Problem Symptoms Table

HINT:

Use the table below to help determine the cause of the problem symptom. 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.

Audio function

PROBLEM SYMPTOMS (AUDIO FUNCTION)

Symptom	Suspected area	Refer to
Pressing power switch does not turn on system	1. Radio receiver power source circuit	RADIO RECEIVER POWER SOURCE CIRCUIT
	2. AVC-LAN circuit	AVC-LAN Circuit
	3. Replace radio receiver	-
Turning on light control switch does not activate nighttime illumination of radio receiver	1. Illumination for panel switch does not come on with tail switch on	ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON
	2. Illumination circuit	ILLUMINATION CIRCUIT
	3. Replace radio receiver	-
No sound can be heard from speakers	1. No sound can be heard from speakers	NO SOUND CAN BE HEARD FROM SPEAKERS
	2. Speaker circuit	SPEAKER CIRCUIT
	3. Radio receiver power source circuit	RADIO RECEIVER POWER SOURCE CIRCUIT
	4. Stereo component amplifier power source circuit	STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT
	5. Replace stereo component amplifier	-
	6. Replace radio receiver	-
Poor sound quality in all modes (low volume)	1. Poor sound quality in all modes (Low reception)	POOR SOUND QUALITY IN ALL MODES (LOW VOLUME)
	2. Speaker circuit	SPEAKER CIRCUIT
	3. Sound signal circuit between radio receiver and stereo component amplifier*	SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER
	4. Replace stereo component amplifier*	-
	5. Replace radio receiver	-
ASL (Automatic Sound Levelizer) does not function	Speed signal circuit	VEHICLE SPEED SIGNAL CIRCUIT
External device sound cannot be heard or sound quality is bad (stereo jack is used)	1. Sound signal circuit between radio receiver and stereo jack adapter	SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER
	2. Radio receiver power source circuit	RADIO RECEIVER POWER SOURCE CIRCUIT
	3. Replace stereo jack adapter	-
	4. Replace radio receiver	-
Noise occurs	Noise occurs	NOISE OCCURS
Radio broadcast cannot be received (bad reception)	Radio broadcast cannot be received (Bad reception)	RADIO BROADCAST CANNOT BE RECEIVED (BAD RECEPTION)
CD cannot be inserted or is ejected right after insertion	1. CD cannot be inserted or is ejected right after insertion	CD CANNOT BE INSERTED OR IS EJECTED RIGHT AFTER INSERTION
	2. Radio receiver power source circuit	RADIO RECEIVER POWER SOURCE CIRCUIT
	3. Replace radio receiver	-
CD cannot be ejected	1. CD cannot be ejected	CD CANNOT BE EJECTED
	2. Radio receiver power source circuit	RADIO RECEIVER POWER SOURCE CIRCUIT
	3. Replace radio receiver	-
Sound quality is bad only when CD is played (volume is too low)	Sound quality is bad only when CD is played (Volume is too low)	SOUND QUALITY IS BAD ONLY WHEN CD IS PLAYED (VOLUME IS TOO LOW)
CD sound skips	CD sound skips	CD SOUND SKIPS
Noise occurs	Noise occurs	NOISE OCCURS

Steering pad switch function

PROBLEM SYMPTOMS (STEERING PAD SWITCH FUNCTION)

Symptom	Suspected area	Refer to
Turning on light control switch does not activate nighttime illumination of radio receiver	1. Illumination for panel switch does not come on with tail switch on	ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON
	2. Illumination circuit	ILLUMINATION CIRCUIT
	3. Replace steering pad switch	-
Audio system cannot be operated with steering pad switch	1. Steering pad switch circuit	STEERING PAD SWITCH CIRCUIT
Audio system cannot be operated with steering pad switch	2. Replace radio receiver	-