Section 17-01: Lighting, Exterior
1996 F-150, F-250, F-350, F-Super Duty Motorhome and Bronco Workshop Manual
DIAGNOSIS AND TESTING
Symptom Chart, Headlamps
HEADLAMPS
Condition
Possible Source
Action
Headlamps Inoperative
Circuitry open/shorted.
Damaged headlamp switch.
Blown fuse.
GO to
Pinpoint Test A
.
Headlamps On Continuously
Circuitry open/shorted.
Damaged headlamp switch.
GO to
Pinpoint Test B
.
High Beams or Low Beams Inoperative
Circuitry open/shorted.
Damaged multi-function switch.
GO to
Pinpoint Test C
.
One High Beam or One Low Beam Headlamp Inoperative
Circuitry open/shorted.
Damaged connector.
Headlamp bulb damaged.
GO to
Pinpoint Test D
.
Flash-to-Pass Inoperative
Blown fuse.
Circuitry open/shorted.
Damaged multi-function switch.
GO to
Pinpoint Test E
.