Problem Symptoms Table

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

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 SYMPTOM CHART

Symptom	Suspected Area
Pressing power switch does not turn on system	1. Radio receiver power source circuit
	2. AVC-LAN circuit
	3. 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
	2. Illumination circuit
	3. Radio receiver
No sound can be heard from speakers	1. No sound can be heard from speakers
	2. Speaker circuit
	3. Radio receiver power source circuit
	4. Stereo component amplifier power source circuit
	5. Stereo component amplifier
	6. Radio receiver
Poor sound quality in all modes (low volume)	1. Poor sound quality in all modes (Low reception)
	2. Speaker circuit
	3. Sound signal circuit between radio receiver and stereo component amplifier
	4. Stereo component amplifier
	5. Radio receiver
ASL (Automatic Sound Levelizer) does not function	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
	2. Radio receiver power source circuit
	3. Stereo jack adapter
	4. Radio receiver
Noise occurs	Noise occurs
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
	2. Radio receiver power source circuit
	3. Radio receiver
CD cannot be ejected	1. CD cannot be ejected
	2. Radio receiver power source circuit
	3. 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)
CD sound skips	CD sound skips
Noise occurs	Noise occurs

Steering Pad Switch Function:

PROBLEM SYMPTOM CHART

Symptom	Suspected Area
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
	2. Illumination circuit
	3. Steering pad switch
Audio system cannot be operated with steering pad switch	1. Steering pad switch circuit
Audio system cannot be operated with steering pad switch	2. Radio receiver
Steering pad switch cannot be illuminated at night.	1. Illumination circuit
Steering pad switch cannot be illuminated at night.	2. Radio receiver

"Bluetooth" Function (*1):

PROBLEM SYMPTOM CHART

Symptom	Suspected Area
Cellular phone registration failure, phone directory transfer failure.	Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure"
Cellular phone cannot send / receive.	1. Proceed to "Cellular Phone cannot Send / Receive"
	2. Steering pad switch circuit
	3. Radio receiver
The other callers voice cannot be heard, is too quiet, or distorted.	1. Proceed to "The Other Callers Voice cannot be Heard, is too Quiet, or Distorted"
	2. Radio receiver
	3. Stereo component amplifier
The other caller cannot hear your voice, or your voice is too quiet or distorted.	1. Proceed to "The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted"
	2. Proceed to "Microphone Circuit between Microphone and Radio Receiver"
	3. Microphone
	4. Radio receiver

*1: for Premium Sound Models