Lincoln Navigator Manuals

Lincoln Navigator: Accessory Charging / Wireless Accessory Charging Module (WACM). Diagnosis and Testing

Lincoln Navigator 2018-2025 Workshop Manual / Battery and Charging System / Accessory Charging / Wireless Accessory Charging Module (WACM). 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
BCM B1554:11 Wireless Accessory Charger Enable/Disable: Circuit Short To Ground GO to Pinpoint Test A
BCM B1554:13 Wireless Accessory Charger Enable/Disable: Circuit Open GO to Pinpoint Test A
WACM P150E:96 Electronic Control Module Cooling Fan Circuit: Component Internal Failure GO to Pinpoint Test B
WACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information GO to Pinpoint Test E
WACM U0184:00 Lost Communication With Radio: No Sub Type Information GO to Pinpoint Test F
WACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information GO to Pinpoint Test G
WACM U201A:51 Control Module Main Calibration Data: Not Programmed GO to Pinpoint Test H
WACM U2100:00 Initial Configuration Not Complete: No Sub Type Information GO to Pinpoint Test H
WACM U3000:41 Control Module: General Checksum Failure GO to Pinpoint Test C
WACM U3000:42 Control Module: General Memory Failure GO to Pinpoint Test C
WACM U3000:49 Control Module: Internal Electronic Failure GO to Pinpoint Test C
WACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold GO to Pinpoint Test D
WACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold GO to Pinpoint Test D

Symptom Chart(s)

Symptom Chart: Wireless Accessory Charging Module (WACM)

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).


  Symptom Chart


Condition Actions
A module does not communicate with 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 WACM is inoperative   GO to Pinpoint Test A
The WACM charging is intermittent/degraded performance   GO to Pinpoint Test A
The WACM cooling fan emits abnormally loud noise   GO to Pinpoint Test B

Pinpoint Test(s)


PINPOINT TEST A: B1554:11, B1554:13

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1554:11 Wireless Accessory Charger Enable/Disable: Circuit Short To Ground This DTC sets when the module senses lower than expected voltage on the WACM hardwired status circuit, indicating a short to ground. The WACM cannot be controlled off during an interior key fob search and may interfere with the key search.
BCM B1554:13 Wireless Accessory Charger Enable/Disable: Circuit Open This DTC sets when the module senses no voltage on the WACM hardwired status circuit, indicating an open circuit. The WACM can not be controlled off during an interior key fob search and may interfere with the key search.

Possible Sources

  • Wiring, terminals or connectors
  • WACM

Visual Inspection and Pre-checks

  • Recheck wireless charging process with a known good smart phone that contains the built-in wireless charging technology.
  • Recheck wireless charging process with device case removed.
  • With a known compatible cell phone resting on the WACM pad, monitor the center display for the WACM charging icon (battery icon with a lightning bolt inside) after a cell phone has been laid on the charging pad and started a wireless charging session.
  • Inspect for objects or debris on wireless charging pad.
  • Inspect for loose or corroded WACM or BCM connections.
  • Inspect for damage to harness between BCM and WACM .
  • Check Fuse F3 7.5A BCM (Expedition)
  • Check Fuse F9 5A BCM (Navigator)

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

A1 CHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION
  • Accessory ON.
  • Engine Running
  • Place a known compliant cell phone onto the WACM charging pad.
  • Observe for the wireless charging icon (battery symbol with a lightning bolt inside) in the status bar of the Center Display.

Does the charging pad operate?
Yes REFER to Owners Literature for proper use and operation.
No GO to A2

A2 CHECK THE COMMUNICATION NETWORK
  • Ignition ON.
  • Using a diagnostic scan tool, carry out the network test.

Does the WACM pass the network test?
Yes GO to A3
No DIAGNOSE the WACM does not communicate with 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).

A3 CHECK THE BCM (BODY CONTROL MODULE) WACM (WIRELESS ACCESSORY CHARGING MODULE) STATUS CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280B .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-11   Ground

Is there any voltage present?
Yes REPAIR the circuit.
No GO to A4

A4 CHECK THE BCM (BODY CONTROL MODULE) WACM (WIRELESS ACCESSORY CHARGING MODULE) STATUS CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-11   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to A5
No REPAIR the circuit.

A5 CHECK THE BCM (BODY CONTROL MODULE) WACM (WIRELESS ACCESSORY CHARGING MODULE) STATUS CIRCUIT FOR AN OPEN
  • Disconnect BCM C2280C .
  • Disconnect BCM C2280B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C390-3   C2280B-11

Are the resistances less than 3 ohms?
Yes GO to A6
No REPAIR the circuit.

