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Home >> Ford >> 2021 >> Transit-250 Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation, Message Center And Warning Chimes (2 Of 2) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test BC: The Parking Brake Warning Chime Is Inoperative

Pinpoint Test BC: The Parking Brake Warning Chime Is Inoperative

  1. Normal Operation and Fault Conditions 

    See Parking Brake Warning Chime. REFER to: Warning Chimes - System Operation and Component Description .

    Possible Sources 

    • Brake warning indication concern
    • Communication concern
    • BCM
    • PCM
    • GWM
    • IPC

    Visual Inspection and Pre-checks 

    • Check the operation of the parking brake warning chime with the vehicle moving at least 10 km/h (6.2 mph) and the parking brake slightly applied (just enough to turn the brake warning indicator on without damaging the rear brakes).

  2. BC1 CHECK THE SEATBELT WARNING CHIME OPERATION

    • Ignition OFF.

    • Unbuckle the driver seatbelt.

    • Ignition ON.

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

    Does the seatbelt warning chime operate for approximately 6 seconds? 

    Yes  GO to  BC2
    No  GO to Pinpoint Test AT 

  3. BC2 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  BC3
    No  GO to Pinpoint Test M 

  4. BC3 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 in Diagnostic Trouble Code (DTC) Chart .
    No  GO to  BC4

  5. BC4 RETRIEVE THE RECORDED DIAGNOSTIC TROUBLE CODES (DTCS) FROM 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 the appropriate Electronic Engine Controls article.
    No  GO to  BC5

  6. BC5 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  BC6

  7. BC6 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  GO to  BC7

  8. BC7 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 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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