Lexus RX (RX 350L, RX450h) 2016-2022 Repair Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

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

HINT:

  • 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"

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"

No. 1 navigation wire

Navigation ECU

Radio receiver assembly

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

Display Function

Symptom

Suspected Area

Link

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

Proceed to "Black Screen"

Proceed to "Check Software Error History" in Operation Check

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

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

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

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

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

Multi-display assembly

Radio receiver assembly

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

Radio receiver assembly

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

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

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

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

Multi-display assembly

Navigation ECU

Radio receiver assembly

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"

Multi-display assembly

Radio receiver assembly

Power does not turn off (screen remains on)

Proceed to "Radio Receiver Power Source Circuit"

Multi-display assembly

Radio receiver assembly

Noise occurs when screen changes

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

Multi-display assembly

Radio receiver assembly

Screen is distorted

Proceed to "Radio Receiver Power Source Circuit"

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

Multi-display assembly

Radio receiver assembly

Screen flicker or color distortion

Proceed to "Screen Flicker or Color Distortion"

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

Radio receiver assembly

Navigation function switches can be operated while vehicle being driven

Proceed to "Check Vehicle Signal" in Operation Check

Navigation ECU

Radio receiver assembly

Valet Mode cannot be canceled

Proceed to "Valet Mode Cancel" in Operation Check

Radio receiver assembly

Touch panel switch does not function

Proceed to "Touch Panel Switch does not Function"

Proceed to "Radio Receiver Power Source Circuit"

Multi-display assembly

Radio receiver assembly

Panel Switch Function

Symptom

Suspected Area

Link

Illumination for radio receiver assembly switches does not come on when tail switch on

Proceed to "Illumination for Panel Switch does not Come on with Tail Switch ON"

Proceed to "Illumination Circuit"

Radio receiver assembly

Panel switches do not function

Proceed to "Panel Switches do not Function"

Radio receiver assembly

Radio receiver assembly does not dim at night

Radio receiver assembly

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"

Switch lights of remote touch (remote operation controller assembly) do not illuminate

Proceed to "Switch Lights of Remote Touch do not Illuminate"

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"

Remote touch screen illumination does not turn on

Refer to the Lighting System (INT) section

Switch operation of remote touch (remote operation controller assembly) is not accepted

Proceed to "Switch Operation of Remote Touch not Accepted"

Pointer displayed/not displayed repeatedly

Proceed to "Pointer Displayed/not Displayed Repeatedly"

Pointer is not displayed on screen or pointer does not move

Proceed to "Pointer not Displayed on Screen or Pointer does not Move"

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)

Steering Pad Switch Function

Symptom

Suspected Area

Link

System cannot be operated by steering pad switch

Proceed to "Panel Switches do not Function"

Proceed to "Steering Pad Switch Circuit"

Radio receiver assembly

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

Proceed to "Illumination Circuit"

Radio receiver assembly

Navigation Function

Symptom

Suspected Area

Link

"No GPS signal" mark is displayed

Proceed to "No GPS signal" mark is displayed"

Navigation antenna assembly

Antenna cord sub-assembly (w/ Rear No. 2 Seat)

Antenna cord sub-assembly (w/o Rear No. 2 Seat)

Navigation ECU

Date and time on navigation screen are different from actual date and time

Proceed to "No GPS signal" mark is displayed"

Navigation antenna assembly

Antenna cord sub-assembly (w/ Rear No. 2 Seat)

Antenna cord sub-assembly (w/o Rear No. 2 Seat)

Navigation ECU

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

Proceed to "No GPS signal" mark is displayed"

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

Navigation antenna assembly

Antenna cord sub-assembly (w/ Rear No. 2 Seat)

Antenna cord sub-assembly (w/o Rear No. 2 Seat)

Navigation ECU

Cursor or map rotates when vehicle is stopped

Proceed to "Cursor or Map Rotates when Vehicle Stopped"

Navigation ECU

Vehicle position mark moves in the opposite direction to the vehicle

Proceed to "Cursor or Map Rotates when Vehicle Stopped"

Proceed to "Check Vehicle Signal" in Operation Check

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

Navigation ECU

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

Proceed to "No GPS signal" mark is displayed"

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

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

Antenna cord sub-assembly (w/ Rear No. 2 Seat)

