Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001O4FX
Model Year Start: 2021 Model: GR Corolla Prod Date Range: [04/2020 - 09/2022]
Title: CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE; 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]

PROBLEM SYMPTOMS TABLE

NOTICE:

  • If the DCM (telematics transceiver) has been replaced, perform the DCM Activation procedure.

    Click here 2021 - 2025 MY Corolla Corolla Hatchback GR Corolla [04/2020 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): DCM ACTIVATION

  • Before replacing the DCM (telematics transceiver), refer to Registration.

    w/ Smart Key System: Click here 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

    w/o Smart Key System: Click here 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: IMMOBILISER SYSTEM (w/o Smart Key System): REGISTRATION

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.

Toyota Audio Multimedia On-screen Message

Symptom

Suspected Area

Link

A message is temporarily displayed indicating to try again after waiting for a while because the lines are busy

This is caused when there is a problem with the radio wave signal conditions or when the call center is busy. This is not a malfunction. (Inform the customer that this is not a malfunction and ask them to use the system as is.)

-

Contact the call center

-

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

DCM (Telematics Transceiver)

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

A message is displayed indicating to try again after waiting for a while because information cannot be retrieved due to a busy line, etc.

Wait for a while and perform the operation again in a different location

-

Contact the call center

-

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

DCM (Telematics Transceiver)

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

A message is displayed indicating to try again because information was not able to be retrieved

Contact the call center

-

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

DCM (Telematics Transceiver)

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

A message is displayed indicating to try again after waiting for a while because communication is being setup

The system is trying to detect the DCM (telematics transceiver). Wait for a while and perform the operation again

-

Contact the call center

-

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

DCM (Telematics Transceiver)

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

A message is displayed indicating to move the vehicle into a communication service area as it is outside a service area

Wait for a while and perform the operation again in a different location (Within the communication service area)

-

Contact the call center

-

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

DCM (Telematics Transceiver)

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

A message is displayed indicating to move the vehicle to where a GPS signal can be received because the time data is old

Proceed to ""No GPS signal" mark is displayed"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): "No GPS signal" mark is displayed

If the "No GPS signal" mark is displayed, wait for a while and perform the operation again in a different location

-

If the problem symptom is duplicated, replace the radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

A message is displayed indicating that this service is not available now

Explain to the customer that the service is currently not available.

-

A message is displayed indicating to ask the dealer about applying for the service as it is necessary to create a contract before using the service

Check the status of the paid service contract.

-

Contact the call center

-

Destination Function (w/ Navigation System)

Symptom

Suspected Area

Link

Cannot contact call center when Call Dest. Assist is selected on Destination Assist Connect screen

Contact Telematics Service Provider to inquire about network status

-

Proceed to "UNABLE TO CONNECT TO CALL CENTER"

2021 - 2025 MY Corolla Corolla Hatchback GR Corolla [04/2020 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): UNABLE TO CONNECT TO CALL CENTER

Proceed to "DCM Data Signal Circuit between Navigation ECU and DCM"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): DCM Data Signal Circuit between Navigation ECU and DCM

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

DCM (Telematics Transceiver)

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: DCM(TELEMATICS TRANSCEIVER): REMOVAL

Other caller's voice volume cannot be adjusted using the Destination Assist Connect screen

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

Dynamic Voice Recognition (w/ Navigation System)

Symptom

Suspected Area

Link

Does not recognize voice commands performed to contact support center

Check if the Toyota Audio Multimedia System service is available

-

Check if the normal voice recognition function is operating correctly

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE

Proceed to "Does not Recognize Voice Commands Performed to Contact Support Center"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Does not Recognize Voice Commands Performed to Contact Support Center

The microphone button on the keyboard input screen does not become enabled

Check if the Toyota Audio Multimedia System service is available

-

Proceed to "UNABLE TO CONNECT TO CALL CENTER"

2021 - 2025 MY Corolla Corolla Hatchback GR Corolla [04/2020 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): UNABLE TO CONNECT TO CALL CENTER

Toyota Audio Multimedia

Symptom

Suspected Area

Link

"Toyota" app function error message is displayed on the screen

Follow on screen instructions

-

Proceed to "Confirm Cellular Phone Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Cellular Phone Functionality

Proceed to "Confirm Vehicle Headunit Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Vehicle Headunit Functionality

Proceed to "App Suite Connect Reset Procedure" in Operation Check

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): OPERATION CHECK

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

"Toyota" app and services are not operating as expected

Proceed to "Confirm Cellular Phone Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Cellular Phone Functionality

Proceed to "Confirm Vehicle Headunit Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Vehicle Headunit Functionality

Proceed to "App Suite Connect Reset Procedure" in Operation Check

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): OPERATION CHECK

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

"Toyota" app voice recognition is not possible (Voice recognition on the audio and visual system*1 or navigation system*2 is normal)

Proceed to "Confirm Cellular Phone Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Cellular Phone Functionality

Proceed to "Confirm Vehicle Headunit Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Vehicle Headunit Functionality

Proceed to "App Suite Connect Reset Procedure" in Operation Check

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): OPERATION CHECK

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

Sound quality of the "Toyota" app function is poor

Check that cellular phone handset volume is turned up

-

Check that adequate signal is maintained while the vehicle is being driven

-

Proceed to "Confirm Cellular Phone Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Cellular Phone Functionality

Proceed to "Confirm Vehicle Headunit Functionality"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Confirm Vehicle Headunit Functionality

Proceed to "App Suite Connect Reset Procedure" in Operation Check

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): OPERATION CHECK

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

The "Toyota" app (Fleet App) cannot be installed.

Proceed to "UNABLE TO CONNECT TO CALL CENTER"

2021 - 2025 MY Corolla Corolla Hatchback GR Corolla [04/2020 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): UNABLE TO CONNECT TO CALL CENTER

Proceed to "DCM Data Signal Circuit between Radio Receiver and DCM"*1

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): DCM Data Signal Circuit between Radio Receiver and DCM

Proceed to "DCM Data Signal Circuit between Navigation ECU and DCM"*2

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): DCM Data Signal Circuit between Navigation ECU and DCM

Proceed to "App Suite Connect Reset Procedure" in Operation Check

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): OPERATION CHECK

Radio and display receiver assembly

2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]; AUDIO / VIDEO: RADIO RECEIVER: REMOVAL

Communication Based Voice Recognition Function (w/ Navigation System)

Symptom

Suspected Area

Link

Does not recognize voice commands performed to contact support center

Check if the connected service is available

-

Check if the normal voice recognition function is operating correctly

2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 09/2022]; NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM: PROBLEM SYMPTOMS TABLE

Proceed to "Does not Recognize Voice Commands Performed to Contact Support Center"

2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; CELLULAR COMMUNICATION: TOYOTA AUDIO MULTIMEDIA SYSTEM (for Gasoline Model): Does not Recognize Voice Commands Performed to Contact Support Center

The microphone button on the keyboard input screen does not become enabled

Check if the connected service is available

-

Proceed to "UNABLE TO CONNECT TO CALL CENTER"

2021 - 2025 MY Corolla Corolla Hatchback GR Corolla [04/2020 -        ]; CELLULAR COMMUNICATION: SAFETY CONNECT SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE

  • *1: w/o Navigation System
  • *2: w/ Navigation System