LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2004 >> SC 430 >> Repair and Diagnosis >> External Pages >> Different car >> Section 329 (LEXUS Navigation System - Diagnosis) >> Problem Symptoms Table
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Problem Symptoms Table

WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.
PROBLEM SYMPTOMS TABLE

Flow chart No. (See) Component Symptom
1. CIRCUIT INSPECTION  Multi display Black screen (Nothing displayed)
2. NO SOUND WITH POWER SWITCH PRESSED ("AUDIO OFF" ON AUDIO SCREEN)    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)    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    No corresponding screen displayed when "AUDIO" or "Information" switch pressed.
5. NO NAVIGATION DISPLAYED, "AUDIO OFF" ON AUDIO SCREEN AND NO AUDIO SOUND    No navigation displayed, "Audio OFF" on audio screen and no audio sound.
6. SCREEN CANNOT BE DIMMED IN NIGHT TIME    Screen cannot be dimmed in night time.
7. NAVIGATION SCREEN IS NOT STABILIZED (SYNCHRONOUS ERROR)    Navigation screen is not stabilized. (Synchronous error)
8. COLOR ON NAVIGATION SCREEN IS UNUSUAL (RGB SIGNAL ERROR)    Color on navigation screen is unusual (RGB signal error)
9. BLACK SCREEN APPEARS WHEN "MAP", "MENU" OR "DESTINATION" SWITCH PRESSED    Black screen appears when "MAP", "Menu" or "DEST" switch pressed.
10. SOUND OF RADIO, CASSETTE TAPE OR CD ONLY CANNOT BE HEARD FROM SPEAKER    Sound of radio, cassette tape or CD only cannot be heard from speaker.
11. NO SOUND RADIO, CASSETTE TAPE, DVD) CAN BE HEARD FROM DRIVER SIDE DOOR SPEAKER ONLY    No sound (radio, cassette tape, CD) can be heard from driver side door speaker only.
12. MAP DISC CANNOT BE INSERTED    Map DISC cannot be inserted.
13. MAP SCREEN DISPLAY DOES NOT APPEAR (DISC CAUTION SCREEN DOES NOT CHANGE    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 IS DISPLAYED    MAP is displayed in white or blue screen. (Switch and vehicle position mark is displayed.)
15. TOUCH SWITCH DOES NOT FUNCTION (NAVIGATION SCREEN ONLY)    Touch switch does not function. (Navigation screen only)
16. TOUCH SWITCH DOES NOT FUNCTION (A/C CONTROL SCREEN ONLY)    Touch switch does not function. (A/C control screen only)
17. PANEL SWITCH DOES NOT FUNCTION (NAVIGATION SCREEN ONLY)    Panel switch does not function. (Navigation screen only)
18. PANEL SWITCH DOES NOT FUNCTION (A/C CONTROL ONLY)    Panel switch does not function. (A/C control screen only)
19. NAVIGATION SCREEN CANNOT CHANGED TO THE NIGHT MODE COLOR    The screen cannot be changed to night mode color.
20. VEHICLE POSITION IS BADLY DEVIATED FROM CORRECT POINT    Vehicle position is badly deviated from correct point.
21. GPS MARK DOES NOT APPEAR    GPS mark does not appear.
22. NO VOICE NAVIGATION    No voice navigation.
23. VEHICLE POSITION ROTATES WITHOUT CONTROL (MAP ROTATES WITHOUT CONTROL)    Vehicle position rotates without control. (Map rotates without control)
24. DRIVING DIRECTION IS OPPOSITE TO MOVING DIRECTION OF VEHICLE POSITION MARK    Driving direction is opposite to moving direction of vehicle position mark.
25. NAVIGATION SYSTEM CANNOT BE OPERATED WITH VOICE RECOGNITION    Navigation system cannot be operated with voice recognition.
26. ANY SPEAKER DOES NOT WORK (DVD SOUND ONLY)  DVD AUTO Changer Any speaker does not work. (DVD sound only)
27. DVD MAGAZINE CONNOT BE INSERTED    DVD magazine cannot be inserted.
28. DVD MAGAZINE INSERTED, BUT NO POWER    DVD magazine inserted, but no power.
29. POWER COMES IN, BUT DVD AUTO CHANGER DOES NOT OPERATE    Power comes in, but DVD auto changer does not operate.
30. SOUND JUMPS (DVD SOUND ONLY)    Sound jumps. (DVD sound)
31. DVD MAGAZINE WILL NOT BE EJECTED    DVD magazine will not be ejected.
32. TROUBLESHOOTING   Any speaker does not work.