Audio System: Troubleshooting: Notes

Symptom	Suspected area	Repairment
Pressing power switch does not turn on system	Audio head unit power source circuit	R-12
	LCD module	R-12
Panel switch does not function	Steering pad switch circuit	R-3
	Audio head unit front pcb ass'y	R-12
	Audio head unit power source circuit	R-12
No sound can be heard from speakers	Audio head unit power source circuit	R-12
	EXT. AMP I/F (For UVO)	R-4 R-6 R-8
	EXT. AMP power source (For UVO)	R-5
	Speaker ↔ H/U wiring	R-11
	Speaker input Waveform	R-12
Noise occurs	Proceed to "noise occurs"	R-14
Radio broadcast cannot be received	Proceed to "radio broadcast cannot be received (poor reception)"	R-13
Disc cannot be inserted or is ejected right after insertion	Audio head unit power source circuit	R-12
	Proceed to "Disc cannot be inserted or is ejected right after insertion"	R-19
Disc cannot be ejected.	Audio head unit power source circuit	R-12
CD sound skips	CD player	R-20
Illumination for radio receiver does not come on with light control switch on.	Illumination circuit	R-15
	Audio head unit display	R-15
	Audio head unit power source circuit	R-12
Display does not dim with light control switch turned on	Illumination circuit	R-16
Power does not turn off	Audio head unit	R-12
Bluetooth voice recognition faulty	Audio head unit	R-12
	Mic input	R-17
USB I/F error	Audio head unit	R-12
	Usb device faulty	R-18
	Multimedia terminal connection	R-17
iPod I/F error	Audio head unit	R-12
	Ipod faulty	R-18
	Multimedia terminal connection	R-17
AUX connection error	Audio head unit	R-12
	Multimedia terminal connection	R-17