NAVIGATION SYSTEM 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
Pressing power switch does not turn on system. Proceed to "Radio Receiver Power Source Circuit"

Click here

Radio and display receiver assembly

Click here

Black screen (No image appears on navigation/audio screen). Proceed to "Black Screen"

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

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

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

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Navigation function switches can be operated while vehicle being driven. CAN communication system

Click here

Electric parking brake system

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Panel Switch and Touch Switch Function
Symptom Suspected Area See page
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

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

Radio and display receiver assembly

Click here

Navigation function switches can be operated while vehicle is driving. CAN communication system

Click here

Electric parking brake system

Click here

Navigation ECU

Click here

Radio and display receiver assembly

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

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

Radio and display receiver assembly

Click here

Navigation Function
Symptom Suspected Area See page
Date and time on navigation screen are different from actual date and time. Proceed to "Vehicle Position Mark Deviates Greatly"

Click 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 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) -
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 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

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 here

Navigation antenna assembly

Click here

Navigation ECU

Click here

Vehicle position mark is not updated. 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 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

Navigation ECU

Click here

Map display is incomplete. Proceed to "Map Display Incomplete"

Click here

Navigation ECU

Click here

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

Click here

Navigation ECU

Click here

Traffic information is not displayed on navigation screen. Proceed to "Radio Broadcast cannot be Received or Poor Reception"

Click here

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

Customize parameters cannot be changed (customize parameters can be changed by using the GTS). Navigation ECU

Click here

Reverse signal does not change in vehicle signal check mode. CAN communication system

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Parking brake switch signal does not change in vehicle signal check mode. CAN communication system

Click here

Electric parking brake system

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Voice guidance does not function. Proceed to "Voice Guidance does not Function"

Click here

Proceed to "Speaker Circuit"

Click here

Proceed to "Stereo Component Amplifier Power Source Circuit"*

Click here

Stereo component amplifier assembly*

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here


General Audio Function
Symptom Suspected Area See page
No sound can be heard from speakers. Proceed to "No Sound can be Heard from Speakers"

Click here

Proceed to "Speaker circuit"

Click here

Proceed to "Stereo Component Amplifier Power Source Circuit"*

Click here

Stereo component amplifier assembly*

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*

Click here

Navigation ECU

Click here

Radio and display 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 "Speaker circuit"

Click here

Stereo component amplifier assembly*

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"

Click here

Stereo component amplifier assembly*

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here


FM or AM Radio Function
Symptom Suspected Area See page
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 and display receiver assembly

Click here

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

Click here

Digital Audio Broadcast (DAB) Function (w/ DAB Function)
Symptom Suspected Area See page
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) (for Sedan). Operate the volume switch and turn up the volume level -
Proceed to "Check DAB Reception" in Operation Check

Click here

Back window glass (window glass antenna wire)

Click here

Digital audio broadcasting antenna assembly

Click here

Amplifier antenna assembly

Click here

Antenna cord sub-assembly

Click here

Radio and display receiver assembly

Click here

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) (for Wagon). Operate the volume switch and turn up the volume level -
Proceed to "Check DAB Reception" in Operation Check

Click here

Roof antenna pole sub-assembly -
Digital audio broadcasting antenna assembly

Click here

Amplifier antenna assembly

Click here

Antenna cord sub-assembly

Click here

Radio and display 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 and display 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 and display receiver assembly

Click here

AUX (Stereo Jack) Function
Symptom Suspected Area See page
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/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 and display receiver assembly

Click here

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

Click here

Navigation ECU

Click here

Radio and display 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

Navigation ECU

Click here

Radio and display 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 -
Navigation ECU

Click here

Radio and display 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

Navigation ECU

Click here

Radio and display 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

Navigation ECU

Click here

Radio and display receiver assembly

Click here

When the ignition switch is turned to 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 running -
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

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Phonebook data is cleared. Navigation ECU

Click here

Radio and display receiver assembly

Click here

Phonebook data cannot be edited. Check that the phonebook data automatic transfer setting is off -
Navigation ECU

Click here

Radio and display receiver assembly

Click here

All 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 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

Navigation ECU

Click here

Radio and display 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 "Cellular Phone Inspection"

Click here

Navigation ECU

Click here

Radio and display 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 "Cellular Phone Inspection"

Click here

Navigation ECU

Click here

Radio and display 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) -
Proceed to "Cellular Phone Inspection"

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

Other caller cannot hear your voice. When talking on the cellular phone, check that the mute button is not pressed -
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) -
Proceed to "Cellular Phone Inspection"

