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Problem Symptoms Table

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Display Function 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See
Pressing PWR switch does not turn on system Proceed to "Pressing Power Switch does not Turn ON System" PRESSING POWER SWITCH DOES NOT TURN ON SYSTEM 
Multi-display power source circuit MULTI-DISPLAY POWER SOURCE CIRCUIT 
AVC-LAN circuit AVC-LAN CIRCUIT 
Multi-display MULTI-DISPLAY 
Black screen (No image appears on navigation/audio screen) Proceed to "No Image Appears on Multi-display" NO IMAGE APPEARS ON MULTI-DISPLAY 
Multi-display power source circuit MULTI-DISPLAY POWER SOURCE CIRCUIT 
Illumination circuit ILLUMINATION CIRCUIT 
AVC-LAN circuit AVC-LAN CIRCUIT 
Multi-display MULTI-DISPLAY 
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" ILLUMINATION FOR PANEL SWITCH DOES NOT COME ON WITH TAIL SWITCH ON 
Illumination circuit ILLUMINATION CIRCUIT 
Multi-display MULTI-DISPLAY 
Display does not dim (Night Screen) with TAIL switch on Proceed to "Display does not DIM when Light Control Switch is Turned ON" DISPLAY DOES NOT DIM WHEN LIGHT CONTROL SWITCH IS TURNED ON 
Illumination circuit ILLUMINATION CIRCUIT 
Multi-display MULTI-DISPLAY 
Power does not turn off (The screen remains on) Multi-display power source circuit MULTI-DISPLAY POWER SOURCE CIRCUIT 
Multi-display MULTI-DISPLAY 
Panel switches do not function Proceed to "Panel Switches do not Function" PANEL SWITCHES DO NOT FUNCTION 
Steering pad switch circuit STEERING PAD SWITCH CIRCUIT 
Multi-display power source circuit MULTI-DISPLAY POWER SOURCE CIRCUIT 
Multi-display MULTI-DISPLAY 
Touch panel switch does not function Proceed to "Touch Panel Switch does not Function" TOUCH PANEL SWITCH DOES NOT FUNCTION 
Steering pad switch circuit STEERING PAD SWITCH CIRCUIT 
Multi-display power source circuit MULTI-DISPLAY POWER SOURCE CIRCUIT 
Multi-display MULTI-DISPLAY 
Navigation screen is not displayed Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY 
Map disc -
Navigation ECU NAVIGATION ECU 
Multi-display MULTI-DISPLAY 
Navigation screen flicker or color distortion Proceed to "Screen Flicker or Color Distortion" SCREEN FLICKER OR COLOR DISTORTION 
Proceed to "Display Signal Circuit between Navigation ECU and Multi-display" DISPLAY SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY 
Navigation ECU NAVIGATION ECU 
Multi-display MULTI-DISPLAY 
DVD image cannot be displayed on multi-display (Parking brake is on)*1 Proceed to "Display Signal Circuit between Multi-display and Radio Receiver" DISPLAY SIGNAL CIRCUIT BETWEEN MULTI-DISPLAY AND RADIO RECEIVER 
Parking brake switch circuit PARKING BRAKE SWITCH CIRCUIT 
Radio Receiver REMOVAL
Multi-display MULTI-DISPLAY 
Navigation function switches can be operated while vehicle is running Proceed to "Vehicle Speed Signal Circuit between Multi-display and Combination Meter" VEHICLE SPEED SIGNAL CIRCUIT BETWEEN MULTI-DISPLAY AND COMBINATION METER 

