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Home >> Mercury >> 2004 >> Marauder >> Repair and Diagnosis >> External Pages >> Different car >> Section 266 (Interior Lighting System) >> Diagnosis And Testing >> Interior Lighting >> Symptom Chart
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Symptom Chart

WARNING: This page is about a different car, the 2003 Mercury Marauder, 2003 Mercury Grand Marquis, and 2003 Ford Crown Victoria. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM CHART

Condition Possible Sources Action
The interior lamps are inoperative
  • Central junction box (CJB) fuse 23 (15A).
  • Circuitry.
  • Dimmer switch.
  • Lamp switch.
  • Lighting control module (LCM).
 Go To PINPOINT TEST A  .
An individual interior lamp is inoperative
  • Bulb.
  • Circuitry.
 Go To PINPOINT TEST B  .
The interior lamps stay on continuously
  • Switch.
  • Circuitry.
  • Lighting control module (LCM).
 Go To PINPOINT TEST C  .
The demand lighting is inoperative
  • Switch.
  • Circuitry.
  • Lighting control module (LCM).
 Go To PINPOINT TEST D  .
The individual demand lighting lamp is inoperative
  • Switch.
  • Bulb.
  • Circuitry.
 Go To PINPOINT TEST E  .
The illuminated entry is inoperative when using the remote transmitter/keypad
  • Central junction box (CJB) fuse 23 (15A).
  • Door handle switch.
  • Bulb.
  • Circuitry.
  • Lighting control module (LCM).
 REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
The illuminated entry is inoperative when using the keypad - keypad backlighting is inoperative
  • Circuitry.
  • Lighting control module (LCM).
  • Keyless entry keypad.
 REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS .
No communication with the LCM module
  • LCM.
  • Circuitry.
 REFER to MULTIFUNCTION ELECTRONIC MODULE .
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