A6 CHECK THE BCM (BODY CONTROL MODULE) WACM (WIRELESS ACCESSORY CHARGING MODULE) STATUS CIRCUIT FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-11   C2280C-29

Are the resistances greater than 10,000 ohms?
Yes GO to A7
No REPAIR the circuit.

A7 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the BCM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect all 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
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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST B: P150E:96

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
WACM P150E:96 Electronic Control Module Cooling Fan Circuit: Component Internal Failure This DTC sets due to a fault within the electronic control module cooling fan circuit of the WACM .

Possible Sources

  • WACM

Visual Inspection and Pre-checks

  • Inspect the WACM charging pad area.
  • Inspect the WACM cooling fan portion of the charging pad area.
B1 VERIFY THE CONCERN

NOTE: Any customer complaints concerning slow device charging and WACM cooling fan abnormally loud operation.

  • Operate the WACM charging pad with a known compliant Qi wireless device.

Is there a concern with charging performance or an abnormally loud WACM cooling fan?
Yes GO to B2
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.

B2 CHECK FOR DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, clear the Diagnostic trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 20 seconds.
  • Using a diagnostic scan tool, perform the WACM self-test.

Did the DTC return?
Yes INSTALL a new suspect module.
For the WACM ,
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
No The system is operating correctly at this time. The DTC may have been set due to an intermittent fault condition.

PINPOINT TEST C: U3000:41, U3000:42, U3000:49

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
WACM U3000:41 Control Module: General Checksum Failure This DTC sets due to module checksum failure.
WACM U3000:42 Control Module: General Memory Failure This DTC sets due to general memory failure.
WACM U3000:49 Control Module: Internal Electronic Failure This DTC sets a WACM internal fault.

Possible Sources

  • Suspect module
  • Module checksum or memory failure
C1 RECHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) DTCS (DIAGNOSTIC TROUBLE CODES)

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

  • Using a diagnostic scan tool, clear the Diagnostic trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 20 seconds.
  • Using a diagnostic scan tool, perform the WACM self-test.

Is U3000:41, U3000:42 or U3000:49 present?
Yes For DTC U3000:41, U3000:42, PERFORM the PMI procedure on the WACM . REFER to: Module Programming (418-01A Module Configuration, General Procedures). If DTC returns, install a new WACM .
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation). For DTC U3000:49, INSTALL a new WACM . REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
No The repair is complete.

PINPOINT TEST D: U3003:16, U3003:17

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
WACM U3003:16 Battery Voltage: Circuit Voltage Below Threshold Sets in the WACM if it detects battery voltage below 9 volts on the voltage supply circuit for 20 seconds or longer.
WACM U3003:17 Battery Voltage: Circuit Voltage Above Threshold Sets in the WACM if it detects battery voltage above 16 volts on the voltage supply circuit for 20 seconds or longer.

Possible Sources

  • Fuses
  • Wiring, terminals or connectors
  • Charging system concern
  • Battery
  • WACM

NOTE: DTC U3003:17 may be stored in the module memory due to past battery charging or vehicle jump starting events.

Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may cause damage to the connector.
D1 CARRY OUT THE WACM (WIRELESS ACCESSORY CHARGING MODULE) SELF-TEST
  • Ignition ON.
  • Engine OFF
  • Using a diagnostic scan tool, clear the WACM Diagnostic Trouble Codes (DTCs).
  • Wait 30 seconds.
  • Using a diagnostic scan tool, perform the WACM self-test.
  • Start the engine.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, perform the WACM self-test.

Is DTC U3003:16 or U3003:17 still present?
Yes GO to D2
No The system is operating normally at this time. The DTC may have been set previously during battery charging or while jump starting the vehicle.

D2 : CHECK THE BATTERY CONDITION AND STATE OF CHARGE
  • Carry out the Battery Condition Test diagnostic routine.
    REFER to: Battery (414-01 Battery, Mounting and Cables, Diagnosis and Testing).

Did the battery pass the condition test?
Yes GO to D3
No INSTALL a new battery.
REFER to: Battery (414-01 Battery, Mounting and Cables, Removal and Installation).

D3 CHECK THE CHARGING SYSTEM VOLTAGE

NOTE: Do not allow the engine Revolutions Per Minute (RPM) to exceed 2,000 Revolutions Per Minute (RPM) while carrying out this step or the generator may self-excite, resulting in default charging system output voltage. If engine Revolutions Per Minute (RPM) exceeds 2,000 Revolutions Per Minute (RPM), shut the vehicle off and restart the engine before carrying out this step.

  • Start the engine.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead

Does the battery voltage rise above 16 volts or higher?
Yes For DTC U3003:16, GO to D4
For DTC U3003:17, GO to D6
No DIAGNOSE the charging system.
REFER to: Charging System - 3.5L EcoBoost (272kW/370PS) (414-00 Charging System - General Information, Diagnosis and Testing).

