PINPOINT TEST AP: INVALID DATA RECEIVED

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DSP U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the DSP receives invalid network data from the BCM .
DSP U0423:00 Invalid Data Received from Instrument Panel Cluster Control Module: No Sub Type Information Sets when the DSP receives invalid network data from the IPC .
FCIM U0401:00 Invalid Data Received from ECM/PCM A: No Sub Type Information Sets when the FCIM receives invalid network data from the PCM .
FCIM U0401:82 Invalid Data Received from ECM/PCM A: Alive/Sequence Counter Incorrect/Not Updated Sets when the FCIM receives invalid network data from the PCM .
FCIM U0422:68 Invalid Data Received From Body Control Module: Event Information Sets when the FCIM receives invalid network data from the BCM .
FCIM U0422:81 Invalid Data Received From Body Control Module: Invalid Serial Data Received Sets when the FCIM receives invalid network data from the BCM .
TCU U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the TCU receives invalid network data from the BCM .
TCU U0554:00 Invalid Data Received From Accessory Protocol Interface Module: No Sub Type Information Sets when the TCU receives invalid network data from the APIM .

Possible Sources

  • Suspect module
AP1 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE MODULE SENDING INVALID DATA
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the self-test for the module in question sending the invalid data.

Are any Diagnostic Trouble Codes (DTCs) present from the module sending the invalid data?
Yes DIAGNOSE the module sending the invalid data. REFER to the appropriate section in the Workshop Manual.
No DIAGNOSE the observable symptom present. REFER to the appropriate Symptom chart in this section.

PINPOINT TEST AQ: MODULE CONFIGURATION FAULT

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U201A:51 Control Module Main Calibration Data: Not Programmed Sets due to an incomplete or incorrect ACM PMI .
ACM U201B:04 Control Module Calibration Data #2: System Internal Failures Sets due to an incomplete or incorrect ACM PMI .
ACM U201B:51 Control Module Calibration Data #2: Not Programmed Sets due to an incomplete or incorrect ACM PMI .
ACM U201B:55 Control Module Calibration Data #2: Not Configured Sets due to an incomplete or incorrect ACM PMI .
ACM U2024:00 Control Module Cal-Config Data: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI .
ACM U2024:57 Control Module Cal-Config Data: Invalid/Incompatible Software Component Sets due to an incomplete or incorrect ACM PMI .
ACM U2026:54 Control Module Cal-Config Data #3: Missing Calibration Sets due to an incomplete or incorrect ACM PMI .
ACM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI .
ACM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect ACM PMI .
DSP U201A:51 Control Module Main Calibration Data: Not Programmed Sets due to an incomplete or incorrect DSP PMI .
DSP U2024:41 Control Module Cal-Config Data: General Checksum Failure Sets due to an incomplete or incorrect DSP PMI .
DSP U2024:48 Control Module Cal-Config Data: Supervision Software Failure Sets due to an incomplete or incorrect DSP PMI .
DSP U2024:51 Control Module Cal-Config Data: Not Programmed Sets due to an incomplete or incorrect DSP PMI .
DSP U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect DSP PMI .
DSP U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect DSP PMI .
FCIM U2024:51 Control Module Cal-Config Data: Not Programmed Sets due to an incomplete or incorrect FCIM PMI .
FCIM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect FCIM PMI .
RACM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect RACM PMI .
RACM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect RACM PMI .
TCU U1A01:09 Communication Link: Component Failures Sets due to an internal fault, incomplete or incorrect TCU PMI .
TCU U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an internal fault, incomplete or incorrect TCU PMI .
TCU U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an internal fault, incomplete or incorrect TCU PMI .
TCU U2101:56 Control Module Configuration Incompatible: Invalid/Incompatible Configuration Sets due to an internal fault, incomplete or incorrect TCU PMI .

Possible Sources

  • Incomplete or incorrect module PMI
AQ1 CARRY OUT THE PMI (PROGRAMMABLE MODULE INSTALLATION) FOR THE SUSPECT MODULE
  • Ignition ON.
  • NOTE: For the TCU , diagnose any antenna GSM antenna DTC prior to diagnosing any configuration DTC . Using a diagnostic scan tool, carry out the PMI procedure for the suspect module as directed by the diagnostic scan tool.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the suspect module.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module.

Is the original DTC still present?
Yes INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.
No The repair is complete.

