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Home >> Ford >> 2023 >> Mustang Mach-E Select, RWD >> Repair and Diagnosis >> Electrical >> Gauges >> Instrumentation, Message Center And Warning Chimes >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test Be: The Ignition-Engine On Warning Chime Is Inoperative

Pinpoint Test Be: 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
    • SOBDMC
    • GWM
    • IPC

  2. BE1 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 BE2 
    No  GO to Pinpoint Test A 
  3. BE2 CHECK THE DOOR AJAR INDICATION

    • Open the driver door.

    • Observe the door ajar door ajar RTT warning indicator.

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

    Yes  GO to BE3 
    No  GO to Pinpoint Test O 
  4. BE3 CHECK THE PRNDL OPERATION

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

    Does the PRNDL indication match the selected transmission range? 

    Yes  GO to BE4 
    No  GO to Pinpoint Test AD 
  5. BE4 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 Diagnostic Trouble Code (DTC) Chart 
    No  GO to BE5 
  6. BE5 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 the appropriate DTC Chart.
    No  GO to BE6 
  7. BE6 PERFORM 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 DTC Chart.
    No  GO to BE7 
  8. BE7 PERFORM THE SOBDMC (SECONDARY ON-BOARD DIAGNOSTIC CONTROL MODULE C) SELF-TEST

    • Using a diagnostic scan tool, perform the SOBDMC self-test.

    Are any Diagnostic Trouble Codes (DTCs) recorded? 

    Yes  REFER to the appropriate DTC Chart.
    No  GO to BE8 
  9. BE8 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: Controller Area Network (CAN) Module Communications Network .
    No  DIAGNOSE the ignition system. REFER to: Steering Wheel and Column Electrical Components .