NAVIGATION SYSTEM PROBLEM SYMPTOMS TABLE

Note


  • Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

    Click here

  • When replacing the radio receiver assembly or navigation ECU, always replace it with a new one. If a radio receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:


    • A communication malfunction DTC may be stored.

    • The radio receiver assembly or navigation ECU may not operate normally.

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.

General Function
Symptom Suspected Area Link
The navigation function and voice recognition function cannot be used, The above symptoms occur after repeatedly restarting with the engine switch on (ACC) Check that "MEU" is displayed on the System Check Mode screen and it is displayed as "OK"

Click here

Check that the part number of the navigation ECU is correct (check that an imitation part is not connected) -
Check the radio receiver assembly and navigation ECU software version, update to the latest software version if it is available and check for the symptoms again -
Proceed to "Start Up Signal Circuit between Radio Receiver Assembly and Navigation ECU"

Click here

Navigation ECU

Click here

Radio receiver assembly

Click here

The handwriting input screen is not displayed or potential matches for the character currently being entered and potential matches for the next character are not displayed* Radio receiver assembly

Click here


Display Function
Symptom Suspected Area Link
Black screen (no image appears on the navigation/audio screen) Proceed to "Black Screen"

Click here

Proceed to "Check Software Error History" in Operation Check

Click here

Proceed to "Visual Mute Signal Circuit between Radio Receiver Assembly and Multi-display assembly"

Click here

If the view behind the vehicle is displayed normally on the multi-display assembly when the engine is running and the shift position in R, replace the radio receiver assembly

Click here

Replace the radio receiver assembly when a music disc is inserted into the radio receiver assembly and audio does not play

Click here

Replace the radio receiver assembly when the start screen description sound does not play after pressing the remote touch "MENU" switch

Click here

Replace the radio receiver assembly when the determination sound or failure sound does not sound after pressing or double tapping the remote touch screen

Click here

Multi-display assembly

Click here

Radio receiver assembly

Click here

A message is displayed to inform the driver that the program cannot be read, and the system cannot be operated using the remote touch Navigation ECU

Click here

Radio receiver assembly

Click here

A white or blue screen remains displayed after the engine switch is turned on (ACC) Replace the radio receiver assembly when the map screen is displayed after pressing the remote touch "MAP" switch

Click here

After checking that the audio screen is normal, press the remote touch "MAP" switch and replace the navigation ECU if only the navigation screen output is abnormal

Click here

If a DVD disc is inserted into the radio receiver assembly and the image playback is abnormal, the navigation screen display is abnormal after pressing the remote touch "MAP" switch, and the view behind the vehicle feed is displayed normally on the multi-display assembly when the engine is running and the shift position in R, replace the radio receiver assembly

Click here

If a DVD disc is inserted into the radio receiver assembly and the image playback is abnormal, the navigation screen display is abnormal after pressing the remote touch "MAP" switch, and the view behind the vehicle feed displays a white or blue screen when the engine is running and the shift position in R, replace the multi-display assembly

Click here

Multi-display assembly

Click here

Navigation ECU

Click here

Radio receiver assembly

Click here

The multi-display assembly does not dim when the tail switch is turned on Proceed to "Display does not Dim when Light Control Switch is Turned ON"

Click here

Multi-display assembly

Click here

Radio receiver assembly

Click here

Power does not turn off (screen remains on) Proceed to "Radio Receiver Assembly Power Source Circuit"

Click here

Multi-display assembly

Click here

Radio receiver assembly

Click here

Noise occurs when screen changes Proceed to "Visual Mute Signal Circuit between Radio Receiver Assembly and Multi-display assembly"

Click here

Multi-display assembly

Click here

Radio receiver assembly

Click here

Screen is distorted Proceed to "Radio Receiver Assembly Power Source Circuit"

Click here

Proceed to "Visual Mute Signal Circuit between Radio Receiver Assembly and Multi-display assembly"

Click here

Multi-display assembly

Click here

Radio receiver assembly

Click here

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

Click here

Proceed to "Visual Mute Signal Circuit between Radio Receiver Assembly and Multi-display assembly"

Click here

Radio receiver assembly

Click here

Navigation function switches can be operated while vehicle being driven Proceed to "Check Vehicle Signal" in Operation Check

