Lexus IS250 IS220d GSE20 ALE20 - AUDIO / VISUAL
AUDIO AND VISUAL SYSTEM - PROBLEM SYMPTOMS TABLE
- HINT:
Before inspecting the suspected areas listed in the table below, check the fuse and relay.
Before inspecting the suspected areas listed in the table below, check for DTCs.
Methods used to verify the cause of the problem are listed in order of probability in the suspected area column.
| Symptom | Suspected area | See page |
| Pressing power switch does not turn on system. (without navigation system) | 1. Proceed to "Pressing Power Switch does not Turn on System" | |
| 2. Radio receiver power source circuit | ||
| 3. Integration control & panel assembly power source circuit | ||
| 4. AVC-LAN circuit | ||
| 5. Radio receiver | ||
| 6. Integration control & panel assembly | ||
| Pressing power switch does not turn on system. (with navigation system) | 1. Proceed to "Pressing Power Switch does not Turn on System" | |
| 2. Radio receiver power source circuit | ||
| 3. Multi-display power source circuit | ||
| 4. AVC-LAN circuit | ||
| 5. Radio receiver | ||
| 6. Multi-display | ||
| Panel switch does not function. | 1. Steering pad switch circuit | |
| 2. AVC-LAN circuit | ||
| 3. Radio receiver | ||
| No sound can be heard from speakers (audio is mute). (without navigation system) | 1. AVC-LAN circuit | |
| 2. Radio receiver power source circuit | ||
| 3. Integration control & panel assembly power source circuit | ||
| 4. Proceed to "No Sound can be Heard from Speakers" | ||
| 5. Stereo component amplifier power source circuit | ||
| 6. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | ||
| 7. Speaker circuit | ||
| 8. Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | ||
| 9. Stereo component amplifier | ||
| 10. Radio receiver | ||
| 11. Integration control & panel assembly | ||
| No sound can be heard from speakers (audio is mute). (with navigation system) | 1. AVC-LAN circuit | |
| 2. Radio receiver power source circuit | ||
| 3. Multi-display power source circuit | ||
| 4. Proceed to "No Sound can be Heard from Speakers" | ||
| 5. Stereo component amplifier power source circuit | ||
| 6. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | ||
| 7. Speaker circuit | ||
| 8. Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | ||
| 9. Stereo component amplifier | ||
| 10. Radio receiver | ||
| 11. Multi-display | ||
| Only DVD sound cannot be heard or sound quality is bad. (with DVD Changer) | 1. Proceed to "DVD Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | |
| 2. Stereo component amplifier | ||
| 3. Radio receiver | ||
| Sound quality is bad in all modes (Volume is too low.) | 1. Proceed to "Poor Sound Quality in All Modes (Low Volume)" | |
| 2. Speaker circuit. | ||
| 3. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier" | ||
| 4. Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier" | ||
| 5. Stereo component amplifier | ||
| 6. Radio receiver | ||
| ASL does not function. | Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter" | |
| External device sound cannot be heard or sound quality is bad. (Stereo jack is used.) | 1. Radio receiver power source circuit | |
| 2. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | ||
| 3. Stereo jack adapter | ||
| 4. Radio receiver | ||
| Abnormal noise occurs. | 1. Proceed to "Noise occurs" | |
| 2. Stereo component amplifier | ||
| 3. Radio receiver | ||
| Radio broadcast cannot be received or poor reception. | Proceed to "Radio Broadcast cannot be Received or Poor Reception" | |
| CD cannot be inserted/played or CD is ejected right after insertion. | 1. Radio receiver power source circuit | |
| 2. Proceed to "CD cannot be Inserted/Played or CD is Ejected Right After Insertion" | ||
| CD cannot be ejected. | 1. Radio receiver power source circuit | |
| 2. Proceed to "CD cannot be Ejected" | ||
| 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)" | |
| CD sound skips. | Proceed to "CD Sound Skips" | |
| Radio receiver or integration control & panel assembly cannot be illuminated at night. | Illumination circuit |
| Symptom | Suspected area | See page |
| Audio system cannot be operated with steering pad switch. | 1. Steering pad switch circuit | |
| 2. Radio receiver | ||
| Steering pad switch cannot be illuminated at night. | Illumination circuit |