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Pinpoint Test At : The Chime Always Sounds

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  1. Normal Operation and Fault Conditions 

    See PRNDL Not In Park Warning Chime, Ignition-Engine On Warning Chime and Headlamps On Warning Chime. REFER to: Warning Chimes - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    BCM B10F1:14 Key In Switch: Circuit Short To Ground Or Open A continuous and on-demand DTC sets if the BCM detects an open or short to voltage on the key-in-ignition input circuit.

    Possible Sources 

    • Exterior lighting concern
    • Interior lighting concern
    • PRNDL concern
    • Wiring, terminals or connectors
    • Ignition switch
    • Steering column lock and ignition switch housing
    • BCM
    • IPC

  2. AT1 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) FOR MESSAGE CENTER MESSAGES

    • Ignition OFF.

    • Ignition ON.

    • Check the IPC and message center for illuminated warning indicator or message center displays.

    Does the IPC have any RTT indicators illuminated or message center messages displayed? 

    Yes  REPAIR all message center indication concerns first. REFER to Symptom Chart: IPC or Symptom Chart: Information And Message Center, in DIAGNOSIS AND TESTING 
    No  GO to  AT2

  3. AT2 CHECK THE EXTERIOR LIGHTING OPERATION

    • Place the headlamp switch in the OFF position.

    • Close all doors.

    • Wait one minute.

    • Observe the exterior lights.

    Are the headlamps and parking lamps off? 

    Yes  GO to  AT3
    No  REFER to: Headlamps . or REFER to: Parking, Rear and License Plate Lamps .

  4. AT3 CHECK THE INTERIOR LIGHTING OPERATION

    • Open and close the driver door.

    • Observe the interior lights.

    Do the interior lights operate correctly from the driver door? 

    Yes  GO to  AT4
    No  REFER to: INTERIOR LIGHTING

  5. AT4 CHECK THE PRNDL OPERATION

    • Apply the parking brake.

    • Observe the PRNDL operation while shifting the selector lever through the transmission ranges.

    Does the PRNDL operate correctly and display P when in PARK (P)? 

    Yes  GO to  AT5
    No  GO to Pinpoint Test AB 

  6. AT5 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  AT6

  7. AT6 CHECK THE BCM (BODY CONTROL MODULE) INPUT PIDS FROM THE IGNITION SWITCH

    • Using a diagnostic scan tool, view the BCM Parameter Identifications (PIDs).

    • Select and monitor the BCM ignition switch (IGN_SW_ACC), (IGN_SW_RUN) and (IGN_SW_KEY_IN) Parameter Identifications (PIDs) while cycling the ignition switch through the ACC, OFF, and RUN states.

    Do the BCM Parameter Identifications (PIDs) match the ignition switch position? 

    Yes  GO to  AT7
    No  DIAGNOSE the ignition switch outputs to the BCM. REFER to: Steering Wheel and Column Electrical Components .

  8. AT7 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT FOR VOLTAGE AT THE BCM (BODY CONTROL MODULE)

    • Ignition OFF.

    • Disconnect BCM C2280D.

    • Remove the key from the ignition cylinder.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      Refer to C2280D-22
      GFD328094Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  GO to  AT8
    No  GO to  AT10

  9. AT8 CHECK THE KEY-IN-IGNITION INPUT WITH THE IGNITION SWITCH DISCONNECTED

    • Disconnect Ignition Switch C250.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      Refer to C2280D-22
      GFD328094Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  GO to  AT9

  10. AT9 CHECK THE IGNITION SWITCH OPERATION

    Does the ignition switch pass the component test? 

    Yes  INSTALL a new steering column lock and ignition switch housing. REFER to: Steering Column Lock and Ignition Switch Housing .
    No  INSTALL a new ignition switch. REFER to: Ignition Switch .

  11. AT10 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Ignition OFF.

    • Disconnect and inspect the BCM and all related in-line 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 and all related in-line connectors. Make sure they seat and latch correctly.

    • Operate the system and verify the concern is still present

    Is the concern still present? 

    Yes  CHECK On-Line Automotive Service Information System (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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