NAVIGATION SYSTEM (for HDD) PROBLEM SYMPTOMS TABLE
Tech Tips
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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.
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Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| Symptom | Suspected Area | See page |
|---|---|---|
| Black screen (No image appears on navigation/audio screen.) | Proceed to "Black Screen" | |
| Proceed to "Navigation ECU Power Source Circuit" | ||
| Hard Disk Drive | ||
| Display and navigation module display | ||
| A message is displayed to inform the driver that the program cannot be read, and switch operation has no effect. | Hard Disk Drive | |
| Display and navigation module display | ||
| Illumination for panel switch does not come on with the tail switch on. | Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON" | |
| Proceed to "Illumination Circuit" | ||
| Display and navigation module display | ||
| Display does not dim (does not change to night screen) with tail switch on. | Proceed to "Display does not Dim when Light Control Switch is Turned ON" | |
| Display and navigation module display | ||
| Panel switches do not function. | Proceed to "Panel Switches do not Function" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Display and navigation module display | ||
| Touch panel switch does not function. | Proceed to "Touch Panel Switch does not Function" | |
| Display and navigation module display | ||
| Screen is distorted. | Proceed to "Navigation ECU Power Source Circuit" | |
| Display and navigation module display | ||
| Screen flicker or color distortion | Proceed to "Screen Flicker or Color Distortion" | |
| Display and navigation module display | ||
| DVD image cannot be displayed on multi-display. (Parking brake is on.)*1 | Proceed to "DVD Image Signal Circuit between Radio Receiver and Navigation ECU" | |
| Proceed to "Parking Brake Switch Circuit" | ||
| Radio receiver assembly | ||
| Display and navigation module display | ||
| Navigation function switches can be operated while vehicle is being driven. | Display and navigation module display | |
| Immediately after the engine switch is turned on (ACC), the diagnosis mode screen will be displayed on the multi-display. | Proceed to "TC Terminal Circuit" | |
| Display and navigation module display |
| Symptom | Suspected Area | See page |
|---|---|---|
| Vehicle position mark deviates. | Proceed to "Vehicle Position Mark Deviates Greatly" | |
| Navigation antenna assembly | ||
| Display and navigation module display | ||
| Cursor or map rotates when vehicle is stopped. | Proceed to "Cursor or Map Rotates when Vehicle Stopped" | |
| Display and navigation module display | ||
| Vehicle position mark is not updated. | Proceed to "Vehicle Position Mark is not Updated" | |
| Display and navigation module display | ||
| GPS mark is not displayed. | Proceed to "GPS Mark is not Displayed" | |
| Navigation antenna assembly | ||
| Display and navigation module display | ||
| Voice guidance does not function. | Proceed to "Voice Guidance does not Function" | |
| Proceed to "Speaker Circuit" | ||
| Display and navigation module display | ||
| Radio receiver assembly | ||
| Stereo component amplifier assembly | ||
| Map display is incomplete. | Hard disk drive | |
| Display and navigation module display | ||
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | |
| Display and navigation module display | ||
| Navigation ECU cannot record memory point registration or each item setting. | Hard disk drive | |
| Display and navigation module display | ||
| A message indicating to wait for a while because of low temperature is displayed. | Start engine and increase cabin temperature (near navigation ECU) | - |
| Proceed to "Check Hard Disk Drive" in Operation Check | ||
| Display and navigation module display | ||
| A message is displayed because map data cannot be read, and current position screen is not displayed. | If message appears only when driving on rough roads, check if message disappears when vehicle is stopped. | - |
| Hard disk drive | ||
| Display and navigation module display | ||
| Map screen turns white or blue. (GPS receiving status is displayed normally, and switches and own vehicle position mark are also displayed normally.) | Change map scale to smallest (a scale that shows a large area) | - |
| Hard disk drive | ||
| Display and navigation module display | ||
| Voice menu screen is not displayed. | Proceed to "Panel Switches do not Function" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Display and navigation module display | ||
| Voice recognition is difficult. | Proceed to "Voice Recognition Difficulty" | |
| Proceed to "Microphone Circuit between Microphone and Navigation ECU" | ||
| Display and navigation module display | ||
| Voice is not recognized. | Proceed to "Panel Switches do not Function" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Proceed to "Voice is not Recognized" | ||
| Proceed to "Microphone Circuit between Microphone and Navigation ECU" | ||
| Display and navigation module display | ||
| Reverse signal does not change in vehicle signal check mode. | Proceed to "Reverse Signal Circuit" | |
| Display and navigation module display | ||
| "MIC" is not displayed on system check mode screen. | Proceed to "Microphone Circuit between Microphone and Navigation ECU" | |
| Display and navigation module display | ||
| "AUX" is not displayed on system check mode screen. | Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter" | |
| Radio receiver assembly | ||
| Display and navigation module display |
| Symptom | Suspected Area | See page |
|---|---|---|
| System cannot be operated by steering pad switch. | Proceed to "Panel Switches do not Function" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Display and navigation module display | ||
| Illumination for steering pad switch does not come on with tail switch on. | Proceed to "Illumination Circuit" | |
| Display and navigation module display |
| Symptom | Suspected Area | See page |
|---|---|---|
| Bluetooth is inoperative. | Proceed to "Microphone Circuit between Microphone and Navigation ECU" | |
| Radio receiver assembly | ||
| Display and navigation module display | ||
| Cellular phone registration failure, phone directory transfer failure | Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" | |
| Cellular phone cannot send/receive. | Proceed to "Cellular Phone cannot Send/Receive" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Radio receiver assembly | ||
| Display and navigation module display | ||
| Cellular phone cannot call in a certain place. | Proceed 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" | |
| Radio receiver assembly | ||
| Display and navigation module display | ||
| Stereo component amplifier assembly | ||
| 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" | |
| Proceed to "Microphone Circuit between Microphone and Navigation ECU" | ||
| Radio receiver assembly | ||
| Display and navigation module display |
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*1: w/ DVD Player