Click here

Proceed to "Parking Brake Switch Circuit"

Click here

Navigation ECU

Click here

Radio receiver assembly

Click here

Valet Mode cannot be canceled* Proceed to "Valet Mode Cancel" in Operation Check

Click here

Radio receiver assembly

Click here


Panel Switch Function
Symptom Suspected Area Link
Illumination for panel switches does not come on when 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 receiver assembly

Click here

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

Click here

Radio receiver assembly

Click here

Radio receiver assembly does not dim at night Radio receiver assembly

Click here

Remote Touch Function
Symptom Suspected Area Link
Remote touch screen does not generate vibration feedback Proceed to "Remote Touch Screen Does not Generate Vibration Feedback"

Click here

Switch lights of remote touch (remote operation controller assembly) do not illuminate Proceed to "Switch Lights of Remote Touch do not Illuminate"

Click here

Switch lights of remote touch (remote operation controller assembly) 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

Remote touch screen switch illumination does not turn on Refer to the Lighting System (INT) section

Click here

Switch operation of remote touch (remote operation controller assembly) is not accepted Proceed to "Switch Operation of Remote Touch not Accepted"

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

Customize setting cannot be set with remote touch (remote operation controller assembly) Turn the engine switch on (ACC) and perform the procedure again -
Remote touch (remote operation controller assembly)

Click here

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 receiver assembly

Click here

Illumination for steering pad switch does not come on with tail switch on Proceed to "Illumination Circuit"

Click here

Radio receiver assembly

Click here

Navigation Function
Symptom Suspected Area Link
"No GPS signal" mark is displayed*3 Proceed to ""No GPS signal" mark is displayed"

Click here

Navigation antenna assembly

Click here

Navigation ECU

Click here

Date and time on navigation screen are different from actual date and time Proceed to ""No GPS signal" mark is displayed"

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 ""No GPS signal" mark is displayed"

Click here

Proceed to "Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter"

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 "Check Vehicle Signal" in Operation Check

Click here

Proceed to "Reverse Signal Circuit between Radio Receiver Assembly and Navigation ECU"

Click here

Navigation ECU

Click here

Vehicle position mark deviates from and returns to correct position repeatedly even though "No GPS signal" mark is not displayed*3 Proceed to ""No GPS signal" mark is displayed"

Click here

Proceed to "Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter"

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) -
Navigation antenna assembly

Click here

Navigation ECU

Click here

Vehicle position mark deviates from and returns to correct position repeatedly*4 Proceed to "Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter"

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) -
Navigation antenna assembly

Click here

Navigation ECU

Click here

Vehicle position mark moves slow or fast Proceed to ""No GPS signal" mark is displayed"

Click here

Proceed to "Vehicle Speed Signal Circuit between Navigation ECU and Combination Meter"

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 Stereo Component Amplifier and Telematics Transceiver"*1

Click here

Proceed to "Speaker Circuit"

Click here

Telematics transceiver*1

Click here

Stereo component amplifier assembly

Click here

Navigation ECU

Click here

Radio receiver assembly

Click here

Map display is incomplete Navigation ECU

Click here

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

Click here

Navigation ECU

Click here

Navigation system cannot record memory point registration or each item setting Navigation ECU

Click here

A message indicating to wait for a while because of low temperature is displayed Start the engine and increase cabin temperature (near navigation ECU) -
Navigation ECU

Click here

A message is displayed because map data cannot be read, and current position screen is not displayed If a message appears only when driving on rough roads, check if the message disappears when vehicle is stopped -
Navigation ECU

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 the smallest (a scale that shows a large area) -
Navigation ECU

Click here

The "Searching Gas Station in Low Fuel Function" does not function even when the remaining fuel is low*2 Check that the function is not turned off in the multi-display assembly settings -
Radio receiver assembly

Click here

Customizable parameters cannot be changed (customizable parameters can be changed by using the GTS) Radio receiver assembly

Click here

Reverse signal does not change in vehicle signal check mode Check the shift indicator display on the combination meter assembly -
Radio receiver assembly

Click here

Parking brake switch signal does not change in vehicle signal check mode Proceed to "Parking Brake Switch Circuit"

Click here

Radio receiver assembly

Click here


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 here

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

Click here

Radio broadcast can be displayed but radio broadcast cannot be heard from speakers Check the volume settings -
Radio receiver assembly

