Symptom Table

WARNING: This page is about a different car, the 2006 Lincoln Navigator and 2006 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.

SYMPTOM TABLE

Condition	Possible Sources	Action
No communication with the vehicle security module	Circuity Vehicle security module	REFER to PINPOINT TEST A: NO COMMUNICATION WITH THE VEHICLE SECURITY MODULE .
No communication with the instrument cluster	Circuitry Instrument cluster	REFER to PINPOINT TEST A: NO COMMUNICATION WITH THE INSTRUMENT CLUSTER .
The interior lamps are inoperative	Fuse Circuitry Central junction box (CJB) Instrument cluster	GO to PINPOINT TEST A .
An individual interior lamp is inoperative	Circuitry Lamp	GO to PINPOINT TEST B .
The interior lamps stay on continuously	Circuitry Door ajar switch Instrument cluster Liftgate ajar switch Liftgate glass ajar switch Headlamp switch Vehicle security module Power liftgate module	GO to PINPOINT TEST C .
The interior lamps do not turn on with one door open	Circuitry Door ajar switch Vehicle security module Power liftgate module	GO to PINPOINT TEST D .
The illuminated entry is inoperative when using the remote transmitter/keypad	Remote keyless entry (RKE) transmitter Vehicle security module	GO to PINPOINT TEST E .
The demand lighting/battery saver is inoperative	Fuse Circuitry Instrument cluster Central junction box (CJB)	GO to PINPOINT TEST F .
An individual demand lamp is inoperative	Circuitry Lamp	GO to PINPOINT TEST G .
The battery saver does not deactivate after time-out	Circuitry CJB Instrument cluster	GO to PINPOINT TEST H .
The interior lamps are inoperative from the headlamp switch	Circuitry Headlamp switch Instrument cluster	GO to PINPOINT TEST I .