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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 81 (Interior Lighting System -- F250-F550 Super Duty) >> Diagnosis And Testing >> Interior Lighting >> Inspection and Verification

Inspection and Verification

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify the customer concern.
  2. Visually inspect for obvious signs of mechanical or electrical damage.
    NOTE: For SuperCab and Crew Cab vehicles, the front interior lamp is part of the overhead console.
    VISUAL INSPECTION CHART

    Mechanical Electrical
    • Door ajar switches
    • Body Control Module (BCM) fuse(s):
      • 4 (10A) (demand lamps)
      • 12 (15A) (courtesy lamps)
    • Wiring, terminals, or connectors
    • Cargo lamp (part of the high mounted stoplamp)
    • Instrument panel dimmer switch
    • Interior lamps
    • Running board lamps
    • Vanity mirror lamps
    • Engine compartment lamp
    • Steering Column Control Module (SCCM)
    • BCM
  3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
  4. NOTE: Make sure to use the latest scan tool software release.
  5. If the cause is not visually evident, connect the scan tool to the Data Link Connector (DLC).
  6. NOTE: The Vehicle Communication Module (VCM) prove-out confirms power and ground from the DLC are provided to the VCM.
  7. If the scan tool does not communicate with the VCM:
    • Check the VCM connection to the vehicle.
    • Check the scan tool connection to the VCM.
    • No Power To The Scan Tool, to diagnose no power to the scan tool. Refer to SYMPTOM CHART .
  8. If the scan tool does not communicate with the vehicle:
    • Verify the ignition key is in the ON position.
    • Verify the scan tool operation with a known good vehicle.
    • Refer to MODULE COMMUNICATIONS NETWORK to diagnose no response from the PCM.
  9. Carry out the network test.
    • If the scan tool responds with no communication with one or more modules, refer to MODULE COMMUNICATIONS NETWORK .
    • If the network test passes, retrieve and record the continuous memory DTCs.
  10. Clear the continuous DTCs and carry out the self-test diagnostics for the BCM and SCCM.
  11. If the DTCs retrieved are related to the concern, go to DTC CHARTS . For all other DTCs, refer to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULES .
  12. If no DTCs related to the concern are retrieved, GO to SYMPTOM CHART .