Lincoln Navigator Manuals

Lincoln Navigator: Instrument Panel and Interior Switches Illumination / Instrument Panel and Interior Switches Illumination. Diagnosis and Testing

Lincoln Navigator 2018-2025 Workshop Manual / Instrumentation and Warning Systems / Instrument Panel and Interior Switches Illumination / Instrument Panel and Interior Switches Illumination. 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 B1314:11 White Lighting (Reflective Controls) Illumination Output: Circuit Short To Ground GO to Pinpoint Test H
BCM B1314:15 White Lighting (Reflective Controls) Illumination Output: Circuit Short To Battery Or Open GO to Pinpoint Test I
BCM B1315:11 Backlighting (Non Reflective Controls) Illumination Output: Circuit Short To Ground GO to Pinpoint Test C
BCM B1315:15 Backlighting (Non Reflective Controls) Illumination Output: Circuit Short To Battery Or Open GO to Pinpoint Test C
DDM U2010:00 Switch Illumination: No Sub Type Information GO to Pinpoint Test F
PDM U2010:00 Switch Illumination: No Sub Type Information GO to Pinpoint Test G

Global Customer Symptom Code (GCSC) 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).


Symptom Action
Comfort & Entertainment > Audio > Display/Multifunction > Inoperative GO to Pinpoint Test M
Comfort & Entertainment > Audio > Display/Multifunction > Inoperative GO to Pinpoint Test N
Comfort & Entertainment > Audio > Display/Multifunction > Inoperative GO to Pinpoint Test O
Comfort & Entertainment > Audio > Display/Multifunction > Inoperative GO to Pinpoint Test P
Comfort & Entertainment > Audio > Steering Wheel Control > Inoperative GO to Pinpoint Test H
Comfort & Entertainment > Audio > Steering Wheel Control > Inoperative GO to Pinpoint Test I
Comfort & Entertainment > Audio > Steering Wheel Control > Inoperative GO to Pinpoint Test J
Lighting/Glass/Vision > Windows/Glass > Door > Power Function GO to Pinpoint Test E
Lighting/Glass/Vision > Windows/Glass > Door > Power Function GO to Pinpoint Test F
Lighting/Glass/Vision > Windows/Glass > Door > Power Function GO to Pinpoint Test G
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test A
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test D
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test E
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test F
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test G
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test H
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test J
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test K
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test L
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Inoperative GO to Pinpoint Test M
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Control GO to Pinpoint Test A
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Control GO to Pinpoint Test B
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Control GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Control GO to Pinpoint Test K
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Control GO to Pinpoint Test L
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Control GO to Pinpoint Test M
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Stays On GO to Pinpoint Test C
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Stays On GO to Pinpoint Test E
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Stays On GO to Pinpoint Test F
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Stays On GO to Pinpoint Test G
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Stays On GO to Pinpoint Test I
Lighting/Glass/Vision > Interior Lighting > Instrument Panel > Stays On GO to Pinpoint Test J
Lighting/Glass/Vision > Exterior Lighting > Parking/Running > Inoperative GO to Pinpoint Test A

Symptom Chart

Symptom Chart: Instrument Panel and Interior Switches Illumination

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 Action
The illumination intensity of all networked and non-networked backlighting cannot be increased or decreased   GO to Pinpoint Test A
All networked illumination is inoperative (non-networked illumination functions correctly)   GO to Pinpoint Test B
All non-networked illumination sources are inoperative or always on (networked illumination functions correctly)   GO to Pinpoint Test C
One or more non-networked illumination source is inoperative   GO to Pinpoint Test D
The LH front door window control switch illumination is inoperative or always on   GO to Pinpoint Test E
One or more DDM controlled illumination source is inoperative   GO to Pinpoint Test F
One or more PDM controlled illumination source is inoperative   GO to Pinpoint Test G
The ignition switch (push button start) illumination is inoperative   GO to Pinpoint Test H
The ignition switch (push button start) illumination is always on   GO to Pinpoint Test I
The steering wheel switch(es) illumination is inoperative or always on   GO to Pinpoint Test J
The IPC illumination is inoperative or does not dim   GO to Pinpoint Test K
The FCIM illumination is inoperative or does not dim   GO to Pinpoint Test L
The ACM illumination is inoperative or does not dim   GO to Pinpoint Test M
The GSM illumination is inoperative or does not dim   GO to Pinpoint Test N
The RACM illumination is inoperative or does not dim   GO to Pinpoint Test O
The information and entertainment display unit illumination is inoperative or does not dim   GO to Pinpoint Test P

Pinpoint Test


PINPOINT TEST A: THE ILLUMINATION INTENSITY OF ALL NETWORKED AND NON-NETWORKED BACKLIGHTING CANNOT BE INCREASED OR DECREASED

Refer to Wiring Diagrams Cell 71 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • Headlamp switch
  • BCM
A1 VERIFY THE OPERATION OF THE HEADLAMPS
  • Ignition ON.
  • Place the headlamp switch in the HEADLAMPS ON position.
  • Place the headlamp switch in the OFF position.

