Pinpoint Test Bl: The Forward Collision RTT (RECONFIGURABLE Telltale) Warning Indicator Is Never On
- Normal Operation and Fault Conditions
See Forward Collision Warning. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the forward collision warning indicator request message is missing or deemed invalid by the IPC for less than 5 seconds, the IPC defaults the forward collision RTT warning indicator to the last indication state (on or off), based upon the last message received.
If the forward collision warning indicator request message is missing or if the data is deemed invalid by the IPC for 5 seconds or longer, the IPC defaults the forward collision RTT warning indicator off.
Possible Sources
- Communication concern
- Adaptive cruise control concern
- GWM
- IPC
- BL1 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 BL2 No GO to Pinpoint Test A - BL2 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. No GO to BL3 - BL3 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 DIAGNOSE the adaptive cruise control system. REFER to: Cruise Control - Vehicles With: Adaptive Cruise Control With Lane Centering