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.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below
Display Function
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| Pressing PWR switch does not turn on system | Proceed to "Pressing Power Switch does not Turn ON System" | PRESSING POWER SWITCH DOES NOT TURN ON SYSTEM |
| Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT | |
| AVC-LAN circuit | AVC-LAN CIRCUIT | |
| Multi-display | MULTI-DISPLAY | |
| 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 | |
| Multi-display | MULTI-DISPLAY | |
| 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 | |
| Multi-display | MULTI-DISPLAY | |
| 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 | |
| Multi-display | MULTI-DISPLAY | |
| Power does not turn off (The screen remains on) | Multi-display power source circuit | MULTI-DISPLAY POWER SOURCE CIRCUIT |
| Multi-display | MULTI-DISPLAY | |
| 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 | |
| Multi-display | MULTI-DISPLAY | |
| 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 | |
| Multi-display | MULTI-DISPLAY | |
| Navigation screen is not displayed | Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY |
| Map disc | - | |
| Navigation ECU | NAVIGATION ECU | |
| Multi-display | MULTI-DISPLAY | |
| Navigation screen flicker or color distortion | Proceed to "Screen Flicker or Color Distortion" | SCREEN FLICKER OR COLOR DISTORTION |
| Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" | DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY | |
| Navigation ECU | NAVIGATION ECU | |
| Multi-display | MULTI-DISPLAY | |
| DVD image cannot be displayed on multi-display (Parking brake is on)*1 | 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 | |
| Radio Receiver | REMOVAL | |
| Multi-display | MULTI-DISPLAY | |
| Navigation function switches can be operated while vehicle is running | Proceed to "Vehicle Speed Signal Circuit between Multi-display and Combination Meter" | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN MULTI-DISPLAY AND COMBINATION METER |
Navigation Function
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| 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 | |
| Navigation ECU | NAVIGATION ECU | |
| 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 | |
| Navigation ECU | NAVIGATION ECU | |
| Vehicle position mark deviates greatly | Proceed to "Vehicle Position Mark Deviates Greatly" | VEHICLE POSITION MARK DEVIATES GREATLY |
| GPS antenna | NAVIGATION ANTENNA | |
| Navigation ECU | NAVIGATION ECU | |
| 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 ECU | NAVIGATION ECU | |
| Vehicle position mark is not updated | Proceed to "Vehicle Position Mark is not Updated" | VEHICLE POSITION MARK IS NOT UPDATED |
| Map disc | - | |
| Navigation ECU | NAVIGATION ECU | |
| Current position display does not appear | Proceed to "Current Position Display does not Appear" | CURRENT POSITION DISPLAY DOES NOT APPEAR |
| Map disc | - | |
| GPS antenna | NAVIGATION ANTENNA | |
| Navigation ECU | NAVIGATION ECU | |
| GPS Mark is not displayed | Proceed to "GPS Mark is not Displayed" | GPS MARK IS NOT DISPLAYED |
| GPS antenna | NAVIGATION ANTENNA | |
| Navigation ECU | NAVIGATION ECU | |
| Voice guidance does not function | Proceed to "Voice Guidance does not Function" | VOICE GUIDANCE DOES NOT FUNCTION |
| Navigation voice circuit | NAVIGATION VOICE CIRCUIT | |
| Map disc | - | |
| Navigation ECU | NAVIGATION ECU | |
| Stereo component amplifier | REMOVAL | |
| Map display incomplete | Proceed to "Map Display Incomplete" | MAP DISPLAY INCOMPLETE |
| Map disc | - | |
| Navigation ECU | NAVIGATION ECU | |
| Route cannot be calculated | Proceed to "Route cannot be Calculated" | ROUTE CANNOT BE CALCULATED |
| Map disc | - | |
| Navigation ECU | NAVIGATION ECU | |
| Voice recognition difficulty | Proceed to "Voice Recognition Difficulty" | VOICE RECOGNITION DIFFICULTY |
| Navigation ECU | NAVIGATION ECU | |
| Voice is not recognized | Proceed to "Voice is not Recognized" | VOICE IS NOT RECOGNIZED |
| Proceed to "Microphone circuit between Overhead J/B and Multi-display" | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| Proceed to "Microphone circuit between Multi-display and Navigation ECU" | MICROPHONE CIRCUIT BETWEEN MULTI-DISPLAY AND NAVIGATION ECU | |
| Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT | |
| Microphone | MICROPHONE | |
| Microphone amplifier | MICROPHONE | |
| Navigation ECU | NAVIGATION ECU | |
| Speed signal does not change in the navigation check mode | Proceed to "Vehicle Speed Signal Circuit between Navigation ECU and Multi-display" | VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY |
| Reverse signal does not change in the navigation check mode | Proceed to "Reverse Signal Circuit" | REVERSE SIGNAL CIRCUIT |
Steering Pad Switch Function
PROBLEM SYMPTOMS CHART
| Symptom | Suspected Area | See |
|---|---|---|
| The system cannot be operated by the steering pad switch | Steering pad switch circuit | STEERING PAD SWITCH CIRCUIT |
| Radio receiver | REMOVAL | |
| Illumination for steering pad switch does not come on with tail switch on | Illumination circuit | ILLUMINATION CIRCUIT |
| Radio receiver | REMOVAL |
"Bluetooth" Function
PROBLEM SYMPTOMS CHART
| 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 |
| 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 | |
| Radio receiver | REMOVAL | |
| Cannot call in a certain place | Proceed to "Cannot call in a Certain Place" | CANNOT CALL IN A CERTAIN PLACE |
| The 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 |
| Multi-display | MULTI-DISPLAY | |
| The other caller cannot hear your voice, or your voice is too quiet or distorted | Proceed to "The Other Caller cannot Heard 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 |
| Proceed to "Microphone circuit between Overhead J/B and Multi-display" | MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY | |
| Microphone | MICROPHONE | |
| Microphone amplifier | MICROPHONE | |
| Multi-display | MULTI-DISPLAY |