Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Depending on the multi-display settings, the background will remain started even when the ignition switch is turned off. For that reason, check the multi-display setting before performing an inspection.

Click here

General Function

Symptom

Suspected Area

Link

Each time the ignition switch is turned to ON, the loading window is displayed.

Inspect the auxiliary battery.

-

Inspect the wire harness and connector (terminals +B1 and ACC1 of the radio and display receiver assembly).

Replace the radio and display receiver assembly.

A message is displayed to inform the driver that the program cannot be read, and the system cannot be operated.

Replace the radio and display receiver assembly.

Vehicle customization cannot be performed using the setting/editing display of the multi-display (customization is possible using the GTS).

Turn the ignition switch from off to ACC, then try again.

-

Replace the radio and display receiver assembly.

Display Function

Symptom

Suspected Area

Link

No image is displayed when the ignition switch is ACC (black screen).

If the screen is set to off, change the setting to on.

-

Replace the radio and display receiver assembly.

White or blue screen is displayed when the ignition switch is turned to ACC.

Replace the radio and display receiver assembly.

Color distortion occurs in all of the displays.

Check the settings of the display quality adjustment screen (check that each setting is centered).

-

Replace the radio and display receiver assembly.

The clearance sonar sensor display is not displayed.*1

Check that the intuitive parking assist system is operating correctly.

  • *1: w/ Intuitive Parking Assist System
Audio Function (for 6 Speakers)

Symptom

Suspected Area

Link

When ASL (Auto Sound Levelizer) is operating and audio is being output, the sound volume does not change even when driving on a highway, etc.

Explain to the customer that if the sound volume is set to high, it is hard to notice the effect of ASL.

-

Check the settings of the sound quality adjustment screen (check that the ASL function is not set to off).

-

Check the settings of the sound quality adjustment screen (check that each setting is centered).

-

Function Check/Setting I - check vehicle signal (SPD signal)

Inspect the wire harness and connector (radio and display receiver assembly (SPD) - combination meter assembly (+S) terminal).

-

Proceed to the troubleshooting procedure of the meter & gauge system (vehicle speed signal circuit)

Replace the radio and display receiver assembly.

In all modes, sound from all speakers cannot be heard, sound quality is poor in all modes (the displays and switch operations are correct)

Inspect the wire harness and connector (telematics transceiver (MUTE) - radio and display receiver assembly (TMUT) terminal).*1

-

Inspect the telematics transceiver (MUTE) terminal.*1

Replace the radio and display receiver assembly.

Sound from a specific speaker cannot be heard, sound quality is poor or sound is low in all modes

Check the settings of the sound quality adjustment screen (check that each setting is centered).

-

Check the settings of the sound quality adjustment screen (check that the ASL function on sound setting display 2 is set to off).

-

Proceed to "Speaker Circuit"

In all modes, noise occurs in all of the speakers.

Proceed to "In all modes, noise occurs in all of the speakers"

  • *1: w/ Telematics Transceiver
Audio Function (for 9 Speakers)

Symptom

Suspected Area

Link

When ASL (Auto Sound Levelizer) is operating and audio is being output, the sound volume does not change even when driving on a highway, etc.

Explain to the customer that if the sound volume is set to high, it is hard to notice the effect of ASL.

-

Check the settings of the sound quality adjustment screen (check that the ASL function is not set to off).

-

Check the settings of the sound quality adjustment screen (check that each setting is centered).

-

Function Check/Setting I - check vehicle signal (SPD signal)

Inspect the wire harness and connector (stereo component amplifier assembly (SPD) - combination meter assembly (+S) terminal).

-

Proceed to the troubleshooting procedure of the meter & gauge system (vehicle speed signal circuit)

Replace the stereo component amplifier assembly.

Replace the radio and display receiver assembly.

In all modes, sound from all speakers cannot be heard, sound quality is poor in all modes (the displays and switch operations are correct)

Inspect wire harness and connectors (radio and display receiver assembly (MUT1) - stereo component amplifier assembly (MUTE) terminal).

-

Inspect the stereo component amplifier assembly (MUTE) terminal.

Inspect the wire harness and connector (radio and display receiver assembly (audio output) - stereo component amplifier assembly (audio enter) terminal).

-

Inspect the wire harness and connector (telematics transceiver (MUTE) - radio and display receiver assembly (TMUT) terminal).

-

Inspect the telematics transceiver (MUTE) terminal.

Adjust the sound volume and if the value changes on the display, replace the stereo component amplifier assembly.

Replace the radio and display receiver assembly.

Sound from a specific speaker cannot be heard, sound quality is poor or sound is interrupted in all modes

Check the settings of the sound quality adjustment screen (check that each setting is centered).

-

Check the settings of the sound quality adjustment screen (check that the ASL function is set to off).

-

Inspect the wire harness and connector (radio and display receiver assembly (audio output) - stereo component amplifier assembly (audio enter) terminal).

-

Utility (speaker circuit energization inspection)

Replace the radio and display receiver assembly.

In all modes, noise occurs in all of the speakers.

