Pinpoint Test X: The Cruise Control RTT (RECONFIGURABLE Telltale) Indicator Or Acc (Adaptive Cruise Control) RTT (RECONFIGURABLE Telltale) Indicator Is Never On
- Normal Operation and Fault Conditions
See Cruise Control RTT Indicator. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the cruise control status, cruise control override or cruise control set speed display message is missing or deemed invalid by the IPC for less than 5 seconds, the IPC defaults the cruise control RTT indicator to the last indication state (on or off), based upon the last message received.
If the cruise control status, cruise control override or cruise control set speed display message is missing or if the data is deemed invalid by the IPC for 5 seconds or longer, the IPC defaults the cruise control RTT indicator off.
Possible Sources
- Communication concern
- Cruise control concern
- GWM concern
- IPC
- X1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors and the hood.
- Clear all message center warnings by pressing the OK button for each warning present.
- Monitor the door ajar RTT indicator.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar RTT indicator.
Is the door ajar RTT 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 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 (CMDTCs).
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to: Controller Area Network (CAN) Module Communications Network . No DIAGNOSE the cruise control system. For base cruise control, REFER to: Cruise Control . For ACC, REFER to: Cruise Control .