Click here

Digital Audio Broadcast (DAB) Function (w/ DAB Function)
Symptom Suspected Area Link
Sound cannot be heard/sound quality is poor/loud noise occurs only when DAB function is used (when receiving DAB-TA, sound temporarily may not be heard) Operate the volume switch and turn up the volume -
Proceed to "Check DAB Reception" in Operation Check

Click here

Antenna cord sub-assembly

Click here

No. 2 antenna cord sub-assembly

Click here

Quarter window assembly RH

Click here

Digital audio broadcasting antenna assembly

Click here

Window glass antenna wire -
Radio receiver assembly

Click here

When time shift mode is not selected, DAB-TA cannot be used Check if DAB-TA function is set to on -
Check that "TP" icon is displayed on the screen -
Check if similar symptoms occur with another vehicle -
Radio receiver assembly

Click here

DAB-DAB Link, DAB-FM Link or Time-Shift cannot be used Check if each function is set to on -
Check if similar symptoms occur when receiving other broadcasts -
Radio receiver assembly

Click here

Digital TV Function (w/ Digital TV Function)
Symptom Suspected Area Link
While vehicle is stopped, digital TV image is not displayed Proceed to "Parking Brake Switch Circuit"

Click here

Check that the parental lock is unlocked -
Check if similar symptoms occur with another vehicle -
Proceed to "TV Screen is Distorted"

Click here

Image stops, noise occurs, or screen color is distorted only when watching digital TV Check the settings of the display quality adjustment screen (check that each setting is set to the default) -
Check if similar symptoms occur with another broadcast -
Proceed to "TV Screen is Distorted"

Click here

Sound cannot be heard, sound quality is poor or sound is interrupted only when watching digital TV Check the settings of the sound quality adjustment screen (check that each setting is set to the default) -
Check if similar symptoms occur with another broadcast -
Proceed to "TV Screen is Distorted"

Click here

Channels cannot be set (broadcast stations cannot be found by scanning) Move the vehicle to a place where the reception is good and check again -
Proceed to "TV Screen is Distorted"

Click here

Broadcast station names are not displayed Check if similar symptoms occur with another broadcast -
Move the vehicle to a place where the reception is good and check again -
Proceed to "TV Screen is Distorted"

Click here

Parental lock setting cannot be changed On the key code input screen, press the left arrow switch 10 times and reset the key code -
General Audio Function
Symptom Suspected Area Link
Pressing power switch does not turn on system Proceed to "Radio Receiver Assembly Power Source Circuit"

Click here

Radio 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 Stereo Component Amplifier and Telematics Transceiver"*

Click here

Proceed to "Speaker Circuit"

Click here

Telematics transceiver*

Click here

Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here

Abnormal noise occurs Proceed to "Noise Occurs"

Click here

Proceed to "Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver"*

Click here

Telematics transceiver*

Click here

Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here

Sound quality is bad in all modes (volume is too low) Check that the ASL function is off -
Proceed to "Poor Sound Quality in All Modes (Low Volume)"

Click here

Proceed to "Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver"*

Click here

Proceed to "Speaker Circuit"

Click here

Telematics transceiver*

Click here

Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here

ASL does not function Check that the ASL function is on -
Proceed to "Vehicle Speed Signal Circuit between Stereo Component Amplifier and Combination Meter"

Click here

Stereo component amplifier assembly

Click here

Radio receiver assembly

Click here


Disc Player Function
Symptom Suspected Area Link
Disc cannot be played or player does not function with disc Proceed to "Disc Player Outline" in System Description and check if the disc is compatible with the disc player

Click here

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

Click here

Radio receiver assembly

Click here

Disc cannot be inserted/played or disc is ejected right after insertion Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "Disc cannot be Inserted or is Ejected Right After Insertion"

Click here

Disc cannot be ejected Proceed to "Check Optical Disc Error History" in Operation Check

Click here

Proceed to "Disc cannot be Ejected"

Click here

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

Click here

Proceed to "CD/DVD Sound Skips"

Click here

While vehicle is stopped, VCD*1 or DVD cannot be viewed even when parking brake is set (parking brake switch is on) Proceed to "Parking Brake Switch Circuit"