Antenna cord sub-assembly (w/o Rear No. 2 Seat)

Navigation ECU

Vehicle position mark moves slow or fast

Proceed to "No GPS signal" mark is displayed"

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

Navigation antenna assembly

Antenna cord sub-assembly (w/ Rear No. 2 Seat)

Antenna cord sub-assembly (w/o Rear No. 2 Seat)

Navigation ECU

Voice guidance does not function

Proceed to "Voice Guidance does not Function"

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

Proceed to "Speaker Circuit"

DCM (telematics transceiver)

Stereo component amplifier assembly

Navigation ECU

Radio receiver assembly

Map display is incomplete

Navigation ECU

Route cannot be calculated

Proceed to "Route cannot be Calculated"

Navigation ECU

Navigation system cannot record memory point registration or each item setting

Navigation ECU

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

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

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

Weather and traffic information cannot be obtained

Check the traffic information and data services settings

-

Proceed to "Weather and traffic information cannot be obtained"

Radio receiver assembly

The obtained weather and traffic information differs from the actual weather and traffic condition or the obtained weather and traffic information is inaccurate

Change the time zone and search again

-

Change the vehicle location and search again

-

Customizable parameters cannot be changed (customizable parameters can be changed by using the Techstream)

Radio receiver assembly

Reverse signal does not change in vehicle signal check mode

Check the shift indicator display on the combination meter assembly

-

Radio receiver assembly

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

Check the parking brake indicator display on the combination meter assembly

-

Radio receiver assembly

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"

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

Radio receiver assembly

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

Check the volume settings

-

Radio 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

-

Radio receiver assembly

Radio broadcast can be received but station list cannot be updated

Select "Refresh" on the station list screen

-

Wait for 10 minutes with the engine switch on (ACC), and select "Refresh" on the station list screen again

-

Radio receiver assembly

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

Check that the cache radio setting is on

-

Radio 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 FM/AM 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

-

Radio 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

-

Radio receiver assembly

General Audio Function

Symptom

Suspected Area

Link

Pressing power switch does not turn on system

Proceed to "Radio Receiver Power Source Circuit"

Radio receiver assembly

No sound can be heard from speakers

Proceed to "No Sound can be Heard from Speakers"

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

Proceed to "Speaker Circuit"

DCM (telematics transceiver)

Stereo component amplifier assembly

Radio receiver assembly

Abnormal noise occurs

Proceed to "Noise Occurs"

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

DCM (telematics transceiver)

Stereo component amplifier assembly

Radio receiver assembly

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)"

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

Proceed to "Speaker Circuit"

DCM (telematics transceiver)

Replace the stereo component amplifier assembly if the value of the displayed volume changes in accordance with the operation of the volume control

Radio receiver assembly

ASL does not function

Check that the ASL function is on

-

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

Stereo component amplifier assembly

Radio receiver assembly

CD or DVD 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

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

Radio receiver assembly

Disc cannot be inserted/played or disc is ejected right after insertion

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

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

Disc cannot be ejected

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

Proceed to "Disc cannot be Ejected"

Disc sound skips

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

Proceed to "CD/DVD Sound Skips"

While vehicle is stopped, DVD cannot be viewed even when parking brake is applied (parking brake switch is on)

Check the parking brake indicator display on the combination meter assembly

-

Proceed to "Check Vehicle Signal" in Operation Check

Radio receiver assembly

Screen color is poor only when watching a DVD

Change the color settings on the screen adjustment screen

-

Radio receiver assembly

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

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

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

When disc is playing, some cover art is not displayed

When a song unregistered to the Gracenote CDDB is playing, its cover art cannot be displayed

-

When disc is playing, cover art cannot be displayed

Radio receiver assembly

Album cover art cannot be displayed

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

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"

Proceed to "Steering Pad Switch Circuit"

Navigation ECU

Radio receiver assembly

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 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 "Voice is not Recognized"

Proceed to "Microphone Circuit"

Navigation ECU

Mobile assistant function does not operate (w/ Mobile Assistant Function)

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"

Proceed to "Steering Pad Switch Circuit"

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

Radio receiver assembly

"Wi-Fi" hotspot Function (w/ "Wi-Fi" hotspot Function)

