Pinpoint Test Bu : The Engine On Warning Message Is Never Or Always Displayed
- Normal Operation and Fault Conditions
See Engine On. REFER to: Message Center - System Operation and Component Description .
Possible Sources
- Interior lighting concern
- PRNDL indication concern
- BCM concern
- GWM concern
- PCM concern
- IPC
- BU1 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 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 BU2 No GO to Pinpoint Test A - BU2 CHECK THE PRNDL OPERATION
- Shift the transmission through the ranges while observing the PRNDL indication.
Does the PRNDL indication match the selected transmission range?
Yes GO to BU3 No GO to Pinpoint Test AJ - BU3 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 DTC Chart: IPC . No GO to BU4 - BU4 PERFORM THE BCM (BODY CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the BCM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the Master DTC Chart. No GO to BU5 - BU5 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) KOEO (KEY ON, ENGINE OFF) SELF-TEST
- Using a diagnostic scan tool, perform the PCMKOEO self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?
Yes REFER to the Master DTC Chart. No GO to BU6 - BU6 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: Communications Network . No Refer to IPC Guided Routine Testing .