NAVIGATION SYSTEM(except Sedan) PROBLEM SYMPTOMS TABLE

Tip:
  • 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.

Table 1. Display Function

Symptom

Suspected Area

Link

Black screen (no image appears on navigation/audio screen)

Proceed to "Black Screen"

Click here

Proceed to "Check Software Error History" in Operation Check

Click here

Proceed to "Display Signal Circuit between Radio Receiver and Extension Module"*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

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

Proceed to "Illumination Circuit"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Power does not turn off (screen remains on)

Proceed to "Radio Receiver Power Source Circuit"

Click here

Radio and display receiver assembly

Click here

Screen is distorted

Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "Display Signal Circuit between Radio Receiver and Extension Module"*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Screen flicker or color distortion

Proceed to "Screen Flicker or Color Distortion"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Proceed to "Display Signal Circuit between Radio Receiver and Extension Module"*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

  • *1: Before proceeding with the following procedure, activate and deactivate diagnostic mode by operating the panel switches. This will correct the display signal.

Table 2. Panel Switch and Touch Switch Function

Symptom

Suspected Area

Link

Illumination for panel switches does not come on with 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

Radio and display receiver assembly

Click here

Panel switches do not function

Proceed to "Panel Switches do not Function"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Touch panel switch does not function

Proceed to "Touch Panel Switch does not Function"

Click here

Proceed to "Radio Receiver Power Source Circuit"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Navigation function switches can be operated while vehicle is being driven

Proceed to "Parking Brake Switch Circuit"

Click hereClick here

Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"

Click hereClick here

Navigation ECU

Click here

Radio and display receiver assembly

Table 3. Steering Pad Switch Function

Symptom

Suspected Area

Link

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

Radio and display receiver assembly

Click here

Illumination for steering pad switch does not come on with tail switch on

Proceed to "Illumination Circuit"

Click here

Table 4. Picture Slide Show Function

Symptom

Suspected Area

Link

Image data in USB device cannot be displayed

Check that the file extension of the data is JPG or JPEG

-

Check that the file name is 32 characters or less and available language is used

-

Check that the image data size is 10 MB or less

-

Check that the file system of the USB device is FAT16 or FAT32

-

Proceed to "USB Audio System Recognition/Play Error"

Click here

Proceed to "Display Signal Circuit between Radio Receiver and Extension Module"*1

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Message indicating that USB device cannot be accessed is displayed

Check that the USB device has not been disconnected while the extension module is recognizing it

-

Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

  • *1: Before proceeding with the following procedure, activate and deactivate diagnostic mode by operating the panel switches. This will correct the display signal.

Table 5. Navigation Function

Symptom

Suspected Area

Link

Vehicle position mark deviates

Proceed to "Vehicle Position Mark Deviates Greatly"

Click here

No. 1 navigation antenna cord sub-assembly

Click here

Navigation antenna assembly

Click here

Navigation ECU

Click here

Vehicle position mark deviates from correct position and does not return to correct position

Proceed to "Vehicle Position Mark Deviates Greatly"

Click here

No. 1 navigation antenna cord sub-assembly

Click here

Navigation antenna assembly

Click here

Navigation ECU

Click here

Vehicle position mark moves slow or fast

Proceed to "Vehicle Position Mark Deviates Greatly"

Click here

Drive the vehicle for sensor learning (at a place where GPS signals can be received, drive the vehicle clockwise and counterclockwise in at least a 200 meter square 2 times or more)

-

No. 1 navigation antenna cord sub-assembly

Click here

Navigation antenna assembly

Click here

Navigation ECU

Click here

Cursor or map rotates when vehicle is stopped

Proceed to "Cursor or Map Rotates when Vehicle Stopped"

Click here

Navigation ECU

Click here

Vehicle position mark moves in the opposite direction to the vehicle

Proceed to "Cursor or Map Rotates when Vehicle Stopped"

Click here

Proceed to "Reverse Signal Circuit"

Click here

Navigation ECU

Click here

Vehicle position mark is not updated

Navigation ECU

Click here

Current position display does not appear

No. 1 navigation antenna cord sub-assembly

Click here

Navigation antenna assembly

Click here

Navigation ECU

Click here

Voice guidance does not function

Proceed to "Voice Guidance does not Function"

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Navigation Voice Circuit between Radio Receiver and Stereo Component Amplifier"*1

Click here

Proceed to "Navigation Voice Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Speaker Circuit"

Click hereClick here

Stereo component amplifier assembly*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Map display is incomplete

