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

Symptom Chart — Courtesy Lamps

NOTE: Use Rotunda 73 Digital Multimeter 105-R0051 or equivalent when performing the following pinpoint tests.

COURTESY LAMPS
ConditionPossible SourceAction
  • Courtesy Lamps Inoperative
  • Blown/open fuse.
  • Damaged switches.
  • Circuitry open/shorted.
  • Courtesy Lamps On Continuously
  • Damaged switches.
  • Circuitry shorted.
  • Dome Lamp Inoperative
  • Damaged switch.
  • Circuitry open/shorted.
  • Damaged bulb.
  • One or More Map Lamps Inoperative
  • Damaged switch.
  • Damaged bulb.
  • Circuitry open.
  • Engine Compartment Lamp Inoperative
  • Circuitry open/shorted.
  • Damaged bulb.
  • Damaged switch.
  • Glove Compartment Lamp Inoperative
  • Circuitry open/shorted.
  • Damaged bulb.
  • Damaged switch.
  • Glove Compartment Lamp On Continuously
  • Circuitry shorted.
  • Damaged switch.
  • Vanity Mirror Lamps Inoperative
  • Circuitry shorted/open.
  • Damaged switch.
  • Damaged fuse.
  • Vanity Mirror Lamps On Continuously
  • Circuitry shorted.
  • Damaged switch.