Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001CBPK
Model Year Start: 2019 Model: GR Corolla Prod Date Range: [06/2018 - 09/2022]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): PROBLEM SYMPTOMS TABLE; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]

PROBLEM SYMPTOMS TABLE

HINT:

  • Use the table below to help determine the cause of problem symptoms.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
  • Because the order of diagnosis is important to allow correct diagnosis, make sure to begin troubleshooting using How to Proceed with Troubleshooting when CAN communication system related DTCs are output.

    Click here 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING

Result List of How to Proceed with Troubleshooting

Symptom

Suspected Area

Link

Either of the following:

  • The problem symptom is that of Problem Symptom Pattern B and the suspected area is in Bus 1.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 1 is 70 Ω or more.

Open in Bus 1 Main Bus Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 1 Main Bus Line 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 1 Main Bus Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 1 Main Bus Line

Either of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short between CAN bus lines (CANH and CANL) in Bus 1 is suspected.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 1 is below 54 Ω.

Short in Bus 1 Lines

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Lines for Short Circuit 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 03/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Lines for Short Circuit 2020 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Lines for Short Circuit 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Lines for Short Circuit

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to +B in a CAN bus line (CANH or CANL) in Bus 1 is suspected.
  • Resistance between CANH and +B in Bus 1 is below 6 kΩ.
  • Resistance between CANL and +B in Bus 1 is below 6 kΩ.

Short to +B in Bus 1 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to +B 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 03/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to +B 2020 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to +B 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to +B

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to ground in a CAN bus line (CANH or CANL) in Bus 1 is suspected.
  • Resistance between CANH and ground in Bus 1 is below 200 Ω.
  • Resistance between CANL and ground in Bus 1 is below 200 Ω.

Short to GND in Bus 1 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to GND 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 03/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to GND 2020 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to GND 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 1 Line for Short to GND

Resistance between CANH and CANL is normal in Bus 1 and the problem symptom pattern in How to Use "Communication Bus Check" Screen in Inspection matches the symptoms when there is an open in one wire of a branch line in Bus 1.

Open in One Side of Bus 1 Branch Line

2019 - 2020 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 03/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 1 Branch Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 1 Branch Line

Either of the following:

  • The problem symptom is that of Problem Symptom Pattern B and the suspected area is in Bus 2.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 2 is 70 Ω or more.

Open in Bus 2 Main Bus Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 2 Main Bus Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 2 Main Bus Line

Either of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short between CAN bus lines (CANH and CANL) in Bus 2 is suspected.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 2 is below 54 Ω.

Short in Bus 2 Lines

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 2 Lines for Short Circuit 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 2 Lines for Short Circuit

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to +B in a CAN bus line (CANH or CANL) in Bus 2 is suspected.
  • Resistance between CANH and +B in Bus 2 is below 6 kΩ.
  • Resistance between CANL and +B in Bus 2 is below 6 kΩ.

Short to +B in Bus 2 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 2 Line for Short to +B 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 2 Line for Short to +B

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to ground in a CAN bus line (CANH or CANL) in Bus 2 is suspected.
  • Resistance between CANH and ground in Bus 2 is below 200 Ω.
  • Resistance between CANL and ground in Bus 2 is below 200 Ω.

Short to GND in Bus 2 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 2 Line for Short to GND 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 2 Line for Short to GND

Resistance between CANH and CANL is normal in Bus 2 and the problem symptom pattern in How to Use "Communication Bus Check" Screen in Inspection matches the symptoms when there is an open in one wire of a branch line in Bus 2.

Open in One Side of Bus 2 Branch Line

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 2 Branch Line

Either of the following:

  • The problem symptom is that of Problem Symptom Pattern B and the suspected area is in Bus 3.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 3 is 70 Ω or more.

Open in Bus 3 Main Bus Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 3 Main Bus Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 3 Main Bus Line

Either of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short between CAN bus lines (CANH and CANL) in Bus 3 is suspected.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 3 is below 54 Ω.

Short in Bus 3 Lines

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Lines for Short Circuit 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Lines for Short Circuit 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Lines for Short Circuit 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Lines for Short Circuit

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to +B in a CAN bus line (CANH or CANL) in Bus 3 is suspected.
  • Resistance between CANH and +B in Bus 3 is below 6 kΩ.
  • Resistance between CANL and +B in Bus 3 is below 6 kΩ.

Short to +B in Bus 3 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to +B 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to +B 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to +B 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to +B

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to ground in a CAN bus line (CANH or CANL) in Bus 3 is suspected.
  • Resistance between CANH and ground in Bus 3 is below 200 Ω.
  • Resistance between CANL and ground in Bus 3 is below 200 Ω.

