Symptom Chart

WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. 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	Fuse(s) Circuitry Instrument cluster	GO to PINPOINT TEST A .
An individual interior lamp is inoperative	Circuitry Interior lamp	GO to PINPOINT TEST B .
The interior lamps stay on continuously	Circuitry Instrument cluster Door ajar switch Headlamp switch Vehicle security module	GO to PINPOINT TEST C .
The interior lamps do not turn on with one door open	Circuitry Door ajar switch Instrument cluster Vehicle security module	GO to PINPOINT TEST J .
The illuminated entry is inoperative when using the remote transmitter/keypad	Remote keyless entry (RKE) system Vehicle security module	LOCK and UNLOCK the doors using the RKE transmitter and keyless entry keypad. If the doors do not unlock, REFER to HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS to diagnose the RKE system. If the doors unlock, INSTALL a new vehicle security module. REFER to MULTIFUNCTION ELECTRONIC MODULES . TEST the system for normal operation.
The demand lighting is inoperative	Fuse Circuitry Instrument cluster	GO to PINPOINT TEST D .
The individual demand lamp is inoperative	Circuitry Lamp assembly	GO to PINPOINT TEST E .
The battery saver does not deactivate after time-out	Circuitry Instrument cluster	GO to PINPOINT TEST F .
All battery saver components do not operate	Fuse Circuitry Instrument cluster	GO to PINPOINT TEST G .
The running board lamps are inoperative/do not operate correctly (other interior lamps operate)	Circuitry Running board lamp	GO to PINPOINT TEST H .
The interior lamps are inoperative from the headlamp switch	Circuitry Headlamp switch	GO to PINPOINT TEST I .