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.
- Problem symptoms may occur if the electric power control system's functions malfunction. Follow the HOW TO PROCEED WITH TROUBLESHOOTING procedures.
Audio function
SYMPTOM CHART
| Symptom | Suspected Area |
|---|---|
| Pressing power switch does not turn on system | Radio receiver power source circuit |
| AVC-LAN circuit | |
| Replace radio receiver | |
| Turning on light control switch does not activate nighttime illumination of radio receiver | Illumination for panel switch does not come on with tail switch on |
| Illumination circuit | |
| Replace radio receiver | |
| No sound can be heard from speakers | No sound can be heard from speakers |
| Speaker circuit | |
| Radio receiver power source circuit | |
| Stereo component amplifier power source circuit | |
| Replace stereo component amplifier | |
| Replace radio receiver | |
| Poor sound quality in all modes (low volume) | Poor sound quality in all modes (low volume) |
| Speaker circuit | |
| Sound signal circuit between radio receiver and stereo component amplifier | |
| Replace stereo component amplifier | |
| Replace radio receiver | |
| ASL (Automatic Sound Levelizer) does not function | Vehicle speed signal circuit |
| External device sound cannot be heard or sound quality is bad (stereo jack is used) | Sound signal circuit between radio receiver and stereo jack adapter |
| Radio receiver power source circuit | |
| Replace stereo jack adapter | |
| Replace radio receiver | |
| Noise occurs | Noise occurs |
| Radio broadcast cannot be received (bad reception) | Radio broadcast cannot be received (bad reception) |
| CD cannot be inserted or is ejected right after insertion | Cd cannot be inserted or is ejected right after insertion |
| Radio receiver power source circuit | |
| Replace radio receiver | |
| CD cannot be ejected | Cd cannot be ejected |
| Radio receiver power source circuit | |
| Replace radio receiver | |
| 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 | Cd sound skips |
| Turning on light control switch does not activate nighttime illumination of radio receiver | Illumination for panel switch does not come on with tail switch on |
| Illumination circuit | |
| Replace steering pad switch | |
| Audio system cannot be operated with steering pad switch | Steering pad switch circuit |
| Replace radio receiver |
Steering pad switch function
SYMPTOM CHART
| Symptom | Suspected Area |
|---|---|
| System cannot be operated by steering pad switch. | Steering pad switch circuit |
| Radio receiver | |
| Illumination for steering pad switch does not come on with light control switch on. | Illumination circuit |
| Steering pad switch |