Pinpoint Test X: The Forward Collision Warning RTT (RECONFIGURABLE Telltale) 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 warning RTT 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 warning RTT indicator off.
Possible Sources
- Communication concern
- Adaptive cruise control concern
- GWM
- IPC
- X1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors, tailgate and the 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 X2 No GO to Pinpoint Test A - X2 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 GO to X3 - X3 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 DIAGNOSE the adaptive cruise control system. REFER to: Cruise Control .