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Home >> Ford >> 2021 >> Mustang Mach 1, Automatic Trans >> 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 BW: The Turn Signal-Hazard On Chime Or Turn Signal Left On Chime Is Inoperative

Pinpoint Test BW: The Turn Signal-Hazard On Chime Or Turn Signal Left On Chime Is Inoperative

  1. Normal Operation and Fault Conditions 

    See Turn Signal On Chime Tone. REFER to: Message Center - System Operation and Component Description .

    Possible Sources 

    • Turn signal indication concern
    • Communication concern
    • BCM concern
    • GWM concern
    • IPC

  2. BW1 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  BW2
    No  GO to Pinpoint Test BV 
  3. BW2 CHECK THE TURN SIGNAL INDICATOR OPERATION

    • Verify the RH and LH turn signal indicators operate correctly.

    Do the turn signal indicators operate correctly? 

    Yes  GO to  BW3
    No  GO to Pinpoint Test U 
  4. BW3 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  BW4
  5. BW4 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 IPC. Refer to Instrument Panel Cluster (IPC) .