Proceed to "In all modes, noise occurs in all of the speakers"

Voice recognition accuracy is low or there is an echo when using hands-free "Bluetooth"

Inspect the wire harness and connector (radio and display receiver assembly (FB1+, FB1-) - stereo component amplifier assembly (FB1+, FB1) terminal).

-

Inspect the wire harness and connector (radio and display receiver assembly (FB2+, FB2-) - stereo component amplifier assembly (FB2+, FB2-) terminal).

-

Inspect the stereo component amplifier assembly (FBGN) terminal.

Replace the stereo component amplifier assembly.

Replace the radio and display receiver assembly.

Voice guidance function does not operate

Check the settings of the sound quality adjustment screen (check that voice guidance is set to on).

-

Inspect the wire harness and connector (radio and display receiver assembly (RR+, RR-) - stereo component amplifier assembly (RR+, RR-) terminal).

-

Replace the stereo component amplifier assembly.

Replace the radio and display receiver assembly.

Night Illumination Function

Symptom

Suspected Area

Link

Even though headlights are turned on, the display is not dimmed.

Check that the interior lighting system is operating correctly.

Proceed to "Even Though Headlights are Turned On, Head-Unit does not Dim the Display"

The night illumination function of the steering pad switch does not function (audio operation on the steering pad switch is normal).

Inspect the steering pad switch assembly (IL+2, ILL) terminal.

Inspect the spiral cable sub-assembly (IL+2) terminal.

Inspect the wire harness and connector (spiral cable sub-assembly (IL+2) terminal).

-

Switch Function

Symptom

Suspected Area

Link

Touch switch operation is not received.

Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary.

-

Function Check/Setting I - check panel & steering switch

Replace the radio and display receiver assembly.

Panel switch operation is not received.

Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary.

-

Function Check/Setting I - check panel & steering switch

Replace the radio and display receiver assembly.

Audio system operation using the steering wheel switches does not function (sound output is normal and the operation of the panel switch is correct).

Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary.

-

Function Check/Setting I - check panel & steering switch

Inspect the steering pad switch assembly (AU1, AU2, EAU) terminal.

Inspect the spiral cable sub-assembly (AU1, AU2, EAU) terminal.

Inspect the wire harness and connector (spiral cable sub-assembly - radio and display receiver assembly terminal).

-

Inspect the radio and display receiver assembly (SWG) terminal.

Replace the radio and display receiver assembly.

GPS Function (w/o Navigation Function)

Symptom

Suspected Area

Link

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

Confirm again after removing all additional devices which use radio waves

-

Move the vehicle (to a place where reception is good)

-

Function Check/Setting I - check GNSS

Inspect the navigation antenna assembly.

Replace the antenna cord sub-assembly.

-

Replace the radio and display receiver assembly.

Navigation Function (w/ Navigation Function)

Symptom

Suspected Area

Link

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

Confirm again after removing all additional devices which use radio waves.

-

Move the vehicle (to a place where reception is good)

-

Function Check/Setting I - check system sensors

Inspect the navigation antenna assembly.

Replace the antenna cord sub-assembly.

Replace the radio and display receiver assembly.

Vehicle position mark or map rotates randomly

Check that the gyro has been initialized (Explain to the customer that when the ignition switch is turned off and the vehicle is turned on a parking turntable, etc., the current vehicle position mark may not indicate the correct direction, however it returns to normal after driving the vehicle for a while)

-

Replace the radio and display receiver assembly.

Direction of travel and vehicle position mark direction are opposite

Check after removing all additional devices which use radio waves.

-

Check that the gyro has been initialized (Explain to the customer that when the ignition switch is turned off and the vehicle is turned on a parking turntable, etc., the current vehicle position mark may not indicate the correct direction, however it returns to normal after driving the vehicle for a while).

-

Function Check/Setting I - check vehicle signal (REV signal)

Replace the radio and display receiver assembly.

Vehicle position mark moves ahead or falls behind, or deviates from and returns to correct position repeatedly

Confirm after removing all additional devices which use radio waves.

-

Move the vehicle (to a place where reception is good)

-

Function Check/Setting I - check system sensors

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

-

Function Check/Setting I - check vehicle signal (SPD signal)

Inspect the wire harness and connector (radio and display receiver assembly (SPD) - combination meter assembly (+S) terminal).

-

Proceed to the troubleshooting procedure of the meter & gauge system (vehicle speed signal circuit)

Inspect the navigation antenna assembly.

Replace the antenna code sub-assembly.

Replace the radio and display receiver assembly.

Route voice guidance is not output or volume is low (audio guidance is normal)

Check that the audio function is operating correctly

-

Check the settings of the navigation voice guidance.

Replace the radio and display receiver assembly.

A message indicating to wait for a while because of low temperature is displayed.

Start the hybrid control system and wait until the interior temperature increases.*1

-

Start the SFI system and wait until the interior temperature increases.*2

-

Replace the radio and display receiver assembly.

