Section 17-04: Lamps, Daytime Running
1996 F-150, F-250, F-350, F-Super Duty, Chassis Cab and Motorhome Chassis, and Bronco (Canadian Vehicles Only) Workshop Manual
DIAGNOSIS AND TESTING

Inspection and Verification

  1. Verify the vehicle owner's original concern by operating the daytime running lamps to duplicate the vehicle owner's concern.

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



    VISUAL INSPECTION CHART
    MechanicalElectrical
    • Damaged headlamps
    • Damaged connectors
    • Damaged ignition switch
    • Damaged daytime running lamp control module
    • Damaged parking brake switch
    • Damaged headlamp switch
    • Damaged multi-function switch
    • Open instrument panel fuse (10A)
    • Open power distribution box fuses (15A, 30A)
    • Circuitry open/shorted

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