Pinpoint Test AP: The SELECTSHIFT (Automatic Transmission) Or Crawl Mode (Manual Transmission) RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
See SelectShift (Auto)/Crawl Mode (Manual). REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the transmission gear display message (automatic) or crawl mode active status message (manual) is missing for less than 5 seconds, the IPC defaults the SelectShift RTT indicator or Crawl mode RTT indicator to its last indication state (on or off), based upon the last message received.
If the transmission gear display message (automatic) or crawl mode active status message (manual) is missing for 5 seconds or longer, the IPC defaults the SelectShift RTT indicator or Crawl mode RTT indicator off.
Possible Sources
- SelectShift concern (automatic transmission)
- Crawl mode concern (manual transmission)
- Communication concern
- PCM concern
- GWM
- IPC
- AP1 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.
- Open the driver door.
- Clear the message center popup warning.
- Monitor the door ajar RTT.
Is the door ajar RTT off with the door closed, and on with the door open?
Yes GO to AP2 No GO to Pinpoint Test A - AP2 PERFORM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Ignition ON.
- 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 AP3 - AP3 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 AP4 - AP4 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON, ENGINE OFF) SELF-TEST
- Ignition ON.
- Using a diagnostic scan tool, perform the PCM KOEO self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the Diagnostic Trouble Code (DTC) Chart . No For automatic transmission, DIAGNOSE the SelectShift. REFER to: External Controls - 10-Speed Automatic Transmission - 10R60. . For manual transmission, DIAGNOSE the manual shift. REFER to: External Controls - 7-Speed Manual Transmission - MT88.