NAVIGATION SYSTEM (for HDD) 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 "Navigation ECU Power Source Circuit"

Click here

Hard Disk Drive

Click here

Display and navigation module display

Click here

A message is displayed to inform the driver that the program cannot be read, and switch operation has no effect. Hard Disk Drive

Click here

Display and navigation module display

Click here

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"

Click here

Proceed to "Illumination Circuit"

Click here

Display and navigation module display

Click here

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"

Click here

Display and navigation module display

Click here

Panel switches do not function. Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Display and navigation module display

Click here

Touch panel switch does not function. Proceed to "Touch Panel Switch does not Function"

Click here

Display and navigation module display

Click here

Screen is distorted. Proceed to "Navigation ECU Power Source Circuit"

Click here

Display and navigation module display

Click here

Screen flicker or color distortion Proceed to "Screen Flicker or Color Distortion"

Click here

Display and navigation module display

Click here

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"

Click here

Proceed to "Parking Brake Switch Circuit"

Click here

Radio receiver assembly

Click here

Display and navigation module display

Click here

Navigation function switches can be operated while vehicle is being driven. Display and navigation module display

Click here

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"

Click here

Display and navigation module display

Click here

Navigation Function
Symptom Suspected Area See page
Vehicle position mark deviates. Proceed to "Vehicle Position Mark Deviates Greatly"

Click here

Navigation antenna assembly

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 Stopped"

Click here

Display and navigation module display

Click here

Vehicle position mark is not updated. Proceed to "Vehicle Position Mark is not Updated"

Click here

Display and navigation module display

Click here

GPS mark is not displayed. Proceed to "GPS Mark is not Displayed"

Click here

Navigation antenna assembly

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

Display and navigation module display

Click here

Radio receiver assembly

Click here

Stereo component amplifier assembly

Click here

Map display is incomplete. Hard disk drive

Click here

Display and navigation module display

Click here

Route cannot be calculated. Proceed to "Route cannot be Calculated"

Click here

Display and navigation module display

Click here

Navigation ECU cannot record memory point registration or each item setting. Hard disk drive

Click here

Display and navigation module display

Click here

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

Click here

Display and navigation module display

Click here

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

Click here

Display and navigation module display

Click here

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

Click here

Display and navigation module display

Click here

Voice menu screen is not displayed. Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Display and navigation module display

Click here

Voice recognition is difficult. 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 "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Proceed to "Voice is not Recognized"

Click here

Proceed to "Microphone Circuit between Microphone and Navigation ECU"

Click here

Display and navigation module display

Click here

Reverse signal does not change in vehicle signal check mode. Proceed to "Reverse Signal Circuit"

Click here

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

Display and navigation module display

Click here

"AUX" is not displayed on system check mode screen. Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

Radio receiver assembly

Click here

Display and navigation module display

Click here

Steering Pad Switch Function
Symptom Suspected Area See page
System cannot be operated by steering pad switch. Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

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 is 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

Display and navigation module display

Click here

Cellular phone cannot call in a certain place. Proceed to "Cannot Call in a Certain Place"

Click here

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"

Click here

Radio receiver assembly

Click here

Display and navigation module display

Click here

Stereo component amplifier assembly

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

Display and navigation module display

Click here