Problem Symptoms Table
HINT:
- Before inspecting the suspected areas listed in the table below, check the fuse and relay.
- Before inspecting the suspected areas listed in the table below, check for DTCs.
- Methods used to verify the cause of the problem are listed in order of probability in the suspected area column.
Audio Function:
AUDIO FUNCTION PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See | ||
|---|---|---|---|---|
| Pressing power switch does not turn on system. | 1. Proceed to "Pressing Power Switch does not Turn on System" | PRESSING POWER SWITCH DOES NOT TURN ON SYSTEM | ||
| 2. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | |||
| 3. AVC-LAN circuit | AVC-LAN Circuit | |||
| 4. Radio receiver | RADIO RECEIVER | |||
| Panel switch does not function. | 1. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | ||
| 2. AVC-LAN circuit | AVC-LAN Circuit | |||
| 3. Radio receiver | RADIO RECEIVER | |||
| No sound can be heard from speakers (audio is mute). | 1. AVC-LAN circuit | AVC-LAN Circuit | ||
| 2. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | |||
| 3. Proceed to "No Sound can be Heard from Speakers" | NO SOUND CAN BE HEARD FROM SPEAKERS | |||
| 4. Stereo component amplifier power source circuit | STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT | |||
| 5. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |||
| 6. Speaker circuit | SPEAKER CIRCUIT | |||
| 7. Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |||
| 8. Stereo component amplifier | STEREO COMPONENT AMPLIFIER | |||
| 9. Radio receiver | RADIO RECEIVER | |||
| Only DVD sound cannot be heard or sound quality is bad. (with DVD Changer) | 1. Proceed to "DVD Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | DVD SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | ||
| 2. Stereo component amplifier | STEREO COMPONENT AMPLIFIER | |||
| 3. Radio receiver | RADIO RECEIVER | |||
| Sound quality is bad in all modes. (Volume is too low.) | 1. Proceed to "Poor Sound Quality in All Modes (Low Volume)" | POOR SOUND QUALITY IN ALL MODES (LOW VOLUME) | ||
| 2. Speaker circuit | SPEAKER CIRCUIT | |||
| 3. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |||
| 4. Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |||
| 5. Stereo component amplifier | STEREO COMPONENT AMPLIFIER | |||
| 6. Radio receiver | RADIO RECEIVER | |||
| ASL does not function. | Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter" | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN STEREO COMPONENT AMPLIFIER AND COMBINATION METER | ||
| External device sound cannot be heard or sound quality is bad. (Stereo jack is used.) | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | ||
| 2. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO JACK ADAPTER | |||
| 3. Stereo jack adapter (Audio terminal) | AUDIO TERMINAL | |||
| 4. Radio receiver | RADIO RECEIVER | |||
| Abnormal noise occurs. | 1. Proceed to "Noise occurs" | NOISE OCCURS | ||
| 2. Stereo component amplifier | STEREO COMPONENT AMPLIFIER | |||
| 3. Radio receiver | RADIO RECEIVER | |||
| 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. | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | ||
| 2. 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. | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | ||
| 2. 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 dimmed at night. | 1. Dimmer signal circuit | DIMMER SIGNAL CIRCUIT | ||
| 2. Radio receiver | RADIO RECEIVER | |||
| Radio receiver cannot be illuminated at night. | Illumination circuit | ILLUMINATION CIRCUIT | ||
| Cassette tape cannot be inserted or played. ((1)) | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | ||
| 2. "Cassette Tape cannot be Inserted or Played" | CASSETTE TAPE CANNOT BE INSERTED OR PLAYED | |||
| Cassette tape cannot be ejected. ((1)) | 1. Radio receiver power source circuit | RADIO RECEIVER POWER SOURCE CIRCUIT | ||
| 2. "Cassette Tape cannot be Ejected" | CASSETTE TAPE CANNOT BE EJECTED | |||
| Sound quality is bad only when playing tape. ((1)) | "Sound Quality is Bad Only when Playing Tape" | SOUND QUALITY IS BAD ONLY WHEN PLAYING TAPE | ||
| Tape is tangled due to incorrect tape speed or auto-reverse malfunction. ((1)) | "Tape is Tangled due to Incorrect Tape Speed or Auto-Reverse Malfunction" | TAPE IS TANGLED DUE TO INCORRECT TAPE SPEED OR AUTO-REVERSE MALFUNCTION | ||
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Steering Pad Switch Function:
STEERING PAD SWITCH FUNCTION PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Audio system cannot be operated with steering pad switch. | 1. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| 2. Radio receiver | RADIO RECEIVER | |
| Steering pad switch cannot be illuminated at night. | Illumination circuit | ILLUMINATION CIRCUIT |
"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. | 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 | 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" | THE OTHER CALLER'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED |
| 2. Proceed to "Cellular Phone Voice Circuit between Radio Receiver and Stereo Component Amplifier" | CELLULAR PHONE VOICE CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 3. Radio receiver | RADIO RECEIVER | |
| 4. Stereo component amplifier | 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" | 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 | RADIO RECEIVER | |
| *1: for Radio Receiver with Built-in "Bluetooth" Handsfree Function | ||