Subscription screen is visible instead of map display

Confirm that the communication is set to Wi-Fi and if operation is normal, inspect the telematics system

Check that the account is valid

-

Turn the ignition switch off and try again

-

Contact the support center

-

No map download or update as the vehicle moves

Confirm that the communication is set to Wi-Fi and if operation is normal, inspect the telematics system

Confirm that the navigation screen can display a map with a distance of 100 miles from the current vehicle location

-

Turn the ignition switch off and try again

-

Contact the support center

-

User profile and settings not available on head unit

Confirm that the communication is set to Wi-Fi and if operation is normal, inspect the telematics system

Check that the account is valid

-

Turn the ignition switch off and try again

-

Contact the support center

-

No destination results

Search using a different search method

-

Set the head unit to offline mode and search for a destination

-

Turn the ignition switch off and try again

-

Contact the support center

-

Voice is not recognized for a navigation command

Check that the voice recognition system is functioning correctly

-

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system

Confirm that voice command setting is ON and the microphones are not blocked

-

Check that the account is valid

-

Turn the ignition switch off and try again

-

Contact the support center

-

Route cannot be calculated

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system

Set the head unit to offline mode

-

Turn the ignition switch off and try again

-

Contact the support center

-

Alternate routes are not available

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system

Turn the ignition switch off and try again

-

Contact the support center

-

Voice Guidance does not function

Check voice guidance setting

-

Turn the ignition switch off and try again

-

Contact the support center

-

Traffic information is not available

Check navigation settings

-

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system

Turn the ignition switch off and try again

-

Confirm that the navigation screen can display a map with a distance of 100 miles from the current vehicle location

-

Contact the support center

-

  • *1: for HEV Model
  • *2: for Gasoline Model
Radio Function

Symptom

Suspected Area

Link

Radio broadcast cannot be received or poor reception

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

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

Confirm that the communication is set to Wi-Fi and if operation is normal, inspect the telematics system*1

Replace the radio and display receiver assembly.

Radio broadcast can be displayed but radio broadcast cannot be heard from speakers

Check the volume settings

-

Replace the radio and display receiver assembly.

Radio broadcast can be received but station list cannot be displayed

Wait for 120 seconds in radio mode, and select "Refresh" on the station list screen

-

Replace the radio and display receiver assembly.

Radio broadcast can be received but station list cannot be updated

Confirm that the communication is set to Wi-Fi and if operation is normal, inspect the telematics system*1

Select "Refresh" on the station list screen

-

Wait for 10 minutes with the ignition switch ON, and select "Refresh" on the station list screen again

-

Replace the radio and display receiver assembly.

  • *1: w/ Telematics Transceiver
HD Radio Function

Symptom

Suspected Area

Link

Only "HD Radio" stations cannot be heard or selected, or their analog or digital sound cannot be changed

Check the "HD Radio" settings

-

Replace the radio and display receiver assembly.

When the HD radio is playing, cover art may not be displayed

Check that the display cover art setting is not set to off.

-

When a song unregistered to the Gracenote CDDB is playing or cover art information is not provided by the broadcast station, its cover art cannot be displayed

-

When the HD radio is playing, cover art cannot be displayed

Check that the display cover art setting is not set to off.

-

Replace the radio and display receiver assembly.

Broadcast station logo cannot be displayed

Check if similar symptoms occur when receiving other broadcasts

-

Check if similar symptoms occur with another vehicle

-

Replace the radio and display receiver assembly.

SPS channel cannot be selected

Check that HD radio FM mode is selected

-

After pressing the "Refresh" switch, check that the SPS channel is on the station list

-

Replace the radio and display receiver assembly.

When the SPS channel is selected, sound cannot be heard

After pressing the "Refresh" switch, select the SPS channel on the station list

-

Replace the radio and display receiver assembly.

SXM Radio Function (w/ SXM Function)

Symptom

Suspected Area

Link

Satellite radio broadcast cannot be received or reception is bad

Proceed to "Satellite Radio Broadcast cannot be Received"

Replace the radio and display receiver assembly.

Satellite radio cannot receive pay-type broadcasts

Proceed to "Satellite Radio Broadcast cannot be Received"

Replace the radio and display receiver assembly.

Satellite radio broadcast cannot be selected or after selecting broadcast, broadcast cannot be added into memory

Proceed to "Satellite Radio Broadcast cannot be Received"

Proceed to "Satellite Radio Broadcast cannot be Selected or After Selecting Broadcast, Broadcast cannot be Added into Memory"

Replace the radio and display receiver assembly.

Satellite radio can be displayed but radio broadcast cannot be heard from speakers

Check the volume settings

-

Proceed to "Satellite Radio Broadcast cannot be Received"

Replace the radio and display receiver assembly.

When the satellite radio is playing, some cover art may not be displayed

Check if similar symptoms occur when receiving conventional SiriusXM radio broadcasts.

-

When a song unregistered to the broadcast distribution is playing, its cover art cannot be displayed

-

When the satellite radio is playing, cover art cannot be displayed

Replace the radio and display receiver assembly.

After the voice recognition function or hands-free function is turned off, the cache radio does not operate

Replace the radio and display receiver assembly.

