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Pinpoint Test AP : The Parking Brake Warning Chime Is Inoperative

  1. AP1 CHECK THE SAFETY BELT WARNING CHIME OPERATION

    • Ignition OFF.
    • Unbuckle the driver safety belt.
    • Ignition ON.
    • Monitor the safety belt warning chime when the ignition switch is transitioned from OFF to RUN for 6 seconds.

    Does the safety belt warning chime operate for approximately 6 seconds? 

    Yes  GO to  AP2
    No  Refer to IPC Hardware Testing .

  2. AP2 CHECK THE BRAKE WARNING INDICATOR FOR CORRECT OPERATION

    • Apply the parking brake.
    • Observe the brake warning indicator.

    Does the brake warning indicator illuminate? 

    Yes  GO to  AP3
    No  GO to Pinpoint Test L 

  3. AP3 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 Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to DTC Chart: IPC 
    No  GO to  AP4

  4. AP4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM 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  AP5

  5. AP5 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.
    • Disconnect and inspect all 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 determine if the concern is still present

    Is the concern still present? 

    Yes  CHECK OASIS for any applicable Technical Service Bulletins (TSBs). If a TSB exists for this concern, DISCONTINUE this test and FOLLOW TSB instructions. If no Technical Service Bulletins (TSBs) 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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