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Pinpoint Test Bu : The Ignition-Engine On Warning Chime Is Inoperative

  1. Normal Operation and Fault Conditions 

    Ignition-Engine On Warning Chime. REFER to: Warning Chimes - System Operation and Component Description .

    Possible Sources 

    • Interior lighting concern
    • PRNDL indication concern
    • BCM
    • PCM
    • GWM
    • IPC

  2. BU1 CHECK THE SEATBELT WARNING CHIME OPERATION

    • Ignition OFF.

    • Ignition ON.

    • Unbuckle the driver seatbelt.

    • Monitor the seatbelt warning chime when the ignition is transitioned from OFF to RUN for 6 seconds.

    Does the seatbelt warning chime operate for approximately 6 seconds? 

    Yes  GO to  BU2
    No  GO to Pinpoint Test CB 

  3. BU2 CHECK THE DOOR AJAR INDICATION

    • Open the driver door.

    • Observe the door ajar warning indicator or door ajar RTT warning indicator.

    Does the door ajar warning indicator or door ajar RTT warning indicator turn on with the driver door ajar? 

    Yes  GO to  BU3
    No  GO to Pinpoint Test O 

  4. BU3 CHECK THE PRND OPERATION

    • Shift the transmission range selector through the ranges while observing the PRND indication.

    Does the PRND indication match the selected transmission range? 

    Yes  GO to  BU4
    No  GO to Pinpoint Test AA 

  5. BU4 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 the IPC DTC Chart. Refer to Diagnostic Trouble Code (DTC) Chart 
    No  GO to  BU5

  6. BU5 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: Body Control Module (BCM) .
    No  GO to  BU6

  7. BU6 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: Electronic Engine Controls .
    No  GO to  BU7

  8. BU7 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: Communications Network .
    No  GO to  BU8

  9. BU8 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect the BCM connectors.

    • Repair:

      • corrosion (install new connector or terminals - clean module pins)
      • damaged or bent pins - install new terminals/pins
      • pushed-out pins - install new pins as necessary

    • Reconnect the BCM connectors. Make sure they seat and latch correctly.

    • Operate the system and verify the concern is still present

    Is the concern still present? 

    Yes  CHECK On-Line Automotive Service Information System (OASIS) for any applicable service articles: TSB, GSB, SSM or FSA. If a service article exists for this concern, DISCONTINUE this test and FOLLOW the service article instructions. If no service articles address this concern, INSTALL a new BCM. REFER to: Body Control Module (BCM) .
    No  The system is operating correctly at this time. The concern may have been caused by module connections. ADDRESS the root cause of any connector or pin issues.
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