Tech Tips
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 | See page |
|---|---|---|
| The multi-display does not open when the power switch is turned on (ACC). | Proceed to "Multi-display Operation Check" in Operation Check | |
| Damage on the driving parts that drive the multi-display or foreign objects are caught. | ||
| Multi-display controller sub-assembly | ||
| Sensor wire | ||
| Display module board | ||
| The multi-display does not close when the power switch is turned off. | Proceed to "Multi-display Operation Check" in Operation Check | |
| Damage on the driving parts that drive the multi-display or foreign objects are caught. | ||
| Multi-display controller sub-assembly | ||
| Sensor wire | ||
| Display module board | ||
| Noise occurs when the multi-display opens, closes or tilts. | Damage on the driving parts that drive the multi-display or foreign objects are caught. | |
| Multi-display controller sub-assembly | ||
| When the power switch is turned on (ACC), the multi-display closes while opening. | Damage on the driving parts that drive the multi-display or foreign objects are caught. | |
| Multi-display controller sub-assembly | ||
| Sensor wire | ||
| Display module board | ||
| When the power switch is turned on (ACC), the multi-display stops while opening. | Damage on the driving parts that drive the multi-display or foreign objects are caught. | |
| Multi-display controller sub-assembly | ||
| Sensor wire | ||
| Display module board | ||
| The multi-display cannot be operated using the multi-display switch. | Proceed to "Multi-display Operation Check" in Operation Check | |
| Proceed to "Multi-display Switch Circuit" | ||
| Damage on the driving parts that drive the multi-display or foreign objects are caught. | ||
| Multi-display controller sub-assembly | ||
| Sensor wire | ||
| Display module board | ||
| The multi-display switch does not illuminate even when the light control switch is turned to the tail or head position. | Proceed to "Illumination Circuit" | |
| Black screen (No image appears on navigation/audio screen.) | 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" | ||
| Display and navigation module display | ||
| The multi-display does not dim when the light control switch is turned to the tail or head position. | Confirm that the tail cancel is off. | - |
| Proceed to "Display does not Dim when Light Control Switch is Turned ON" | ||
| Display module board | ||
| Multi-display | ||
| 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 | ||
| Display module board | ||
| Noise occurs when screens switch. | Proceed to "Visual Mute Signal Circuit between Navigation ECU and Multi-display" | |
| Display and navigation module display | ||
| Multi-display | ||
| Screen is distorted. | Proceed to "Navigation ECU Power Source Circuit" | |
| Display and navigation module display | ||
| Multi-display | ||
| Screen flicker or color distortion | 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 the front screen. (Parking brake is on.)*1 | 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 | ||
| Navigation function switches can be operated while vehicle is being driven. | Display and navigation module display |
*1: w/ DVD Changer
| Symptom | Suspected Area | See page |
|---|---|---|
| Map disc cannot be inserted. | Proceed to "Map Disc cannot be Inserted" | |
| Navigation module board | ||
| Map disc cannot be ejected. | Navigation module board | |
| Map display is incomplete. | Proceed to "Map Display Incomplete" | |
| Map disc | - | |
| Navigation module board | ||
| Map disc reading error. | Proceed to "Map Disc Read Error" | |
| Navigation module board | ||
| GPS mark is not displayed. | Proceed to "GPS Mark is not Displayed" | |
| Navigation antenna assembly | ||
| Display and navigation module display | ||
| 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 is Stopped" | |
| Display and navigation module display | ||
| Vehicle position mark moves in the opposite direction to the vehicle. | Check if the GPS mark is displayed on the map screen. | - |
| Proceed to "Cursor or Map Rotates When Vehicle is Stopped" | ||
| Display and navigation module display | ||
| Vehicle position mark is not updated. | Check if the GPS mark is displayed on the map screen. | - |
| Proceed to "Vehicle Position Mark is not Updated" | ||
| Map disc | - | |
| Navigation module board | ||
| Display and navigation module display | ||
| Current position display does not appear. | Proceed to "Current Position Display does not Appear" | |
| Map disc | - | |
| Navigation antenna assembly | ||
| Navigation module board | ||
| 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) | - |
| Map disc | - | |
| Navigation module board | ||
| Display and navigation module display | ||
| Voice guidance does not function. | Proceed to "Voice Guidance does not Function" | |
| Proceed to "Speaker Circuit" | ||
| Map disc | - | |
| Navigation module board | ||
| Display and navigation module display | ||
| Radio receiver assembly | ||
| Stereo component amplifier assembly | ||
| Route cannot be calculated. | Proceed to "Route cannot be Calculated" | |
| Map disc | - | |
| Navigation module board | ||
| Display and navigation module display | ||
| Screen does not change to night screen even when the tail switch is turned on. | Proceed to "Display does not Dim when Light Control Switch is Turned ON" | |
| 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 the vehicle signal check mode screen. | Check shift indicator display on combination meter | - |
| Display and navigation module display | ||
| Parking brake signal does not change in vehicle signal check mode. | Proceed to "Parking Brake Signal Circuit" | |
| Display and navigation module display. | ||
| "MIC" is not displayed on the system check mode screen. | Proceed to "Microphone Circuit between Microphone and Navigation ECU" | |
| Display and navigation module display | ||
| "AUX" is not displayed on the system check mode screen. | Proceed to "Sound Signal Circuit between Radio Receiver Assembly and Stereo Jack Adapter" | |
| Radio receiver 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 "Panel Switches do not Function" | |
| Proceed to "Steering Pad Switch Circuit" | ||
| Display and navigation module display | ||
| The steering pad switch does not illuminate even when the light control switch is turned to the tail or head position. | 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 |
| 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 with the hybrid system operating. | - |
| 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. | - |
| Reset the average fuel consumption value on the multi-information display in the combination meter assembly. | - | |
| Display and navigation module display |