Tech Tips
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.
| Symptom | Suspected Area | Link |
|---|---|---|
| Panel switches do not function | Proceed to "Panel Switches do not Function" | |
| Proceed to "Radio Receiver Power Source Circuit" | ||
| Radio receiver assembly | ||
| Illumination for panel switches does not come on with tail switch on | Proceed to "Illumination Circuit" |
| Symptom | Suspected Area | Link |
|---|---|---|
| System cannot be operated by steering pad switch | Proceed to "Panel Switches do not Function" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Radio receiver assembly | ||
| Illumination for steering pad switch does not come on with tail switch on | Proceed to "Illumination Circuit" |
| Symptom | Suspected Area | Link |
|---|---|---|
| No sound can be heard from speakers | Proceed to "No Sound can be Heard from Speakers" | |
| Proceed to "Speaker Circuit" | ||
| Radio receiver assembly | ||
| Sound quality is bad in all modes (volume is too low) | Check that the ASL function is off | - |
| Proceed to "Poor Sound Quality in All Modes (Low Volume)" | ||
| Proceed to "Speaker Circuit" | ||
| Radio receiver assembly | ||
| ASL does not function | Check that the ASL function is on | - |
| Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter" | ||
| Radio receiver assembly | ||
| Abnormal noise occurs | Proceed to "Noise Occurs" | |
| Radio receiver assembly |
| Symptom | Suspected Area | Link |
|---|---|---|
| Radio broadcast cannot be received or poor reception | Proceed to "Radio Broadcast cannot be Received or Poor Reception" |
| Symptom | Suspected Area | Link |
|---|---|---|
| CD cannot be inserted/played or CD is ejected right after insertion | Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion" | |
| CD cannot be ejected | Proceed to "CD cannot be Ejected" | |
| CD sound skips | Proceed to "CD Sound Skips" | |
| 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)" |
| Symptom | Suspected Area | Link |
|---|---|---|
| External device sound cannot be heard or sound quality is bad (stereo jack is used) | Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | |
| No. 1 stereo jack adapter assembly | ||
| Radio receiver assembly |
| Symptom | Suspected Area | Link |
|---|---|---|
| USB audio system sound cannot be heard or sound quality is bad (USB connector is used) | Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | |
| No. 1 stereo jack adapter assembly | ||
| Radio receiver assembly | ||
| USB device or "iPod" is not recognized | Proceed to "USB Audio System Recognition/Play Error" | |
| No. 1 stereo jack adapter assembly | ||
| Radio receiver assembly | ||
| Track information such as track, artist and album names is not displayed | Proceed to "USB Audio System Recognition/Play Error" | |
| No. 1 stereo jack adapter assembly | ||
| Radio receiver assembly | ||
| USB device or "iPod" is recognized but cannot play nor play in a sorted order | Proceed to "USB Audio System Recognition/Play Error" | |
| No. 1 stereo jack adapter assembly | ||
| Radio receiver assembly | ||
| "iPod" battery cannot be charged | Proceed to "USB Audio System Recognition/Play Error" | |
| No. 1 stereo jack adapter assembly | ||
| Radio receiver assembly |