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Home >> Ford >> 2018 >> Transit-350 Base, Van Cargo Extended, 3.2L Eng VIN V >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Information Center - Instrumentation, Message Center And Warning Chimes (2 Of 2) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> Pinpoint Tests >> Pinpoint Test Aw : The Key-In-Ignition Warning Chime Is Inoperative

Pinpoint Test Aw : The Key-In-Ignition Warning Chime Is Inoperative

  1. Refer to Power Distribution for schematic and connector information.

    Normal Operation and Fault Conditions 

    See Key-In-Ignition Warning Chime. REFER to: Warning Chimes - System Operation and Component Description .

    DTC Fault Trigger Conditions 

    DTC Description Fault Trigger Condition
    BCM B10F1:94 Key In Switch: Unexpected Operation An on-demand DTC that sets if the BCM detects ignition START, RUN/START or RUN/ACC inputs without the key-in-ignition input.

    Possible Sources 

    • Wiring, terminals or connectors
    • Interior lighting concern
    • Key-in-ignition warning switch (part of the ignition switch)
    • BCM
    • IPC

  2. AW1 CHECK THE SAFETY BELT WARNING CHIME OPERATION

    • Ignition OFF.

    • Unbuckle the driver safety belt.

    • Ignition ON.

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

    Does the safety belt warning chime operate for approximately 6 seconds? 

    Yes  GO to  AW2
    No  GO to Pinpoint Test A 

  3. AW2 CHECK THE INTERIOR LAMPS OPERATION

    • Open and close the driver door.

    • Observe the interior lamps.

    Do the interior lamps operate correctly from the driver door? 

    Yes  GO to  AW3
    No  REFER to: Interior Lighting .

  4. AW3 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 B10F1:94, GO to  AW4 For all other Diagnostic Trouble Codes (DTCs), REFER to: Body Control Module (BCM) .
    No  GO to  AW6

  5. AW4 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT AT THE BCM (BODY CONTROL MODULE)

    • Ignition OFF.

    • Insert the key into the ignition cylinder.

    • Disconnect BCM C2280D.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280D-65
      GFD311333Courtesy of FORD MOTOR COMPANY
      		 C2280D-62

    Is the resistance less than 3 ohms? 

    Yes  GO to  AW6
    No  GO to  AW5

  6. AW5 CHECK THE KEY-IN-IGNITION INPUT CIRCUIT BETWEEN THE BCM (BODY CONTROL MODULE) AND THE IGNITION SWITCH FOR AN OPEN

    • Disconnect Ignition Switch C250.

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C2280D-62
      GFD311333Courtesy of FORD MOTOR COMPANY
      		 C250-5

    Is the resistance less than 3 ohms? 

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

  7. AW6 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • 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 verify 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, 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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