Symptom

Suspected Area

Link

"Wi-Fi" connection cannot be established

Check if the LEXUS App Suite function is available

Check the DCM icon on the multi-display assembly

-

Check the status of the "Wi-Fi" hotspot contract

-

Check that the "Wi-Fi" hotspot function is on

-

Check the condition of the "Wi-Fi" hotspot indicator

-

Check if a known good "Wi-Fi" compatible device can be connected to the vehicle

-

Move the vehicle to an area with little wave interference and remove any optional components which may cause wave interference and then check again

-

Radio receiver assembly

"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"

Radio receiver assembly

"Bluetooth" compatible cellular phone cannot be registered

Proceed to "Cellular Phone Registration Failure"

"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"

Radio receiver assembly

"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

"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"

Radio receiver assembly

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"

Radio receiver assembly

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"

Radio receiver assembly

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 data 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"

Radio receiver assembly

Phonebook data is cleared

Check that the phonebook data automatic transfer setting of the in-vehicle device is off

-

Radio receiver assembly

Phonebook data cannot be edited

Check that the phonebook data automatic transfer setting of the in-vehicle device is off

-

Radio receiver assembly

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"

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"

Radio 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)

-

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

Proceed to "Cellular Phone Inspection"

Radio receiver assembly

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

Proceed to "Cellular Phone Inspection"

Radio 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)

-

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

Proceed to "Cellular Phone Inspection"

Proceed to "Microphone Circuit"

Radio receiver assembly

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

Proceed to "Cellular Phone Inspection"

Proceed to "Microphone Circuit"

Radio receiver assembly

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"

Radio receiver assembly

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"

Radio receiver assembly

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"

Radio receiver assembly

  • *: w/ SMS/MMS/e-mail Function
"Bluetooth" Audio Function

Symptom

Suspected Area

Link

Portable player cannot be registered

Proceed to "Portable Player cannot be Registered"

Radio receiver assembly

Portable player cannot be connected manually/automatically

Proceed to "Portable Player cannot be Registered"

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

Radio receiver assembly

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"

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

Radio receiver assembly

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"

Radio receiver assembly

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

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

Radio receiver assembly

Portable player does not play

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

Radio receiver assembly

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"

Radio receiver assembly

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"

Radio receiver assembly

"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"

Radio receiver assembly

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"

Radio receiver assembly

Noise occurs or sound skips when portable player plays

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

Radio receiver assembly

Registered device cannot be deleted

Proceed to "Registered Device cannot be Deleted"

Radio receiver assembly

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 and Stereo Jack Adapter"

No. 1 stereo jack adapter assembly

Radio receiver assembly

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"

No. 1 stereo jack adapter assembly

Radio receiver assembly

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

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio receiver assembly

USB device or "iPod" is not recognized

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio receiver assembly

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

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

"iPod" battery cannot be charged

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio receiver assembly

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"

No. 1 stereo jack adapter assembly

Radio receiver assembly

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 and Stereo Jack Adapter"

No. 1 stereo jack adapter assembly

Radio receiver assembly

"IF-BOX_USB" is not displayed on system check mode screen

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio receiver assembly

Stereo jack adapter light does not illuminate

Proceed to "Stereo Jack Adapter Light does not Illuminate"

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 and Stereo Jack Adapter"

No. 1 stereo jack adapter assembly

Radio receiver assembly

"AUX/VTR" is not displayed on system check mode screen

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

No. 1 stereo jack adapter assembly

Radio receiver assembly

Stereo jack adapter light does not illuminate

Proceed to "Stereo Jack Adapter Light does not Illuminate"

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"Unable to update the software. Please try again later." is displayed

There may be times that the software update cannot be performed as a communication device is busy or media is still being prepared. In this case, perform the update after waiting a certain period of time.

