Problem Symptoms Table
WARNING: This page is about a different car, the 2007 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 SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| 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. Radio receiver | 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. Radio receiver | AV-171 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. Stereo component amplifier | AV-177 STEREO COMPONENT AMPLIFIER |
|
| 6. Radio receiver | 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 | AV-118 SPEAKER CIRCUIT |
|
| 3. Sound signal circuit between radio receiver and stereo component amplifier | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 4. Stereo component amplifier | STEREO COMPONENT AMPLIFIER | |
| 5. Radio receiver | 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 JACK ADAPTER |
| 2. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | |
| 3. Stereo jack adapter | - | |
| 4. Radio receiver | 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. Radio receiver | 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. Radio receiver | 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:
STEERING PAD SWITCH FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| 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. Steering pad switch | REMOVAL | |
| Audio system cannot be operated with steering pad switch | 1. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| 2. Radio receiver | REMOVAL | |
| Steering pad switch cannot be illuminated at night. | 1. Illumination circuit | ILLUMINATION CIRCUIT |
| 2. Radio receiver | REMOVAL |
"Bluetooth" Function (*1):
DIAGNOSIS FOR BLUETOOTH FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Cellular phone registration failure, phone directory transfer failure. | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE |
| Cellular phone cannot send / receive. | 1. Proceed to "Cellular Phone cannot Send / Receive" | CELLULAR PHONE CANNOT SEND / RECEIVE |
| 2. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| 3. Radio receiver | REMOVAL | |
| 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" | THE OTHER CALLER'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED |
| 2. Radio receiver | REMOVAL | |
| 3. Stereo component amplifier | REMOVAL | |
| 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" | 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" | MICROPHONE CIRCUIT BETWEEN MICROPHONE AND RADIO RECEIVER | |
| 3. Microphone | MICROPHONE | |
| 4. Radio receiver | REMOVAL | |
| *1: for Premium Sound Models | ||