Click here

Radio receiver assembly

Click here

Screen color is poor only when watching a VCD*1 or DVD Change the color settings on the screen adjustment screen -
Replace the disc with a known good one and check that the malfunction disappears -
Radio receiver assembly

Click here

Play back control does not function*1 Check if similar symptoms occur with another vehicle -
Check that the VCD standard is Ver. 2.0 or higher -
Replace the VCD with a known good one and check that the malfunction disappears -
Radio receiver assembly

Click here

Sound quality is bad only when disc is played (volume is too low) Change the sound settings on the adjustment screen -
Proceed to "Check Optical Disc Error History" in Operation Check

Click here

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

Click here

Album cover art cannot be displayed*2 Check that display cover art on the disc settings screen is set to on -
Check if similar symptoms occur with another vehicle -
If an indication to update the Gracenote database appears on the album cover art screen and update data has been downloaded to the radio receiver assembly, update the Gracenote database to the latest version. -
Radio receiver assembly

Click here


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 prompt function is on -
Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Navigation ECU

Click here

Radio receiver assembly

Click here

When voice recognition switch is pressed, a short beep is emitted but voice cannot be recognized properly Check for any blockage in the sound holes of the roof headlining holder cover -
Remove the No. 1 microphone case from the roof headlining and with the roof headlining holder cover and telephone microphone assembly in the installed condition, check that there are no disconnected or lifted up parts -
Proceed to "Voice is not Recognized"

Click here

Proceed to "Microphone Circuit"

Click here

Navigation ECU

Click here

Mobile assistant function does not operate Check if the voice recognition application can be used on the device -
Check that the "Bluetooth" hands-free function is operating normally -
Proceed to "Panel Switches do not Function"

Click here

Proceed to "Steering Pad Switch Circuit"

Click here

Proceed to "Check Microphone (Input to radio receiver assembly)" in Operation Check

Click here

Radio receiver assembly

Click here

"Bluetooth" Hands-free Function
Symptom Suspected Area Link
"Bluetooth" is inoperative (In-vehicle device cannot be recognized by the cellular phone) Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

"Bluetooth" compatible cellular phone cannot be registered Proceed to "Cellular Phone Registration Failure"

Click here

"Bluetooth" compatible cellular phone cannot be connected Check that no other cellular phone is connected as a hands-free device -
Bring the cellular phone near the in-vehicle device and reconnect it -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

"Bluetooth" compatible cellular phone cannot be connected automatically (can be connected manually) Check that "Bluetooth" automatic connection setting of the in-vehicle device is on -
Radio receiver assembly

Click here

"Bluetooth" compatible cellular phone connection is disconnected Bring the cellular phone near the in-vehicle device and check if it is reconnected -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

A "Bluetooth" compatible cellular phone other than intended connects to the system Check the connection priority of the cellular phone -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

Message that prompts to check the cellular phone is displayed Bring the cellular phone near the in-vehicle device and check if it is reconnected -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

When the engine switch is turned on (ACC), instructions for checking the connection condition between the in-vehicle device and cellular phone are displayed Turn the cellular phone connection conformation display on the in-vehicle device off -
Phonebook data cannot be transferred Check that the phonebook automatic transfer setting of the in-vehicle device is on -
Enter "1234" into the "Bluetooth" phone (when transferring phonebook data, OBEX authentication may be required) -
Check that no applications on the cellular phone are operating -
If using "Bluetooth" audio function, cancel the "Bluetooth" audio player connection and check the operation -
Transfer phonebook data manually -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

Phonebook data is cleared Check that the phonebook data automatic transfer setting of the in-vehicle device is off -
Radio receiver assembly

Click here

Phonebook data cannot be edited Check that the phonebook data automatic transfer setting of the in-vehicle device is off -
Radio receiver assembly

Click here

All of the transferred phonebook data is sorted to "Other" Check that no applications on the cellular phone are operating -
Check that phonebook data in the cellular phone is not stored to the SIM card -
Proceed to "Cellular Phone Inspection"

Click here

Explain to the customer that all of the transferred phonebook data may be stored to "Other" depending on cellular phone -
Cellular phone cannot make outgoing/incoming calls Move the vehicle into a cellular phone service area, check that the "Bluetooth" device is connected to the vehicle and operate device again -
Check that the cellular phone can make outgoing/incoming calls properly when not connected via "Bluetooth" -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