Proceed to "Map Display Incomplete"

Click here

Proceed to "Display Signal Circuit between Radio Receiver and Extension Module"*2

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Route cannot be calculated

Proceed to "Route cannot be Calculated"

Click here

Navigation ECU

Click here

Extension module cannot record memory point registration or each item setting

Navigation ECU

Click here

Reverse signal does not change in vehicle signal check mode

Proceed to "Reverse Signal Circuit"

Click here

Radio and display receiver assembly

Click here

Parking brake switch signal does not change in vehicle signal check mode

Proceed to "Parking Brake Switch Circuit"

Click hereClick here

Radio and display receiver assembly

Click here

  • *1: for 9 Speakers

  • *2: Before proceeding with the following procedure, activate and deactivate diagnostic mode by operating the panel switches. This will correct the display signal.

Table 6. General Audio Function

Symptom

Suspected Area

Link

Pressing power switch does not turn on system

Proceed to "Radio Receiver Power Source Circuit"

Click here

Radio and display receiver assembly

Click here

No sound can be heard from speakers

Proceed to "No Sound can be Heard from Speakers"

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Speaker Circuit"

Click hereClick here

Stereo component amplifier assembly*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Abnormal noise occurs

Proceed to "Noise Occurs"

Click here

Stereo component amplifier assembly*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Sound quality is bad in all modes (volume is too low)

Proceed to "Poor Sound Quality in All Modes (Low Volume)"

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Click here

Proceed to "Mute Signal Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Component Amplifier"*1

Click here

Proceed to "Sound Signal Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Speaker Circuit"

Click hereClick here

Stereo component amplifier assembly*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

ASL does not function

Check that the ASL function is "On"

-

Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"*2

Click hereClick here

Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"*1

Click here

Stereo component amplifier assembly*1

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

  • *1: for 9 Speakers

  • *2: for 6 Speakers

Table 7. FM or AM Radio Function

Symptom

Suspected Area

Link

Radio broadcast cannot be received or poor reception

Proceed to "Radio Broadcast cannot be Received or Poor Reception"

Click hereClick here

Radio broadcast can be received but radio station cannot be displayed (some radio stations do not provide their name information)

Radio and display receiver assembly

Click here

Table 8. CD Player Function

Symptom

Suspected Area

Link

CD cannot be inserted/played or CD is ejected right after insertion

Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "CD cannot be Inserted / Played or CD is Ejected Right After Insertion"

Click here

CD cannot be ejected

Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "CD cannot be Ejected"

Click here

CD sound skips

Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "CD Sound Skips"

Click here

Sound quality is bad only when CD is played (volume is too low)

Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "Sound Quality is Bad Only when CD is Played (Volume is Too Low)"

Click here

Table 9. AUX Function

Symptom

Suspected Area

Link

External device sound cannot be heard or sound quality is bad (stereo jack is used)

Proceed to "Sound Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio and display receiver assembly

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

No. 1 stereo jack adapter assembly

Click here

Radio and display receiver assembly

Click here

Table 10. Voice Recognition Function

Symptom

Suspected Area

Link

Voice menu screen is not displayed (voice recognition function does not turn on)

Check if the voice recognition prompts function is "On"

-

Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Radio and display receiver assembly

Click here

When voice recognition switch is pressed, a short beep is emitted but voice cannot be recognized properly

Proceed to "Voice is not Recognized"

Click here

Proceed to "Microphone Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Table 11. "Bluetooth" Hands-free Function

Symptom

Suspected Area

Link

Bluetooth is inoperative

Proceed to "Microphone Circuit between Radio Receiver and Extension Module"

Click here

Proceed to "Microphone Circuit between Microphone and Radio Receiver"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Cellular phone registration failure

Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Cellular phone cannot make outgoing/incoming calls or call in a certain place

Proceed to "Cellular Phone cannot Make Outgoing/Incoming Calls"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Message that prompts to check the cellular phone is displayed

Proceed to "Cellular Phone cannot Make Outgoing/Incoming Calls"

Click here

Navigation ECU

Click here

Phonebook data cannot be transferred manually or automatically

Check the automatically download contact setting

-

When transferring phonebook data, OBEX authentication may be required

Enter "1234" into the "Bluetooth" phone

-

Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Click here

Navigation ECU

Click here

Volume of other caller's voice is not at an appropriate volume level, there is noise, sound quality is poor or other caller's voice cannot be heard

Proceed to "The Other Caller's Voice cannot be Heard, is too Quiet, or Distorted"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Other caller cannot hear your voice at an appropriate volume level, there is noise or an echo, sound quality is poor or other caller cannot hear your voice

