Problem Symptoms Table
WARNING: This page is about a different car, the 2004 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE - LEXUS NAVIGATION SYSTEM
| Flow chart No. | Symptom |
|---|---|
| 1 | Black screen (Nothing displayed) |
| 2 | Screen cannot be dimmed in night time, |
| 3 | No navigation screen displayed when "MAP", "MENU", or "DESTINATION" switch pressed (Screen cannot be switched.) |
| 4 | Navigation screen not stabilized. (Synchronous error) |
| 5 | Color on navigation screen is unusual (RGB signal error) |
| 6 | Black screen appears when "MAP", "MENU" or "DESTINATION" switch pressed. |
| 7 | Map DISC cannot be inserted. |
| 8 | MAP screen display does not appear. (Disc Caution screen does not change,) |
| 9 | Map is displayed in white or blue screen. (Switches and vehicle position mark are displayed.) |
| 10 | Touch switch does not function, (Navigation screen only) |
| 11 | Vehicle position is deviated from correct point badly. |
| 12 | GPS mark does not appear. |
| 13 | Vehicle position mark rotates without control. (Map rotates without control) |
| 14 | Driving direction is opposite to moving direction of vehicle position mark. |
| 15 | Turn light control switch "TAIL" does not light up the panel switches |
| 16 | Navigation screen cannot change to night mode color. |
| 17 | Panel switches do not function |
| 18 | CLOSED/OPENED door of multi-display does not OPEN/CLOSE |
| 19 | Door of multi-display unexpectedly stop during OPEN/CLOSE operation |
| 20 | Cranking closes door of multi-display once and opens it again |
| 21 | Display does not tilt |
| 22 | Sound of all audio mode is not heard from driver side front squawker and front tweeter. (Navigation voice is heard.) |
| 23 | Sound quality is bad only driver side front squawker and front tweeter in all audio mode. (Navigation voice is normal.) |
| 24 | Voice guidance or audio sound is not heard form front squauker and tweeter during voice guidance. (Audio mode is normal.) |
| 25 | No voice navigation/Audio sound does not mute when voice guidance is heard. |
| 26 | Sound quality is bad only navigation voice (Audio sound is normal.) |
| 27 | Front speaker (Front sqweaker and front tweeter) only does not sound. |