AUDIO AND VISUAL SYSTEM PROBLEM SYMPTOMS TABLE

Tech Tips

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Audio Function
Symptom	Suspected Area	See page
Pressing power switch does not turn on system. (w/o navigation system)	Proceed to "Pressing Power Switch does not Turn on System"	Click here
	Radio receiver power source circuit	Click here
	Integration control & panel assembly power source circuit	Click here
	AVC-LAN circuit	Click here
	Radio receiver	Click here
	Integration control & panel assembly	Click here
Pressing power switch does not turn on system. (w/ navigation system)	Proceed to "Pressing Power Switch does not Turn on System"	Click here
	Radio receiver power source circuit	Click here
	Multi-display power source circuit	Click here
	AVC-LAN circuit	Click here
	Radio receiver	Click here
	Multi-display	Click here
Panel switch does not function.	Steering pad switch circuit	Click here
	AVC-LAN circuit	Click here
	Radio receiver	Click here
No sound can be heard from speakers (audio is mute). (w/o navigation system)	AVC-LAN circuit	Click here
	Radio receiver power source circuit	Click here
	Integration control & panel assembly power source circuit	Click here
	Proceed to "No Sound can be Heard from Speakers"	Click here
	Stereo component amplifier power source circuit	Click here
	Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"	Click here
	Speaker circuit	Click here
	Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"	Click here
	Stereo component amplifier	Click here
	Radio receiver	Click here
	Integration control & panel assembly	Click here
No sound can be heard from speakers (audio is mute). (w/ navigation system)	AVC-LAN circuit	Click here
	Radio receiver power source circuit	Click here
	Multi-display power source circuit	Click here
	Proceed to "No Sound can be Heard from Speakers"	Click here
	Stereo component amplifier power source circuit	Click here
	Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"	Click here
	Speaker circuit	Click here
	Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"	Click here
	Stereo component amplifier	Click here
	Radio receiver	Click here
	Multi-display	Click here
Only DVD sound cannot be heard or sound quality is bad. (w/ DVD Player)	Proceed to "DVD Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"	Click here
	Stereo component amplifier	Click here
	Radio receiver	Click here
Sound quality is bad in all modes (volume is too low).	Proceed to "Poor Sound Quality in All Modes (Low Volume)"	Click here
	Speaker circuit	Click here
	Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"	Click here
	Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"	Click here
	Stereo component amplifier	Click here
	Radio receiver	Click here
ASL does not function.	Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"	Click here
External device sound cannot be heard or sound quality is bad (stereo jack is used).	Radio receiver power source circuit	Click here
	Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"	Click here
	Stereo jack adapter	Click here
	Radio receiver	Click here
Abnormal noise occurs.	Proceed to "Noise Occurs"	Click here
	Stereo component amplifier	Click here
	Radio receiver	Click here
Radio broadcast cannot be received or poor reception.	Proceed to "Radio Broadcast cannot be Received or Poor Reception"	Click here
CD cannot be inserted/played or CD is ejected right after insertion.	Radio receiver power source circuit	Click here
	Proceed to "CD cannot be Inserted/Played or CD is Ejected Right After Insertion"	Click here
CD cannot be ejected.	Radio receiver power source circuit	Click here
CD cannot be ejected.	Proceed to "CD cannot be Ejected"	Click here
Sound quality is bad only when CD is played (volume is too low).	Proceed to "Sound Quality is Bad Only when CD is Played (Volume is Too Low)"	Click here
CD sound skips.	Proceed to "CD Sound Skips"	Click here
Radio receiver or integration control & panel assembly cannot be illuminated at night.	Illumination circuit	Click here

Steering Pad Switch Function
Symptom	Suspected Area	See page
Audio system cannot be operated with steering pad switch.	Steering pad switch circuit	Click here
Audio system cannot be operated with steering pad switch.	Radio receiver	Click here
Steering pad switch cannot be illuminated at night.	Illumination circuit	Click here