Do the headlamps operate correctly?
Yes INSTALL a new headlamp switch.
REFER to: Headlamp Switch (417-01 Exterior Lighting, Removal and Installation). If the concern is the same after the repair, GO to A2
No DIAGNOSE the headlamps concern.
REFER to: Headlamps (417-01 Exterior Lighting, Diagnosis and Testing).

A2 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM and related in-line 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 the BCM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 B: ALL NETWORKED ILLUMINATION IS INOPERATIVE (NON-NETWORKED ILLUMINATION FUNCTIONS CORRECTLY)

Refer to Wiring Diagrams Cell 71 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • Communication network concern
  • BCM
B1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Do all modules pass the network test?
Yes GO to B2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

B2 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM and related in-line 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 the BCM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 C: ALL NON-NETWORKED ILLUMINATION SOURCES ARE INOPERATIVE OR ALWAYS ON (NETWORKED ILLUMINATION FUNCTIONS CORRECTLY)

Refer to Wiring Diagrams Cell 71 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1315:11 Backlighting (Non Reflective Controls) Illumination Output: Circuit Short To Ground This DTC sets in continuous memory and on-demand when the BCM detects excessive current draw from the backlighting illumination output circuit.
BCM B1315:15 Backlighting (Non Reflective Controls) Illumination Output: Circuit Short To Battery Or Open This DTC sets in continuous memory and on-demand when the BCM detects lower than expected current draw from the backlighting illumination output circuit.

Possible Sources

  • Wiring, terminals or connectors
  • BCM
C1 CHECK THE EXTERIOR LIGHTING
  • Ignition ON.
  • Place the headlamp switch in the OFF position.
  • Observe the parking lamps.

Are the parking lamps operating correctly?
Yes If the illumination is inoperative,GO to C3
If the illumination is always on,GO to C2
No DIAGNOSE a concern with the headlamp switch.
REFER to: Headlamps (417-01 Exterior Lighting, Diagnosis and Testing).

C2 CHECK THE BCM (BODY CONTROL MODULE)ILLUMINATION OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Disconnect BCM C2280B .
  • Ignition ON.

Do the non-networked components continue to illuminate?
Yes REPAIR the circuit.
No GO to C5

C3 BYPASS THE BCM (BODY CONTROL MODULE)
  • Ignition OFF.
  • Disconnect BCM C2280B .
  • NOTE: If the jumper wire fuse fails during this step, refer to the Wiring Diagrams manual to identify the possible locations of the short to ground. Connect a fused jumper wire:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-45 Battery Positive

Do the non-networked components illuminate?
Yes DISCONNECT the fused jumper wire. GO to C4
No DISCONNECT the fused jumper wire and REPAIR the illumination circuit. After the repair:
If DTC U1000:00 is present in the BCM , CLEAR the Diagnostic Trouble Codes (DTCs) and REPEAT the self-test (required to enable the illumination output driver when DTC U1000:00 is stored in the BCM ).
If DTC U3000:49 is present in the BCM and all other Diagnostic Trouble Codes (DTCs) have been addressed,
REFER to: Body Control Module (BCM) (419-10 Multifunction Electronic Modules, Diagnosis and Testing).

C4 RETRIEVE THE DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE BCM (BODY CONTROL MODULE) SELF-TEST
  • Connect BCM C2280B .
  • Ignition ON.
  • Using a diagnostic scan tool, perform the BCM self-test.
  • Check the BCM Diagnostic Trouble Codes (DTCs).

Is DTC B1315:11 or U1000:00 present?
Yes If DTC B1315:11 is present in the BCM , CHECK the backlighting voltage supply for an intermittent short to ground.
If DTC U1000:00 is present in the BCM , a successful self-test must be completed before the illumination output is enabled.
No GO to C5

C5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Ignition OFF.
  • Disconnect and inspect all BCM and related in-line 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 the BCM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 connection concerns. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST D: ONE OR MORE NON-NETWORKED ILLUMINATION SOURCE IS INOPERATIVE

Refer to Wiring Diagrams Cell 71 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • Illuminated component
D1 CHECK VOLTAGE TO THE COMPONENT
  • Ignition OFF.
  • NOTE: If the headlamp switch illumination is inoperative, set the instrument panel and interior switch illumination to the brightest setting with the ignition ON prior to disconnecting the headlamp switch. NOTE: Anytime the EPB switch electrical connector is disconnected, the EPB system is deactivated and a DTC is stored in the ABS module. To restore the EPB system and clear the ABS module DTC , apply and release the parking brake twice within 5 seconds. Pause with the switch in the NEUTRAL position for approximately one-half second between each apply and release. Disconnect: Inoperative illuminated component
  • Ignition ON.
  • Place a shop light over the ambient light sensor and make sure the backlighting illumination reaches maximum intensity.
  • Place the headlamp switch in the PARKING LAMPS or HEADLAMPS position.
  • Press the illumination dim up switch until the backlighting illumination reaches maximum intensity.
  • Measure:
    Click to display connectors