-

Make inquiry to the service 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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"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 communication again*

-

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"Software update service finished." is displayed

Make inquiry to the service center and check whether service is a finished device

-

Make inquiry to the service center whether there is any problem with the send log to the device

-

Make inquiry to the service center whether the model ID checked on the software update screen and the model ID sent from the device are same

-

If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"There is a software update. Please contact your dealer." or similar is displayed

Make inquiry to the service center whether there is any problem with the send log to the device

-

Perform the software update using the communication again*

-

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"There is a software update. Please perform update with a PC." or similar is displayed

Check with the service center whether the size of the software the device is trying to update can be sent by DCM (telematics transceiver). If the size cannot be sent, perform the software update using a USB memory device*

-

Make inquiry to the service center whether there is any problem with the send log to the device

-

Perform the software update using the communication again*

-

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"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 service 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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"There is a problem with the downloaded data. Please try again later." is displayed

Make inquiry to the service center whether there is any problem with the download software

-

Perform the software update using the communication again*

-

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"New software is not compatible with the system." is displayed

Make inquiry to the service 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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"The combination of update files is abnormal. Please download it again" or similar is displayed

Make inquiry to the service 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

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

"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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"Software could not be updated. Please contact your dealer." is displayed

Make inquiry to the service 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 service center whether there is any problem with the download software

-

Make inquiry to the service center whether there is any problem with the send log to the device

-

Perform the software update using the communication again

-

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

"There is insufficient free space. Please contact your dealer." is displayed

Perform the software update using the communication again

-

If there is software update data for the navigation but the software update cannot be performed, replace the navigation ECU

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

The software update could not be performed using communication*

Follow the instruction when an on-screen message is displayed

-

Check that "Check with service center" is displayed and the USB memory device is not 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

-

Check that the telematics system is operating normally

-

Perform the software update using the communication again

-

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

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

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

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

Update information cannot be checked when trying to update the software using the communication*

Explain to the customer that "Update information" is not displayed on the software update screen when the software is up to date

-

Perform the software update using a USB memory device because a software update using communication is not possible when an on-screen message other than "Current software is up to date. There is no need to update" is displayed when "Check with service center" is selected

-

Make inquiry to the service center whether there is any problem with the download software

-

Perform the software update using the communication again

-

Perform the software update using the USB memory device again

-

If the navigation software update information cannot be checked, replace the navigation ECU

HINT:

If the radio receiver assembly can start up after disconnecting the power source connector of the navigation ECU, replace the navigation ECU. (Wait at least 6 minutes after turning the power switch off before disconnecting the power source connector.)

If the audio software update information cannot be checked, replace the radio receiver assembly

Version display of the software update screen or the display of the update information screen is abnormal

Make inquiry to the service center whether there is any problem with the download software

-

Perform the software update using the communication again

-

Perform the software update using the USB memory device again

-

If the version display of the navigation is abnormal, replace the navigation ECU

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

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 was performed without receiving the GPS, check with the customer if the software update is not 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 in the order from oldest when there are 20 or more history recorded

-

Wait and see until the next software update and replace the navigation ECU if the symptom reproduces

HD Radio Function (w/ 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

-

Radio receiver assembly

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

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

Radio 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

-

Radio receiver assembly

SPS channel cannot be selected

Check that HD radio FM mode is selected

-

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

-

Radio receiver assembly

When the SPS channel is selected, sound cannot be heard

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

-

Radio receiver assembly

eOwner's Manual Function

Symptom

Suspected Area

Link

The eOwner's Manual CD or USB memory device is inserted but "Please check that the media is properly inserted" is displayed and installation cannot be started.

Check that the inserted media (CD or USB memory device) is recognized on the multi-display audio screen

-

Using a personal computer, check that only the following 4 files are stored on the inserted media (CD or USB memory device)

  • contents.sig
  • contents.tar
  • product_code
  • product_code.sig

-

Check that the inserted CD is the installation CD supplied with the owner's manual.

-

Check that the inserted USB memory device is an official device distributed by the manufacturer

-

Check that other CD's or USB memory devices containing music data can be recognized

-

During installation of the eOwner's Manual, "There is a problem with the eOwner's Manual data. Please install again." is displayed.

Check that the removal operations have not been performed while the media (CD or USB memory device) is being read

-

Using a personal computer, check that only the following 4 files are stored on the inserted media (CD or USB memory device)

  • contents.sig
  • contents.tar
  • product_code
  • product_code.sig

-

Check that the inserted CD is the installation CD supplied with the owner's manual

-

Perform installation using an installation CD supplied with an owner's manual from another vehicle of the same model

-

The eOwner's manual cannot be displayed.

After using the initialization specific data to perform initialization, perform installation using the installation CD supplied with the owner's manual

-

Parts of the eOwner's manual cannot be displayed.