Navigation Function 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See
Map disc cannot be inserted Proceed to "Map Disc cannot be Inserted" MAP DISC CANNOT BE INSERTED 
Navigation ECU power source circuit NAVIGATION ECU POWER SOURCE CIRCUIT 
Navigation ECU NAVIGATION ECU 
Map disc cannot be ejected Proceed to "Map Disc cannot be Ejected" MAP DISC CANNOT BE EJECTED 
Navigation ECU power source circuit NAVIGATION ECU POWER SOURCE CIRCUIT 
Navigation ECU NAVIGATION ECU 
Vehicle position mark deviates greatly Proceed to "Vehicle Position Mark Deviates Greatly" VEHICLE POSITION MARK DEVIATES GREATLY 
GPS antenna NAVIGATION ANTENNA 
Navigation ECU NAVIGATION ECU 
Cursor or map rotates when vehicle is stopped Proceed to "Cursor or Map Rotates when Vehicle is Stopped" CURSOR OR MAP ROTATES WHEN VEHICLE STOPPED 
Navigation ECU NAVIGATION ECU 
Vehicle position mark is not updated Proceed to "Vehicle Position Mark is not Updated" VEHICLE POSITION MARK IS NOT UPDATED 
Map disc -
Navigation ECU NAVIGATION ECU 
Current position display does not appear Proceed to "Current Position Display does not Appear" CURRENT POSITION DISPLAY DOES NOT APPEAR 
Map disc -
GPS antenna NAVIGATION ANTENNA 
Navigation ECU NAVIGATION ECU 
GPS Mark is not displayed Proceed to "GPS Mark is not Displayed" GPS MARK IS NOT DISPLAYED 
GPS antenna NAVIGATION ANTENNA 
Navigation ECU NAVIGATION ECU 
Voice guidance does not function Proceed to "Voice Guidance does not Function" VOICE GUIDANCE DOES NOT FUNCTION 
Navigation voice circuit NAVIGATION VOICE CIRCUIT 
Map disc -
Navigation ECU NAVIGATION ECU 
Stereo component amplifier REMOVAL
Map display incomplete Proceed to "Map Display Incomplete" MAP DISPLAY INCOMPLETE 
Map disc -
Navigation ECU NAVIGATION ECU 
Route cannot be calculated Proceed to "Route cannot be Calculated" ROUTE CANNOT BE CALCULATED 
Map disc -
Navigation ECU NAVIGATION ECU 
Voice recognition difficulty Proceed to "Voice Recognition Difficulty" VOICE RECOGNITION DIFFICULTY 
Navigation ECU NAVIGATION ECU 
Voice is not recognized Proceed to "Voice is not Recognized" VOICE IS NOT RECOGNIZED 
Proceed to "Microphone circuit between Overhead J/B and Multi-display" MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY 
Proceed to "Microphone circuit between Multi-display and Navigation ECU" MICROPHONE CIRCUIT BETWEEN MULTI-DISPLAY AND NAVIGATION ECU 
Steering pad switch circuit STEERING PAD SWITCH CIRCUIT 
Microphone MICROPHONE
Microphone amplifier MICROPHONE
Navigation ECU NAVIGATION ECU 
Speed signal does not change in the navigation check mode Proceed to "Vehicle Speed Signal Circuit between Navigation ECU and Multi-display" VEHICLE SPEED SIGNAL CIRCUIT BETWEEN NAVIGATION ECU AND MULTI-DISPLAY 
Reverse signal does not change in the navigation check mode Proceed to "Reverse Signal Circuit" REVERSE SIGNAL CIRCUIT 

Steering Pad Switch Function 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See
The system cannot be operated by the steering pad switch Steering pad switch circuit STEERING PAD SWITCH CIRCUIT 
Radio receiver REMOVAL
Illumination for steering pad switch does not come on with tail switch on Illumination circuit ILLUMINATION CIRCUIT 
Radio receiver REMOVAL

"Bluetooth" Function 

PROBLEM SYMPTOMS CHART

Symptom Suspected Area See
Cellular phone registration failure, phone directory transfer failure Proceed to "Cellular Phone Registration Failure, Phone Directory Transfer Failure" CELLULAR PHONE REGISTRATION FAILURE, PHONE DIRECTORY TRANSFER FAILURE 
Cellular phone cannot send/receive Proceed to "Cellular Phone cannot Send/Receive" CELLULAR PHONE CANNOT SEND/RECEIVE 
Steering pad switch circuit STEERING PAD SWITCH CIRCUIT 
Radio receiver REMOVAL
Cannot call in a certain place Proceed to "Cannot call in a Certain Place" CANNOT CALL IN A CERTAIN PLACE 
The 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" THE OTHER CALLER'S VOICE CANNOT BE HEARD, IS TOO QUIET, OR DISTORTED 
Multi-display MULTI-DISPLAY 
The other caller cannot hear your voice, or your voice is too quiet or distorted Proceed to "The Other Caller cannot Heard Your Voice, or Your Voice is too Quiet or Distorted" THE OTHER CALLER CANNOT HEAR YOUR VOICE, OR YOUR VOICE IS TOO QUIET OR DISTORTED 
Proceed to "Microphone circuit between Overhead J/B and Multi-display" MICROPHONE CIRCUIT BETWEEN OVERHEAD J/B AND MULTI-DISPLAY 
Microphone MICROPHONE
Microphone amplifier MICROPHONE
Multi-display MULTI-DISPLAY