When the cache radio is playing, sound is interrupted, sound cannot be heard or sound quality is poor

Check if similar symptoms occur when receiving conventional SiriusXM radio broadcasts

-

Check if similar symptoms occur when receiving other broadcasts

-

Move the vehicle to a place where the reception is good and check again

-

Replace the radio and display receiver assembly.

When the cache radio is playing, sound can be heard, but no information is displayed (some radio stations do not provide their name information)

Check if similar symptoms occur when receiving other broadcasts

-

Move the vehicle to a place where the reception is good and check again

-

Replace the radio and display receiver assembly.

Wi-Fi Function

Symptom

Suspected Area

Link

Cannot Establish Wi-Fi Connection

Proceed to "Wi-Fi Connection History"

Cannot connect to a hotspot

Check that the telematics system is operating correctly.

Check that "HotSpot" is set to ON for the in-vehicle device

-

Check the radio wave reception level (find an area with good reception level)

-

Turn off all nearby radio wave emitting devices (If Wi-Fi and "Bluetooth" operate at the same time, the connection may become unstable due to wave interference (the 2.4 GHz frequency band will be congested, etc.))

-

Check that the settings of the connected device are correct and operation is normal

-

Restart the connected device and check again

-

Check using another connected device

-

Replace the radio and display receiver assembly.

USB Function

Symptom

Suspected Area

Link

Sound cannot be heard or sound quality is poor only when playing a USB storage device or "iPod".

Proceed to "Sound cannot be Heard Sound Quality is Poor only when Replaying USB Storage Device or "iPod""

USB storage device or "iPod" cannot be detected or played.

Proceed to "USB Audio System Recognition/Play Error"

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

Proceed to "USB Audio System Recognition/Play Error"

Although a USB storage device or "iPod" can be detected, the track cannot be played or cannot be played in the sorted order.

Proceed to "USB Audio System Recognition/Play Error"

When "iPod" is replaying, cover art cannot be displayed.

Check that cover art settings are set to be displayed.

-

Replace the radio and display receiver assembly.

When playing back from a "iPod", repeat cannot be turned off

Check the device with which the malfunction occurs using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

USB storage device or "iPod" cannot be charged.

Proceed to "USB Audio System Recognition/Play Error"

Screen is distorted or not displayed only when using the USB storage device.

Check using other media or check the media with which the malfunction occurs using another vehicle of the same type.

-

Replace the stereo jack adapter assembly.

Replace the radio and display receiver assembly.

The display color distortion occurs only when playing a USB storage device (normal for other types).

Check the settings of the display quality adjustment screen (check that each setting is centered).

-

Check the device with which the malfunction occurs using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

"IF-BOX_USB" not displayed on the system check mode screen.

Proceed to "USB Audio System Recognition/Play Error"

Vehicle Information

Symptom

Suspected Area

Link

The energy flow display and the SOC (state of charge) level display is not displayed on the energy monitor display.*1

Turn the ignition switch to ON (READY), and check again.

-

Check that the hybrid control system is operating correctly.

-

Replace the radio and display receiver assembly.

The regenerated energy is not displayed on the trip information display.*1

Turn the ignition switch to ON (READY), and check again.

-

Check that the hybrid control system is operating correctly.

-

Replace the radio and display receiver assembly.

The trip information is not displayed or updated.

Turn the ignition switch to ON (IG), and check again.

-

Check that the hybrid control system is operating correctly.*1

-

Check that the SFI system is operating correctly.*2

-

Check that the electronically controlled brake system is operating correctly.

for HEV Model:

for Gasoline Model:

Replace the radio and display receiver assembly.

The drivable distance is not displayed on the trip information display.

Turn the ignition switch to ON (IG), and check again.

-

Replace the radio and display receiver assembly.

The electricity consumption history information is not displayed or updated.

Turn the ignition switch to ON (IG), and check again.

-

Check that the meter and gauge system is operating correctly.

Replace the radio and display receiver assembly.

  • *1: for HEV Model
  • *2: for Gasoline Model
My Setting Function (w/ Communication Based My Setting Function)

Symptom

Suspected Area

Link

My settings on the multi-display cannot be used

Proceed to My Settings cannot be Used on the Multi-display

My Setting Function (w/o Communication Based My Setting Function)

Symptom

Suspected Area

Link

My settings on the multi-display cannot be used

Replace the radio and display receiver assembly.

Voice Recognition Function

Symptom

Suspected Area

Link

When the voice recognition switch is pressed, a short beep is not output and the voice recognition system does not start

Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary

-

Function Check/Setting I - check panel & steering switch

Inspect the steering pad switch assembly.

Inspect the spiral cable sub-assembly.

Inspect the wire harness and connector (spiral cable sub-assembly - radio and display receiver assembly terminal).

-

Replace the radio and display receiver assembly.

Voice recognition does not start even though wake word is spoken.

Check that the wake word in the settings of the in-vehicle device is not set to off.

-

Check that the wake word spoken by the user matches that in the settings of the in-vehicle device.

-

Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start."

