Pinpoint Test Z: The Front Fog Lamp Or High Beam RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
See Front Fog Lamp or High Beam. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the front fog lamp indicator request or high beam status 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 front fog lamp indicator request or high beam status message is missing for 5 seconds or longer, the IPC defaults the specific indicator off.
Possible Sources
- Front fog lamp concern
- High beam concern
- Communication concern
- BCM
- GWM
- IPC
- Z1 DETERMINE THE FAULT CONDITION
- Ignition ON.
- Check the operation of the fog lamps or high beams.
Do the fog lamps or high beams operate correctly?
Yes GO to Z2 No For high beams, REFER to: Headlamps . . For front fog lamps, REFER to: Fog Lamps . - Z2 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors, tailgate 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 Z3 No GO to Pinpoint Test A - Z3 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: Controller Area Network (CAN) Module Communications Network . No GO to Z4 - Z4 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 Diagnostic Trouble Code (DTC) Chart . No DIAGNOSE all BCM Diagnostic Trouble Codes (DTCs). REFER to the Diagnostic Trouble Code (DTC) Chart .