NAVIGATION SYSTEM (for DVD) PROBLEM SYMPTOMS TABLE

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.

Display Function
Symptom	Suspected Area	See page
Black screen (No image appears on navigation/audio screen).	Proceed to "Black Screen"	Click here
	Proceed to "Display Signal Circuit between Navigation ECU and Parking Assist ECU"	Click here
	Proceed to "Display Signal Circuit between Parking Assist ECU and Multi-display"	Click here
	Proceed to "Visual Mute Signal between Navigation ECU and Multi-display"	Click here
	Display and navigation module display	Click here
Display does not dim with tail switch on.	Proceed to "Display does not Dim when Light Control Switch is Turned ON"	Click here
	Multi-display assembly	Click here
	Display and navigation module display	Click here
Power does not turn off (Screen remains on).	Proceed to "Navigation ECU Power Source Circuit"	Click here
	Proceed to "Visual Mute Signal between Navigation ECU and Multi-display"	Click here
	Display and navigation module display	Click here
	Multi-display assembly	Click here
Screen is distorted.	Proceed to "Navigation ECU Power Source Circuit"	Click here
	Display and navigation module display	Click here
	Multi-display assembly	Click here
Screen flicker or color distortion.	Proceed to "Screen Flicker or Color Distortion"	Click here
	Proceed to "Display Signal Circuit between Navigation ECU and Parking Assist ECU"	Click here
	Proceed to "Display Signal Circuit between Parking Assist ECU and Multi-display"	Click here
	Proceed to "Visual Mute Signal between Navigation ECU and Multi-display"	Click here
	Display and navigation module display	Click here
DVD image cannot be displayed on front screen (Parking brake is on).*1	Proceed to "DVD Image Signal Circuit between Radio receiver and Navigation ECU"	Click here
	Proceed to "DVD Image Signal Circuit between Navigation ECU and Multi-Display"	Click here
	Proceed to "Parking Brake Switch Circuit"	Click here
	Radio receiver assembly	Click here
	Display and navigation module display	Click here
	Multi-display assembly	Click here
Navigation function switches can be operated while vehicle is running.	Display and navigation module display	Click here

Navigation Function
Symptom	Suspected Area	See page
Map disc cannot be inserted.	Proceed to "Map Disc cannot be Inserted"	Click here
Map disc cannot be inserted.	Navigation module board	Click here
Map disc cannot be ejected.	Navigation module board	Click here
Map display incomplete.	Proceed to "Map Display Incomplete"	Click here
Map display incomplete.	Navigation module board	Click here
Map disc reading error.	Proceed to "Map Disc Read Error"	Click here
Map disc reading error.	Navigation module board	Click here
Vehicle position mark deviates.	Proceed to "Vehicle Position Mark Deviates Greatly"	Click here
	GPS antenna	Click here
	Display and navigation module display	Click here
Cursor or map rotates when vehicle is stopped.	Proceed to "Cursor or Map Rotates When Vehicle is Stopped"	Click here
Cursor or map rotates when vehicle is stopped.	Display and navigation module display	Click here
Vehicle position mark is not updated.	Proceed to "Vehicle Position Mark is not Updated"	Click here
	Map disc	-
	Navigation module board	Click here
	Display and navigation module display	Click here
Current position display does not appear.	Proceed to "Current Position Display does not Appear"	Click here
	Map disc	-
	GPS antenna	Click here
	Navigation module board	Click here
	Display and navigation module display	Click here
GPS mark is not displayed.	Proceed to "GPS Mark is not Displayed"	Click here
	GPS antenna	Click here
	Display and navigation module display	Click here
Voice guidance does not function.	Proceed to "Voice Guidance does not Function"	Click here
	Proceed to "Speaker Circuit"	Click here
	Map disc	-
	Navigation module board	Click here
	Display and navigation module display	Click here
	Stereo component amplifier assembly	Click here
	Radio receiver assembly	Click here
Route cannot be calculated.	Proceed to "Route cannot be Calculated"	Click here
	Map disc	-
	Navigation module board	Click here
	Display and navigation module display	Click here
Voice recognition difficulty.	Proceed to "Voice Recognition Difficulty"	Click here
	Proceed to "Microphone Circuit between Microphone and Navigation ECU"	Click here
	Display and navigation module display	Click here
Voice is not recognized.	Proceed to "Voice is not Recognized"	Click here
	Proceed to "Microphone Circuit between Microphone and Navigation ECU"	Click here
	Proceed to "Steering Pad Switch Circuit"	Click here
	Display and navigation module display	Click here
Voice menu screen is not displayed.	Proceed to "Steering Pad Switch Circuit"	Click here
Voice menu screen is not displayed.	Display and navigation module display	Click here
Reverse signal does not change in the vehicle signal.	Display and navigation module display	Click here
"MIC" is not displayed on system check mode screen.	Proceed to "Microphone Circuit between Microphone and Navigation ECU"	Click here
"MIC" is not displayed on system check mode screen.	Display and navigation module display	Click here
"AUX" is not displayed on system check mode screen.	Proceed to "Sound Signal Circuit between Radio Receiver Assembly and Stereo Jack Adapter"	Click here
	Radio receiver assembly	Click here
	Display and navigation module display	Click here
"VTR" is not displayed on system check mode screen.*2	Proceed to "Display Signal Circuit between Video Terminal and Multi-display Controller"	Click here
	Multi-display controller sub-assembly	Click here
	Display and navigation module display	Click here