Proceed to "Microphone Circuit"

The voice recognition system starts but voice cannot be recognized properly.

Check that the telematics system is operating correctly.*1

Check that the microphone sound holes of the telephone microphone assembly are not blocked

-

Confirm the installation condition of the telephone microphone assembly

-

Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start."

Proceed to "Microphone Circuit"

Voice recognition for vehicle operations is not possible

Check that the telematics system is operating correctly.*1

Service Information - check VUI information

Replace the radio and display receiver assembly.

  • *1: w/ Telematics Transceiver
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"

Replace the radio and display receiver assembly

"Bluetooth" compatible cellular phone cannot be registered

Proceed to "Cellular Phone Registration Failure"

Proceed to ""Bluetooth" Connection History"

"Bluetooth" compatible cellular phone cannot be registered

Check that another cellular phone is not already connected as a hands-free device

-

Bring the cellular phone near the in-vehicle device and reconnect it

-

Proceed to "Cellular Phone Inspection"

Proceed to "'Bluetooth' Connection History"

Replace the radio and display receiver assembly

"Bluetooth" compatible cellular phone cannot be connected automatically (can be connected manually)

Check that the setting "Use for Phone" is set to on on the in-vehicle device registration screen

-

Replace the radio and display receiver assembly

2 "Bluetooth" compatible cellular phones cannot connect at the same time

Check that the sign-in completes after opening the My Settings (user profile) screen

-

Check that another cellular phone is not already connected as a hands-free device

-

Move the main cellular phone and sub-cellular phone close to the in-vehicle device and connect again

-

Proceed to "Cellular Phone Inspection"

Proceed to "'Bluetooth' Connection History"

Replace the radio and display receiver assembly

Ringtone of a "Bluetooth" compatible cellular phone cannot be heard

Check that mute of the cellular phone is off

-

Adjust the sound volume of the cellular phone, and try again

-

Proceed to "Cellular Phone Inspection"

Replace the radio and display receiver assembly

"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"

Proceed to "'Bluetooth' Connection History"

Replace the radio and display receiver assembly

Bring the cellular phone near the in-vehicle device and check if it is reconnected

Check that the sign-in completes after opening the My Settings (user profile) screen

-

Proceed to "Cellular Phone Registration Failure"

Message that prompts to check the cellular phone is displayed

Bring the cellular phone near the in-vehicle device and reconnect it

-

Proceed to "Cellular Phone Inspection"

Replace the radio and display receiver assembly

Phonebook data cannot be transferred

Check that the sync contact setting of the in-vehicle device is on

-

Check that no application on a cellular phone is 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"

Replace the radio and display receiver assembly

Phonebook data is cleared

Check that the phonebook data automatic transfer has been completed

-

Replace the radio and display receiver assembly

All the transferred phonebook data is sorted to "Other"

Check that no application on a cellular phone is operating

-

Check that phonebook data in the cellular phone is not stored to the SIM card

-

Proceed to "Cellular Phone Inspection"

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 cellular phone is connected to the vehicle via "Bluetooth" and operate the in-vehicle device again

-

Check that the cellular phone can make outgoing/incoming calls properly when not connected via "Bluetooth"

-

Check if a call confirmation message is displayed when attempting to call

-

Proceed to "Cellular Phone Inspection"

Proceed to "'Bluetooth' Connection History"

Replace the radio and display receiver assembly

Message cannot be viewed

Check that the cellular phone message forwarding setting is set to on

-

Proceed to "Cellular Phone Inspection"

Replace the radio and display receiver assembly.

No notification when a new message has arrived

Make sure that no applications are left open on the cellular phone.

-

Proceed to "Cellular Phone Inspection"

Replace the radio and display receiver assembly.

Message cannot be sent

Proceed to "Cellular Phone Inspection"

Replace the radio and display receiver assembly.

Message synchronization cannot be set to off

Check if the cellular phone message forwarding is set off

-

Proceed to "Cellular Phone Inspection"

Replace the radio and display receiver assembly.

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)

-

Function Check/Setting I - check hands-free voice quality and volume setting

Make a call with the cellular phone disconnected from "Bluetooth" and check that other callers voice can be heard clearly

-

Check that audio is correctly output for the radio

-

Replace the radio and display receiver assembly

Other caller's voice cannot be heard

Check that audio is correctly output for the radio

-

Make a call with the cellular phone disconnected from "Bluetooth" and check that other callers voice can be heard clearly

-

Using the cellular phone setting display, confirm that the audio output device is registered to the in-vehicle device.

-

Check that reception voice volume is not set to minimum.

-

Replace the radio and display receiver assembly

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).

-

Function Check/Setting I - check hands-free voice quality and volume setting

If any additional devices are installed, turn on/off the power switch and check whether noise occurs.

-

Turn the ignition switch from ACC to off for a few times at a certain interval and check the sound volume of the calls.

-

Using another cellular phone with another cellular phone carrier, check the sound volume of the calls a few times at a certain interval.

-

Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start."

