Section 17-02: Lighting, Interior
1996 F-150, F-250, F-350, F-Super Duty Chassis Cab and Bronco Vehicles Workshop Manual
DIAGNOSIS AND TESTING

Inspection and Verification — Courtesy Lamps

  1. Verify the vehicle owner's original concern by operating the courtesy lamps to duplicate the condition.

  1. Inspect to determine if one of the following mechanical or electrical concerns applies:



    VISUAL INSPECTION CHART
    MechanicalElectrical
    • Damaged lamps
    • Damaged switches
    • Stuck switches
    • Open fuses
    • Damaged bulbs
    • Circuitry open/shorted
    • Connectors damaged/corroded

  1. If the concern(s) remains after the inspection, determine the symptom(s) and proceed to the following symptom chart.