Problem Symptoms Table
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See Reference |
|---|---|---|
| Pressing multi-display main switch does not turn on system. | Multi-display Power Source Circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT |
| AVC-LAN Circuit | AVC-LAN CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Black screen (no image appears on navigation/audio screen). | Proceed to "No Image Appears on Multi-display" | NO IMAGE APPEARS ON MULTI-DISPLAY |
| Multi-display Power Source Circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| Illumination Circuit | ILLUMINATION CIRCUIT | |
| AVC-LAN Circuit | AVC-LAN CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Illumination for panel switch does not come on with TAIL 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 | |
| Replace multi-display | REMOVAL | |
| Display does not dim (night screen) with light control switch turns 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 |
| Replace multi-display | REMOVAL | |
| Power does not turn off (the screen remains on). | Multi-display Power Source Circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT |
| Replace multi-display | REMOVAL | |
| 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 | |
| Multi-display Power Source Circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| Replace multi-display | REMOVAL | |
| 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 | |
| Multi-display Power Source Circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Navigation screen is not displayed. | Replace map disc | - |
| Replace navigation ECU | REMOVAL | |
| Replace multi-display | REMOVAL | |
| Navigation screen flicker or color distortion. | Proceed to "Screen Flicker or Color Distortion" | SCREEN FLICKER OR COLOR DISTORTION |
| Replace navigation ECU | REMOVAL | |
| Replace multi-display | REMOVAL | |
| DVD image cannot be displayed on multi-display (parking brake is on). | Proceed to "Display Signal Circuit between Multi-display and Radio Receiver" | DISPLAY SIGNAL CIRCUIT BETWEEN MULTI-DISPLAY AND RADIO RECEIVER |
| Parking Brake Switch Circuit | PARKING BRAKE SWITCH CIRCUIT | |
| Replace radio receiver | REMOVAL | |
| Replace multi-display | REMOVAL | |
| Navigation function switches can be operated while vehicle is running. | Vehicle Speed Signal Circuit | VEHICLE SPEED SIGNAL CIRCUIT |
Navigation Function
NAVIGATION FUNCTION CHART
| Symptom | Suspected Area | See Reference |
|---|---|---|
| Map disc cannot be inserted. | Proceed to "Map Disc cannot be Inserted" | MAP DISC CANNOT BE INSERTED |
| Navigation ECU Power Source Circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| Replace navigation ECU | REMOVAL | |
| Map disc cannot be ejected. | Proceed to "Map Disc cannot be Ejected" | MAP DISC CANNOT BE EJECTED |
| Navigation ECU Power Source Circuit | NAVIGATION ECU POWER SOURCE CIRCUIT | |
| Replace navigation ECU | REMOVAL | |
| Vehicle position mark deviates greatly. | Proceed to "Vehicle Position Mark Deviates Greatly" | VEHICLE POSITION MARK DEVIATES GREATLY |
| Proceed to "GPS Mark is not displayed" | GPS MARK IS NOT DISPLAYED | |
| Vehicle Speed Signal Circuit | VEHICLE SPEED SIGNAL CIRCUIT | |
| Reverse Signal Circuit | REVERSE SIGNAL CIRCUIT | |
| Replace navigation antenna | NAVIGATION ANTENNA | |
| Replace navigation ECU | REMOVAL | |
| 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 |
| Vehicle Speed Signal Circuit | VEHICLE SPEED SIGNAL CIRCUIT | |
| Replace navigation ECU | REMOVAL | |
| Vehicle position mark is not updated. | Proceed to "Vehicle Position Mark is not Updated" | VEHICLE POSITION MARK IS NOT UPDATED |
| Proceed to "GPS Mark is not Displayed" | GPS MARK IS NOT DISPLAYED | |
| Vehicle Speed Signal Circuit | VEHICLE SPEED SIGNAL CIRCUIT | |
| Replace multi-display | REMOVAL | |
| Replace map disc | - | |
| Replace navigation ECU | REMOVAL | |
| Current position display does not appear. | Proceed to "Current Position Display does not Appear" | CURRENT POSITION DISPLAY DOES NOT APPEAR |
| Replace map disc | - | |
| Replace navigation ECU | REMOVAL | |
| GPS Mark is not displayed. | Proceed to "GPS Mark is not Displayed" | GPS MARK IS NOT DISPLAYED |
| Replace navigation antenna | NAVIGATION ANTENNA | |
| Replace navigation ECU | REMOVAL | |
| No sound can be heard from speakers. | Proceed to "No Sound can be Heard from Speakers" | NO SOUND CAN BE HEARD FROM SPEAKERS |
| Navigation Voice Speaker Circuit | NAVIGATION VOICE SPEAKER CIRCUIT | |
| Voice guidance does not function. | Proceed to "Voice Guidance does not Function" | VOICE GUIDANCE DOES NOT FUNCTION |
| Navigation Voice Speaker Circuit | NAVIGATION VOICE SPEAKER CIRCUIT | |
| Replace map disc | - | |
| Replace stereo component amplifier | REMOVAL | |
| Map display incomplete. | Proceed to "Map Display Incomplete" | MAP DISPLAY INCOMPLETE |
| Replace map disc | - | |
| Replace navigation ECU | REMOVAL | |
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | ROUTE CANNOT BE CALCULATED |
| Replace map disc | - | |
| Replace navigation ECU | REMOVAL | |
| Voice recognition difficulty. | Proceed to "Voice Recognition Difficulty" | VOICE RECOGNITION DIFFICULTY |
| Replace navigation ECU | REMOVAL | |
| Voice is not recognized. | Proceed to "Voice is not Recognized" | VOICE IS NOT RECOGNIZED |
| Microphone circuit between overhead J/B and multi-display | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| Steering Pad Switch Circuit | STEERING PAD SWITCH CIRCUIT | |
| Replace microphone amplifier | REMOVAL | |
| Replace navigation ECU | REMOVAL | |
| Speed signal does not change in navigation check mode. | Vehicle Speed Signal Circuit | VEHICLE SPEED SIGNAL CIRCUIT |
| Reverse signal does not change in navigation check mode. | Reverse Signal Circuit | REVERSE SIGNAL CIRCUIT |
Steering Pad Switch Function
STEERING PAD SWITCH FUNCTION CHART
| Symptom | Suspected Area | See Reference |
|---|---|---|
| The system cannot be operated by steering pad switch. | Steering Pad Switch Circuit | STEERING PAD SWITCH CIRCUIT |
| Replace radio receiver | REMOVAL | |
| Illumination for steering pad switch does not come on with tail switch on. | Illumination Circuit | ILLUMINATION CIRCUIT |
| Replace radio receiver | REMOVAL |
"Bluetooth" Function
BLUETOOTH FUNCTION CHART
| Symptom | Suspected Area | See Reference |
|---|---|---|
| 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 |
| 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 | |
| Replace multi-display | REMOVAL | |
| Cannot call in a certain place. | Proceed to "Cannot Call in a Certain Place" | CANNOT CALL IN A CERTAIN PLACE |
| The other callers voice cannot be heard, is too quiet, or distorted. | Proceed to "The Other Callers Voice cannot be Heard, is too Quiet, or Distorted" | THE OTHER CALLER'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED |
| Proceed to "Voice Guidance does not Function" | VOICE GUIDANCE DOES NOT FUNCTION | |
| Replace multi-display | REMOVAL | |
| The 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 Overhead J/B and Multi-display | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| Replace microphone | REMOVAL | |
| Replace multi-display | REMOVAL |