Short to GND in Bus 3 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to GND 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to GND 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to GND 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 3 Line for Short to GND

Resistance between CANH and CANL is normal in Bus 3 and the problem symptom pattern in How to Use "Communication Bus Check" Screen in Inspection matches the symptoms when there is an open in one wire of a branch line in Bus 3.

Open in One Side of Bus 3 Branch Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 3 Branch Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 3 Branch Line

Either of the following:

  • The problem symptom is that of Problem Symptom Pattern B and the suspected area is in Bus 4.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 4 is 70 Ω or more.

Open in Bus 4 Main Bus Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 4 Main Bus Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 4 Main Bus Line

Either of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short between CAN bus lines (CANH and CANL) in Bus 4 is suspected.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 4 is below 54 Ω.

Short in Bus 4 Lines

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 4 Lines for Short Circuit 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 4 Lines for Short Circuit

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to +B in a CAN bus line (CANH or CANL) in Bus 4 is suspected.
  • Resistance between CANH and +B in Bus 4 is below 6 kΩ.
  • Resistance between CANL and +B in Bus 4 is below 6 kΩ.

Short to +B in Bus 4 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 4 Line for Short to +B 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 4 Line for Short to +B

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to ground in a CAN bus line (CANH or CANL) in Bus 4 is suspected.
  • Resistance between CANH and ground in Bus 4 is below 200 Ω.
  • Resistance between CANL and ground in Bus 4 is below 200 Ω.

Short to GND in Bus 4 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 4 Line for Short to GND 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 4 Line for Short to GND

Resistance between CANH and CANL is normal in Bus 4 and the problem symptom pattern in How to Use "Communication Bus Check" Screen in Inspection matches the symptoms when there is an open in one wire of a branch line in Bus 4.

Open in One Side of Bus 4 Branch Line

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 4 Branch Line

Either of the following:

  • The problem symptom is that of Problem Symptom Pattern B and the suspected area is in Bus 5.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 5 is 70 Ω or more.

Open in Bus 5 Main Bus Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 5 Main Bus Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in Bus 5 Main Bus Line

Either of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short between CAN bus lines (CANH and CANL) in Bus 5 is suspected.
  • Resistance between CAN bus lines (CANH and CANL) in Bus 5 is below 54 Ω.

Short in Bus 5 Lines

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 5 Lines for Short Circuit 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 5 Lines for Short Circuit

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to +B in a CAN bus line (CANH or CANL) in Bus 5 is suspected.
  • Resistance between CANH and +B in Bus 5 is below 6 kΩ.
  • Resistance between CANL and +B in Bus 5 is below 6 kΩ.

Short to +B in Bus 5 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 5 Line for Short to +B 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 5 Line for Short to +B

Any of the following:

  • The problem symptom is similar to that of Problem Symptom Pattern A and a short to ground in a CAN bus line (CANH or CANL) in Bus 5 is suspected.
  • Resistance between CANH and ground in Bus 5 is below 200 Ω.
  • Resistance between CANL and ground in Bus 5 is below 200 Ω.

Short to GND in Bus 5 Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 5 Line for Short to GND 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Check Bus 5 Line for Short to GND

Resistance between CANH and CANL is normal in Bus 5 and the problem symptom pattern in How to Use "Communication Bus Check" Screen in Inspection matches the symptoms when there is an open in one wire of a branch line in Bus 5.

Open in One Side of Bus 5 Branch Line

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 5 Branch Line 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Open in One Side of Bus 5 Branch Line

HINT:

The suspected communication stop area can be determined based on the ECUs or sensors that are displayed as not communicating on the "Communication Bus Check" screen or "Communication Bus Check (Detail)" screen and by referring to the following table.

Communication Stop Mode Table (Open in bus line or other communication stop)

Symptom

Suspected Area

Link

Either of the following is met:

  • Communication stop for "Skid Control (ABS/VSC/TRAC)" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Skid Control (ABS/VSC/TRAC)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Skid Control (ABS/VSC/TRAC)" is 6 or more.)

Skid Control ECU Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Skid Control ECU Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Skid Control ECU Communication Stop Mode

Either of the following is met:

  • Communication stop for "Air Conditioning Amplifier" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Air Conditioning Amplifier" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Air Conditioning Amplifier" is 6 or more.)

Air Conditioning Amplifier Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Air Conditioning Amplifier Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Air Conditioning Amplifier Communication Stop Mode

Either of the following is met:

  • Communication stop for "Power Steering (EPS)" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Power Steering (EPS)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Power Steering (EPS)" is 6 or more.)

Power Steering ECU Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Power Steering ECU Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Power Steering ECU Communication Stop Mode

Either of the following is met:

  • Communication stop for "Spiral cable (Steering Angle Sensor)" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Spiral cable (Steering Angle Sensor)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Spiral cable (Steering Angle Sensor)" is 6 or more.)

