Symptom Chart

SYMPTOM CHART

Condition	Possible Sources	Action
The control illumination is inoperative	Circuitry Headlamp switch Instrument cluster	GO to PINPOINT TEST A .
The instrument cluster illumination is inoperative	Circuitry Instrument cluster Headlamp switch	GO to PINPOINT TEST B .
The climate control illumination is inoperative	Circuitry Electronic automatic temperature control (EATC)	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 .
The power window switch(es) illumination source is inoperative - Expedition only	Circuitry Switch	GO to PINPOINT TEST F .
The steering wheel control switches illumination source is inoperative	Circuitry Steering wheel control switches Clockspring	GO to PINPOINT TEST G .