      EPB switch


    Positive Lead Measurement / Action Negative Lead
      C3675-1   Ground

    Click to display connectors

      Adjustable pedal switch


    Positive Lead Measurement / Action Negative Lead
      C2089-3   Ground

    Click to display connectors

      Instrument panel console switch assembly 1(hazard/lane departure switch)


    Positive Lead Measurement / Action Negative Lead
      C2480-5   Ground

    Click to display connectors

      Overhead console


    Positive Lead Measurement / Action Negative Lead
      C930-10   Ground

    Click to display connectors

      Pro Trailer Backing Assist ™ (PTBA) switch


    Positive Lead Measurement / Action Negative Lead
      C2599-4   Ground

    Click to display connectors

      LH third row seat recline switch


    Positive Lead Measurement / Action Negative Lead
      C4549-5   Ground

    Click to display connectors

      RH third row seat recline switch


    Positive Lead Measurement / Action Negative Lead
      C4559-5   Ground

    Click to display connectors

      LH rear door window control switch


    Positive Lead Measurement / Action Negative Lead
      C701-4   Ground

    Click to display connectors

      RH rear door window control switch


    Positive Lead Measurement / Action Negative Lead
      C855-4   Ground

    Click to display connectors

      Trailer brake control switch


    Positive Lead Measurement / Action Negative Lead
      C2380-3   Ground

    Click to display connectors

      USB hub


    Positive Lead Measurement / Action Negative Lead
      C3512A-3   Ground

    Click to display connectors

      LH second row seat release easy entry switch


    Positive Lead Measurement / Action Negative Lead
      C3788-3   Ground

    Click to display connectors

      RH second row seat release easy entry switch


    Positive Lead Measurement / Action Negative Lead
      C3681-3   Ground

    Click to display connectors

      Rear sunshade switch


    Positive Lead Measurement / Action Negative Lead
      C3469-5   Ground

    Click to display connectors

      LH rear door tweeter speaker


    Positive Lead Measurement / Action Negative Lead
      C751-3   Ground

    Click to display connectors

      RH rear door tweeter speaker


    Positive Lead Measurement / Action Negative Lead
      C851-3   Ground

    Click to display connectors

      LH rear door lock switch


    Positive Lead Measurement / Action Negative Lead
      C731-4   Ground

    Click to display connectors

      RH rear door lock switch


    Positive Lead Measurement / Action Negative Lead
      C838-4   Ground

    Click to display connectors

      Passenger side front redundant seat adjust switch


    Positive Lead Measurement / Action Negative Lead
      C833A-4   Ground
      C833B-4   Ground

Is the voltage greater than 11 volts?
Yes GO to D2
No REPAIR the circuit.

D2 CHECK COMPONENT GROUND CIRCUIT
  • Measure:
    Click to display connectors

      EPB switch


    Positive Lead Measurement / Action Negative Lead
      C3675-1   C3675-2

    Click to display connectors

      Adjustable pedal switch


    Positive Lead Measurement / Action Negative Lead
      C2089-3   C2089-4

    Click to display connectors

      Instrument panel console switch assembly 1 (hazard/lane departure switch)


    Positive Lead Measurement / Action Negative Lead
      C2480-5   C2480-3

    Click to display connectors

      Overhead console


    Positive Lead Measurement / Action Negative Lead
      C930-10   C930-1

    Click to display connectors

      Pro Trailer Backing Assist ™ (PTBA) switch


    Positive Lead Measurement / Action Negative Lead
      C2599-4   C2599-6

    Click to display connectors

      LH third row seat recline switch


    Positive Lead Measurement / Action Negative Lead
      C4549-5   C4549-3

    Click to display connectors

      RH third row seat recline switch


    Positive Lead Measurement / Action Negative Lead
      C4559-5   C4559-3

    Click to display connectors

      LH rear door window control switch


    Positive Lead Measurement / Action Negative Lead
      C701-4   C701-6

    Click to display connectors

      RH rear door window control switch


    Positive Lead Measurement / Action Negative Lead
      C855-4   C855-6

    Click to display connectors

      Trailer brake control switch


    Positive Lead Measurement / Action Negative Lead
      C2380-3   C2380-4

    Click to display connectors

      USB hub


    Positive Lead Measurement / Action Negative Lead
      C3512A-3   C3512A-4

    Click to display connectors

      LH second row seat release easy entry switch


    Positive Lead Measurement / Action Negative Lead
      C3788-3   C3788-2

    Click to display connectors

      RH second row seat release easy entry switch


    Positive Lead Measurement / Action Negative Lead
      C3681-3   C3681-2

    Click to display connectors

      Rear sunshade switch


    Positive Lead Measurement / Action Negative Lead
      C3469-5   C3469-3

    Click to display connectors

      LH rear door tweeter speaker


    Positive Lead Measurement / Action Negative Lead
      C751-3   C751-4

    Click to display connectors

      RH rear door tweeter speaker


    Positive Lead Measurement / Action Negative Lead
      C851-3   C851-4

    Click to display connectors

      LH rear door lock switch


    Positive Lead Measurement / Action Negative Lead
      C731-4   C731-2

    Click to display connectors

      RH rear door lock switch


    Positive Lead Measurement / Action Negative Lead
      C838-4   C838-2

    Click to display connectors

      Passenger side front redundant seat adjust switch


    Positive Lead Measurement / Action Negative Lead
      C833A-4   C833A-2
      C833B-4   C833B-2

Is the voltage greater than 11 volts?
Yes INSTALL a new component in question.
No REPAIR the circuit.

