Problem Symptoms Table
WARNING: This page is about a different car, the 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS INDEX
| Flow Chart No. | Symptom | Refer To |
|---|---|---|
| 1 | Black screen (Nothing displayed) | 1. Black screen (Nothing displayed) |
| 2 | No sound even with POWER switch pressed. ("Audio OFF" on audio screen) | 2. NO SOUND WITH POWER SWITCH PRESSED. ("AUDIO OFF" on audio screen) |
| 3 | No navigation screen displayed when "MAP", "MENU", or "DESTINATION" switch pressed (Screen cannot be switched.) | 3. NO NAVIGATION SCREEN DISPLAYED WHEN "MAP", "MENU", OR "DESTINATION" switch pressed. (Screen cannot be switched.) |
| 4 | No corresponding screen displayed when "AUDIO" or "A/C" switch pressed. (Screens other than above can be displayed.) | 4. NO CORRESPONDING SCREEN DISPLAYED WHEN "AUDIO" OR "A/C" switch pressed. |
| 5 | No navigation displayed, "Audio OFF" on audio screen and no audio sound. | 5. NO NAVIGATION DISPLAYED, "AUDIO OFF" on audio screen and no audio sound. |
| 6 | Screen cannot be dimmed in night time. | 6. Screen cannot be dimmed in night time. |
| 7 | Navigation screen not stabilized. (Synchronous error) | 7. Navigation screen not stabilized (Synchronous error). |
| 8 | Color on navigation screen is unusual (RGB signal error) | 8. Color on navigation screen is unusual (RGB signal error). |
| 9 | Black screen appears when "MAP", "MENU" or "DESTINATION" switch pressed. | 9. BLACK SCREEN APPEARS WHEN "MAP", "MENU" OR "DESTINATION" switch pressed. |
| 10 | Sound of radio, cassette tape or CD only cannot be heard from speaker. | 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. | 11. No sound (radio, cassette tape, CD) can be heard from driver side door speaker only. |
| 12 | Map DISC cannot be inserted. | 12. Map DISC cannot be inserted. |
| 13 | MAP screen display does not appear. (Disc Caution screen does not change.) | 13. MAP screen display does not appear. (Disc Caution screen does not change.) |
| 14 | Map is displayed in white or blue screen. (Switches and vehicle position mark are displayed.) | 14. Map is displayed in white or blue screen. (Switches and vehicle position mark are displayed.) |
| 15 | Navigation screen cannot change to night mode color. | 15. Navigation screen cannot change to night mode color. |
| 16 | Touch switch does not function. (Navigation screen only) | 16. Touch switch does not function. (Navigation screen only) |
| 17 | Vehicle position is deviated from correct point badly. | 17. Vehicle position is deviated from correct point badly. |
| 18 | GPS mark does not appear. | 18. GPS mark does not appear. |
| 19 | No voice navigation. | 19. No voice navigation. |
| 20 | Vehicle position mark rotates without control. (Map rotates without control) | 20. Vehicle position mark rotates without control. (Map rotates without control) |
| 21 | Driving direction is opposite to moving direction of vehicle position mark. | 21. Driving direction is opposite to moving direction of vehicle position mark. |
| 22 | Radio reception poor. | 22. Radio broadcast cannot be received. (Bad reception) |
| 23 | Cassette tape cannot be inserted. | 23. Cassette tape cannot be inserted. |
| 24 | Cassette tape cannot be ejected. | 24. Cassette tape cannot be ejected. |
| 25 | CD cannot be inserted. | 25. CD can not be inserted. |
| 26 | CD cannot be ejected. | 26. CD cannot be ejected. |
| 27 | No AM, FM or CD screen is displayed. | 27. No AM, FM or CD screen is displayed. |
| 28 | Audio screen is not displayed. | 28. Audio screen is not displayed. |
| 29 | Panel switches do not function. | 29. Panel switches do not function. |
| 30 | Touch SW on the air conditioner screen does not function. | 30. Touch SW on air conditioner screen does not function. |
| 31 | Turning Light Control switch "Tail" does not light up the panel switches. | 31. TURNING LIGHT CONTROL SWITCH TO "TAIL" does not light up panel switches. |
| 32 | Turning Light Control switch "Tail" does not light up the radio receiver switches. | 32. TURNING LIGHT CONTROL SWITCH TO "TAIL" does not light up radio receiver switches. |
| 33 | Audio system cannot be operated with Steering PAD switch. (It can be operated with Panel/Touch switches.) | 33. Audio system cannot be operated with Steering PAD switch. (It can be operated with Panel/Touch switches.) |
| 34 | Audio system cannot be operated with air conditioner switches on Rear Controller. (It can be operated with Panel/Touch switches.) | 34. Audio system cannot be operated with air conditioner switches on the Rear Controller. (It can be operated with Panel/Touch switches.) |
| 35 | Navigation system cannot be operated with voice recognition. | 35. Navigation system cannot be operated with voice recognition. |
| 36 | Cellular mobile telephone screen is not displayed on multi display. (Navigation system screen is displayed.) | 36. Cellular mobile telephone screen is not displayed on multi display. (Navigation system screen is displayed.) |
| 37 | Cellular mobile phone is in abnormal operation. (Navigation system can be operated with voice recognition.) | 37. Cellular mobile phone is in abnormal operation. (Navigation system can be operated with the voice recognition.) |
| 38 | Cellular mobile phone cannot be operated with Steering pad switch. (It can be operated with Panel/Touch switches.) | 38. Cellular phone cannot be operated with Steering pad switch. (It can be operated with Panel/Tough switches.) |
| 39 | Pressing "Call" or "HOOK" switch does not activate the voice recognition. | 39. PRESSING THE "CALL" OR "HOOK" switch does not activate voice recognition. |