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 as necessary.
AUDIO FUNCTION:
| Symptom | Suspected Area | See |
|---|---|---|
| Pressing power switch does not turn on system | 1. Radio receiver power source circuit | Refer to Radio Receiver Power Source Circuit |
| 2. AVC-LAN circuit*1 | Refer to AVC-LAN Circuit | |
| 3. Radio receiver | Refer to REMOVAL | |
| 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 | Refer to Illumination for Panel Switch does not Come on with Tail Switch ON |
| 2. Illumination circuit | Refer to Illumination Circuit | |
| 3. Radio receiver | Refer to REMOVAL | |
| No sound can be heard from speakers | 1. No sound can be heard from speakers | Refer to No Sound can be Heard from Speakers |
| 2. Speaker circuit | Refer to Speaker Circuit | |
| 3. Radio receiver power source circuit | Refer to Radio Receiver Power Source Circuit | |
| 4. Stereo component amplifier power source circuit*1 | Refer to Stereo Component Amplifier Power Source Circuit | |
| 5. Stereo component amplifier*1 | Refer to REMOVAL | |
| 6. Radio receiver | Refer to REMOVAL | |
| Poor sound quality in all modes (low volume) | 1. Poor sound quality in all modes (Low reception) | Refer to Poor Sound Quality in All Modes (Low Volume) |
| 2. Speaker circuit | Refer to Speaker Circuit | |
| 3. Sound signal circuit between radio receiver and stereo component amplifier*1 | Refer to Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier | |
| 4. Stereo component amplifier*1 | Refer to REMOVAL | |
| 5. Radio receiver | Refer to REMOVAL | |
| ASL (Automatic Sound Levelizer) does not function | Speed signal circuit | Refer to 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 | Refer to Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter |
| 2. Radio receiver power source circuit | Refer to Radio Receiver Power Source Circuit | |
| 3. Stereo jack adapter | Refer to REMOVAL | |
| 4. Radio receiver | Refer to REMOVAL | |
| Noise occurs | Noise occurs | Refer to Noise Occurs |
| Radio broadcast cannot be received (bad reception) | Radio broadcast cannot be received (Bad reception) | Refer to 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 | Refer to CD cannot be Inserted or is Ejected Right After Insertion |
| 2. Radio receiver power source circuit | Refer to Radio Receiver Power Source Circuit | |
| 3. Radio receiver | Refer to REMOVAL | |
| CD cannot be ejected | 1. CD cannot be ejected | Refer to CD cannot be Ejected |
| 2. Radio receiver power source circuit | Refer to Radio Receiver Power Source Circuit | |
| 3. Radio receiver | Refer to REMOVAL | |
| 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) | Refer to Sound Quality is Bad Only when CD is Played (Volume is Too Low) |
| CD sound skips | CD sound skips | Refer to CD Sound Skips |
| Noise occurs | Noise occurs | Refer to Noise Occurs |
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 | Refer to Illumination for Panel Switch does not Come on with Tail Switch ON |
| 2. Illumination circuit | Refer to Illumination Circuit | |
| 3. Steering pad switch | Refer to REMOVAL | |
| Audio system cannot be operated with steering pad switch | 1. Steering pad switch circuit | Refer to Steering Pad Switch Circuit |
| 2. Radio receiver | Refer to REMOVAL | |
| Steering pad switch cannot be illuminated at night. | 1. Illumination circuit | Refer to Illumination Circuit |
| 2. Radio receiver | Refer to REMOVAL |
"BLUETOOTH" FUNCTION (*1):
| Symptom | Suspected Area | See |
|---|---|---|
| Cellular phone registration failure, phone directory transfer failure. | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | Refer to Cellular Phone Registration Failure, Phone Directory Transfer Failure |
| Cellular phone cannot send / receive. | 1. Proceed to "Cellular Phone cannot Send / Receive" | Refer to Cellular Phone cannot Send/Receive |
| 2. Steering pad switch circuit | Refer to Steering Pad Switch Circuit | |
| 3. Radio receiver | Refer to 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" | Refer to The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted |
| 2. Radio receiver | Refer to REMOVAL | |
| 3. Stereo component amplifier | Refer to 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" | Refer 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" | Refer to Microphone Circuit between Microphone and Radio Receiver | |
| 3. Microphone | Refer to REMOVAL | |
| 4. Radio receiver | Refer to REMOVAL |
*1: for Separate Type Amplifier System