Problem Symptoms Table
WARNING: This page is about a different car, the 2007 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Inspect the fuse and relay before confirming the suspected area as shown in RADIO RECEIVER ASSEMBLY TROUBLESHOOTING .
Radio receiver assembly
RADIO RECEIVER ASSEMBLY TROUBLESHOOTING
| Symptom | Suspected area | Reference |
|---|---|---|
| Pressing power switch does not start system | 1. Power source circuit (radio receiver assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Radio receiver assembly | RADIO RECEIVER | |
| Radio receiver cannot be dimmed at night | 1. Illumination circuit | ILLUMINATION CIRCUIT |
| 2. Radio receiver assembly | RADIO RECEIVER | |
| No sound can be heard (Separate amplifier) | 1. Power source circuit (radio receiver assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Power source circuit (stereo component amplifier assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT | |
| 3. AMP sound signal circuit | AMP SOUND SIGNAL CIRCUIT | |
| 4. Speaker circuit | SPEAKER CIRCUIT | |
| 5. AVC-LAN circuit | AVC-LAN Circuit | |
| 6. AMP mute signal circuit | AMP MUTE SIGNAL CIRCUIT (FROM RADIO RECEIVER ASSEMBLY) | |
| 7. Stereo component amplifier assembly | STEREO COMPONENT AMPLIFIER POWER SOURCE CIRCUIT | |
| 8. Radio receiver assembly | RADIO RECEIVER | |
| No sound can be heard (Build-in amplifier) | 1. Power source circuit (radio receiver assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Speaker circuit | SPEAKER CIRCUIT | |
| 3. Radio receiver assembly | RADIO RECEIVER | |
| Sound quality is bad in all modes (volume is too low) (Separate amplifier) | 1. Power source circuit (radio receiver assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Power source circuit (stereo component amplifier assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT | |
| 3. Speaker circuit | SPEAKER CIRCUIT | |
| 4. AMP sound signal circuit | AMP SOUND SIGNAL CIRCUIT | |
| 5. Sound quality is bad in all modes (volume is too low) | SOUND QUALITY IS BAD IN ALL MODES | |
| Sound quality is bad in all modes (volume is too low) Built-in amplifier | 1. Power source circuit (radio receiver assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. Speaker circuit | SPEAKER CIRCUIT | |
| 3. Sound quality is bad in all modes (volume is too low) | SOUND QUALITY IS BAD IN ALL MODES | |
| 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 immediately after insertion | 1. Power source circuit (radio receiver assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. CD cannot be inserted or is ejected immediately after insertion | CD cannot be Inserted or is Ejected Right After Insertion | |
| CD cannot be eject | 1. Power source circuit (radio receiver assembly) | RADIO RECEIVER POWER SOURCE CIRCUIT |
| 2. CD cannot be ejected | CD cannot be Ejected | |
| Sound quality is bad only when playing CD (volume is too low) | Sound quality is bad only when playing CD (volume is too low) | SOUND QUALITY IS BAD IN ALL MODES |
| CD sound skips | CD sound skips | CD SOUND SKIPS |
Steering pad switch
STEERING PAD SWITCH TROUBLESHOOTING
| Symptom | Suspected area | Reference |
|---|---|---|
| Audio system cannot be operated with steering pad switch | 1. Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| 2. Radio receiver assembly | RADIO RECEIVER |