PINPOINT TEST E: THE LH (LEFT-HAND) FRONT DOOR WINDOW CONTROL SWITCH ILLUMINATION IS INOPERATIVE OR ALWAYS ON

Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • Driver window control switch
E1 VERIFY THE LH (LEFT-HAND) FRONT WINDOW CONTROL SWITCH FUNCTIONALITY
  • Actuate the power window from the driver window control switch.

Does the window operate normally?
Yes INSTALL a new window control switch.
REFER to: Driver Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation).
No
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing).

PINPOINT TEST F: ONE OR MORE DDM CONTROLLED ILLUMINATION SOURCE IS INOPERATIVE OR ALWAYS ON

Refer to Wiring Diagrams Cell 117 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
DDM U2010:00 Switch Illumination: No Sub Type Information A continuous and on-demand DTC that sets when the DDM detects an open or a short to ground on the door lock control switch illumination output circuit.

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • LH door lock control switch
  • LF seat control switch
  • LF door tweeter speaker
  • DDM
F1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the DDM pass the network test?
Yes GO to F2
No DIAGNOSE a network concern.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

F2 VERIFY THE FUNCTIONALITY OF THE CONTROL SWITCHES
  • Actuate the door locks and the LF power seat the from the LHF door lock control switch.

Do the door locks and LF power seat operate correctly?
Yes If the switch illumination is always on. GO to F3
If the switch illumination is inoperative. GO to F4
No For door lock control switch concerns,
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing). For door window control switch concerns,
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing). For seat control switch concerns,
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

F3 CHECK THE DDM (DRIVER DOOR MODULE) ILLUMINATION CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Disconnect DDM C501A .

Is the LH door lock control switch illuminated?
Yes REPAIR the circuit.
No GO to F10

F4 CHECK THE DDM (DRIVER DOOR MODULE) ILLUMINATION CIRCUIT FOR VOLTAGE
  • Ignition OFF.
  • Disconnect LHF door lock switch C505 .
  • Disconnect LF seat control switch C545 .
  • Disconnect LH front door tweeter speaker C513 .
  • Ignition ON.
  • Headlamp switch in the PARKING LAMPS or HEADLAMPS position.
  • Press the illumination dim up switch until the illumination reaches full brightness.
  • Measure:
    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C505-4   Ground

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C545-15   Ground

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C513-3   Ground

Is the voltage greater than 11 volts?
Yes GO to F5
No GO to F7

F5 CHECK FOR GROUND TO THE DDM (DRIVER DOOR MODULE) ILLUMINATION CIRCUIT
  • Measure:
    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C505-4   C505-2

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C545-15   C545-1

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C513-3   C513-4

Is the voltage greater than 11 volts?
Yes For door lock control switch concerns, INSTALL a new LH door lock control switch.
REFER to: Front Door Lock Control Switch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For seat control switch concerns, INSTALL a new LF seat control switch.
REFER to: Front Seat Control Switch (501-10A Front Seats, Removal and Installation). For door tweeter speaker concerns, INSTALL a new LF door tweeter speaker.
REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
No GO to F6

F6 CHECK THE DDM (DRIVER DOOR MODULE) ILLUMINATION GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C505-2   C501A-17

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C545-1   C501A-17

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C513-4   Ground

Is the resistance less than 3 ohms?
Yes GO to F10
No REPAIR the circuit.

F7 CHECK THE DDM (DRIVER DOOR MODULE) ILLUMINATION CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect DDM C501A .
  • Measure:
    Click to display connectors

      For door lock control switch concerns


    Positive Lead Measurement / Action Negative Lead
      C505-4   C501A-15

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C545-15   C501A-15

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C513-3   C501A-15

Is the resistance less than 3 ohms?
Yes GO to F8
No REPAIR the circuit.

F8 CHECK THE DDM (DRIVER DOOR MODULE) ILLUMINATION CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors

      For door lock control switch concerns


    Positive Lead Measurement / Action Negative Lead
      C505-4   Ground

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C545-15   Ground

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C513-3   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to F9
No REPAIR the circuit.

F9 CHECK THE DDM (DRIVER DOOR MODULE) ILLUMINATION CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors

      For door lock control switch concerns


    Positive Lead Measurement / Action Negative Lead
      C505-4   C505-2

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C545-15   C545-1

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C513-3   C513-4

Are the resistances greater than 10,000 ohms?
Yes GO to F10
No REPAIR the circuit.