Other caller's voice is interrupted by noise or sound quality is poor Check the receiving voice volume (if it is too high, voice may sound distorted) -
Make a call with the cellular phone disconnected from "Bluetooth" and check that other caller's voice can be heard clearly -
Proceed to "Check Hands-free Voice Quality Setting" in Operation Check

Click here

Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

Other caller's voice cannot be heard Check that reception voice volume is not set to minimum -
Make a call with the cellular phone disconnected from "Bluetooth" and check that other caller's voice can be heard clearly -
Proceed to "Check Hands-free Voice Quality Setting" in Operation Check

Click here

Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

Caller's voice (your voice) is interrupted by noise or sound quality is poor Check the transmitting voice volume (if it is too high, voice may sound distorted) -
Check that nothing can cause noise around the microphone (an outlet of the air conditioning system facing the microphone, wind from an open window, additional devices, etc. may affect noise occurrence) -
Check for any blockage in the sound holes of the roof headlining holder cover -
Remove the roof headlining from the roof headlining holder cover and with the roof headlining holder cover and telephone microphone assembly in the installed condition, check that there are no disconnected or lifted up parts -
Proceed to "Check Hands-free Voice Quality Setting" in Operation Check

Click here

Proceed to "Cellular Phone Inspection"

Click here

Proceed to "Microphone Circuit"

Click here

Radio receiver assembly

Click here

Other caller cannot hear your voice Check that the mute button is not on -
Check that nothing can cause noise around the microphone (an outlet of the air conditioning system facing the microphone, wind from an open window, additional devices, etc. may affect noise occurrence) -
Check for any blockage in the sound holes of the roof headlining holder cover -
Remove the roof headlining from the roof headlining holder cover and with the roof headlining holder cover and telephone microphone assembly in the installed condition, check that there are no disconnected or lifted up parts -
Proceed to "Check Hands-free Voice Quality Setting" in Operation Check

Click here

Proceed to "Cellular Phone Inspection"

Click here

Proceed to "Microphone Circuit"

Click here

Radio receiver assembly

Click here

No notification when a new SMS/MMS/e-mail has been received* Check the SMS/MMS/e-mail notification settings on the cellular phone and the radio receiver assembly -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

Received SMS/MMS/e-mail cannot be read* Check the SMS/MMS/e-mail transfer settings on the cellular phone and the radio receiver assembly -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

SMS/MMS/e-mail cannot be replied to* Move the vehicle into a cellular phone service area, and check the operation of the radio receiver assembly and cellular phone -
Check that the cellular phone can send an SMS/MMS/e-mail -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here


"Bluetooth" Audio Function
Symptom Suspected Area Link
Portable player cannot be registered Proceed to "Portable Player cannot be Registered"

Click here

Radio 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

Radio 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

Radio receiver assembly

Click here

Sound of portable player cannot be heard from speakers, or sound is low Check after setting "Wi-Fi" usage off in the multi-display settings. (When Bluetooth audio and "Miracast" are connected simultaneously, audio output priority varies depending on the specifications of the device) -
Proceed to "Sound of Portable Player cannot be Heard from Speakers or Sound is Low"

Click here

Radio 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

Radio receiver assembly

Click here

Portable player does not play Proceed to "Does not Play even after Bluetooth Audio Mode is Selected"

Click here

Radio receiver assembly

Click here

Track information such as track number, track name, 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

Radio 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

Radio 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

Radio 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

Radio receiver assembly

Click here

Noise occurs or sound skips when portable player plays Check after setting "Wi-Fi" usage off in the multi-display settings. (When Bluetooth, "Wi-Fi" and "Miracast" are connected simultaneously, the connection may be interrupted due to radio interference (2.4 GHz band radio wave congestion etc.)) -
Proceed to "Noise Occurs or Sound Skips when Portable Player Plays"

Click here

Radio receiver assembly

Click here

Registered device cannot be deleted Proceed to "Registered Device cannot be Deleted"

Click here

Radio receiver assembly

Click here

"Miracast" Function (w/ "Miracast" Function)
Symptom Suspected Area Link
"Miracast" cannot be started Proceed to "Miracast cannot be started"

Click here

"Miracast" can be started but the "Miracast" image screen is not displayed Check that the vehicle is not being driven -
Check using another "Miracast" supported device -
Radio receiver assembly

