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.)*1 | Proceed to "Black Screen" | |
| Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" | ||
| Proceed to "Visual Mute Signal Circuit between Navigation ECU and Multi-display" | ||
| Hard disk drive | ||
| Display and navigation module display | ||
| Black screen (No image appears on navigation/audio screen.)*2 | Proceed to "Black Screen" | |
| Proceed to "Display Signal Circuit between Navigation ECU and Parking Assist ECU" | ||
| Proceed to "Display Signal Circuit between Parking Assist ECU and Multi-display" | ||
| Proceed to "Visual Mute Signal Circuit between Navigation ECU and Multi-display" | ||
| Hard disk drive | ||
| Display and navigation module display | ||
| A message is displayed to inform the driver that the program cannot be read, and the system cannot be operated using the remote touch. | Hard disk drive | |
| Display and navigation module display | ||
| A white or blue screen remains displayed after the power switch is turned on (ACC). (Even though the navigation system is operated, the screen does not change or navigation sound cannot be heard.) | Hard disk drive | |
| Display and navigation module display | ||
| Multi-display assembly | ||
| A white or blue screen remains displayed after the power switch is turned on (ACC). (When the navigation system is operated the current position screen or a navigation screen such as MENU is displayed or navigation sound is heard.) | Display and navigation module display | |
| The multi-display does not dim when the tail switch is turned on. | Proceed to "Display does not DIM when Light Control Switch is Turned ON" | |
| Multi-display assembly | ||
| Display and navigation module display | ||
| Power does not turn off. (Screen remains on.) | Proceed to "Navigation ECU Power Source Circuit" | |
| Display and navigation module display | ||
| Multi-display assembly | ||
| Noise occurs when screens switch. | Proceed to "Visual Mute Signal Circuit between Navigation ECU and Multi-display" | |
| Display and navigation module display | ||
| Multi-display assembly | ||
| Screen is distorted. | Proceed to "Navigation ECU Power Source Circuit" | |
| Display and navigation module display | ||
| Multi-display assembly | ||
| Screen flicker or color distortion.*1 | Proceed to "Screen Flicker or Color Distortion" | |
| Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" | ||
| Proceed to "Visual Mute Signal Circuit between Navigation ECU and Multi-display" | ||
| Display and navigation module display | ||
| Screen flicker or color distortion.*2 | Proceed to "Screen Flicker or Color Distortion" | |
| Proceed to "Display Signal Circuit between Navigation ECU and Parking Assist ECU" | ||
| Proceed to "Display Signal Circuit between Parking Assist ECU and Multi-display" | ||
| Proceed to "Visual Mute Signal Circuit between Navigation ECU and Multi-display" | ||
| Display and navigation module display | ||
| DVD image cannot be displayed on front screen. (Parking brake is on.)*3 | Proceed to "DVD Image Signal Circuit between Radio Receiver and Navigation ECU" | |
| Proceed to "DVD Image Signal Circuit between Navigation ECU and Multi-display" | ||
| Proceed to "Parking Brake Switch Circuit" | ||
| Radio receiver assembly | ||
| Display and navigation module display | ||
| Multi-display assembly | ||
| Navigation function switches can be operated while vehicle is being driven. | 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 | ||
| Screen does not change to night screen even when tail switch is turned on. | Proceed to "Display does not DIM when Light Control Switch is Turned ON" | |
| 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 the hybrid system 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.*4 | Proceed to "Voice Recognition Difficulty" | |
| Proceed to "Microphone Circuit between Microphone and Navigation ECU" | ||
| Display and navigation module display | ||
| Voice recognition is difficult.*5 | Proceed to "Voice Recognition Difficulty" | |
| Proceed to "Microphone Circuit between Microphone and Navigation ECU" | ||
| Telematics transceiver | ||
| Display and navigation module display | ||
| Voice is not recognized.*4 | 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 | ||
| Voice is not recognized.*5 | 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" | ||
| Telematics transceiver | ||
| Display and navigation module display | ||
| Reverse signal does not change in vehicle signal check mode. | Check shift indicator display on combination meter. | - |
| 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 | ||
| "VTR" is not displayed on system check mode screen. | Proceed to "Display Signal Circuit between Video Terminal and Multi-display Controller" | |
| Multi-display controller sub-assembly | ||
| Display and navigation module display |
| Symptom | Suspected Area | See page |
|---|---|---|
| No feedback force is provided by knob of remote touch. | Proceed to "No Feedback Force Provided by Knob of Remote Touch" | |
| Switch lights of remote touch do not illuminate. | Proceed to "Switch Lights of Remote Touch do not Illuminate" | |
| Switch lights of remote touch always illuminate or cannot be controlled using rheostat. | Proceed to "Switch Lights of Remote Touch Always Illuminate or cannot be Controlled Using Rheostat" | |
| Switch operation of remote touch is not accepted. | Proceed to "Switch Operation of Remote Touch not Accepted" | |
| Pointer does not reach screen edge. | Proceed to "Pointer does not Reach Screen Edge" | |
| Pointer displayed/not displayed repeatedly. | Proceed to "Pointer Displayed/not Displayed Repeatedly" | |
| Pointer is not displayed on screen or pointer does not move. | Proceed to "Pointer not Displayed on Screen or Pointer does not Move" | |
| Knob of remote touch moves spontaneously. | Proceed to "Knob of Remote Touch Moves Spontaneously" |
| Symptom | Suspected Area | See page |
|---|---|---|
| System cannot be operated by steering pad switch. | 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.*4 | 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 | ||
| Other caller cannot hear your voice, or your voice is too quiet or distorted.*5 | 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" | ||
| Telematics transceiver | ||
| Radio receiver assembly | ||
| Display and navigation module display |
| Symptom | Suspected Area | See page |
|---|---|---|
| "Fuel Consumption" icon is dimmed. | Check if other icons or items displayed on screen have any problems. | - |
| Display and navigation module display | ||
| Graph is not displayed on "Consumption" screen. | Recheck after starting hybrid system. | - |
| Display and navigation module display | ||
| Cruise range is not displayed on "Consumption" screen. | Turn power switch on (IG) and recheck. | - |
| Display and navigation module display | ||
| Graph is not updated on "Past record" screen even though "Clear" is selected. | Turn power switch on (IG) and recheck. | - |
| Display and navigation module display | ||
| Graph is not displayed on "Past record" screen. | Turn power switch on (IG) and recheck. | - |
| Display and navigation module display | ||
| Date is not displayed on "Past record" screen, or displayed date has a large margin of error. | Move vehicle to area where GPS signals can be received. | - |
| Proceed to "Check GPS & Vehicle Sensors" in Operation Check | ||
| Remove optional components that use radio waves. | - | |
| Navigation antenna assembly | ||
| Display and navigation module display |
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*1: w/o Parking Assist Monitor System
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*2: w/ Parking Assist Monitor System
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*3: w/ DVD Player
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*4: w/o G-BOOK System
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*5: w/ G-BOOK System