Steering Angle Sensor Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Steering Angle Sensor Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Steering Angle Sensor Communication Stop Mode

Either of the following is met:

  • Communication stop for "ECM (Engine)" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "ECM (Engine)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "ECM (Engine)" is 6 or more.)

ECM Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): ECM Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): ECM Communication Stop Mode

Either of the following is met:

  • Communication stop for "TCM" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "TCM" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "TCM" is 6 or more.)

Transmission Control ECU Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Transmission Control ECU Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Transmission Control ECU Communication Stop Mode

Either of the following is met:

  • Communication stop for "Main Body" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Main Body" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Main Body" is 6 or more.)

Main Body ECU Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Main Body ECU Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Main Body ECU Communication Stop Mode

Either of the following is met:

  • Communication stop for "Combination Meter" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Combination Meter" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Combination Meter" is 6 or more.)

Combination Meter ECU Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Combination Meter ECU Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Combination Meter ECU Communication Stop Mode

Either of the following is met:

  • Communication stop for "Certification (Smart)" and/or "Power Management" is indicated on the "Communication Bus Check" screen of the GTS.
  • Communication stop history for "Certification (Smart)" and/or "Power Management" is indicated on the "Communication Bus Check (Detail)" screen of the GTS. (The Lost Communication Time value for "Certification (Smart)" and/or "Power Management" is 6 or more.)

Certification ECU Communication Stop Mode

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Certification ECU Communication Stop Mode

Either of the following is met:

  • Communication stop for "Airbag" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Airbag" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Airbag" is 6 or more.)

Center Airbag Sensor Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Center Airbag Sensor Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Center Airbag Sensor Communication Stop Mode

Either of the following is met:

  • Communication stop for "HL AutoLeveling/AFS/AHS (Sub)" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "HL AutoLeveling/AFS/AHS (Sub)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "HL AutoLeveling/AFS/AHS (Sub)" is 6 or more.)

Headlight ECU RH Communication Stop Mode

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Headlight ECU RH Communication Stop Mode

Either of the following is met:

  • Communication stop for "HL AutoLeveling/AFS/AHS" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "HL AutoLeveling/AFS/AHS" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "HL AutoLeveling/AFS/AHS" is 6 or more.)

Headlight ECU LH Communication Stop Mode

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Headlight ECU LH Communication Stop Mode

Either of the following is met:

  • Communication stop for "Display and Navigation (AVN)" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Display and Navigation (AVN)" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Display and Navigation (AVN)" is 6 or more.)

Radio Receiver Assembly Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Radio Receiver Assembly Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Radio Receiver Assembly Communication Stop Mode

Either of the following is met:

  • Communication stop for "Blind Spot Monitor Master" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Blind Spot Monitor Master" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Blind Spot Monitor Master" is 6 or more.)

Blind Spot Monitor Sensor Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Blind Spot Monitor Sensor Communication Stop Mode 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Blind Spot Monitor Sensor Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Blind Spot Monitor Sensor Communication Stop Mode

Either of the following is met:

  • Communication stop for "DCM" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "DCM" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "DCM" is 6 or more.)

DCM Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DCM Communication Stop Mode 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DCM Communication Stop Mode 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DCM Communication Stop Mode 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DCM Communication Stop Mode

Either of the following is met:

  • Communication stop for "Head Up Display" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Head Up Display" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Head Up Display" is 6 or more.)

Headup Display Communication Stop Mode

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Headup Display Communication Stop Mode

Either of the following is met:

  • Communication stop for "Front Radar" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Front Radar" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Front Radar" is 6 or more.)

Millimeter Wave Radar Sensor Communication Stop Mode

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Millimeter Wave Radar Sensor Communication Stop Mode

Either of the following is met:

  • Communication stop for "Occupant Detection" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Occupant Detection" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Occupant Detection" is 6 or more.)

Restraints Occupant Classification System Module Communication Stop Mode

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Restraints Occupant Classification System Module Communication Stop Mode 2020 - 2022 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Restraints Occupant Classification System Module Communication Stop Mode

Either of the following is met:

  • Communication stop for "Front Camera Module" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Front Camera Module" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Front Camera Module" is 6 or more.)

Front Camera Module Communication Stop Mode

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): Front Camera Module Communication Stop Mode

DTC Combination Table

Symptom

Suspected Area

Link

Although CAN communication is currently normal, an ECU connected to the CAN communication system has CAN communication DTCs.

The probable part for which communication is interrupted can be determined using DTC Combination Table and comparing the DTCs output from ECUs connected to the CAN communication system.

2019 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 01/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DTC COMBINATION TABLE 2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DTC COMBINATION TABLE 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DTC COMBINATION TABLE 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DTC COMBINATION TABLE