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 Radio Receiver"

Click here

Proceed to "Microphone Circuit between Radio Receiver and Extension Module"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

E-mail/SMS cannot be received or sent

Check whether messages can be received/sent using the cellular phone

-

Check that the phone is registered as a hands-free device

-

Check the sending and receiving e-mails/SMS via the navigation system setting

-

Proceed to "Cellular Phone Registration Failure, Phonebook Transfer Failure"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Table 12. "Bluetooth" Audio Function

Symptom

Suspected Area

Link

Portable player cannot be registered

Proceed to "Portable Player cannot be Registered"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Portable player cannot be connected manually/automatically

Proceed to "Portable Player cannot be Registered"

Click here

Proceed to "Portable Player cannot be Connected Manually/Automatically"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Cellular phone with portable audio function cannot be recognized as "Bluetooth" audio device even when connected using "Bluetooth"

Proceed to "Portable Player cannot be Registered"

Click here

Proceed to "Portable Player cannot be Connected Manually/Automatically"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Sound of portable player cannot be heard from speakers, or sound is low

Proceed to "Sound of Portable Player cannot be Heard from Speakers or Sound is Low"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Portable player does not play even after "Bluetooth" audio mode is selected

Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Portable player does not play

Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Track information such as track number, track name and elapsed play time and playlist is not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Operation switches for portable player such as play, pause, repeat, random and scan are not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Battery condition of portable player is not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

"Bluetooth" signal condition is not displayed

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Portable player cannot pause, select file, fast forward, fast rewind, play at random or scan

Proceed to "Portable Player cannot be Operated Using In-vehicle Device or Track Information is not Displayed on In-vehicle Device"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Noise occurs or sound skips when portable player plays

Proceed to "Noise Occurs or Sound Skips when Portable Player Plays"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Registered device cannot be deleted

Proceed to "Registered Device cannot be Deleted"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Table 13. USB Audio System Function

Symptom

Suspected Area

Link

USB audio system sound cannot be heard or sound quality is bad (USB connector is used)

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

USB device or "iPod" is not recognized

Proceed to "USB Audio System Recognition/Play Error"

Click here

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Track information such as track, artist and album names is not displayed

Proceed to "USB Audio System Recognition/Play Error"

Click here

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

USB device or "iPod" is recognized but cannot play nor play in a sorted order

Proceed to "USB Audio System Recognition/Play Error"

Click here

Proceed to "Data Signal Circuit between Stereo Jack Adapter and Extension Module"

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Album cover art cannot be displayed

Check that display cover art on the "iPod" settings screen is set to on

-

Check that a JPEG file is used for the cover art

-

"iPod" battery cannot be charged

Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Table 14. DAB (Digital Audio Broadcast) Function (w/ DAB Function)

Symptom

Suspected Area

Link

DAB-DAB Link, DAB-FM Link or Time-Shift cannot be used

Check if each function is set to on

-

Radio and display receiver assembly

Click here

Table 15. Connected Services (w/ Connected Services)

Symptom

Suspected Area

Link

Connection to the search engine fails

Proceed to "Connected Services Outline" in System Description

Click here

Check if each item is set correctly

-

Check if the cellular phone is in standby mode

-

Check if the cellular phone is compatible with the connected service

-

Navigation ECU

Click here

POIs are not displayed on the list (when using a USB device)

Check if POIs are stored in USB device root folders

-

Check that POIs with extension .csi are stored in the USB device

-

Check that 8.3 filename is used for POIs

-

Check that the file size of POIs is not 400 kb or more

-

Check that nothing has been changed for downloaded POIs other than renaming them

-

Navigation ECU

Click here

POIs cannot be registered to the navigation system

Check if the maximum number of memory points has been registered

-

Check that nothing has been changed for downloaded POIs other than renaming them

-

Navigation ECU

Click here

Table 16. Fuel Consumption Function

Symptom

Suspected Area

Link

Graph is not displayed on "Trip Information" screen

Recheck with the engine running

-

Radio and display receiver assembly

Click here

Cruise range is not displayed on "Trip Information" screen

Turn the ignition switch to ON and recheck

-

Radio and display receiver assembly

Click here

Graph is not updated on "Past record" screen even though "Clear" is selected

Turn the ignition switch to ON and recheck

-

Radio and display receiver assembly

Click here

Graph is not displayed on "Past record" screen

Turn the ignition switch to ON and recheck

-

Radio and display receiver assembly

Click here