PINPOINT TEST AR: INTERNAL MODULE FAILURE

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
ACM U3000:41 Control Module: General Checksum Failure Sets when the ACM detects an internal fault.
ACM U3000:42 Control Module: General Memory Failure Sets when the ACM detects an internal fault.
ACM U3000:92 Control Module: Performance Or Incorrect Operation Sets when the ACM detects an internal fault.
ACM U3000:94 Control Module: Unexpected Operation Sets when the ACM detects an internal fault.
ACM U3000:96 Control Module: Component Internal Failure Sets when the ACM detects an internal fault.
DSP U3000:41 Control Module: General Checksum Failure Sets when the DSP detects an internal fault.
DSP U3000:42 Control Module: General Memory Failure Sets when the DSP detects an internal fault.
FCIM B10B8:63 Push Buttons: Circuit/Component Protection Time-Out Sets when the FCIM detects an internal fault with the push buttons.
FCIM U3000:41 Control Module: General Checksum Failure Sets when the FCIM detects an internal fault.
FCIM U3000:49 Control Module: Internal Electronic Failure Sets when the FCIM detects an internal fault.
RACM U0162:00 Lost Communication With Navigation Display Module: No Sub Type Information Sets when the RACM detects an internal fault with the touchscreen display.
RACM U3000:41 Control Module: General Checksum Failure Sets when the RACM detects an internal fault.
RACM U3000:42 Control Module: General Memory Failure Sets when the RACM detects an internal fault.
TCU B116C:04 External SIM Cable/SIM Card: System Internal Failures Sets when the TCU detects an internal fault.
TCU B116C:57 External SIM Cable/SIM Card: Invalid/Incompatible Software Component Sets when the TCU detects an internal fault.
TCU C006A:00 Multi-axis Acceleration Sensor: No Sub Type Information Sets when the TCU detects an internal fault.
TCU U1A01:93 Communication Link: No Operation Sets when the TCU detects an internal fault.
TCU U1A4B:52 Control Module Processor B: Not Activated Sets when the TCU detects an internal fault.
TCU U2200:00 Control Module Configuration Memory Corrupt: No Sub Type Information Sets when the TCU detects an internal fault.
TCU U3000:09 Control Module: Component Failures Sets when the TCU detects an internal fault.
TCU U3000:43 Control Module: Special Memory Failure Sets when the TCU detects an internal fault.
TCU U3000:49 Control Module: Internal Electronic Failure Sets when the TCU detects an internal fault.
TCU U3000:96 Control Module: Component Internal Failure Sets when the TCU detects an internal fault.

Possible Sources

  • Suspect module
AR1 INSTALL A NEW SUSPECT MODULE
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the suspect module.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module.

Is the original DTC still present?
Yes INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.
No The repair is complete.

PINPOINT TEST AS: SOLID STATE DRIVER PROTECTION CONCERN

Normal Operation and Fault Conditions

The FCIM temporarily disables a HVAC control output when an excessive current draw exists (such as a short to ground). The FCIM cannot enable the output until the cause of the short is corrected.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
FCIM U1000:00 Solid State Driver Protection Active -Driver Disabled: No Sub Type Information Sets when the FCIM activates the solid state driver protection strategy.

Possible Sources

  • Fault not previously repaired
  • FCIM
AS1 DIAGNOSE ALL OTHER DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT
  • Diagnose all other Diagnostic Trouble Codes (DTCs) present aside from the solid state protection DTC . Return to this step when complete.
  • Ignition ON.
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the suspect module.
  • Using a diagnostic scan tool, carry out the self-test for the suspect module.

Is the Solid State Protection DTC still present?
Yes INSTALL a new module in question. REFER to the appropriate Removal and Installation procedure in this section.
No The repair is complete.

PINPOINT TEST AT: TCU (TELEMATIC CONTROL UNIT MODULE) DTC (DIAGNOSTIC TROUBLE CODE) U3000:04

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU U3000:04 Control Module: System Internal Failures Sets when the TCU detects an internal fault.

Possible Sources

  • TCU software
  • TCU
AT1 CLEAR THE DTC (DIAGNOSTIC TROUBLE CODE) AND RECHECK THE SYSTEM
  • Ignition ON.
  • Using a diagnostic scan tool, clear the TCU DTC .
  • Wait 10 seconds.
  • Using a diagnostic scan tool, carry out the TCU self-test.

Is the DTC still present?
Yes GO to AT2
No The repair is complete.

