Toyota CH-R Service Manual: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

NOTICE:

  • When replacing the radio and display receiver assembly or navigation ECU, always replace it with a new one. If a radio and display receiver assembly or navigation ECU which was installed to another vehicle is used, the following may occur:
    • A communication malfunction DTC is stored.
    • The radio and display receiver assembly or navigation ECU may not operate normally.

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.
Display Function

Symptom

Suspected Area

Link

Black screen (no image appears on the screen)

Proceed to "Black Screen"

Proceed to "Check Software Error History" in Operation Check

If the view behind the vehicle is displayed normally on the radio and display receiver assembly when the ignition switch is on (Start) and the shift position is R, replace the radio and display receiver assembly

Radio and display receiver assembly

Display does not dim (does not change to night screen) with tail switch on

Proceed to "Display does not Dim when Light Control Switch is Turned ON"

Proceed to "Illumination Circuit"

Radio and display receiver assembly

Power does not turn off (screen remains on)

Proceed to "Radio Receiver Power Source Circuit"

Radio and display receiver assembly

Screen is distorted

Proceed to "Radio Receiver Power Source Circuit"

Radio and display receiver assembly

Screen flicker or color distortion

Proceed to "Screen Flicker or Color Distortion"

Proceed to "Radio Receiver Power Source Circuit"

Radio and display receiver assembly

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

Proceed to "Parking Brake Switch Circuit"

Radio and display receiver assembly

General Audio Function

Symptom

Suspected Area

Link

Pressing ignition switch does not turn on system

Proceed to "Radio Receiver Power Source Circuit"

Radio and display receiver assembly

No sound can be heard from speakers

Proceed to "No Sound can be Heard from Speakers"

Proceed to "Mute Signal Circuit between Radio Receiver and DCM (Telematics Transceiver)"*1

Proceed to "Speaker Circuit"

DCM (Telematics transceiver)*1

Radio and display receiver assembly

Abnormal noise occurs

Proceed to "Noise Occurs"

Radio and display 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 Radio Receiver and DCM (Telematics Transceiver)"*1

Proceed to "Speaker Circuit"

DCM (Telematics transceiver)*1

Radio and display receiver assembly

ASL does not function

Check that the ASL function is on

-

Proceed to "Vehicle Speed Signal Circuit between Radio Receiver and Combination Meter"*1

Radio and display receiver assembly

  • *1: w/ Manual (SOS) Switch
Panel Switch and Touch Panel Switch Function

Symptom

Suspected Area

Link

Illumination for panel switches does not come on with tail switch on

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

Proceed to "Illumination Circuit"

Radio and display receiver assembly

Panel switches do not function

Proceed to "Panel Switches do not Function"

Proceed to "Radio Receiver Power Source Circuit"

Radio and display receiver assembly

Touch panel switch does not function

Proceed to "Touch Panel Switch does not Function"

Proceed to "Radio Receiver Power Source Circuit"

Radio and display receiver 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 and display receiver assembly

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

Proceed to "Illumination Circuit"

Radio and display 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 and display receiver assembly

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

Operate the volume switch and turn up the volume level

-

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

-

Radio and display 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 ignition switch on (ACC), and select "Refresh" switch on the station list screen again

-

Radio and display 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 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 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 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

-

Radio and display receiver assembly

AUX Function

Symptom

Suspected Area

Link

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

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

No. 1 stereo jack adapter assembly

Radio and display 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 and display receiver assembly

USB Audio System Function

Symptom

Suspected Area

Link

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

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

No. 1 stereo jack adapter assembly

Radio and display receiver assembly

USB device or "iPod" is not recognized

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio and display receiver assembly

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

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio and display receiver assembly

Album cover art cannot be displayed

Check that display cover art on the USB device or "iPod" 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 and display receiver assembly, update the Gracenote database to the latest version

-

Radio and display receiver assembly

USB device or "iPod" is recognized but cannot play or play in a sorted order

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio and display receiver assembly

User set album cover art cannot be displayed

Check that a JPEG file is used for the album cover art registered to the music data in the "iPod"

-

Radio and display receiver assembly

"iPod" ignition switch cannot be charged

Proceed to "USB Audio System Recognition/Play Error"

No. 1 stereo jack adapter assembly

Radio and display 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 prompts function is on

-

Proceed to "Panel Switches do not Function"

