Audio System

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SYMPTOM CHART

Symptom	Possible cause	Reference
Inoperative	AV control unit power and ground circuit AV control unit	AV CONTROL UNIT AV CONTROL UNIT
Steering switch does not operate	Steering switch AV control unit	STEERING SWITCH AV CONTROL UNIT
All speakers do not sound	AV control unit power and ground circuit BOSE speaker amp. ON signal BOSE speaker amp. power and ground circuit BOSE speaker amp. AV control unit	AV CONTROL UNIT AMP ON SIGNAL CIRCUIT BOSE SPEAKER AMP : DIAGNOSIS PROCEDURE BOSE AMP AV CONTROL UNIT
One or several speakers do not sound	Front door speaker Tweeter Center speaker Rear door speaker Rear subwoofer	FRONT DOOR SPEAKER TWEETER CENTER SPEAKER REAR DOOR SPEAKER SUBWOOFER