Problem Symptoms Table
WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Use the tableS below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "Suspected Area" . Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Multi-display
PROBLEM SYMPTOMS TABLE (MULTI-DISPLAY)
| Symptom | Suspected area | Reference |
|---|---|---|
| Black screen (Nothing displayed) | 1. Black screen | BLACK SCREEN |
| 2. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| No sound with power switch pressed. ("AUTO OFF" on audio screen) | 1. No sound can be heard from speakers (audio is mute) | NO SOUND CAN BE HEARD FROM SPEAKERS |
| 2. AVC-LAN circuit | AVC-LAN CIRCUIT | |
| No navigation screen displayed when "MAP", "MENU" or "DEST" switch pressed. (Screen cannot be switched.) | 1. No navigation screen displayed when MAP or DEST switch pressed | NO NAVIGATION SCREEN DISPLAYED WHEN MAP OR DEST SWITCH PRESSED |
| 2. Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| 3. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| 4. Display signal circuit between navigation ECU and multi-display | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY | |
| No corresponding screen displayed when "AUDIO" or "Information" switch pressed. | No corresponding screen displayed when AUDIO or INFO switch pressed | NO CORRESPONDING SCREEN DISPLAYED WHEN AUDIO OR INFO SWITCH PRESSED |
| No navigation displayed, "AUDIO OFF" on audio screen and no audio sound. | 1. No sound and AUDIO OFF displayed on multi-display when power switch pressed | NO SOUND AND AUDIO OFF DISPLAYED ON MULTI-DISPLAY WHEN POWER SWITCH PRESSED |
| 2. AVC-LAN circuit | AVC-LAN CIRCUIT | |
| Screen cannot be dimmed in night time. | 1. Display does not DIM (night screen) with tail switch ON | DISPLAY DOES NOT DIM WHEN LIGHT CONTROL SWITCH IS TURNED ON |
| 2. Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| Navigation screen not stabilized (synchronous error) | 1. Screen flicker or color distortion | SCREEN FLICKER OR COLOR DISTORTION |
| 2. Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| 3. Display signal circuit between navigation ECU and multi-display | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY | |
| Color on navigation screen is unusual (RGB signal error) | 1. Color on navigation screen is unusual (RGB signal error) | COLOR ON NAVIGATION SCREEN IS UNUSUAL (RGB SIGNAL ERROR) |
| 2. Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| 3. Display signal circuit between navigation ECU and multi-display | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY | |
| Block screen appears when "MAP", "Menu" or "DEST" switch pressed. | 1. Black screen appears when MAP, MENU or DEST switch pressed | BLACK SCREEN APPEARS WHEN MAP, MENU OR DEST SWITCH PRESSED |
| 2. Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| 3. Display signal circuit between navigation ECU and multi-display | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY | |
| Sound of radio, cassette tape or CD only cannot be heard from speaker. | Only sound of radio, cassette tape or CD cannot be heard from speaker | ONLY SOUND OF RADIO, CASSETTE TAPE OR CD CANNOT BE HEARD FROM SPEAKER |
| No sound (radio, cassette tape, CD) can be heard from driver side door speaker only. | 1. No sound can be heard from driver side door speaker only | NO SOUND CAN BE HEARD FROM DRIVER SIDE DOOR SPEAKER ONLY |
| 2. Speaker circuit | SPEAKER CIRCUIT | |
| Map DISC cannot be inserted. | 1. MAP disc cannot be inserted | MAP DISC CANNOT BE INSERTED |
| 2. Navigation ECU power source circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| MAP screen display does not appear. (Disc caution screen does not change) | MAP screen display does not appear (disc caution screen does not change) | MAP SCREEN DISPLAYED DOES NOT APPEAR (DISC CAUTION SCREEN DOES NOT CHANGE) |
