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 | See page |
|---|---|---|
| Pressing power switch does not turn on system | Proceed to "Pressing Power Switch does not Turn on System" | |
| Proceed to "Radio Receiver Power Source Circuit" | ||
| Replace radio receiver assembly | ||
| No sound can be heard from speakers (audio is mute) | Proceed to "Radio Receiver Power Source Circuit" | |
| Proceed to "No Sound can be Heard from Speakers" | ||
| Proceed to "Speaker Circuit" | ||
| Replace radio receiver assembly | ||
| Sound quality is bad in all modes (volume is too low) | Proceed to "Poor Sound Quality in All Modes (Low Volume)" | |
| Proceed to "Speaker Circuit" | ||
| Replace radio receiver assembly | ||
| ASL does not function (for CD Player) | Proceed to "Speed Signal Circuit" | |
| External device sound cannot be heard or sound quality is bad (stereo jack is used) | Proceed to "Radio Receiver Power Source Circuit" | |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | ||
| Replace No. 1 stereo jack adapter assembly | ||
| Replace radio receiver assembly | ||
| Abnormal noise occurs | Proceed to "Noise Occurs" | |
| Replace radio receiver assembly | ||
| Radio broadcast cannot be received or poor reception | Proceed to "Radio Broadcast cannot be Received (Bad Reception)" | |
| CD cannot be inserted/played or CD is ejected right after insertion (for CD Player) | Proceed to "Radio Receiver Power Source Circuit" | |
| Proceed to "CD cannot be Inserted/ Played or CD is Ejected Right After Insertion" | ||
| CD cannot be ejected (for CD Player) | Proceed to "Radio Receiver Power Source Circuit" | |
| Proceed to "CD cannot be Ejected" | ||
| Sound quality is bad only when CD is played (volume is too low) (for CD Player) | Proceed to "Sound Quality is Bad Only when CD is Played (Volume is Too Low)" | |
| CD sound skips (for CD Player) | Proceed to "CD Sound Skips" | |
| Turning on light control switch does not activate nighttime illumination of radio receiver | Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON" | |
| Proceed to "Illumination Circuit" | ||
| Replace radio receiver assembly | ||
| Cassette tape cannot be inserted or played (for Cassette Tape Player) | Proceed to "Cassette Tape cannot be Inserted or Played" | |
| Cassette tape cannot be ejected (for Cassette Tape Player) | Proceed to "Cassette Tape cannot be Ejected" | |
| Sound quality is bad only when playing tape (for Cassette Tape Player) | Proceed to "Sound Quality is Bad Only when Playing Tape" | |
| Tape is tangled due to incorrect tape speed or auto-reverse malfunction (for Cassette Tape Player) | Proceed to "Tape is Tangled due to Incorrect Tape Speed or Auto-Reverse Malfunction" |
| Symptom | Suspected Area | See page |
|---|---|---|
| Audio system cannot be operated with steering pad switch | Proceed to "Steering Pad Switch Circuit" | |
| Replace radio receiver assembly | ||
| Steering pad switch cannot be illuminated at night | Proceed to "Illumination Circuit" | |
| Replace radio receiver assembly |
| Symptom | Suspected Area | See page |
|---|---|---|
| USB audio system sound cannot be heard or sound quality is bad (Stereo jack is used) | Proceed to "Radio Receiver Power Source Circuit" | |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | ||
| Replace No. 1 stereo jack adapter assembly | ||
| Replace radio receiver assembly | ||
| USB device or "iPod" is not recognized | Proceed to "USB Audio System Recognition/Play Error" | |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | ||
| Replace No. 1 stereo jack adapter assembly | ||
| Replace radio receiver assembly | ||
| Track information, such as track, artist and album names, is not displayed | Proceed to "USB Audio System Recognition/Play Error" | |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | ||
| Replace No. 1 stereo jack adapter assembly | ||
| Replace radio receiver assembly | ||
| USB device or "iPod" is recognized but cannot play, or can play but not in sorted order | Proceed to "USB Audio System Recognition/Play Error" | |
| Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | ||
| Replace No. 1 stereo jack adapter assembly | ||
| Replace radio receiver assembly |