Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Use the table 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" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Display function
DISPLAY FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Pressing power switch does not turn on system. | Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT |
| AVC-LAN circuit | AVC-LAN CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Black screen (no image appears on navigation/audio screen). | Proceed to "No Image Appears on Multi-display" | NO IMAGE APPEARS ON MULTI-DISPLAY |
| Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT | |
| Illumination circuit | ILLUMINATION CIRCUIT | |
| AVC-LAN circuit | AVC-LAN CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Illumination for panel switch does not come on with light control switch on. | Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON" | ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON |
| Illumination circuit | ILLUMINATION CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Display does not dim (night screen) with tail switch on. | Proceed to "Display does not Dim when Light Control Switch is Turned ON" | DISPLAY DOES NOT DIM WHEN LIGHT CONTROL SWITCH IS TURNED ON |
| Illumination circuit | ILLUMINATION CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Power does not turn off (screen remains on). | Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Panel switches do not function. | Proceed to "Panel Switches do not Function" | PANEL SWITCHES DO NOT FUNCTION |
| Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Touch panel switch does not function. | Proceed to "Touch Panel Switch does not Function" | TOUCH PANEL SWITCH DOES NOT FUNCTION |
| Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Navigation screen is not displayed. | Map disc | - |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Navigation screen flicker or color distortion. | Proceed to "Screen Flicker or Color Distortion" | SCREEN FLICKER OR COLOR DISTORTION |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Navigation function switches can be operated while vehicle running | Vehicle speed signal circuit between navigation receiver and combination meter | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND COMBINATION METER |
| Display panel does not open, tilt or tilts improperly | Proceed to "Display Panel does not Open, Tilt, or Tilts Improperly" | DISPLAY PANEL DOES NOT OPEN, TILT OR TILTS IMPROPERLY |
| Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Image displayed by television display is not displayed by navigation receiver* | Display signal circuit between television display assembly and navigation receiver assembly | DISPLAY SIGNAL CIRCUIT BETWEEN TELEVISION DISPLAY ASSEMBLY AND NAVIGATION RECEIVER ASSEMBLY |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Television display | REMOVAL | |
| HINT: *: w/ Rear Seat Entertainment System |
||
Navigation function
NAVIGATION FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Map disc cannot be inserted. | Proceed to "Map Disc cannot be Inserted" | MAP DISC CANNOT BE INSERTED |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Map disc cannot be ejected. | Proceed to "Map Disc cannot be Ejected" | MAP DISC CANNOT BE EJECTED |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Vehicle position mark deviates greatly. | Proceed to "Vehicle Position Mark Deviates Greatly" | VEHICLE POSITION MARK DEVIATES GREATLY |
| Navigation antenna | NAVIGATION ANTENNA | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Cursor or map rotates when vehicle is stopped. | Proceed to "Cursor or Map Rotates when Vehicle is Stopped" | CURSOR OR MAP ROTATES WHEN VEHICLE STOPPED |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Vehicle position mark is not updated. | Proceed to "Vehicle Position Mark is not Updated" | VEHICLE POSITION MARK IS NOT UPDATED |
| Map disc | - | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Current position display does not appear. | Proceed to "Current Position Display does not Appear" | CURRENT POSITION DISPLAY DOES NOT APPEAR |
| Map disc | - | |
| Navigation antenna | NAVIGATION ANTENNA | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| GPS mark is not displayed. | Proceed to "GPS Mark is not Displayed" | GPS MARK IS NOT DISPLAYED |
| Navigation antenna | NAVIGATION ANTENNA | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Voice guidance does not function. | Proceed to "Voice Guidance does not Function" | VOICE GUIDANCE DOES NOT FUNCTION |
| Map disc | - | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Map display is incomplete. | Proceed to "Map Display Incomplete" | MAP DISPLAY INCOMPLETE |
| Map disc | - | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | ROUTE CANNOT BE CALCULATED |
