Pinpoint Test An : The Fuel Maintenance Mode Or Oil Maintenance Mode Message Is Never Displayed (PHEV (Plug-In Hybrid Electric Vehicle))

AN1 CHECK THE MESSAGE CENTER OPERATION
- Ignition ON.
- Close all doors and the liftgate.
- 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

No

AN2 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 in this section.

No GO to AN3

AN3 PERFORM THE PCM (POWERTRAIN CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the PCM self-test.
Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes REFER to: Electronic Engine Controls - Plug-In Hybrid Electric Vehicle (PHEV).

No GO to AN4

AN4 PERFORM THE GWM (GATEWAY MODULE A) SELF-TEST

Using a diagnostic scan tool, perform the GWM self-test.

Are any Diagnostic Trouble Codes (DTCs) recorded?

Yes	REFER to: MODULE COMMUNICATIONS NETWORK .

No	If the check fuel fill inlet message is never on, the system is operating correctly at this time. There are currently no vehicle concerns present that require the check fuel fill inlet message display.If the check fuel fill inlet message is always on, Click here to access Guided Routine (PCM).