F10 CHECK FOR CORRECT DDM (DRIVER DOOR MODULE) OPERATION
  • Disconnect and inspect all DDM and related in-line 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 the DDM and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 DDM .
REFER to: Driver Door Module (DDM) (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 connection concerns. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST G: ONE OR MORE PDM (PASSENGER DOOR MODULE)CONTROLLED ILLUMINATION SOURCE IS INOPERATIVE OR ALWAYS ON

Refer to Wiring Diagrams Cell 100 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
PDM U2010:00 Switch Illumination: No Sub Type Information A continuous and on-demand DTC that sets in the PDM when the smart driver reports an open circuit or short to ground on the RHF door switch illumination output circuit.

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • RH door lock control switch
  • RHF door window control switch
  • RF seat control switch
  • RF door tweeter speaker
  • PDM
G1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the PDM pass the network test?
Yes GO to G2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

G2 VERIFY THE FUNCTIONALITY OF THE CONTROL SWITCHES
  • Ignition ON.
  • Actuate the door locks, the RHF power window and the RF power seat from the RHF door switches.

Do the door locks, RHF window and RF power seat operate correctly?
Yes If the switch illumination is always on, GO to G3
If the switch illumination is inoperative, GO to G4
No For door lock control switch concerns,
REFER to: Locks, Latches and Entry Systems (501-14 Handles, Locks, Latches and Entry Systems, Diagnosis and Testing). For door window control switch concerns,
REFER to: Glass, Frames and Mechanisms (501-11 Glass, Frames and Mechanisms, Diagnosis and Testing). For seat control switch concerns,
REFER to: Front Seats (501-10A Front Seats, Diagnosis and Testing).

G3 CHECK THE PDM (PASSENGER DOOR MODULE) ILLUMINATION CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition OFF.
  • Headlamp switch OFF
  • Disconnect PDM C652A .
  • Ignition ON.

Are the RHF door switches illuminated?
Yes REPAIR the circuit.
No GO to G10

G4 CHECK THE PDM (PASSENGER DOOR MODULE) ILLUMINATION CIRCUIT FOR VOLTAGE
  • Ignition OFF.
  • Disconnect RHF window control switch C604 .
  • Disconnect RHF door lock control switch C605 .
  • Disconnect RF seat control switch C680 .
  • Disconnect RF door tweeter speaker C613 .
  • Ignition ON.
  • Headlamp switch in the PARKING LAMPS or HEADLAMPS position.
  • Press the illumination dim up switch until the illumination reaches full intensity.
  • Measure:
    Click to display connectors

      For door window control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C604-4   Ground

    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C605-4   Ground

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C680-15   Ground

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C613-3   Ground

Is the voltage greater than 11 volts?
Yes GO to G5
No GO to G7

G5 CHECK FOR GROUND TO THE PDM (PASSENGER DOOR MODULE) ILLUMINATION CIRCUIT
  • Ignition OFF.
  • Measure:
    Click to display connectors

      For door window control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C604-4   C604-6

    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C605-4   C605-2

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C680-15   C680-1

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C613-3   C613-4

Is the voltage greater than 11 volts?
Yes For window control switch concerns, INSTALL a new RHF door window control switch.
REFER to: Passenger Door Window Control Switch (501-11 Glass, Frames and Mechanisms, Removal and Installation). For door lock control switch concerns, INSTALL a new RHF door lock control switch.
REFER to: Front Door Lock Control Switch (501-14 Handles, Locks, Latches and Entry Systems, Removal and Installation). For seat control switch concerns, INSTALL a new RF seat control switch.
REFER to: Front Seat Control Switch (501-10A Front Seats, Removal and Installation). For door tweeter speaker concerns, INSTALL a new RF door tweeter speaker.
REFER to: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
No GO to G6

G6 CHECK THE PDM (PASSENGER DOOR MODULE) ILLUMINATION GROUND CIRCUITS FOR AN OPEN
  • Measure:
    Click to display connectors

      For door window control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C604-6   C652A-17

    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C605-2   C652A-17

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C680-1   C652A-17

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C613-4   Ground

Is the resistance less than 3 ohms?
Yes GO to G10
No REPAIR the circuit.

G7 CHECK THE PDM (PASSENGER DOOR MODULE) ILLUMINATION CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Disconnect PDM C652A .
  • Measure:
    Click to display connectors

      For door window control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C604-4   C652A-15

    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C605-4   C652A-15

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C680-15   C652A-15

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C613-3   C652A-15

Is the resistance less than 3 ohms?
Yes GO to G8
No Repair the circuit.

G8 CHECK THE PDM (PASSENGER DOOR MODULE) ILLUMINATION CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors

      For door window control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C604-4   Ground

    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C605-4   Ground

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C680-15   Ground

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C613-3   Ground

Are the resistances greater than 10,000 ohms?
Yes GO to G9
No REPAIR the circuit.

G9 CHECK THE PDM (PASSENGER DOOR MODULE) ILLUMINATION CIRCUITS FOR A SHORT TOGETHER
  • Measure:
    Click to display connectors

      For door window control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C604-4   C604-1
      C604-4   C604-6

    Click to display connectors

      For door lock control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C605-4   C605-2

    Click to display connectors

      For seat control switch concerns:


    Positive Lead Measurement / Action Negative Lead
      C680-15   C680-1

    Click to display connectors

      For front door tweeter speaker concerns:


    Positive Lead Measurement / Action Negative Lead
      C613-3   C613-4

Are the resistances greater than 10,000 ohms?
Yes GO to G10
No REPAIR the circuit.