D4 CHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) VOLTAGE SUPPLY CIRCUIT FOR HIGH RESISTANCE
  • Turn off all interior/exterior lights and accessories.
  • Ignition OFF.
  • Disconnect WACM C390 .
  • Ignition ON.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C390-1   Ground

Does the battery voltage rise above 16 volts or higher?
Yes REPAIR the circuit.
No GO to D5

D5 CHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) GROUND CIRCUIT FOR HIGH RESISTANCE
  • Ignition OFF.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C390-5   Ground

Is the resistance less than 3 ohms?
Yes GO to D6
No REPAIR the circuit.

D6 CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all WACM electrical connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect all WACM 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 WACM .
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST E: U0140:00

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
WACM U0140:00 Lost Communication With Body Control Module: No Sub Type Information Sets in continuous memory in the WACM if data messages received from the BCM are missing for 5 seconds or longer.

Possible Sources

  • Wiring, terminals or connectors
  • WACM
  • BCM

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

E1 VERIFY THE CUSTOMER CONCERN
  • Ignition ON.
  • Verify there is an observable symptom present.

Is there an observable symptom present?
Yes GO to E2
No CLEAR the DTC . The system is operating normally at this time. The DTC may have been set due to high network traffic or an intermittent fault condition.

E2 CHECK THE NETWORK COMMUNICATION
  • Ignition ON.
  • Using a diagnostic scan tool, perform the network test.

Does the BCM pass the network test?
Yes GO to E3
No DIAGNOSE the WACM does not communicate with 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).

E3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self test for the module in question WACM setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the appropriate DTC Chart in this section.
No GO to E4

E4 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: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).
No GO to E5

E5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0140:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question [WACM ] setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question [WACM ] setting the DTC .

Is DTC U0140:00 still present?
Yes GO to E6
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.

E6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: NOTE: If new modules were installed prior to the DTC being set, the module configuration may 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 [ WACM ]. 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 E7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

E7 CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the WACM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Connect all WACM 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 WACM .
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
.
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST F: U0184:00

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
WACM Continuous U0184:00 Lost Communication With Radio: No Sub Type Information Set by the WACM when network messages are missing from the ACM for more than 5 seconds with the ignition in RUN.

Possible Sources

  • ACM
  • WACM false DTC
F1 VERIFY THE CONCERN
  • Verify there is an observable symptom present.

Is an observable symptom present?
Yes GO to F2
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.

F2 CHECK THE NETWORK COMMUNICATION
  • Using a diagnostic scan tool, carry out the network test.
  • Ignition ON.

Does the ACM pass the network test?
Yes GO to F3
No
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

F3 CHECK FOR NON-NETWORK DIAGNOSTIC TROUBLE CODES (DTCS)
  • Using a diagnostic scan tool, carry out the self-test for the module in question (WACM setting the DTC .

Are any non-network Diagnostic Trouble Codes (DTCs) present?
Yes DIAGNOSE all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to F4

F4 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 all non-network Diagnostic Trouble Codes (DTCs) first. REFER to the DTC Chart in this section.
No GO to F5

F5 RECHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0184:00
  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs) for the module in question (WACM setting the DTC .
  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, carry out the self-test for the module in question (WACM setting the DTC .

Is DTC U0184:00 still present?
Yes GO to F6
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.

F6 CHECK FOR OTHER CAUSES OF NETWORK COMMUNICATION CONCERN

NOTE: NOTE: If new modules were installed prior to the DTC being set, the module configuration may 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 [ WACM ]. 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 F7
No The system is operating correctly at this time. The concern may have been due to incorrect parts replacement procedures or incorrect module configuration.

F7 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the ACM connector.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Reconnect all 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 Is there still a concern with abnormal noise of the WACM when using AM radio, REFER to GO to F8
If there is not a concern with the abnormal noise of the WACM when using AM radio, 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 a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

F8 VERIFY IF THERE IS STILL ABNORMAL NOISE ON AM (AMPLITUDE MODULATION) RADIO WHEN USING WIRELESS CHARGER
  • Verify there is abnormal noise when usingAM radio with wireless charger.

Is an observable symptom still present?
Yes GO to F9
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

F9 CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all the WACM connectors.
  • Repair:
    • corrosion (install new connector or terminals – clean module pins)
    • damaged or bent pins – install new terminals/pins
    • pushed-out pins – install new pins as necessary
  • Connect all WACM 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
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
.
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G: U0253:00

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
WACM U0253:00 Lost Communication With Accessory Protocol Interface Module: No Sub Type Information Set by the WACM when network messages are missing from the APIM for more than 5 seconds with the ignition in RUN.

