Problem Symptoms Table
WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE - NAVIGATION SYSTEM
| Flow chart No. | Component | Symptom |
|---|---|---|
| 1. | Multi display | Black screen (Nothing displayed) |
| 2. | No sound with Power switch pressed. ("AUTO OFF" on audio screen) | |
| 3. | No navigation screen displayed when "MAP", "MENU" or "DEST" switch pressed. (Screen cannot be switched.) | |
| 4. | No corresponding screen displayed when "AUDIO" or "Information" switch pressed. | |
| 5. | No navigation displayed, "Audio OFF" on audio screen and no audio sound. | |
| 6. | Screen cannot be dimmed in night time. | |
| 7. | Navigation screen not stabilized. (Synchronous error) | |
| 8. | Color on navigation screen is unusual (RGB signal error) | |
| 9. | Black screen appears when "MAP", "Menu" or "DEST" switch pressed. | |
| 10. | Sound of radio, cassette tape or CD only cannot be heard from speaker. | |
| 11. | No sound (radio, cassette tape, CD) can be heard from driver side door speaker only. | |
| 12. | Map DISC cannot be inserted. | |
| 13. | MAP screen display does not appear. (Disc Caution screen does not change.) | |
| 14. | MAP is displayed in white or blue screen. (Switch and vehicle position mark is displayed.) | |
| 15. | Touch switch does not function. (Navigation screen only) | |
| 16. | Touch switch does not function. (A/C control screen only) | |
| 17. | Panel switch does not function. (Navigation screen only) | |
| 18. | Panel switch does not function. (A/C control screen only) | |
| 19. | The screen cannot be change to night mode color. | |
| 20. | Vehicle position is deviated from correct point badly. | |
| 21. | GPS mark does not appear. | |
| 22. | No voice navigation. | |
| 23. | Vehicle position rotates without control. (Map rotates without control) | |
| 24. | Driving direction is opposite to moving direction of vehicle position mark. | |
| 25. | Audio Head Unit | Radio reception poor. |
| 26. | Cassette tape cannot be inserted. | |
| 27. | Cassette tape cannot be ejected. | |
| 28. | Any speaker does not work. | |
| 29. | CD AUTO Changer | CD magazine cannot be inserted. |
| 30. | CD magazine inserted, but no power. | |
| 31. | Power coming in, but CD auto changer not operating. | |
| 32. | Sound jumps. | |
| 33. | Sound quality poor. (Volume faint) | |
| 34. | CD magazine will not be ejected. | |
| 35. | Any speaker does not work. | |
| 36. | Power Amplifier | No power coming in. |
| 37. | Any speaker does not work. | |
| 38. | No power coming, but woofer amplifier not operating. | |
| 39. | Noise | Noise occurs |
| 40. | Noise produced by vibration or shock while driving. | |
| 41. | Noise produced when engine starts. |