Remote Touch Function
Symptom	Suspected Area	See page
No feedback force provided by knob of remote touch.	Proceed to "No Feedback Force Provided by Knob of Remote Touch"	Click here
Switch lights of remote touch do not illuminate.	Proceed to "Switch Lights of Remote Touch do not Illuminate"	Click here
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"	Click here
Switch operation of remote touch is not accepted.	Proceed to "Switch Operation of Remote Touch not Accepted"	Click here
Pointer does not reach screen edge.	Proceed to "Pointer does not Reach Screen Edge"	Click here
Pointer displayed/not displayed repeatedly.	Proceed to "Pointer Displayed/not Displayed Repeatedly"	Click here
Pointer is not displayed on screen or pointer does not move.	Proceed to "Pointer not Displayed on Screen or Pointer does not Move"	Click here
Knob of remote touch moves spontaneously.	Proceed to "Knob of Remote Touch Moves Spontaneously"	Click here

Steering Pad Switch Function
Symptom	Suspected Area	See page
System cannot be operated by steering pad switch.	Proceed to "Steering Pad Switch Circuit"	Click here
System cannot be operated by steering pad switch.	Display and navigation module display	Click here
Illumination for steering pad switch does not come on with tail switch on.	Proceed to "Illumination Circuit"	Click here
	Display and navigation module display	Click here

"Bluetooth" Function
Symptom	Suspected Area	See page
Bluetooth inoperative.	Proceed to "Microphone Circuit between Microphone and Navigation ECU"	Click here
	Radio receiver assembly	Click here
	Display and navigation module display	Click here
Cellular phone registration failure, phone directory transfer failure.	Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure"	Click here
Cellular phone cannot send/receive.	Proceed to "Cellular Phone cannot Send / Receive"	Click here
	Proceed to "Steering Pad Switch Circuit"	Click here
	Radio receiver assembly	Click here
Cellular phone cannot make calls in a certain place.	Proceed to "Cannot Call in a Certain Place"	Click here
The other callers voice cannot be heard, is too quiet, or distorted.	Proceed to "The Other Callers Voice cannot be Heard, is Quiet, or Distorted"	Click here
	Radio receiver assembly	Click here
	Stereo component amplifier assembly	Click here
	Display and navigation module display	Click here
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"	Click here
	Proceed to "Microphone Circuit between Microphone and Navigation ECU"	Click here
	Radio receiver assembly	Click here

Fuel Consumption Function
Symptom	Suspected Area	See page
"Fuel Consumption" icon is dimmed.	Check if other icons or items displayed on screen have any problems.	-
"Fuel Consumption" icon is dimmed.	Display and navigation module display	Click here
Graph is not displayed on "Consumption" screen.	Recheck with engine running.	-
Graph is not displayed on "Consumption" screen.	Display and navigation module display	Click here
Cruise range is not displayed on "Consumption" screen.	Turn power switch on (IG) and recheck.	-
Cruise range is not displayed on "Consumption" screen.	Display and navigation module display	Click here
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	Click here
Graph is not displayed on "Past record" screen.	Turn power switch on (IG) and recheck.	-
Graph is not displayed on "Past record" screen.	Display and navigation module display	Click here
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.	-
	Operation Check - Check GPS & Vehicle Sensors	Click here
	Remove optional components that use radio waves.	-
	GPS antenna	Click here
	Display and navigation module display	Click here

*1: for DVD Changer Model
*2 : w/ Rear Seat Entertainment System