Pinpoint Test S : The LH (Left-Hand) - RH (Right-Hand) Turn Signal, Front Fog Lamp, Rear Fog Lamp (If Equipped) Or High Beam Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
See LH/RH Turn Signal, Front Fog Lamp, Rear Fog Lamp or High Beam. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the left turn lamp on request, right turn lamp on request, front fog lamp indicator request, high beam status or rear fog lamp indicator request (if equipped) message is missing for less than 5 seconds, the IPC defaults the specific indicator to its last indication state (on or off), based upon the last message received.
If the left turn lamp on request, right turn lamp on request, front fog lamp indicator request, high beam status or rear fog lamp indicator request (if equipped) message is missing for 5 seconds or longer, the IPC defaults the specific indicator off.
Possible Sources
- Turn indicator concern
- Front fog lamp concern
- High beam concern
- Rear fog lamp concern (if equipped)
- Communication concern
- BCM
- GWM
- IPC
- S1 DETERMINE THE FAULT CONDITION
- Ignition ON.
- Check the operation of the turn signals, fog lamps or high beams.
Do the turn signals, fog lamps or high beams operate correctly?
Yes GO to S2 No For high beams, REFER to: Headlamps . For turn signals, REFER to: Turn Signal and Hazard Lamps . For front or rear fog lamps, REFER to: Fog Lamps . - S2 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors, liftgate and hood.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar RTT warning indicator.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar RTT warning indicator.
Is the door ajar RTT warning indicator off with the door closed, and on with the door open?
Yes GO to S3 No GO to Pinpoint Test A - S3 CHECK THE GWM (GATEWAY MODULE A) DIAGNOSTIC TROUBLE CODES (DTCS)
- Using a diagnostic scan tool, check the GWM Continuous Memory Diagnostic Trouble Codes (DTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Communications Network . No GO to S4 - S4 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the IPC DTC Chart. Refer to Diagnostic Trouble Code (DTC) Chart No DIAGNOSE all BCM Diagnostic Trouble Codes (DTCs). REFER to: Body Control Module (BCM) .