Proceed to "Microphone Circuit"

Other caller cannot hear your voice

When talking on the cellular phone, check that the mute button is not pressed.

-

Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start."

Proceed to "Microphone Circuit"

Sound output too low (other caller cannot hear your voice at an appropriate volume level)

Turn the ignition switch from ACC to off a few times at a certain interval and check the sound volume of the calls.

-

Using another cellular phone with another cellular phone carrier, check the sound volume of the calls a few times at a certain interval.

-

Proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start."

Proceed to "Microphone Circuit"

The telephone button on the steering pad switch cannot be operated but the displayed telephone button can be operated.

Check that there is no foreign matter caught, etc. in the switch for which the problem is occurring, and remove it if necessary

-

Check that the voice recognition switch on the steering pad switch can be operated. If it cannot be operated, proceed to "When voice recognition switch is pressed, a short beep is not emitted and the voice recognition system does not start"

-

Inspect the steering pad switch assembly.

"Bluetooth" Audio Function

Symptom

Suspected Area

Link

"Bluetooth" portable audio player cannot be detected

"Bluetooth" Check if the portable audio player is not connected to the in-vehicle device via "Apple CarPlay" or "Android Auto".

-

Confirm that the portable audio player is "Bluetooth" compatible.

-

Check that the portable audio player is being connected to the in-vehicle device via "Bluetooth" using the correct procedure.

-

Check the portable audio player that the malfunction occurred for using another vehicle of the same type.

-

Check after removing all additional devices which use radio waves.

-

Replace the radio and display receiver assembly.

Portable audio player cannot be connected manually/automatically.

Confirm that the portable audio player is "Bluetooth" compatible.

-

Check that the portable audio player is being connected to the in-vehicle device via "Bluetooth" using the correct procedure.

-

Check that the "Bluetooth" audio connection setting of the "Bluetooth" portable audio player is set to on.

-

Select the customers portable audio player on the device registration screen of the in-vehicle device and check that the "Use for Media" setting is set to on

-

Check that the portable audio player is not in standby/sleep mode.

-

Check that the portable audio player is not being connected to another device via "Bluetooth".

-

Check the portable audio player that the malfunction occurred for using another vehicle of the same type.

-

Confirm after removing all additional devices which use radio waves.

-

Replace the radio and display receiver assembly.

Cellular phone with portable audio player function is connected via "Bluetooth" but cannot be detected as a "Bluetooth" compatible device.

"Bluetooth" Check if the portable audio player is not connected to the in-vehicle device via "Apple CarPlay" or "Android Auto".

-

Confirm that the cellular phone with portable audio player function is "Bluetooth" compatible.

-

Check that the cellular phone with portable audio player function is being connected to the in-vehicle device via "Bluetooth" using the correct procedure

-

Check the cellular phone with portable audio player function using another vehicle of the same type.

-

Confirm after removing all additional devices which use radio waves.

-

Replace the radio and display receiver assembly

Portable audio player automatically starts.

Check that the cellular phone with portable audio player function is being connected to the in-vehicle device via "Bluetooth" using the correct procedure.

-

Check that "Use for media" is set to off on the in-vehicle device

-

Check the cellular phone with portable audio player function using another vehicle of the same type.

-

Sound from portable audio player cannot be heard, sound is low or sound quality is poor

Place the portable audio player to an appropriate position.

-

Check that the portable audio player is on and that the sound volume is not set to zero and mute is off

-

Confirm that use of Wi-Fi connection is set to off. If Bluetooth and Wi-Fi devices are connected at the same time, depending on the specification of each device, one of them will be prioritized to output its audio.

-

Check the portable audio player using another vehicle of the same type.

-

Replace the radio and display receiver assembly

Sound from portable audio player is interrupted or noise occurs

Put the portable audio player in an appropriate location.

-

Confirm that Wi-Fi is set to off. If Bluetooth and Wi-Fi devices operate at the same time, the connection may be disconnected due to wave interference (the 2.4 GHz frequency band will be congested, etc.)).

-

Check the portable audio player using another vehicle of the same type.

-

Confirm after removing all additional devices which use radio waves.

-

Replace the radio and display receiver assembly.

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

Check that the portable audio player is operating correctly.

-

Check the portable audio player using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

Track information such as track number, track name, elapsed play time and playlist is not displayed or the displayed contents is not correct.

Confirm that the cellular phone with portable audio player function is "Bluetooth" compatible.

-

Check that the track information is displayed on the portable audio player.

-

Check the portable audio player using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

Operation switches for portable player such as play, pause, repeat are not displayed.

Check the portable audio player using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

Portable player cannot pause, skip, fast forward, fast rewind, play at random, repeat

Check the portable audio player using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

Registered device cannot be deleted.

Check that the portable audio player is being cleared from the in-vehicle device using the correct procedure.

-

Replace the radio and display receiver assembly

Track information is not listed or the displayed contents are not correct.

Check the portable audio player using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

Repeat cannot be set to off

Check the portable audio player using another vehicle of the same type.

-

Replace the radio and display receiver assembly.