| MAP is displayed in white or blue screen. (Switches and vehicle position mark are displayed.) | MAP is displayed in white or blue screen (switches and vehicle position mark are displayed) | MAP IS DISPLAYED IN WHITE OR BLUE SCREEN (SWITCHES AND VEHICLE POSITION MARK ARE DISPLAYED) |
| Touch switch does not function. (Navigation screen only) | 1. Touch panel switch does not function | TOUCH PANEL SWITCH DOES NOT FUNCTION |
| 2. AVC-LAN circuit | AVC-LAN CIRCUIT | |
| Touch switch does not function. (A/C control screen only) | 1. Touch panel switch does not function | TOUCH PANEL SWITCH DOES NOT FUNCTION |
| 2. AVC-LAN circuit | AVC-LAN CIRCUIT | |
| Panel switch does not function. (Navigation screen only) | 1. Panel switches do not function | PANEL SWITCHES DO NOT FUNCTION |
| 2. AVC-LAN circuit | AVC-LAN CIRCUIT | |
| Panel switch does not function. (A/C control screen only) | 1. Panel switches do not function | PANEL SWITCHES DO NOT FUNCTION |
| 2. AVC-LAN circuit | AVC-LAN CIRCUIT | |
| The screen cannot be change to night mode color. | Display does not DIM (night screen) with tail switch ON | DISPLAY DOES NOT DIM WHEN LIGHT CONTROL SWITCH IS TURNED ON |
| Vehicle position is deviated from correct point badly. | Vehicle position is deviated from correct point badly | VEHICLE POSITION IS DEVIATED FROM CORRECT POINT BADLY |
| GPS mark does not appear. | GPS mark does not appear | GPS MARK DOES NOT APPEAR |
| No voice navigation | 1. Voice guidance does not function | VOICE GUIDANCE DOES NOT FUNCTION |
| 2. Speaker circuit | SPEAKER CIRCUIT | |
| Vehicle position rotates without control. (Map rotates without control.) | Cursor or MAP rotates when vehicle stopped | CURSOR OR MAP ROTATES WHEN VEHICLE STOPPED |
| Driving direction is opposite to moving direction of vehicle position mark. | 1. Driving directions opposite to moving direction of vehicle position mark. | DRIVING DIRECTIONS OPPOSITE TO MOVING DIRECTION OF VEHICLE POSITION MARK |
| 2. Reverse signal circuit | REVERSE SIGNAL CIRCUIT | |
| Navigation system cannot be operated with voice recognition. | System cannot be operated by voice sound | SYSTEM CANNOT BE OPERATED BY VOICE SOUND |
Disc player changer
PROBLEM SYMPTOMS TABLE (DISC PLAYER CHANGER)
| Symptom | Suspected area | Reference |
|---|---|---|
| Any speaker does not work. (DVD sound only) | Only sound of disc player changer cannot be heard from speaker | ONLY SOUND OF DISC PLAYER CHANGER CANNOT BE HEARD FROM SPEAKER |
| DVD magazine cannot be inserted. | Disc magazine cannot be inserted | DISC MAGAZINE CANNOT BE INSERTED |
| DVD magazine inserted, but no power. | Disc magazine inserted but no power | DISC MAGAZINE INSERTED BUT NO POWER |
| Power coming in, but DVD auto changer not operating. | Disc player changer has power but does not operate | DISC PLAYER CHANGER HAS POWER BUT DOES NOT OPERATE |
| Sound jumps. (DVD sound) | Disc sound skips for disc player changer only | DISC SOUND SKIPS FOR DISC PLAYER CHANGER ONLY |
| DVD magazine will not be ejected. | Disc magazine does not eject | DISC MAGAZINE DOES NOT EJECT |
Bluetooth system
PROBLEM SYMPTOMS TABLE (BLUETOOTH SYSTEM)
| Symptom | Suspected area | Reference |
|---|---|---|
| Cellular phone registration failure, phone directory transfer failure | Cellular phone registration failure, phone directory transfer failure | CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE |
| The cellular phone cannot send / receive | Cellular phone cannot send / receive | CELLULAR PHONE CANNOT SEND / RECEIVE |
| Cannot call in a certain place | Cannot call in a certain place | CANNOT CALL IN A CERTAIN PLACE |
| Voice on phone cannot be heard, too quiet, distorted | Voice on phone cannot be heard, too quiet or distorted | VOICE ON PHONE CANNOT BE HEARD, TOO QUIET OR DISTORTED |
| Own voice cannot be heard, too quiet or distorted | Own voice cannot be heard, too quiet or distorted | OWN VOICE CANNOT BE HEARD, TOO QUIET OR DISTORTED |