Pinpoint Test Aa: The Motor Over-Temperature Warning RTT (RECONFIGURABLE Telltale) Indicator Is Never Or Always On
- Normal Operation and Fault Conditions
See Motor Over-Temperature Warning RTT Indicator. REFER to: Instrument Panel Cluster (IPC) - System Operation and Component Description .
If the engine coolant temperature data or engine overheat indication request messages are missing or invalid for less than 5 seconds, the IPC defaults the motor over-temperature warning RTT indicator to the last indication state (on or off), based upon on the last message received.
If the engine coolant temperature data request or engine overheat indication request messages are missing or invalid for 5 seconds or longer, the IPC sets DTC U0100:00 and defaults the motor over-temperature warning RTT indicator on.
Possible Sources
- Communication concern
- Message center concern
- GWM concern
- PCM concern
- IPC
- AA1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors and the hood.
- Monitor the door ajar RTT indicator.
- Open the driver door.
- 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 AA2 No GO to Pinpoint Test A - AA2 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 AA3 - AA3 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 all PCM Diagnostic Trouble Codes (DTCs). REFER to the Master DTC Chart.