G10 CHECK FOR CORRECT PDM (PASSENGER DOOR MODULE) OPERATION
  • Disconnect: and inspect all PDM and related in-line 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 the PDM and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 PDM .
REFER to: Passenger Door Module (PDM) (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 connection concerns. ADDRESS the root cause of any connector or pin issues.

PINPOINT TEST H: THE IGNITION SWITCH (PUSH BUTTON START) ILLUMINATION IS INOPERATIVE

Refer to Wiring Diagrams Cell 71 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1314:11 White Lighting (Reflective Controls) Illumination Output: Circuit Short To Ground Sets when the BCM detects a short to ground from the backlighting illumination output.

Possible Sources

  • Wiring, terminals or connectors
  • Ignition switch (push button start)
  • BCM
H1 INSPECT ALL OTHER DIMMABLE ILLUMINATION SOURCES
  • Ignition ON.
  • Place the headlamp switch in the PARKING LAMPS ON position.
  • While pressing the instrument panel dimmer switch up and down, observe all other dimmable illumination sources.

Do all other dimmable illumination sources increase and decrease in brightness?
Yes GO to H2
No GO to Pinpoint Test A

H2 CHECK FOR VOLTAGE TO THE IGNITION SWITCH (PUSH BUTTON START)
  • Disconnect Ignition Switch (push button start) C2195 . NOTE: Leave the Ignition ON when disconnecting the Ignition Switch.
  • Using a diagnostic scan tool, carry out the BCM self-test.
  • Place the headlamp switch in the PARKING LAMPS ON position.
  • Press the instrument panel dimmer up switch until all other dimmable illumination is at its brightest intensity.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2195-5   Ground

Is the voltage greater than 11 volts?
Yes GO to H3
No GO to H4

H3 CHECK THE IGNITION SWITCH (PUSH BUTTON START) GROUND CIRCUIT FOR AN OPEN
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2195-5   C2195-3

Is the voltage greater than 11 volts?
Yes INSTALL a new ignition switch (push button start).
REFER to: Ignition Switch - Vehicles With: Keyless Entry and Push Button Start (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No REPAIR the circuit

H4 CHECK THE BCM (BODY CONTROL MODULE)DIMMABLE VOLTAGE OUTPUT CIRCUIT FOR AN OPEN
  • Connect Ignition Switch (Push Button Start) C2195 .
  • Ignition OFF.
  • Disconnect Ignition Switch (Push Button Start) C2195 .
  • Disconnect BCM C2280B .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2280B-44   C2195-5

Is the resistance less than 3 ohms?
Yes GO to H5
No REPAIR the circuit.

H5 CHECK THE BCM (BODY CONTROL MODULE)DIMMABLE VOLTAGE OUTPUT CIRCUIT FOR A SHORT TO GROUND
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C2195-5   Ground

Is the resistance greater than 10,000 ohms?
Yes GO to H6
No REPAIR the circuit.

H6 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM and related in-line 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 the BCM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 I: THE IGNITION SWITCH (PUSH BUTTON START) ILLUMINATION IS ALWAYS ON

Refer to Wiring Diagrams Cell 71 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

DTC Fault Trigger Conditions

DTC Description Fault Trigger Condition
BCM B1314:15 White Lighting (Reflective Controls) Illumination Output: Circuit Short To Battery Or Open Sets when the BCM detects a short to voltage from the backlighting illumination output.

Possible Sources

  • Wiring, terminals or connectors
  • Ignition switch (push button start)
  • BCM
I1 CONFIRM THE DIMMABLE BACKLIGHTING IS ON WITH THE EXTERIOR LIGHTING OFF
  • Observe the other dimmable components.

Are other dimmable components illuminated at full intensity?
Yes GO to Pinpoint Test A
No GO to I2

I2 CHECK THE BCM (BODY CONTROL MODULE)IGNITION SWITCH (PUSH BUTTON START) ILLUMINATION OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
  • Ignition ON.
  • Disconnect BCM C2280B .

Does the ignition switch continue to illuminate?
Yes REPAIR the circuit
No GO to I3

I3 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION
  • Disconnect and inspect all BCM and related in-line 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 the BCM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 J: THE STEERING WHEEL SWITCH(ES) ILLUMINATION IS INOPERATIVE OR ALWAYS ON

Refer to Wiring Diagrams Cell 71 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Wiring, terminals or connectors
  • Steering wheel switch(es)
  • Clockspring
  • Steering wheel

  WARNING: Incorrect repair techniques or actions can cause an accidental Supplemental Restraint System (SRS) deployment. Never compromise or depart from these instructions. Failure to precisely follow all instructions could result in serious personal injury from an accidental deployment.

J1 INSPECT THE NON-NETWORKED ILLUMINATION COMPONENTS
  • Ignition ON.
  • Place the headlamp switch in the PARKING LAMPS ON position.
  • While pressing the illumination dim up and dim down switch, monitor the non-networked illumination components.

