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Home >> Ford >> 2021 >> Expedition XLT, RWD >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Instrumentation, Message Center And Warning Chimes (2 Of 2) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test Bn: The Parking Brake Warning Chime Is Inoperative >> Pinpoint Test Bn: The Parking Brake Warning Chime Is Inoperative

Pinpoint Test Bn: The Parking Brake Warning Chime Is Inoperative

  1. BN1 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  BN2
    No  GO to Pinpoint Test BQ 
  2. BN2 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  BN3
    No  GO to Pinpoint Test R 
  3. BN3 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 article. Refer to DTC Chart: Instrument Panel Cluster (IPC)  .
    No  GO to  BN4
  4. BN4 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  BN5
  5. BN5 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  INSTALL a new BCM. Refer to: Body Control Module (BCM) .