Symptom Chart

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 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 control illumination is inoperative	Circuitry Headlamp switch	GO to PINPOINT TEST A .
The instrument cluster illumination is inoperative	Circuitry Instrument cluster	GO to PINPOINT TEST B .
The climate control illumination is inoperative	Circuitry Climate control assembly	GO to PINPOINT TEST C .
The audio system illumination is inoperative	Circuitry Audio unit	GO to PINPOINT TEST D .
A single illumination source is inoperative	Circuitry Switch	GO to PINPOINT TEST E .
A single illumination source is inoperative - steering wheel switches	Circuitry Steering wheel switch(es) Air bag sliding contact	GO to PINPOINT TEST F .
A single illumination source is inoperative - door lock control switches	Circuitry Door lock switch	GO to PINPOINT TEST G .
A single illumination source is inoperative - window control switches	Circuitry Accessory delay relay Battery saver relay Window control switch Instrument cluster	GO to PINPOINT TEST H .
The instrument panel illumination does not dim	Headlamp switch	INSTALL a new headlamp switch. REFER to EXTERIOR LIGHTING .