After using the initialization specific data to perform initialization, perform installation using the installation CD supplied with the owner's manual

-

The languages that can be selected on the multi-display cannot be selected within the eOwner's Manual.

Explain to the customer that the supported manual language is matched to the language in the owner's manual booklet and therefore cannot be selected

-

Changing the theme color on the multi-display does not change the color within the eOwner's Manual.

Explain to the customer that changing theme colors is not supported for the eOwner's manual

-

Sirius XM System Function (w/ SXM System)

Symptom

Suspected Area

Link

Satellite radio broadcast cannot be received or reception is bad

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio receiver assembly

Satellite radio cannot receive pay-type broadcasts

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio 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"

Radio 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"

Radio receiver assembly

Broadcast station logo cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio receiver assembly

Satellite radio text information cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio receiver assembly

Satellite radio broadcast station cannot be selected (scan cannot be performed)

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio receiver assembly

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

When a song unregistered to the Gracenote CDDB is playing, its cover art cannot be displayed

-

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

Radio receiver assembly

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

Check that the cache radio setting is on

-

Radio 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

-

Radio 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

-

Radio receiver assembly

"Apple CarPlay" Function (w/ "Apple CarPlay" Function)

Symptom

Suspected Area

Link

"Apple CarPlay" function cannot be started (smartphone battery can be charged)

Check that the smartphone is "Apple CarPlay" compatible

-

Check that the smartphone is connected to the No. 1 stereo jack adapter assembly via an appropriate cable

-

Check that "Siri" is turned on on the smartphone

-

Check radio receiver assembly settings

-

Check connection of smartphone to radio receiver assembly

-

Radio receiver assembly

"Apple CarPlay" function can be started but sound cannot be heard (smartphone battery can be charged)

Check that sound can be output from the speakers

-

Check that sound can be output from the smartphone

-

Check that the volume is not set to "0"

-

Check that mute is off

-

Check "Apple CarPlay" function using another compatible smartphone

-

Radio receiver assembly

"Android Auto" Function (w/ "Android Auto" Function)

Symptom

Suspected Area

Link

"Android Auto" function cannot be started (smartphone battery can be charged)

Check that the smartphone is "Android Auto" compatible

-

Check that the smartphone is connected to the No. 1 stereo jack adapter assembly via an appropriate cable

-

Check that "Android Auto" is installed on the smartphone

-

Check radio receiver assembly settings

-

Check connection of smartphone to radio receiver assembly

-

Radio receiver assembly

"Android Auto" function can be started but sound cannot be heard (smartphone battery can be charged)

Check that sound can be output from the speakers

-

Check that sound can be output from the smartphone

-

Check that the volume is not set to "0"

-

Check that mute is off

-

Check "Android Auto" function using another compatible smartphone

-

Radio receiver assembly

ECO Information Function

Symptom

Suspected Area

Link

Information is not displayed or updated on the "Trip Information" screen

Turn the engine switch on (IG) and recheck

-

Check that the SFI system is operating normally

-

Navigation ECU

Information is not displayed or updated on the "History" screen

Turn the engine switch on (IG) and recheck

-

Check that the meter/gauge system is operating normally

-

Navigation ECU

"Fuel Consumption" icon is dimmed

Check if other icons or items displayed on screen have any problems

-

Navigation ECU

Graph is not displayed on "Trip Information" screen

Recheck with the engine running

-

Check that the SFI system is operating normally

-

Navigation ECU

Cruise range is not displayed on "Trip Information" screen

Turn the engine switch on (IG) and recheck

-

Navigation ECU

Graph is not updated on "History" screen even though "Clear" is selected

Turn the engine switch on (IG) and recheck

-

Navigation ECU

Graph is not displayed on "History" screen

Turn the engine switch on (IG) and recheck

-

Navigation ECU

    System Description
    SYSTEM DESCRIPTION NAVIGATION SYSTEM OUTLINE (a) Vehicle position tracking methods It is essential that the navigation system correctly tracks the current vehicle position and displays it on the map. ...

    Terminals Of Ecu
    TERMINALS OF ECU HINT: Check from the rear of the connector while it is connected to the components. RADIO RECEIVER ASSEMBLY Terminal No. (Symbol) Wiring Color Terminal Description Condition ...

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