| Map disc | - | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Voice recognition difficulty. | Proceed to "Voice Recognition Difficulty" | VOICE RECOGNITION DIFFICULTY |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Voice is not recognized. | Proceed to "Voice is not Recognized" | VOICE IS NOT RECOGNIZED |
| Microphone circuit between microphone and navigation receiver | MICROPHONE CIRCUIT BETWEEN MICROPHONE AND NAVIGATION RECEIVER ASSEMBLY | |
| Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Speed signal does not change in navigation check mode. | Vehicle speed signal circuit between navigation receiver and combination meter | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND COMBINATION METER |
| Reverse signal does not change in navigation check mode. | Reverse signal circuit | REVERSE SIGNAL CIRCUIT |
Steering pad switch function
STEERING PAD SWITCH FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| System cannot be operated by steering pad switch. | Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Illumination for steering pad switch does not come on with light control switch ON | Illumination circuit | ILLUMINATION CIRCUIT |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) |
"Bluetooth" function
"BLUETOOTH" FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Cellular phone registration failure, phone directory transfer failure. | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Cellular phone cannot send/receive. | Proceed to "Cellular Phone cannot Send/Receive" | CELLULAR PHONE CANNOT SEND / RECEIVE |
| Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Cannot call in a certain place. | Proceed to "Cannot Call in a Certain Place" | CANNOT CALL IN A CERTAIN PLACE |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Other caller's voice cannot be heard, is too quiet, or distorted. | Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted" | THE OTHER CALLER'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED |
| Other caller cannot hear your voice, or your voice is too quiet or distorted. | Proceed to "The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted" | THE OTHER CALLER CANNOT HEAR YOUR VOICE, OR YOUR VOICE IS TOO QUIET OR DISTORTED |
| Microphone circuit between microphone and navigation receiver | MICROPHONE CIRCUIT BETWEEN MICROPHONE AND NAVIGATION RECEIVER ASSEMBLY | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) |
Audio function
AUDIO FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| No sound can be heard from speakers (audio is mute) | Proceed to "No Sound can be Heard from Speakers" | NO SOUND CAN BE HEARD FROM SPEAKERS |
| Speaker circuit | SPEAKER CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Radio broadcast cannot be received or poor reception | Proceed to "Radio Broadcast cannot be Received or Poor Reception" | RADIO BROADCAST CANNOT BE RECEIVED OR POOR RECEPTION |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| CD cannot be inserted / played or CD is ejected right after insertion | Proceed to "CD cannot be Inserted or is Ejected Right After Insertion" | CD CANNOT BE INSERTED OR IS EJECTED RIGHT AFTER INSERTION |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| CD cannot be ejected | Proceed to "CD cannot be Ejected" | CD CANNOT BE EJECTED |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| CD sound skips | Proceed to "CD Sound Skips" | CD SOUND SKIPS |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Abnormal noise occurs | Proceed to "Noise Occurs" | NOISE OCCURS |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Poor sound quality in all modes (low volume) | Proceed to "Poor Sound Quality in All Modes (Low Volume)" | POOR SOUND QUALITY IN ALL MODES (LOW VOLUME) |
| Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| External device sound cannot be heard or sound quality bad (stereo jack is used). | Sound signal circuit between navigation receiver and stereo jack adapter | SOUND SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND STEREO JACK ADAPTER |
| Stereo jack adapter (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Stereo jack adapter (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Navigation receiver power source circuit | NAVIGATION RECEIVER ASSEMBLY POWER SOURCE CIRCUIT | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| Music played by television display can be heard through headphones but cannot be heard from speakers* | Sound signal circuit between navigation receiver assembly and television display assembly | SOUND SIGNAL CIRCUIT BETWEEN NAVIGATION RECEIVER ASSEMBLY AND TELEVISION DISPLAY ASSEMBLY |
| Replace television display | REMOVAL | |
| Navigation receiver (for Column Shift Type) | NAVIGATION RECEIVER (FOR COLUMN SHIFT TYPE) | |
| Navigation receiver (for Floor Shift Type) | NAVIGATION RECEIVER (FOR FLOOR SHIFT TYPE) | |
| HINT: *: w/ Rear Seat Entertainment System |
||