Possible Sources

  • Vehicle communication bus
  • APIM
  • WACM
G1 VERIFY THE CUSTOMER'S CONCERN
  • Ignition OFF.
  • Press power button on infotainment (push volume button or dedicated power button on infotainment).
  • Place a compatible device on WACM charging pad.
  • Verify if device begins charging or not observe for the wireless charging icon (battery symbol with a lightning bolt inside) in the status bar.

Does device begin charging?
Yes 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.
No GO to G2

G2 CHECK THE COMMUNICATION NETWORK
  • Using a diagnostic scan tool, carry out the network test.

Does the APIM pass the network test?
Yes GO to G3
No DIAGNOSE the APIM does not communicate with 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).

G3 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE APIM (SYNC MODULE) SELF-TEST
  • Using a diagnostic scan tool, carry out the APIM  self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the appropriate procedure in Group 415.
No GO to G4

G4  RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE WACM (WIRELESS ACCESSORY CHARGING MODULE) SELF-TEST
  • Using a diagnostic scan tool, carry out the WACM self-test.

Is DTC  U3003:16 or  DTC  U3003:17 recorded?
Yes GO to Pinpoint Test D
No GO to G5

G5 RECHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) DIAGNOSTIC TROUBLE CODES (DTCS)

NOTE:  If new modules were installed prior to the Diagnostic Trouble Code (DTC) being set, the module configuration can be incorrectly set during the Programmable Module Installation (PMI) or the Programmable Module Installation (PMI) may not have been carried out.

  • Using a diagnostic scan tool, clear the Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, carry out the WACM self-test.

Is DTC U0253:00 still present?
Yes GO to G6
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.

G6 CHECK FOR DTC (DIAGNOSTIC TROUBLE CODE) U0253:00 SET IN OTHER MODULES
  • Using a diagnostic scan tool, clear all Diagnostic Trouble Codes (DTCs).
  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds.
  • Using a diagnostic scan tool, retrieve all continuos memory Diagnostic Trouble Codes (DTCs).

Is DTC U0253:00 set in other modules on the network?
Yes GO to G7
No GO to G8

G7  CHECK FOR CORRECT APIM (SYNC MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect the APIM (if not previously disconnected)..
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals or pins
    • pushed-out pins - install new pins as necessary
    • Connect APIM electrical 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 APIM .
REFER to: SYNC Module [APIM] (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
(if equipped) or REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
(if equipped)
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

G8  CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect theWACM (if not previously disconnected)..
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals or pins
    • pushed-out pins - install new pins as necessary
    • Connect WACM electrical 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 WACM .
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
No The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H: U2100:00, U201A:51

Refer to Wiring Diagrams Cell 44 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Wireless Accessory Charging Module (WACM) - System Operation and Component Description (414-06 Accessory Charging, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
WACM U2100:00 Initial Configuration Not Complete: No Sub Type Information This DTC  sets due to incomplete or improper PMI  procedures.
WACM U201A:51 Control Module Main Calibration Data: Not Programmed This DTC  sets due to incomplete or improper PMI  procedures.

Possible Sources

  • Vehicle communication bus
  • Incomplete or improper PMI procedures
  • WACM
H1 CHECK FOR RECENT SERVICE ACTIONS RELATED TO THE WACM (WIRELESS ACCESSORY CHARGING MODULE)
  • CHECK vehicle service history for recent service actions related to the WACM .

Has there been recent service issues against the WACM ?
Yes GO to H2
No INSTALL a new WACM to correct the failure to retain configuration data.
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
.

H2  RECHECK THE WACM (WIRELESS ACCESSORY CHARGING MODULE) DTCS (DIAGNOSTIC TROUBLE CODES)

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

NOTE: CHECK vehicle service history for recent service actions related to this module.

  • Ignition OFF.
  • Ignition ON.
  • Wait 30 seconds
  • Using a diagnostic scan tool, perform the WACM self-test.

Is U2100:00 or U201A:51 present?
Yes PERFORM the PMI procedure on the WACM .
REFER to: Module Programming (418-01A Module Configuration, General Procedures). For replacement, GO to H3
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.

H3  CHECK FOR CORRECT WACM (WIRELESS ACCESSORY CHARGING MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect theWACM (if not previously disconnected)..
  • Repair:
    • corrosion (install new connector or terminal - clean module pins)
    • damaged or bent pins - install new terminals or pins
    • pushed-out pins - install new pins as necessary
    • Connect WACM electrical 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 Is DTC U2100:00 or U201A:51 still present, 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 WACM .
REFER to: Wireless Accessory Charging Module (WACM) (414-06 Accessory Charging, Removal and Installation).
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.


    Wireless Accessory Charging Module (WACM) - System Operation and Component Description. Description and Operation

    S..

    Wireless Accessory Charging Module (WACM). Removal and Installation

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