LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2004 >> Excursion 6.0 P, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1577 (Interior Lighting System) >> Diagnostic Tests >> Interior Lighting >> Symptom Chart
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Symptom Chart

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Only vehicles equipped with RKE will have a vehicle security module (VSM).
Symptom Chart

Condition Possible Sources Action
  • The interior lamps are inoperative
  • Fuse
  • Circuitry
  • Dimmer control switch
  • Instrument cluster
  • An individual interior lamp is inoperative
  • Circuitry
  • Interior lamp
  • The interior lamps stay on continuously
  • Circuitry
  • Door ajar switch
  • Dimmer control switch
  • Instrument cluster
  • The illuminated entry is inoperative from one/both door handles
  • VSM
  • Door ajar switches
  • Circuitry
  • The illuminated entry is inoperative when using the remote transmitter/keypad
  • VSM
  • Circuitry
  • Instrument cluster
  • The demand lighting is inoperative
  • Fuse
  • Circuitry
  • Instrument cluster
  • Central junction box (CJB)
  • All battery saver components do not operate
  • Fuse
  • Circuitry
  • Instrument cluster
  • CJB
  • An individual demand lamp is inoperative
  • Circuitry
  • Interior lamp
  • The battery saver does not deactivate after time-out
  • Circuitry
  • Instrument cluster
  • CJB
  • The interior lamps do not turn on with one door open
  • Circuitry
  • Door ajar switch
  • VSM
  • Instrument cluster
  • An individual puddle lamp is inoperative
  • Circuitry
  • Exterior mirror