Click here

"Miracast" starts but no audio can be heard Proceed to "Check Speaker" in Operation Check

Click here

Check that audio can be heard from the device -
Check that the volume is not set to "0" -
Check that mute is set to OFF -
Check after setting "Bluetooth" automatic connection setting to off in the multi-display settings (When Bluetooth audio and "Miracast" are connected simultaneously, audio output priority varies depending on the specifications of the device) -
Check using another "Miracast" supported device -
Radio receiver assembly

Click here

"This type of video is not available." is displayed on the multi-display screen and the video content stored on the device is not displayed Check "Menu" screen for the device is displayed on the head unit -
Explain to the customer that there is some content that cannot be displayed on the multi-display screen due to copyright restrictions -
Check using another "Miracast" supported device -
Radio receiver assembly

Click here

Block noise is visible on the "Miracast" screen/Noise distortion in the audio output Turn off other Bluetooth and "Wi-Fi" devices -
Check after setting "Bluetooth" automatic connection setting to off in the multi-display settings (When Bluetooth, "Wi-Fi" and "Miracast" are connected simultaneously, noise distortion may occur due to radio interference (2.4 GHz band radio wave congestion etc.)) -
Check after setting "Wi-Fi" automatic connection setting to off in the network settings (When "Wi-Fi" and "Miracast" are connected simultaneously, noise distortion may occur due to radio interference (2.4 GHz band radio wave congestion etc.)) -
Move to an area with less radio disturbance -
Check using another "Miracast" supported device -
Radio receiver assembly

Click here

"Wi-Fi" Function (w/ "Wi-Fi" [Station] Function)
Symptom Suspected Area Link
"Wi-Fi" connection cannot be established Proceed to "Cannot Establish Wi-Fi Connection"

Click here

USB Function
Symptom Suspected Area Link
USB sound cannot be heard or sound quality is bad (USB connector is used) Proceed to "Data Signal Circuit between Radio Receiver Assembly and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

USB device or "iPod" is recognized but cannot play nor play in a sorted order Check that the designated folder name is used -
Check that the file name is 32 characters or less and is in an available language -
Check that the file system of the USB device is FAT16 or FAT32 -
Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Track information, such as track, artist and album name, is not displayed Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

USB device or "iPod" is not recognized Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Album cover art cannot be displayed Check that Display Cover Art on the audio settings screen is set to on -
Check that a JPEG, BMP or PNG file is used for the album cover art registered to the music data in the USB device or "iPod" -
Check if similar symptoms occur with another vehicle -
If an indication to update the Gracenote database appears on the album cover art screen and update data has been downloaded to the radio receiver assembly, update the Gracenote database to the latest version* -
Radio receiver assembly

Click here

User set album cover art cannot be displayed Check if the priority display of Gracenote database album cover art setting is off -
Check that a JPEG file is used for the album cover art registered to the music data in the "iPod" -
Radio receiver assembly

Click here

"iPod" battery cannot be charged Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Screen is distorted or not displayed only when using the USB device connected to the No. 1 stereo jack adapter assembly Check if video file is select to USB mode -
Connect a known good USB device to the No. 1 stereo jack adapter assembly and check if an image is output -
Proceed to "Data Signal Circuit between Radio Receiver and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Screen color is poor only when using the USB device connected to the No. 1 stereo jack adapter assembly Change the color settings on the screen adjustment screen -
Proceed to "Data Signal Circuit between Radio Receiver Assembly and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

"IF-BOX_USB" is not displayed on system check mode screen Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

Stereo jack adapter light does not illuminate Proceed to "Stereo Jack Adapter Light does not Illuminate"

Click here


AUX (Stereo Jack) 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 Assembly and Stereo Jack Adapter"

Click here

No. 1 stereo jack adapter assembly

Click here

Radio receiver assembly

Click here

"AUX/VTR" 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 receiver assembly

Click here

Stereo jack adapter light does not illuminate Proceed to "Stereo Jack Adapter Light does not Illuminate"

Click here

Smartphone Linked Function (w/ Smartphone Linked Function)
Symptom Suspected Area Link
Smartphone linked function does not operate Check if the smartphone linked function setting is on -
Proceed to "Cellular Phone Inspection"

