Audio System

AUDIO SYSTEM SYMPTOM CHART

Symptom	Possible cause	Reference page
Inoperative	Audio unit power circuit Audio unit	Power Supply and Ground Circuit Check [Audio Unit]
Inoperative	Audio unit power circuit Audio unit	Power Supply and Ground Circuit Check [Audio Unit]
Steering wheel audio control switch does not operate	Steering wheel audio control switch Audio unit	Steering Switch Circuit Check Power Supply and Ground Circuit Check [Audio Unit]
Steering wheel audio control switch does not operate	Steering wheel audio control switch Audio unit
All speakers do not sound	Speaker circuit shorted to ground Audio unit Audio unit power circuit Audio amplifier ON signal Audio amplifier power/ground circuit Audio amplifier	PREMIUM AUDIO SYSTEM: WIRING DIAGRAM [CREW CAB] Power Supply and Ground Circuit Check [Audio Unit] Power Supply and Ground Circuit Check [Audio Unit] AMP On Signal Circuit Check Power Supply and Ground Circuit Check [Audio AMP] Power Supply and Ground Circuit Check [Audio AMP]




One or several speakers do not sound	Front door speaker Front tweeter Rear door speaker Rear door tweeter Subwoofer	Front Door Speaker Circuit Check Front Tweeter Circuit Check Rear Door Speaker Circuit Check Rear Door Tweeter Circuit Check Subwoofer Circuit Check