Are all of the non-networked illumination sources inoperative or always on?
Yes GO to Pinpoint Test C
No If all steering wheel switch illumination is inoperative,GO to J2
If only one steering wheel switch is inoperative, GO to J7

J2 CHECK THE HORN OPERATION
  • Press the airbag module against the steering wheel.

Does the horn sound?
Yes GO to J3
No
REFER to: Horn - Component Location (413-06 Horn, Description and Operation).

J3 CHECK FOR ILLUMINATION VOLTAGE AT THE CLOCKSPRING
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Disconnect SCCM C226A .
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Remove the driver airbag.
    REFER to: Driver Airbag (501-20B Supplemental Restraint System, Removal and Installation).
  • Place a light source over the ambient light sensor so the illumination can reach maximum brightness.
  • Place the headlamp switch in the PARKING LAMPS ON position.
  • Ignition ON.
  • Press the illumination dim up switch to the full illumination position.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C226A-7   Ground

Is the voltage greater than 10 volts?
Yes GO to J4
No REPAIR the circuit

J4 CHECK THE ILLUMINATION GROUND CIRCUIT
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Disconnect Clockspring C218A .
  • Ignition ON.
  • Place the headlamp switch in the PARKING LAMPS ON position.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
      C226A-7   C218A-8

Is the voltage greater than 10 volts?
Yes GO to J5
No REPAIR the circuit.

J5 CHECK FOR VOLTAGE TO THE STEERING WHEEL HARNESS AT THE CLOCKSPRING
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Connect SCCM C226A .
  • Connect Clockspring C218A .
  • Disconnect Clockspring C218B .
  • Ignition ON.
  • Place the headlamp switch in the PARKING LAMPS ON position.
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
    C218B pin 15 (component side) C218B pin 4 (component side)

Is the voltage greater than 10 volts?
Yes INSTALL a new steering wheel.
REFER to: Steering Wheel (211-04 Steering Column, Removal and Installation).
No GO to J6

J6 CHECK FOR VOLTAGE TO THE STEERING WHEEL HARNESS AT THE CLOCKSPRING
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Disconnect Clockspring C218C .
  • Measure:
    Click to display connectors
    Positive Lead Measurement / Action Negative Lead
    C218B pin 15 (component side) C218C pin 9 (component side)

Is the resistance less then 3 ohms?
Yes INSTALL a SCCM .
REFER to: Steering Column Control Module (SCCM) (211-05 Steering Wheel and Column Electrical Components, Removal and Installation).
No INSTALL a new clockspring.
REFER to: Clockspring (501-20B Supplemental Restraint System, Removal and Installation).

J7 CHECK THE STEERING WHEEL HARNESS VOLTAGE CIRCUIT FOR AN OPEN
  • Ignition OFF.
  • Place the headlamp switch in the OFF position.
  • Depower the SRS .
    REFER to: Supplemental Restraint System (SRS) Depowering (501-20B Supplemental Restraint System, General Procedures).
  • Remove the driver airbag.
    REFER to: Driver Airbag (501-20B Supplemental Restraint System, Removal and Installation).
  • Disconnect Inoperative switch.
  • Ignition ON.
  • Place the headlamp switch in the PARKING LAMPS ON position.
  • Press the illumination dim up switch to the full illumination position.
  • Measure:
    Click to display connectors

      LH steering wheel switch (upper)


    Positive Lead Measurement / Action Negative Lead
      C2998-4   C2998-1

    Click to display connectors

      LH steering wheel switch (lower)


    Positive Lead Measurement / Action Negative Lead
      C2366-6   C2366-1

    Click to display connectors

      RH steering wheel switch (upper)


    Positive Lead Measurement / Action Negative Lead
      C2999-4   C2999-1

    Click to display connectors

      RH steering wheel switch (lower)


    Positive Lead Measurement / Action Negative Lead
      C2367-6   C2367-1

    Click to display connectors

      Downshift paddle shift switch


    Positive Lead Measurement / Action Negative Lead
      C2429-1   C2429-2

    Click to display connectors

      Upshift paddle shift switch


    Positive Lead Measurement / Action Negative Lead
      C2428-4   C2428-3

Is the voltage greater than 11 volts?
Yes INSTALL a new steering wheel switch.
REFER to: Steering Wheel Multifunction Switch (211-05 Steering Wheel and Column Electrical Components, Removal and Installation). If the downshift paddle switch is faulty, INSTALL a new switch.
If the upshift paddle switch is faulty, INSTALL a new switch.
No INSTALL a new steering wheel.
REFER to: Steering Wheel (211-04 Steering Column, Removal and Installation).

