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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Audio function
AUDIO FUNCTION SUSPECTED AREA SPECIFICATION
| 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. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 4. AVC-LAN circuit | AVC-LAN Circuit | |
| 5. Radio receiver | RADIO RECEIVER | |
| 6. Multi-display | DIAGNOSIS DISPLAY DETAILED DESCRIPTION | |
| 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. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 4. Proceed to "No Sound can be Heard from Speakers" | PRESSING POWER SWITCH DOES NOT TURN ON SYSTEM | |
| 5. Stereo component amplifier power source circuit | STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT | |
| 6. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 7. Speaker circuit | SPEAKER CIRCUIT | |
| 8. Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | MUTE SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 9. Stereo component amplifier | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND STEREO COMPONENT AMPLIFIER | |
| 10. Radio receiver | RADIO RECEIVER | |
| 11. Multi-display | DIAGNOSIS DISPLAY DETAILED DESCRIPTION | |
| Sound quality is bad in all modes (Volume is too low). | 1. Proceed to "Poor Sound Quality in All Models (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 | |
| Auto sound levelizer does not function (9 speaker system). | Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter" | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN STEREO COMPONENT AMPLIFIER AND COMBINATION METER |
| Auto sound levelizer does not function (6 speaker system). | 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). | 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 COMPONENT AMPLIFIER | |
| 3. Stereo jack adapter | - | |
| 4. Radio receiver | RADIO RECEIVER | |
| Abnormal noise occurs. | 1. Proceed to "Noise occurs" | NOISE OCCURS |
| 2. Stereo component amplifier | SOUND SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND 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 RECEIVER |
| 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. | 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 sounds skips. | Proceed to "CD Sound Skips" | CD SOUND SKIPS |
| Radio receiver or multi-display cannot be illuminated at night. | Illumination circuit | ILLUMINATION CIRCUIT |
Steering pad switch function
STEERING PAD SWITCH FUNCTION SUSPECTED AREA SPECIFICATION
| 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 |
| 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. Multi-display | DIAGNOSIS DISPLAY DETAILED DESCRIPTION | |
| Cannot call in a certain place. | Proceed to "Cannot call in a Certain Place" | CANNOT CALL IN A CERTAIN PLACE |
| The other caller's voice cannot be heard, is too quiet, or distorted. | 1. 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 |
| 2. Multi-display | DIAGNOSIS DISPLAY DETAILED DESCRIPTION | |
| 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'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED |
| 2. Microphone circuit between overhead J/B and multi-display | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| 3. Microphone | - | |
| 4. Microphone amplifier | - | |
| 5. Multi-display | DIAGNOSIS DISPLAY DETAILED DESCRIPTION |