Click here

Radio receiver assembly

Click here

Software Update Function
Symptom Suspected Area Link
"The software update cannot be started because the media is in use. Please try again when the media is no longer in use." is displayed Perform the operation again after ending when music is played with USB-Audio -
Replace USB memory device -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"Unable to update the software. Please try again later." is displayed There may be times that the software update cannot be performed due to communication device or media is still preparing, such as trying to perform the software update right after the navigation system has started up, so perform the operation after a while -
Make inquiry to the center whether there is any problem with the download software -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"Unable to get new software because the line is busy. Please try again later." is displayed Perform the operation after a while -
End other functions that are using communications, and perform the operation again -
Make inquiry to the service center about the operational condition -
Make inquiry to the service center whether there is any problem with the send log to the device -
Perform the software update using the USB memory device again -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"There is no new software or the media is not inserted." is displayed Check that the USB memory device with new software stored is connected to the USB connector -
Check the model ID on the software update screen and check that it is same as the file name of the software downloaded -
Download the software using a PC again, copy it to a USB memory device, and perform software update -
Make inquiry to the center whether there is any problem with the download software -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"There is a problem with the downloaded data. Please try again later." is displayed Make inquiry to the center whether there is any problem with the download software -
Perform the software update using the USB memory device again -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"New software is not compatible with the system." is displayed Make inquiry to the center whether there is any problem with the download software -
Download the software using a PC again, copy it to a USB memory device, and perform software update -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"The combination of update files is abnormal. Please download it again" or similar is displayed Make inquiry to the center whether there is any problem with the download software -
Perform the software update using the communication again -
Download the software using a PC again, copy it to a USB memory device, and perform software update -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"There is a problem with the downloaded data. Please contact your dealer." is displayed Perform the software update using the communication -
Perform the software update using the USB memory device -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"New software is not compatible with the system. Contact your dealer." is displayed Perform the software update using the communication -
Perform the software update using the USB memory device -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"Software could not be updated. Please contact your dealer." is displayed Make inquiry to the center whether the model ID checked on the software update screen and the model ID sent from the device are same -
Make inquiry to the center whether there is any problem with the download software -
Make inquiry to the center whether there is any problem with the send log to the device -
Perform the software update using the USB memory device again -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

"There is insufficient free space. Please contact your dealer." is displayed If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

The software update could not be performed using the USB memory device Follow the instruction when an on-screen message is displayed -
Check that "Perform software update" is displayed and check that the USB memory device with new software stored is connected to the USB connector -
Explain to the customer that the last software update is downloading when "New software is downloading" is displayed -
Explain to the customer that the last software update is installing when "New software is installing" is displayed -
Perform the software update using the USB memory device again -
If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

Click here

If there is software update data for the audio system but the software update cannot be performed, replace the radio receiver assembly

Click here

Version display of the software update screen or the display of the update information screen is abnormal Make inquiry to the center whether there is any problem with the download software -
Perform the software update using the USB memory device again -
If the version display of the navigation is abnormal, replace the navigation ECU

Click here

If the version display of the audio is abnormal, replace the radio receiver assembly

Click here

Date of the update information is not displayed The date of update information is not displayed when GPS is not received, therefore check that the "No GPS Signal"* mark is not displayed -
Since the date may not be recorded when the software update is performed without receiving the GPS, check with the customer if the software update was performed in location where the GPS reception was poor, such as underground parking lot -
Wait and see until next software update -
Past software update history is cleared Explain to the customer that the history is cleared when "Delete Parsonal Data" of the setting screen is selected -
Wait and see until the next software update and replace the navigation ECU if the symptom reproduces

Click here


Connected Services (w/ Connected Services)
Symptom Suspected Area Link
Connection to search engine fails Proceed to "Connected Services" in System Description

Click here

Check if the cellular phone is in standby mode -
Check if the cellular phone is compatible with the connected service -
Check if similar symptoms occur with another vehicle -
Navigation ECU

Click here

Radio receiver assembly

Click here

POIs are not displayed on list (when using a USB device) Check if POIs are stored in USB device root folders -
Check that POIs with extension ".poi" are stored in the USB device -
Check that name is "my dest.poi" -
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

Radio receiver assembly

Click here

POIs cannot be registered to navigation system Check if the maximum number of memory points has been registered -
Check that nothing has been changed for downloaded POIs -
Navigation ECU