Proceed to "Steering Pad Switch Circuit"

Radio and display receiver assembly

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

Proceed to "Voice is not Recognized"

Proceed to "Microphone Circuit"

Radio and display 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 and display 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 and display 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 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"

Radio and display receiver assembly

"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 and display 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 and display 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 and display receiver assembly

When the ignition switch is turned to 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 running

-

If using "Bluetooth" audio function, cancel the "Bluetooth" audio player connection and check the operation

-

Transfer phonebook data manually

-

Proceed to "Cellular Phone Inspection"

Radio and display receiver assembly

Phonebook data is cleared

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

-

Radio and display receiver assembly

Phonebook data cannot be edited

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

-

Radio and display receiver assembly

All the transferred phonebook data is sorted to "Other"

Check that no applications on the cellular phone are running

-

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 the 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"

-

Proceed to "Cellular Phone Inspection"

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)

-

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 and display 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 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)

-

Check that nothing can cause noise around the microphone (an outlet of the air conditioning system facing the microphone, wind from an open window, additional devices, etc. may affect noise occurrence)

-

Proceed to "Check Hands-free Voice Quality Setting" in Operation Check

Proceed to "Cellular Phone Inspection"

Proceed to "Microphone Circuit"

Radio and display 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)

-

Proceed to "Check Hands-free Voice Quality Setting" in Operation Check

Proceed to "Cellular Phone Inspection"

Proceed to "Microphone Circuit"

Radio and display 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 and display receiver assembly

-

Proceed to "Cellular Phone Inspection"

Radio and display 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 and display receiver assembly

-

Proceed to "Cellular Phone Inspection"

Radio and display 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 and display receiver assembly and cellular phone

-

Check that the cellular phone can send an SMS/MMS/e-mail

-

Proceed to "Cellular Phone Inspection"

Radio and display 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 and display 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 and display 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 and display 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 and display 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 and display receiver assembly

Portable player does not play

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

Radio and display 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 and display receiver assembly

Operation switches for portable player such as play, pause, repeat and random 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 and display receiver assembly

Battery condition of portable player is not displayed

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

Radio and display 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 and display receiver assembly

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

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

Radio and display receiver assembly

Noise occurs or sound skips when portable player plays

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

Radio and display receiver assembly

Registered device cannot be deleted

Proceed to "Registered Device cannot be Deleted"

Radio and display receiver assembly

ECO Information Function

Symptom

Suspected Area

Link

Graph is not displayed on "Trip Information" screen

Recheck with the engine running

-

Radio and display receiver assembly

Cruise range is not displayed on "Trip Information" screen

Turn the ignition switch to ON and recheck

-

Radio and display receiver assembly

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

Turn the ignition switch to ON and recheck

-

Radio and display receiver assembly

Graph is not displayed on "Past record" screen

Turn the ignition switch to ON and recheck

-

Radio and display receiver assembly

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 and display receiver assembly

When the HD radio is playing, cover art is not 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 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

-

Radio and display receiver assembly

SPS channel cannot be selected

Check that HD radio FM mode is selected

-

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

-

Radio and display receiver assembly

When the SPS channel is selected, sound cannot be heard

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

-

Radio and display receiver assembly

SiriusXM Satellite 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"

Radio and display receiver assembly

Satellite radio cannot receive pay-type broadcasts

Proceed to "Satellite Radio Broadcast cannot be Received"

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"

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"

Radio and display receiver assembly

Broadcast station logo cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio and display receiver assembly

Satellite radio text information cannot be displayed

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio and display receiver assembly

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

Proceed to "Satellite Radio Broadcast cannot be Received"

Radio and display receiver assembly

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

Radio and display 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 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

-

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

-

Radio and display receiver assembly

"Wi-Fi" hotspot Function

Symptom

Suspected Area

Link

"Wi-Fi" connection cannot be established

Check if the Toyota Entune App Suite function is available

Check the DCM icon on the multi-display

-

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 and display receiver assembly

Application Link Function

Symptom

Suspected Area

Link

Application link function cannot be started (smartphone battery can be charged)

Check that the smartphone is application link compatible

-

Check smartphone settings

-

Check connection of smartphone to radio and display receiver assembly

-

Radio and display receiver assembly

Application link 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 application link function using another compatible smartphone

-

Radio and display receiver assembly

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