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 audio unit is inoperative/does not operate correctly	Fuse(s) Circuitry Audio unit	GO to PINPOINT TEST A .
Poor reception	Antenna Suppression equipment Audio unit Antenna cable Ignition system Generator	GO to PINPOINT TEST B .
Continuous seek scan in AM/FM	Antenna Antenna cable Audio unit	GO to PINPOINT TEST C .
Poor quality/distorted sound/no sound from one or more speakers (not all speakers)	Speaker Circuitry Audio unit	GO to PINPOINT TEST D .
Poor quality/distorted sound/no sound from all speakers	Audio unit	GO to PINPOINT TEST E .
One or more audio control buttons are not functional in either audio, tape or CD mode	Audio unit	REMOVE the audio unit. REFER to AUDIO UNIT . SEND it to an authorized audio system repair facility. TEST the system for normal operation after the repair.
The steering wheel controls are inoperative/does not operate correctly	Circuitry Steering wheel controls Audio unit Clockspring	GO to PINPOINT TEST F .