PINPOINT TEST K: THE IPC (INSTRUMENT PANEL CLUSTER) ILLUMINATION IS INOPERATIVE OR DOES NOT DIM

Refer to Wiring Diagrams Cell 60 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • IPC
K1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the IPC pass the network test?
Yes GO to K2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

K2 CHECK FOR CORRECT IPC (INSTRUMENT PANEL CLUSTER) OPERATION
  • Disconnect and inspect all IPC and related in-line 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 the IPC and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 L: THE FCIM (FRONT CONTROLS INTERFACE MODULE) ILLUMINATION IS INOPERATIVE OR DOES NOT DIM

Refer to Wiring Diagrams Cell 60 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • FCIM
L1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the FCIM pass the network test?
Yes GO to L2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

L2 CHECK FOR CORRECT FCIM (FRONT CONTROLS INTERFACE MODULE) OPERATION
  • Disconnect and inspect all FCIM and related in-line 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 the FCIM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
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 M: THE ACM (AUDIO FRONT CONTROL MODULE) ILLUMINATION IS INOPERATIVE OR DOES NOT DIM

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • ACM
M1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the ACM pass the network test?
Yes GO to M2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

M2 CHECK FOR CORRECT ACM (AUDIO FRONT CONTROL MODULE) OPERATION
  • Disconnect and inspect all ACM and related in-line 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 the ACM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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: Information and Entertainment System - Component Location (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Description and Operation).
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 N: THE GSM (GEAR SHIFT MODULE) ILLUMINATION IS INOPERATIVE OR DOES NOT DIM

Refer to Wiring Diagrams Cell 37 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • GSM
N1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the GSM pass the network test?
Yes GO to N2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

N2 CHECK FOR CORRECT GSM (GEAR SHIFT MODULE) OPERATION
  • Disconnect and inspect all GSM and related in-line 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 the GSM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 GSM .
REFER to: Gear Shift Module (GSM) (307-05 Automatic Transmission External Controls, 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 O: THE RACM (REAR AUDIO CONTROL MODULE) ILLUMINATION IS INOPERATIVE OR DOES NOT DIM

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • RACM
O1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the RACM pass the network test?
Yes GO to O2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

O2 CHECK FOR CORRECT RACM (REAR AUDIO CONTROL MODULE) OPERATION
  • Disconnect and inspect all RACM and related in-line 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 the RACM and related in-line connectors and all previously disconnected illumination system connectors. Make sure all connectors seat and latch correctly.
  • Operate the system to 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 P: THE INFORMATION AND ENTERTAINMENT DISPLAY UNIT ILLUMINATION IS INOPERATIVE OR DOES NOT DIM

Refer to Wiring Diagrams Cell 131 for schematic and connector information.

Normal Operation and Fault Conditions

REFER to: Instrument Panel and Interior Switches Illumination - System Operation and Component Description (413-00 Instrument Panel and Interior Switches Illumination, Description and Operation).

Possible Sources

  • Communication network concern
  • Wiring, terminals or connectors
  • Information and entertainment display unit (touchscreen)
  • APIM
P1 PERFORM A NETWORK TEST
  • Ignition ON.
  • Using a diagnostic scan tool, perform a network test.

Does the APIM pass the network test?
Yes GO to P2
No DIAGNOSE a concern with the network.
REFER to: Controller Area Network (CAN) Module Communications Network (418-00A Controller Area Network (CAN) Module Communications Network, Diagnosis and Testing).

P2 PERFORM A TEST OF THE AUDIO SYSTEM FROM THE INFORMATION AND ENTERTAINMENT DISPLAY UNIT
  • Verify the audio system can be operated from the information and entertainment display unit.

Does the audio system respond normally to information and entertainment display unit inputs?
Yes INSTALL a new information and entertainment display unit.
REFER to: Video Display (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Removal and Installation).
No
REFER to: Information and Entertainment System (415-00 Information and Entertainment System - General Information - Vehicles With: SYNC 4, Diagnosis and Testing).


    Instrument Panel and Interior Switches Illumination - System Operation and Component Description. Description and Operation

    System Operation System Operation Overview - Dimmable Illumination Dimmable illumination provides backlighting to switches and control components when the parking lamps are on...

    Instrumentation, Message Center and Warning Chimes

    ..

    Other information:

    Lincoln Navigator 2018-2025 Workshop Manual: Torque Converter Clutch (TCC). Diagnosis and Testing


    Torque Converter Clutch (TCC) For torque converter operation, REFER to: Torque Converter (307-01 Automatic Transmission - 10-Speed Automatic Transmission – 10R80, Description and Operation). Condition Possible Sources Action TCC does not apply TCC solenoid mechanically stuck OFF INSTALL a new TCC ..

    Lincoln Navigator 2018-2025 Workshop Manual: Front Drive Axle. Diagnosis and Testing


    Symptom Chart(s) 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 - Differential   Symptom Chart - Differential Condition Actions Axle overheating ..

    Categories

    Front Driveshaft. Removal and Installation

    Special Tool(s) / General Equipment

    Crimping Tool

    Materials

    Name Specification Motorcraft® Premium Long-Life Grease
    XG-1-E1 ESA-M1C75-B
     

    Removal

    With the vehicle in NEUTRAL, position the vehicle on a hoist.
    Refer to: Jacking and Lifting (100-02 Jacking and Lifting, Description and Operation).
    Remove the bolts and the transmission shield.

    read more

    Copyright © 2025 www.linavigator4.com