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Pinpoint Test A : All The Parking Lamps Are Always On

WARNING: This page is about a different car, the 2015 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.

  1. A1 CHECK LOW BEAMS OPERATION

    • Ignition ON.
    • Place the headlamp switch in the OFF position.
    • Observe the operation of the low beam headlamps.

    Are the low beams illuminated? 

    Yes  REFER to: Headlamps .
    No  GO to  A2

  2. A2 CHECK THE HEADLAMP SWITCH

    • Ignition OFF.
    • Disconnect: Headlamp Switch C205 .
    • Carry out the headlamp switch component test. Refer to Component Testing for schematic and connector information.

    Does the headlamp switch pass the component test? 

    Yes  GO to  A3
    No  INSTALL a new headlamp switch. REFER to: Headlamp Switch .

  3. A3 CHECK THE HEADLAMP SWITCH PARKING LAMPS CIRCUIT FOR A SHORT TO GROUND

    • Measure:
      Positive Lead Measurement / Action Negative Lead
      C205-11
      GFD38391Courtesy of FORD MOTOR COMPANY
      		 Ground

    Is the resistance greater than 10, 000 ohms? 

    Yes  GO to  A4
    No  REPAIR the circuit.

  4. A4 CHECK FOR CORRECT BCM (BODY CONTROL MODULE) OPERATION

    • Disconnect and inspect all 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 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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