AT2 PROGRAM THE TCU (TELEMATIC CONTROL UNIT MODULE)
  • Ignition OFF.
  • Disconnect the battery.
  • Wait 5 minutes.
  • Connect the battery.
  • Ignition ON.
  • Program the TCU with the latest software level.
  • NOTE: Make sure the SYNC system is connected to the internet before retesting. Operate the system and determine if the concern is still present.

Is the concern still present?
Yes CHECK OASIS and follow any instructions for the applicable TSB , GSB , SSM or FSA . INSTALL a new TCU .
REFER to: Telematics Control Unit (TCU) Module (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No The repair is complete.

PINPOINT TEST AU: TCU (TELEMATIC CONTROL UNIT MODULE) DTC (DIAGNOSTIC TROUBLE CODE) U3000:57

Normal Operation and Fault Conditions

Carry out a Master Reset of the SYNC system using the touchscreen display interface.

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
TCU U3000:57 Control Module: Invalid/Incompatible Software Component Sets when the TCU detects an internal configuration concern.

Possible Sources

  • Corrupt module configuration
Diagnostic steps are not provided for this symptom or DTC.  REFER to: Diagnostic Methods (100-00 General Information, Description and Operation).
PINPOINT TEST AV: APIM (SYNC MODULE) LOST COMMUNICATION TO A MODULE

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0100:00 Lost Communication With ECM/PCM 'A': No Sub Type Information Sets when the APIM detects network messages are missing from the PCM for more than 5 seconds.
APIM U0121:00 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets when the APIM detects network messages are missing from the ABS module for more than 5 seconds.
APIM U0122:00 Lost Communication With Vehicle Dynamics Control Module: No Sub Type Information Sets when the APIM detects network messages are missing from the VDM for more than 5 seconds.
APIM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets when the APIM detects network messages are missing from the BCM for more than 5 seconds.
APIM U0151:00 Lost Communication With Restraints Control Module: No Sub Type Information Sets when the APIM detects messages from the RCM are missing for more than 5 seconds.
APIM U0155:00 Lost Communication With Instrument Panel Cluster (IPC) Control Module: No Sub Type Information Sets when the APIM detects network messages are missing from the IPC for more than 5 seconds.
APIM U0159:00 Lost Communication With Parking Assist Control Module 'A': No Sub Type Information Set when the APIM detects parking aid network messages are missing from the IPMA for more than 5 seconds.
APIM U0184:00 Lost Communication With Radio: No Sub Type Information Sets when the APIM detects network messages are missing from the ACM for more than 5 seconds.
APIM U0196:00 Lost Communication With Entertainment Control Module-Rear 'A': No Sub Type Information Sets when the APIM detects network messages are missing from the RACM for more than 5 seconds.
APIM U0198:00 Lost Communication With Telematic Control Module 'A': No Sub Type Information Sets when the APIM detects network messages are missing from the TCU for more than 5 seconds.
APIM U0208:00 Lost Communication With 'Seat Control Module A': No Sub Type Information Sets when the APIM detects network messages are missing from the SCME for more than 5 seconds.
APIM U0209:00 Lost Communication With 'Seat Control Module B': No Sub Type Information Sets when the APIM detects network messages are missing from the SCMH for more than 5 seconds.
APIM U020C:00 Lost Communication with Wireless Accessory Charging Module 'A': No Sub Type Information Sets when the APIM detects network messages are missing from the WACM for more than 5 seconds.
APIM U0212:00 Lost Communication With Steering Column Control Module: No Sub Type Information Sets when the APIM detects network messages are missing from the SCCM for more than 5 seconds.
APIM U0214:00 Lost Communication With Remote Function Actuation Module: No Sub Type Information Sets when the APIM detects network messages are missing from the RFA module for more than 5 seconds.
APIM U0232:00 Lost Communication With Side Obstacle Detection Control Module 'A': No Sub Type Information Sets when the APIM detects left cross traffic alert network messages are missing from the IPMA for more than 5 seconds.
APIM U0233:00 Lost Communication With Side Obstacle Detection Control Module 'B': No Sub Type Information Sets when the APIM detects right cross traffic alert network messages are missing from the IPMA for more than 5 seconds when the ignition is on.
APIM U0238:00 Lost Communication With Digital Audio Control Module 'D': No Sub Type Information Sets when the APIM detects network messages are missing from the DSP for more than 5 seconds.
APIM U023B:00 Lost Communication With Image Processing Module B: No Sub Type Information Sets when the APIM detects image processing data network messages are missing from the IPMA for more than 5 seconds when the ignition is on.
APIM U024B:00 Lost Communication with Seat Control Module 'G': No Sub Type Information Sets when the APIM detects network messages are missing from the SCMG for more than 5 seconds.
APIM U024C:00 Lost Communication with Seat Control Module 'H': No Sub Type Information Sets when the APIM detects network messages are missing from the SCMH for more than 5 seconds.
APIM U0256:00 Lost Communication With Front Controls Interface Module 'A': No Sub Type Information Sets when the APIM detects network messages are missing from the FCIM for more than 5 seconds.
APIM U3000:88 Control Module: Bus Off The module could not communicate on the network at a point in time. The fault is not currently present since the module had to communicate with the diagnostic scan tool to report this DTC .