Apple CarPlay Function

Symptom

Suspected Area

Link

Apple CarPlay cannot be started by USB connection

Check that the customers device is compatible with Apple CarPlay

-

If a USB hub is being used, remove it

-

Check the USB cable connection status and check that a genuine Apple USB cable or MFi certified USB cable is being used

-

Check that the customers "Siri" function can be used on their device

-

Select the customers device on the in-vehicle device registration screen and check that the "Use for Apple CarPlay" setting is set to on

-

Proceed to "Sound cannot be Heard Sound Quality is Poor only when Replaying USB Storage Device or "iPod""

Apple CarPlay cannot be started by wireless connection

Move the vehicle to a place where there are minimal radio waves and Wi-Fi connection is possible, then check again

-

Access the official site (https://www.apple.com/) and search for "Apple CarPlay" in the search bar. Select iOS compatibility function and check that the customers device is listed

-

Check that the version of the customers device is not earlier than iOS 13.3

-

Check that the customers device is being connected to the in-vehicle device via "Bluetooth" using the correct procedure

-

Check that the wireless connection setting of the customers device is set to on (permission)

-

Check that the Apple CarPlay connection setting of the customers device is set to on (permission)

-

Check that the "Bluetooth" connection setting of the customers device is set to on

-

Check that the in-vehicle device is displayed on the "Bluetooth" registered device screen of the customers device

-

Check that the Wi-Fi connection setting of the customers device is set to on

-

Check that [SSID: "Smartphone_Connect_######"] (where "######" is the last 6 digits of the Wi-Fi MAC address) is displayed as the connection information for the customers device

-

Check that the name of the customers device is displayed as a "Bluetooth" registered device on the in-vehicle device

-

Select the customers device on the in-vehicle device registration screen and check that the "Use for Apple CarPlay" setting is set to on

-

Select the customers device on the in-vehicle device registration screen and check that Apple CarPlay starts when the "CONNECT" button is pressed

-

Restart the customers device and check again.

-

Check if a "Bluetooth" connection can be established using another device

-

Check that another device that is capable of tethering is displayed in "available networks" and check that a Wi-Fi connection can be established

-

Replace the radio and display receiver assembly.

Wireless connection disconnects unexpectedly

Move the vehicle to a place where there are minimal radio waves and Wi-Fi connection is possible, then check again.

-

Check if "HotSpot" is set to off for the in-vehicle device

-

Restart the customers device and check again.

-

Check if another tether able device is displayed in "available networks" and can connect to Wi-Fi.

-

Replace the radio and display receiver assembly.

When a wireless connection is established, Bluetooth Audio cannot be used at the same time

Check that a wireless connection and a Bluetooth Audio connection are not being attempted on the same device

-

Check that a connection can be established with another device and can be used at the same time

-

Replace the radio and display receiver assembly.

Even though "Hey Siri" is spoken, Siri does not start

Check that the voice recognition function is operating correctly.

-

Check that the version of the customers device is not earlier than iOS14.3

-

Check the value of the "Wake word" setting on the in-vehicle device.

-

Check that the wake word in the settings of the in-vehicle device is not set to off.

-

Check that the "Hey Siri" listening function is set to on (enabled) on the customers device

-

Select the customers device on the in vehicle device registration screen and check that the "Use for Apple CarPlay" setting is set to on.

-

Check if "HotSpot" is set to off for the in-vehicle device.

-

Restart the customers device and check again.

-

Replace the radio and display receiver assembly.

Voice guidance and navigation information is not displayed on the combination meter assembly

Restart the customers device and check again.

-

Check that a different device can connect.

-

Select the customers device on the in vehicle device registration screen and check that the "Use for Apple CarPlay" setting is set to on.

-

After clearing the registered device from the in-vehicle device, register the device again and check that it is displayed on the combination meter assembly

-

Replace the radio and display receiver assembly.

No audio when Apple CarPlay starts

(Customers device is sufficiently charged)

Check that the audio function is operating correctly.

-

Check that sound can be heard from the device.

-

Check that the sound volume is not set to zero.

-

Check that the mute setting is set to off

-

Check if an Apple CarPlay connection can be established using another device.

-

Replace the radio and display receiver assembly.

Android Auto Function

Symptom

Suspected Area

Link

Android Auto cannot be started by USB connection

Check that the customers device is compatible with Android Auto

-

If a USB hub is being used, remove it

-

Check that the cable connecting the customers device is a communication compatible cable

  • Use a cable with a USB mark that is less than 1.8 meters
  • If a connection cannot be established, use a known good cable

-

Check that Android Auto is installed on the customers device

-

Select the customers device on the in vehicle device registration screen and check that the "Use for Android Auto" setting is set to on

-

Proceed to "Sound cannot be Heard Sound Quality is Poor only when Replaying USB Storage Device or "iPod""

Android Auto cannot be started by wireless connection

Move the vehicle to a place where there are minimal radio waves and Wi-Fi connection is possible, then check again

-

Access the official site (https://www.android.com/auto/) and check if the customers device is compatible

-

Check that the customers device is being connected to the in-vehicle device via "Bluetooth" using the correct procedure

