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Home >> Ford >> 2004 >> Thunderbird >> Repair and Diagnosis >> External Pages >> Different car >> Section 242 (Interior Lighting) >> Diagnosis And Testing >> Interior Lighting >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2003 Ford Thunderbird. However, it is still accessible from the selected car via links, so may be relevant.
Symptom Chart

Condition Possible Sources Action
No communication with the front electronic module (FEM)
  • Central junction box (CJB) fuses:
    • 33 (10A).
    • 20 (10A).
    • 30 (5A).
  • Circuitry.
  • FEM.
 REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the rear electronic module (REM)
  • Battery junction box (BJB) fuses:
    • 12 (5A).
    • 1 (15A).
  • Circuitry.
  • REM.
 REFER to MODULE COMMUNICATIONS NETWORK .
No communication with the instrument cluster
  • Circuitry.
  • Instrument cluster
 REFER to INFORMATION, GAUGES & WARNING DEVICES .
The interior lamps are inoperative
  • CJB fuse 31 (10A)
  • Circuits.
  • FEM.
 Go To PINPOINT TEST A  .
An individual interior lamp is inoperative
  • CJB.
  • Lamps.
  • Switch(es).
  • Circuitry.
 Go To PINPOINT TEST B  .
The interior lamps stay on continuously
  • Door ajar switches.
  • CJB.
  • Circuits.
  • Map/dome lamp switches.
  • FEM.
 Go To PINPOINT TEST C  .
The LH map lamp, RH map lamp stays on continuously
  • Switches.
  • Circuits.
 Go To PINPOINT TEST D  .
The interior lamps do not turn on with one door open
  • Door ajar switches.
  • Circuits.
  • FEM.
 Go To PINPOINT TEST E  .
The glove compartment lamp is inoperative
  • Circuitry.
  • Lamps.
  • Switches.
 Go To PINPOINT TEST F  .
The luggage compartment lid lamp stays on continuously
  • Circuitry.
  • Luggage compartment lid ajar switch.
  • REM.
 Go To PINPOINT TEST G  .
The luggage compartment lid lamp inoperative with luggage compartment lid open
  • Circuitry.
  • Lamp.
  • Luggage compartment lid ajar switch.
  • REM.
 Go To PINPOINT TEST H  .
The demand lighting is inoperative
  • Circuitry.
  • Lamp.
  • Instrument panel dimmer switch.
  • Instrument cluster.
 Go To PINPOINT TEST I  .
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