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

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 and display receiver assembly -
Proceed to "Cellular Phone Inspection"

Click here

Navigation ECU

Click here

Radio and display 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 and display receiver assembly -
Proceed to "Cellular Phone Inspection"

Click here

Navigation ECU

Click here

Radio and display 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 and display receiver assembly and cellular phone -
Check that the cellular phone can send an SMS/MMS/e-mail -
Proceed to "Cellular Phone Inspection"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

"Bluetooth" Audio Function
Symptom Suspected Area See page
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, 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

"Wi-Fi" Function (w/ "Wi-Fi" Function)
Symptom Suspected Area See page
Cannot establish "Wi-Fi" connection. Proceed to "Cannot Establish Wi-Fi Connection"

Click here

Voice Recognition Function (w/ Voice Recognition Function)
Symptom Suspected Area See page
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

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 Microphone and Radio Receiver"

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

USB Audio System Function
Symptom Suspected Area See page
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

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

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

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

USB device or "iPod" is recognized but cannot play, or can play but not in a sorted order. Proceed to "USB Audio System Recognition/Play Error"

Click here

No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Album cover art cannot be displayed.* Check that Display Cover Art on the "iPod" or USB Settings screen is set to -
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 and display receiver assembly, update the Gracenote database to the latest version -
Navigation ECU

Click here

Radio and display receiver assembly

Click here

Check if the priority display of Gracenote database album cover art setting is off* -
User set album cover art cannot be displayed. Check that a JPEG file is used for the album cover art registered to the music data in the USB device or "iPod" - radio and display receiver assembly -
Navigation ECU

Click here

Radio and display 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

Navigation ECU

Click here

Radio and display receiver assembly

Click here

Screen is distorted or not displayed only when using the video function of an "iPod". Check if "iPod" is set to output images -
Proceed to "USB Audio System Outline" in System Description and check if the "iPod" is compatible with the radio and display receiver assembly

Click here

Check if the appropriate image signal setting (NTSC/ PAL) is selected -
Check if video sound input is set to "A/V" -
Connect using a known good cable and check if the image is output -
No. 1 stereo jack adapter assembly

Click here

Navigation ECU

Click here

Radio and display 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 -
Radio and display receiver assembly

Click here

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 ignition switch to ON and recheck -
Radio and display receiver assembly

Click here

"MirrorLink" Function (w/ "MirrorLink" Function)
Symptom Suspected Area See page
Although USB device is recognized, "MirrorLink" function cannot be started (smartphone battery can be charged). Proceed to "MirrorLink Function cannot be Started"

Click here

Image is not displayed. Proceed to "MirrorLink Image is not Displayed"

Click here

Sound cannot be heard. Proceed to "MirrorLink Sound cannot be Heard"

Click here

"MirrorLink" is inoperative only when smartphone is connected to head unit. Proceed to "MirrorLink is Inoperative"

Click here

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

Click here

Contact the mobile network provider and check if the items in "Detail Setting" are set correctly -
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 and display 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 256 characters (ASCII) 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

Radio and display 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 other than renaming them -
Navigation ECU

Click here

Radio and display receiver assembly

Click here

Panoramio photos or Google street view cannot be displayed on map even though map scale is changed. Check if Panoramio photos or Google street view can be displayed at a different point -
Navigation ECU

Click here

Radio and display 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 and display receiver assembly

Click here

Traffic Information (w/ Connected Services)
Symptom Suspected Area See page
TPEG information (traffic) is not displayed on navigation screen. After turning the ignition switch from off to ACC, check if TPEG information (traffic) is displayed -
Check that the traffic messages setting is set to a position other than off. If the symptom occurs in the roaming area, check the roaming reception setting -
Check if similar symptoms occur with another vehicle -
Navigation ECU

Click here

Radio and display receiver assembly

Click here

TPEG information (traffic) cannot be received automatically. Check that the traffic messages setting is set to auto. If the symptom occurs in the roaming area, check the roaming reception setting -
Change the traffic messages setting to auto and wait for 10 minutes with the navigation screen on. If an error code or error message is displayed, perform the inspection according to the displayed error code or error message -
Navigation ECU

Click here

Radio and display receiver assembly

Click here

TPEG information (traffic) cannot be received manually. Check that the traffic messages setting is set to manual. If the symptom occurs in the roaming area, check the roaming reception setting -
Push the update switch and wait for 1 minute with the navigation screen on. Then, if an error code or error message is displayed, perform the inspection according to the displayed error code or error message -
Navigation ECU

Click here

Radio and display receiver assembly

Click here

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

Click here

Radio and display receiver assembly

Click here