-

After confirming that the customers device has connected to Android Auto, check that "Rejected car" is not included on the in-vehicle device. device via "Bluetooth" using the correct procedure

-

Check that the "Bluetooth" connection setting of the customers device is set to on

-

Check that the in-vehicle device is displayed on the "Bluetooth" registered device screen of the customers device

-

Check that the Wi-Fi connection setting of the customers device is set to on

-

Check that [SSID: "Smartphone_Connect_######"] (where "######" is the last 6 digits of the Wi-Fi MAC address) is displayed as the connection information for the customers device

-

Check that the name of the customers device is displayed as a "Bluetooth" registered device on the in-vehicle device

-

Select the customers device on the in-vehicle device registration screen and check that the "Android Auto" setting is set to on

-

Select the customers device on the in-vehicle device registration screen and check that Android Auto starts when the "CONNECT" button is pressed

-

Restart the customers device and check again.

-

Check if a "Bluetooth" connection can be established using another device

-

Check that another device that is capable of tethering is displayed in "available networks" and check that a Wi-Fi connection can be established

-

Replace the radio and display receiver assembly.

Wireless connection disconnects unexpectedly

Move the vehicle to a place where there are minimal radio waves and Wi-Fi connection is possible, then check again.

-

Check if "HotSpot" is set to off for the in-vehicle device.

-

Restart the customers device and check again.

-

Check that another device that is capable of tethering is displayed in "available networks" and check that a Wi-Fi connection can be established.

-

Replace the radio and display receiver assembly.

When a wireless connection is established, Bluetooth Audio cannot be used at the same time

Check that a wireless connection and a Bluetooth Audio connection are not being attempted on the same device

-

Check that a connection can be established with another device and can be used at the same time

-

Replace the radio and display receiver assembly.

Call information is not displayed on the combination meter assembly.

Restart the customers device and check again.

-

Check that a different device can connect.

-

Select the customers device on the in vehicle device registration screen and check that the "Use for Android Auto" setting is set to on

-

After clearing the registered device from the in-vehicle device, register the device again and check that it is displayed on the combination meter assembly.

-

Replace the radio and display receiver assembly.

No audio when Android Auto starts (Customers device is sufficiently charged)

Check that the audio function is operating correctly.

-

Check that sound can be heard from the device.

-

Check that the sound volume is set to zero.

-

Check that the mute setting is set to off.

-

Check if an Android Auto connection can be established using another device.

-

Replace the radio and display receiver assembly.

Streaming Audio Function (w/ Streaming Audio Function)

Symptom

Suspected Area

Link

Audio application is not displayed on sources list

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system

Check operation of the server using another vehicle

-

Turn the ignition switch off and try again

-

Initialize the in-vehicle device and check again

-

Contact the support center

-

Audio application did not load

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system

Check operation of the server using another account or vehicle

-

Turn the ignition switch off and try again

 

Initialize the in-vehicle device and check again

-

Contact the support center

-

Audio application not responsive

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system

Check operation of the server using another vehicle

-

Turn the ignition switch off and try again

-

Initialize the in-vehicle device and check again

-

Contact the support center

-

Audio application playing but no music heard

Check that mute of the audio is off

-

Check that the audio function is operating correctly.

-

Issue TAS ticket (streaming audio does not produce sound, but other audio source has sound)

-

Search Function

Symptom

Suspected Area

Link

"Sorry, there was a problem" message is displayed in navigation search

Move the vehicle (to a place where GNSS radio wave reception is good)

-

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system*1

Turn the ignition switch off and try again

-

Contact the support center

-

"Sorry, there was a problem" message is displayed in media search

Move the vehicle to a place where the reception sensitivity is good and check again

-

Change the communication settings to Wi-Fi and if operation is normal, inspect the telematics system*1

Check using another audio player

-

Turn the ignition switch off and try again

-

Contact the support center

-

"Sorry, there was a problem" message is displayed in phone search

Check that the cellular device is connected to the in-vehicle device via "Bluetooth"

-

Verify contacts synced to head unit

-

Turn the ignition switch off and try again

-

Contact the support center

-

"Sorry, there was a problem" message is displayed in setting search

Turn the ignition switch off and try again

-

Contact the support center

-

Unable to enter keyboard search

Turn the ignition switch off and try again

-

Contact the support center

-

  • *1: w/ Telematics Transceiver
Apps Function (w/ Apps Function)

Symptom

Suspected Area

Link

Application does not operate normally

Confirm that the communication is set to Wi-Fi and if operation is normal, inspect the telematics system

Check that the contract status of the service is valid and the user is signed in

-

Turn the ignition switch off and try again

-

Check operation of the server using another account or vehicle

-

Check that the version of the application is the latest

-

Initialize the in-vehicle device and check again

-

Contact the support center

-

Destination Assist Function (w/ Destination Assist Function)

Symptom

Suspected Area

Link

Destination assist call cannot be performed

Check that the telematics system is operating correctly.

Check if the contract status of the service is valid

-

Contact the support center

-

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