Possible Sources

  • Communication from sending module concern
  • Intermittent CAN failure concern
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Touchscreen/Information and Entertainment Display.
PINPOINT TEST AW: APIM (SYNC MODULE) INVALID DATA RECEIVED

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U0415:00 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': No Sub Type Information Sets when the APIM receives invalid network data from the ABS module.
APIM U0415:94 Invalid Data Received from Anti-Lock Brake System (ABS) Control Module 'A': Unexpected Operation Sets when the APIM receives invalid network data from the ABS module.
APIM U0416:00 Invalid Data Received From Vehicle Dynamics Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the VDM .
APIM U0422:00 Invalid Data Received From Body Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the BCM .
APIM U0452:00 Invalid Data Received From Restraints Control Module: No Sub Type Information Sets when the APIM receives invalid network data from the RCM .

Possible Sources

  • Corrupt or invalid data received from sending module
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Touchscreen/Information and Entertainment Display.
PINPOINT TEST AX: APIM (SYNC MODULE) CONFIGURATION

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM B156D:54 TCU Customer Connectivity Settings Synchronization With HMI: Missing Calibration Sets due to an incomplete or incorrect APIM PMI .
APIM B156D:89 TCU Customer Connectivity Settings Synchronization With HMI: Data Transfer Failure Sets due to an incomplete or incorrect APIM PMI .
APIM B15EB:57 Consumer Apps: Invalid/Incompatible Software Component Sets due to an incomplete or incorrect APIM PMI .
APIM U0121:55 Lost Communication With Anti-Lock Brake System (ABS) Control Module 'A': Not Configured Sets due to an incomplete or incorrect APIM PMI .
APIM U2017:45 Control Module Software #2: Program Memory Failure Sets due to an incomplete or incorrect APIM PMI .
APIM U2017:51 Control Module Software #2: Not Programmed Sets due to an incomplete or incorrect APIM PMI .
APIM U2017:52 Control Module Software #2: Not Activated Sets due to an incomplete or incorrect APIM PMI .
APIM U2017:54 Control Module Software #2: Missing Calibration Sets due to an incomplete or incorrect APIM PMI .
APIM U2100:00 Initial Configuration Not Complete: No Sub Type Information Sets due to an incomplete or incorrect APIM PMI .
APIM U2101:00 Control Module Configuration Incompatible: No Sub Type Information Sets due to an incomplete or incorrect APIM PMI .
APIM U3000:57 Control Module: Invalid/Incompatible Software Component Sets due to an incomplete or incorrect APIM PMI .

Possible Sources

  • Corrupt module configuration
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Touchscreen/Information and Entertainment Display.
PINPOINT TEST AY: APIM (SYNC MODULE) INTERNAL MODULE CONCERN

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
APIM U3000:04 Control Module: System Internal Failures Sets when the APIM detects an internal fault.
APIM U3000:05 Control Module: System Programming Failures Sets when the APIM detects an internal fault.
APIM U3000:09 Control Module: Component Failures Sets when the APIM detects an internal fault.
APIM U3000:41 Control Module: General Checksum Failure Sets when the APIM detects an internal fault.
APIM U3000:43 Control Module: Special Memory Failure Sets when the APIM detects an internal fault.

Possible Sources

  • Corrupt module firmware
  COMPLETE THE FDRS GUIDED ROUTINE
  • NOTE: This procedure must be completed using FDRS. Do not clear DTCs until the FDRS procedure has completed.
      To complete the diagnosis, navigate to the FDRS Guided Routine tab and carry out the procedure SYNC Touchscreen/Information and Entertainment Display.

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