Pinpoint Test AQ : A Transmission Malfunction Display Is Never Or Always On

AQ1 CHECK THE MESSAGE CENTER OPERATION
- Close all doors.
- Ignition ON.
- Open the driver front door and observe the message center operation.
Does the message center display the driver door ajar message?

Yes GO to AQ2

No GO to Pinpoint Test A

AQ2 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM THE IPC (INSTRUMENT PANEL CLUSTER) SELF-TEST
- Using a diagnostic scan tool, perform the IPC self-test.
Are any DTC recorded?

Yes REFER to DTC Chart: IPC .

No GO to AQ3

AQ3 RETRIEVE THE RECORDED DTCS FROM THE TCM (TRANSMISSION CONTROL MODULE) SELF-TEST
- Using a diagnostic scan tool, perform the TCM self-test.
Are any TCM DTCs recorded?

Yes REFER to: Automatic Transmission .

No GO to AQ4

AQ4 RETRIEVE THE RECORDED DTCS FROM THE BCM (BODY CONTROL MODULE) SELF-TEST

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

Are any DTCs recorded?

Yes	REFER to: Body Control Module (BCM) .

If the transmission malfunction display is never on, the system is operating correctly at this time.If the transmission malfunction display is always on, INSTALL a new TCM. REFER to: Transmission Control Module (TCM) . TEST the system for normal operation. If the transmission malfunction display remains on, Refer to IPC GUIDED ROUTINE TESTING