Problem Symptoms Table
WARNING: This page is about a different car, the 2009 Toyota Corolla. 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 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
AUDIO FUNCTION PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Pressing power switch does not turn on system. | Proceed to "Pressing Power Switch does not Turn on System" | PRESSING POWER SWITCH DOES NOT TURN ON SYSTEM |
| Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | |
| AVC-LAN circuits | AVC-LAN CIRCUIT | |
| Radio receiver | REMOVAL | |
| Panel switch does not function. | Steering pad switch circuit*2 | STEERING PAD SWITCH CIRCUIT |
| AVC-LAN circuits | AVC-LAN CIRCUIT | |
| Radio receiver | REMOVAL | |
| No sound can be heard from speakers. (Audio is mute.) (for 8 speakers) | Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| Proceed to "No Sound can be Heard from Speakers" | NO SOUND CAN BE HEARD FROM SPEAKERS | |
| Stereo component amplifier power source circuit | STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT | |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| Speaker circuit | SPEAKER CIRCUIT | |
| Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| Stereo component amplifier | REMOVAL | |
| Radio receiver | REMOVAL | |
| No sound can be heard from speakers. (Audio is mute.) (except for 8 speakers) | Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| Proceed to "No Sound can be Heard from Speakers" | NO SOUND CAN BE HEARD FROM SPEAKERS | |
| Speaker circuit | SPEAKER CIRCUIT | |
| Radio receiver | REMOVAL | |
| Sound quality is bad in all modes. (Volume is too low.) (for 8 speakers) | Proceed to "Poor Sound Quality in All Modes (Low Volume)" | POOR SOUND QUALITY IN ALL MODES (LOW VOLUME) |
| Speaker circuit. | SPEAKER CIRCUIT | |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| Stereo component amplifier | REMOVAL | |
| Radio receiver | REMOVAL | |
| Sound quality is bad in all modes. (Volume is too low.) (except for 8 speakers) | Proceed to "Poor Sound Quality in All Modes (Low Volume)" | POOR SOUND QUALITY IN ALL MODES (LOW VOLUME) |
| Speaker circuit | SPEAKER CIRCUIT | |
| Radio receiver | REMOVAL | |
| ASL does not function, (for 8 speakers) | Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter" | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN STEREO COMPONENT AMPLIFIER AND COMBINATION METER |
| ASL does not function, (except for 8 speakers) | Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter" | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND COMBINATION METER |
| External device sound cannot be heard or sound quality is bad. (Stereo jack is used.) | Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO JACK ADAPTER | |
| Stereo jack adapter | REMOVAL | |
| Radio receiver | REMOVAL | |
| Abnormal noise occurs, (for 8 speakers) | Proceed to "Noise Occurs" | NOISE OCCURS |
| Stereo component amplifier | REMOVAL | |
| Radio receiver | REMOVAL | |
| Abnormal noise occurs, (except for 8 speakers) | Proceed to "Noise Occurs" | NOISE OCCURS |
| Radio receiver | REMOVAL | |
| Radio broadcast cannot be received or poor reception. | Proceed to "Radio Broadcast cannot be Received or Poor Reception" | RADIO BROADCAST CANNOT BE RECEIVED OR POOR RECEPTION |
| CD cannot be inserted / played or CD is ejected right after insertion. | Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion" | CD CANNOT BE INSERTED / PLAYED OR CD IS EJECTED RIGHT AFTER INSERTION | |
| CD cannot be ejected. | Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT |
| Proceed to "CD cannot be Ejected" | CD CANNOT BE EJECTED | |
| 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)" | SOUND QUALITY IS BAD ONLY WHEN CD IS PLAYED (VOLUME IS TOO LOW) |
| CD sound skips. | Proceed to "CD Sound Skips" | CD SOUND SKIPS |
| Radio receiver cannot be illuminated at night. | Illumination circuit | ILLUMINATION CIRCUIT |
| Radio receiver | REMOVAL |
Steering Pad Switch Function*2
STEERING PAD SWITCH FUNCTION PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Audio system cannot be operated with steering pad switch. | Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| Radio receiver | REMOVAL | |
| Steering pad switch cannot be illuminated at night. | Illumination circuit | ILLUMINATION CIRCUIT |
| Radio receiver | REMOVAL |
"Bluetooth" Function*1
BLUETOOTH FUNCTION PROBLEM SYMPTOMS CHART
| 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. | Proceed to "Cellular Phone cannot Send / Receive" | CELLULAR PHONE CANNOT SEND/RECEIVE |
| Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| Radio receiver | REMOVAL | |
| The other caller's voice cannot be heard, is too quiet, or distorted. | Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted" | THE OTHER CALLER'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED |
| Proceed to "Cellular Phone Voice Circuit between Radio Receiver and Stereo Component Amplifier" | CELLULAR PHONE VOICE CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| Radio receiver | REMOVAL | |
| Stereo component amplifier | REMOVAL | |
| The other caller cannot hear your voice, or your voice is too quiet or distorted. | 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 |
| Proceed to "Microphone Circuit between Microphone and Radio Receiver" | MICROPHONE CIRCUIT BETWEEN MICROPHONE AND RADIO RECEIVER | |
| Microphone | REMOVAL | |
| Radio receiver | REMOVAL |
- *1: for 8 Speakers
- *2: w/ Steering Pad Switch