NAVIGATION SYSTEM(for DVD) PROBLEM SYMPTOMS TABLE
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.
Symptom |
Suspected Area |
Link |
|---|---|---|
Black screen (no image appears on navigation/audio screen) |
Proceed to "Black Screen" |
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Proceed to "Illumination Circuit" |
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Proceed to "AVC-LAN Circuit" |
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Replace display and navigation module display |
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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" |
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Proceed to "Illumination Circuit" |
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Replace display and navigation module display |
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Display does not dim (night screen) with TAIL switch on |
Proceed to "Display does not Dim when Light Control Switch is Turned ON" |
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Proceed to "Illumination Circuit" |
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Replace display and navigation module display |
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Power does not turn off (screen remains on) |
Proceed to "Navigation ECU Power Source Circuit" |
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Replace display and navigation module display |
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Panel switches do not function |
Proceed to "Panel Switches do not Function" |
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Proceed to "Steering Pad Switch Circuit" |
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Proceed to "Navigation ECU Power Source Circuit" |
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Replace display and navigation module display |
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Touch panel switch does not function |
Proceed to "Touch Panel Switch does not Function" |
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Proceed to "Steering Pad Switch Circuit" |
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Proceed to "Navigation ECU Power Source Circuit" |
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Replace display and navigation module display |
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Screen is distorted |
Proceed to "Navigation ECU Power Source Circuit" |
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Replace display and navigation module display |
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Screen flicker or color distortion |
Proceed to "Screen Flicker or Color Distortion" |
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Proceed to "Navigation ECU Power Source Circuit" |
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Replace display and navigation module display |
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DVD image cannot be displayed on front screen (parking brake is on) |
Proceed to "Parking Brake Switch Signal Circuit" |
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Replace display and navigation module display |
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Navigation function switches can be operated while vehicle is running |
Replace display and navigation module display |
Symptom |
Suspected Area |
Link |
|---|---|---|
Vehicle position mark deviates |
Proceed to "Vehicle Position Mark Deviates Greatly" |
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Replace navigation antenna assembly |
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Replace display and navigation module display |
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Cursor or map rotates when vehicle is stopped |
Proceed to "Cursor or Map Rotates when Vehicle is Stopped" |
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Replace display and navigation module display |
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Vehicle position mark is not updated |
Proceed to "Vehicle Position Mark is not Updated" |
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Replace map disc |
- |
|
Replace display and navigation module display |
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Current position display does not appear |
Proceed to "Current Position Display does not Appear" |
|
Replace map disc |
- |
|
Replace navigation antenna assembly |
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Replace display and navigation module display |
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GPS mark is not displayed |
Proceed to "GPS Mark is not Displayed" |
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Replace navigation antenna assembly |
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Replace display and navigation module display |
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Voice guidance does not function |
Proceed to "Voice Guidance does not Function" |
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Replace map disc |
- |
|
Proceed to "Speaker Circuit" |
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Replace stereo component amplifier assembly |
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Replace display and navigation module display |
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Map display incomplete |
Proceed to "Map Display Incomplete" |
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Replace map disc |
- |
|
Replace display and navigation module display |
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Route cannot be calculated |
Proceed to "Route cannot be Calculated" |
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Replace map disc |
- |
|
Replace display and navigation module display |
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Voice recognition difficulty |
Proceed to "Voice Recognition Difficulty" |
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Proceed to "Microphone Circuit between Microphone and Navigation ECU" |
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Replace telephone microphone assembly |
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Replace display and navigation module display |
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Voice is not recognized |
Proceed to "Voice is not Recognized" |
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Proceed to "Microphone Circuit between Microphone and Navigation ECU" |
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Proceed to "Steering Pad switch Circuit" |
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Replace telephone microphone assembly |
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Replace display and navigation module display |
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Reverse signal does not change in vehicle signal check mode |
Operation check - Check Vehicle Signal |
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Replace display and navigation module display |
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"MIC" is not displayed on system check mode screen |
Proceed to "Microphone Circuit between Microphone and Navigation ECU" |
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Replace display and navigation module display |
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"AUX" is not displayed on system check mode screen |
Proceed to "B15D0" |
|
Proceed to "Sound Signal Circuit between Radio Receiver Assembly and Stereo Jack Adapter" |
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Replace radio receiver assembly |
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Replace No. 1 stereo jack adapter assembly |
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Replace display and navigation module display |
Symptom |
Suspected Area |
Link |
|---|---|---|
System cannot be operated by steering pad switch |
Proceed to "Steering Pad Switch Circuit" |
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Replace display and navigation module display |
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Illumination for steering pad switch does not come on with tail switch on |
Proceed to "Illumination Circuit" |
|
Replace display and navigation module display |
Symptom |
Suspected Area |
Link |
|---|---|---|
Cellular phone registration failure, phone directory transfer failure |
Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" |
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Cellular phone cannot send/receive |
Proceed to "Cellular Phone cannot Send / Receive" |
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Proceed to "Steering Pad Switch Circuit" |
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Replace display and navigation module display |
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Cannot call in certain place |
Proceed to "Cannot Call in a Certain Place" |
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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" |
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Replace stereo component amplifier assembly |
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Replace display and navigation module display |
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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" |
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Proceed to "Microphone Circuit between Microphone and Navigation ECU" |
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Replace display and navigation module display |
Symptom |
Suspected Area |
Link |
|---|---|---|
"Fuel Consumption" icon is dimmed |
Check if other icons or items displayed on screen have any problems |
- |
Replace display and navigation module display |
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Graph is not displayed on "Consumption" screen |
Recheck with engine running |
- |
Replace display and navigation module display |
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Cruise range is not displayed on "Consumption" screen |
Turn engine switch on (IG) and recheck |
- |
Replace display and navigation module display |
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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 |
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Graph is not displayed on "Past record" screen |
Turn engine switch on (IG) and recheck |
- |
Replace display and navigation module display |
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Date is not displayed on "Past record" screen, or displayed date has large margin of error |
Move vehicle to area where GPS signals can be received |
- |
Operation Check - Check GPS & Vehicle Sensors |
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Remove optional components that use radio waves |
- |
|
Replace navigation antenna assembly |
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Replace display and navigation module display |