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
| Symptom | Suspected Area | Reference |
|---|---|---|
| Pressing PWR switch does not turn on system | Proceed to "Pressing Power Switch does not Turn on System" | Refer to Pressing Power Switch does not Turn on System |
| Proceed to "AVC-LAN Circuit" | Refer to AVC-LAN Circuit | |
| Proceed to "Display and Navigation Assembly Power Source Circuit" | Refer to Multi-display Power Source Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Black screen (No image appears on navigation/audio screen) | Proceed to "Black Screen" | Refer to Black Screen |
| Proceed to "AVC-LAN Circuit" | Refer to AVC-LAN Circuit | |
| Proceed to "Illumination Circuit" | Refer to Illumination Circuit | |
| Replace display and navigation module display | Refer to 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" | Refer to Illumination for Panel Switch does not Come on with Tail Switch ON |
| Proceed to "Illumination Circuit" | Refer to Illumination Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Display does not dim (night Screen) with TAIL switch on | Proceed to "Display does not Dim when Light Control Switch is Turned ON" | Refer to Display does not Dim when Light Control Switch is Turned ON |
| Proceed to "Illumination Circuit" | Refer to Illumination Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Power does not turn off (Screen remains on) | Proceed to "Display and Navigation Assembly Power Source Circuit" | Refer to Multi-display Power Source Circuit |
| Replace display and navigation module display | Refer to REMOVAL | |
| Panel switches do not function | Proceed to "Panel Switches do not Function" | Refer to Panel Switches do not Function |
| Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Proceed to "Display and Navigation Assembly Power Source Circuit" | Refer to Multi-display Power Source Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Touch panel switch does not function | Proceed to "Touch Panel Switch does not Function" | Refer to Touch Panel Switch does not Function |
| Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Proceed to "Display and Navigation Assembly Power Source Circuit" | Refer to Multi-display Power Source Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Screen is distorted | Proceed to "Display and Navigation Assembly Power Source Circuit" | Refer to Multi-display Power Source Circuit |
| Replace display and navigation module display | Refer to REMOVAL | |
| Screen flicker or color distortion | Proceed to "Screen Flicker or Color Distortion" | Refer to Screen Flicker or Color Distortion |
| Proceed to "Display and Navigation Assembly Power Source Circuit" | Refer to Multi-display Power Source Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| DVD image cannot be displayed on front screen (Parking brake is on)* | Proceed to "DVD Image Signal Circuit between Radio Receiver and Navigation ECU" | Refer to DVD Image Signal Circuit between Radio Receiver and Multi-display |
| Proceed to "Parking Brake Switch Signal Circuit" | Refer to Parking Brake Switch Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Navigation function switches can be operated while vehicle is running | Replace display and navigation module display | Refer to REMOVAL |
- *: for DVD Changer Models
STEERING PAD SWITCH FUNCTION
| Symptom | Suspected Area | Reference |
|---|---|---|
| The system cannot be operated by the steering pad switch | Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit |
| Replace display and navigation module display | Refer to REMOVAL | |
| Illumination for steering pad switch does not come on with tail switch on | Proceed to "Illumination Circuit" | Refer to Illumination Circuit |
| Replace display and navigation module display | Refer to REMOVAL |
"BLUETOOTH" HANDSFREE FUNCTION
| Symptom | Suspected Area | Reference |
|---|---|---|
| Bluetooth inoperative | Proceed to "Microphone Circuit between Microphone and Multi-display" | Refer to Microphone Circuit between Microphone and Multi-display |
| Replace radio receiver assembly | Refer to REMOVAL | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Cellular phone registration failure, phone directory transfer failure | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | Refer to Cellular Phone Registration Failure, Phone Directory Transfer Failure |
| Cellular phone cannot send/receive | Proceed to "Cellular Phone cannot Send/Receive" | Refer to Cellular Phone cannot Send/Receive |
| Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Replace display and navigation module display | Refer to REMOVAL | |
| Cannot call in a certain place | Proceed to "Cannot Call in a Certain Place" | Refer to 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 Quiet, or Distorted" | Refer to The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted |
| Replace stereo component amplifier assembly | Refer to REMOVAL | |
| Replace display and navigation module display | Refer to 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" | Refer to The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted |
| Proceed to "Microphone Circuit between Microphone and Multi-display" | Refer to Microphone Circuit between Microphone and Multi-display | |
| Replace telephone microphone assembly | Refer to REMOVAL | |
| Replace display and navigation module display | Refer to REMOVAL |
FUEL CONSUMPTION FUNCTION
| Symptom | Suspected Area | Reference |
|---|---|---|
| "Fuel Consumption" icon is dimmed | Check if other icons or items displayed on screen have any problems | - |
| Replace display and navigation module display | Refer to REMOVAL | |
| Graph is not displayed on "Consumption" screen | Recheck with engine running | - |
| Replace display and navigation module display | Refer to REMOVAL | |
| Cruise range is not displayed on "Consumption" screen | Turn engine switch on (IG) and recheck | - |
| Replace display and navigation module display | Refer to REMOVAL | |
| Graph is not updated on "Past record" screen even though "Clear" is selected | Turn engine switch on (IG) and recheck | - |
| Replace display and navigation module display | Refer to REMOVAL | |
| Graph is not displayed on "Past record" screen | Turn engine switch on (IG) and recheck | - |
| Replace display and navigation module display | Refer to REMOVAL |