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Pinpoint Test AK : The Chime Always Sounds

  1. AK1 CHECK THE IPC (INSTRUMENT PANEL CLUSTER) FOR MESSAGE CENTER MESSAGES

    • Ignition ON.

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

    Does the IPC have any message center messages displayed? 

    Yes  REFER to Symptom Chart: IPC  or Symptom Chart: Message Center .
    No  GO to  AK2

  2. AK2 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  AK3
    No  REFER to: Headlamps . Refer to: Parking, Rear and License Plate Lamps .

  3. AK3 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  AK4
    No  REFER to: Interior Lighting .

  4. AK4 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) present? 

    Yes  For DTC B10F1:13, GO to  AK5. For all other Diagnostic Trouble Codes (DTCs), REFER to: Body Control Module (BCM) .
    No  GO to  AK7

  5. AK5 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT FOR VOLTAGE AT THE BCM (BODY CONTROL MODULE)

    • Ignition OFF.

    • Remove the key from the ignition cylinder.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280C-46
      GFD215811Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  GO to  AK6
    No  GO to  AK7

  6. AK6 CHECK KEY-IN-IGNITION INPUT CIRCUIT FOR A SHORT TO VOLTAGE AT THE BCM (BODY CONTROL MODULE) WITH THE IGNITION SWITCH DISCONNECTED

    • Disconnect Ignition Switch C250 .

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280C-46
      GFD215811Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is any voltage present? 

    Yes  REPAIR the circuit.
    No  INSTALL a new ignition switch. Refer to: Ignition Switch .

  7. AK7 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 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, Refer to BCM Hardware Testing .
    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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