Click here

Radio receiver assembly

Click here

Google Street View cannot be displayed on map even though map scale is changed Check if Google Street View can be displayed at a different point -
Navigation ECU

Click here

Radio receiver assembly

Click here

Google street view "Next" or "Previous" switches cannot be selected Wait for 90 seconds and check if the switches can be selected -
Navigation ECU

Click here

Radio receiver assembly

Click here

Detour search using TPEG information does not operate Check that "Dynamic reroute" is set to "Auto" or "Manual" -
Check that "Use traffic pattern" is set to "On" -
Navigation ECU

Click here

Radio receiver assembly

Click here

Enform Function (w/ Enform Function)
Symptom Suspected Area Link
Enform App Suite function error message is displayed on the screen Follow on screen instructions -
Proceed to "Confirm Cellular Phone Functionality"

Click here

Proceed to "Confirm Vehicle Headunit Functionality"

Click here

Proceed to "ENFORM RESET PROCEDURE" in Operation Check

Click here

Radio receiver assembly

Click here

Enform App Suite and services are not operating as expected Proceed to "Confirm Cellular Phone Functionality"

Click here

Proceed to "Confirm Vehicle Headunit Functionality"

Click here

Proceed to "ENFORM RESET PROCEDURE" in Operation Check

Click here

Radio receiver assembly

Click here

Poor sound quality of Enform App Suite function Confirm that cellular phone handset volume is turned up -
Confirm that adequate signal is maintained during driving -
Proceed to "Confirm Cellular Phone Functionality"

Click here

Proceed to "Confirm Vehicle Headunit Functionality"

Click here

Proceed to "ENFORM RESET PROCEDURE" in Operation Check

Click here

Radio receiver assembly

Click here

The Enform App Suite app (Infotainment Apps) cannot be installed on the head unit Proceed to "Confirm Cellular Phone Functionality"

Click here

Proceed to "Confirm Vehicle Headunit Functionality"

Click here

Proceed to "ENFORM RESET PROCEDURE" in Operation Check

Click here

Radio receiver assembly

Click here

The Enform App Suite app (Infotainment Apps) cannot be updated Proceed to "Confirm Cellular Phone Functionality"

Click here

Proceed to "Confirm Vehicle Headunit Functionality"

Click here

Proceed to "ENFORM RESET PROCEDURE" in Operation Check

Click here

Radio receiver assembly

Click here

The Enform App Suit Function does not operate in Enhanced Mode even with a USB connection Check that the application being used supports Enhanced Mode

Click here

Check that it operates normally when another USB device is connected to the No. 1 stereo jack adapter assembly -
Radio receiver assembly

Click here

ECO Information Function
Symptom Suspected Area Link
Information is not displayed or updated on the "Trip Information" screen Turn engine switch on (IG) and recheck -
Check that the SFI system is operating normally (for 2GR-FKS)*1

Click here

Check that the SFI system is operating normally (for 2GR-FKS)*2

Click here

Check that the SFI system is operating normally (for 8AR-FTS)*1

Click here

Check that the SFI system is operating normally (for 8AR-FTS)*2

Click here

Navigation ECU

Click here

Information is not displayed or updated on the "History" screen Turn engine switch on (IG) and recheck -
Check that the meter/gauge system is operating normally

Click here

Navigation ECU

Click here

"Fuel Consumption" icon is dimmed Check if other icons or items displayed on screen have any problems -
Navigation ECU

Click here

Graph is not displayed on "Trip Information" screen Check that the SFI system is operating normally (for 2GR-FKS)*1

Click here

Check that the SFI system is operating normally (for 2GR-FKS)*2

Click here

Check that the SFI system is operating normally (for 8AR-FTS)*1

Click here

Check that the SFI system is operating normally (for 8AR-FTS)*2

Click here

Navigation ECU

Click here

Cruise range is not displayed on "Trip Information" screen Turn engine switch on (IG) and recheck -
Navigation ECU

Click here

Graph is not updated on "History" screen even though "Clear" is selected Turn engine switch on (IG) and recheck -
Navigation ECU

Click here

Graph is not displayed on "History" screen Turn engine switch on (IG) and recheck -
Navigation ECU

Click here