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 | See |
|---|---|---|
| Black screen (No image appears on navigation/audio screen). | Proceed to "Black Screen" | Refer to Black Screen |
| 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 | |
| Display and navigation module display | Refer to REMOVAL | |
| Display does not dim 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 |
| 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 | |
| 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 |
| Display and navigation module display | Refer to REMOVAL | |
| Screen is distorted. | Proceed to "Navigation ECU Power Source Circuit" | Refer to Navigation ECU Power Source Circuit |
| 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 |
| 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 Navigation ECU |
| Proceed to "Parking Brake Switch Circuit" | Refer to Parking Brake Switch Circuit | |
| Radio receiver assembly | Refer to REMOVAL | |
| Display and navigation module display | Refer to REMOVAL | |
| Navigation function switches can be operated while vehicle is running. | Display and navigation module display | Refer to REMOVAL |
NAVIGATION FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| Map disc cannot be inserted. | Proceed to "Map Disc cannot be Inserted" | Refer to Map Disc cannot be Inserted |
| Navigation module board | - | |
| Map disc cannot be ejected. | Navigation module board | - |
| Map display incomplete. | Proceed to "Map Display Incomplete" | Refer to Map Display Incomplete |
| Navigation module board | - | |
| Vehicle position mark deviates. | Proceed to "Vehicle Position Mark Deviates Greatly" | Refer to Vehicle Position Mark Deviates Greatly |
| Navigation antenna assembly | Refer to REMOVAL | |
| Display and navigation module display | Refer to REMOVAL | |
| Cursor or map rotates when vehicle is stopped. | Proceed to "Cursor or Map Rotates When Vehicle Stopped" | Refer to Cursor or Map Rotates when Vehicle Stopped |
| Display and navigation module display | Refer to REMOVAL | |
| Vehicle position mark is not updated. | Proceed to "Vehicle Position Mark is not Updated" | Refer to Vehicle Position Mark is not Updated |
| Map disc | - | |
| Navigation module board | - | |
| Display and navigation module display | Refer to REMOVAL | |
| Current position display does not appear. | Proceed to "Current Position Display does not Appear" | Refer to Current Position Display does not Appear |
| Map disc | - | |
| Navigation antenna assembly | Refer to REMOVAL | |
| Navigation module board | - | |
| Display and navigation module display | Refer to REMOVAL | |
| GPS mark is not displayed. | Proceed to "GPS Mark is not Displayed" | Refer to GPS Mark is not Displayed |
| Navigation antenna assembly | Refer to REMOVAL | |
| Display and navigation module display | Refer to REMOVAL | |
| Voice guidance does not function. | Proceed to "Voice Guidance does not Function" | Refer to Voice Guidance does not Function |
| Proceed to "Speaker Circuit" | Refer to Speaker Circuit | |
| Map disc | - | |
| Navigation module board | - | |
| Display and navigation module display | Refer to REMOVAL | |
| Stereo component amplifier assembly | Refer to REMOVAL | |
| Radio receiver assembly | Refer to REMOVAL | |
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | Refer to Route cannot be Calculated |
| Map disc | - | |
| Navigation module board | - | |
| Display and navigation module display | Refer to REMOVAL | |
| Voice recognition is difficult. | Proceed to "Voice Recognition Difficulty" | Refer to Voice Recognition Difficulty |
| Proceed to "Microphone Circuit between Microphone and Navigation ECU" | Refer to Microphone Circuit between Microphone and Navigation ECU | |
| Telematics transceiver | Refer to REMOVAL | |
| Display and navigation module display | Refer to REMOVAL | |
| Voice is not recognized. | Proceed to "Voice is not Recognized" | Refer to Voice is not Recognized |
| Proceed to "Microphone Circuit between Microphone and Navigation ECU" | Refer to Microphone Circuit between Microphone and Navigation ECU | |
| Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit | |
| Telematics transceiver | Refer to REMOVAL | |
| Display and navigation module display | Refer to REMOVAL | |
| Customizable parameters cannot be changed. (Customizable parameters can be changed by using the Techstream.) | Display and navigation module display | Refer to REMOVAL |
| Reverse signal does not change in the vehicle signal check mode screen. | Proceed to "Reverse Signal Circuit" | Refer to Reverse Signal Circuit |
| Display and navigation module display. | Refer to REMOVAL | |
| "MIC" is not displayed on system check mode screen. | Proceed to "Microphone Circuit between Microphone and Navigation ECU" | Refer to Microphone Circuit between Microphone and Navigation ECU |
| Display and navigation module display | Refer to REMOVAL | |
| "AUX" is not displayed on system check mode screen. | Proceed to "Sound Signal Circuit between Radio Receiver Assembly and Stereo Jack Adapter" | Refer to Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter |
| Radio receiver assembly | Refer to REMOVAL | |
| Display and navigation module display | Refer to REMOVAL |
STEERING PAD SWITCH FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| System cannot be operated by steering pad switch. | Proceed to "Steering Pad Switch Circuit" | Refer to Steering Pad Switch Circuit |
| 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 |
| Display and navigation module display | Refer to REMOVAL |
"BLUETOOTH" HANDS-FREE FUNCTION
| Symptom | Suspected Area | See |
|---|---|---|
| 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 | |
| Radio receiver assembly | Refer to REMOVAL | |
| Cellular phone cannot make calls in a certain place. | Proceed to "Cannot Call in a Certain Place" | Refer to Cannot Call in a Certain Place |
| 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" | Refer to The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted |
| Radio receiver assembly | Refer to REMOVAL | |
| Stereo component amplifier assembly | Refer to REMOVAL | |
| Display and navigation module display | Refer to REMOVAL | |
| 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 Navigation ECU" | Refer to Microphone Circuit between Microphone and Navigation ECU | |
| Radio receiver assembly | Refer to REMOVAL | |
| Telematics transceiver | Refer to REMOVAL |