Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001GVZI
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 04/2020]
Title: NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): PROBLEM SYMPTOMS TABLE; 2020 MY Corolla Corolla HV [01/2019 - 04/2020]

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 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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 "Hybrid Vehicle Control" is indicated on the "Communication Bus Check" screen of the Techstream.
  • Communication stop history for "Hybrid Vehicle Control" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Hybrid Vehicle Control" is 6 or more.)

Hybrid Vehicle Control ECU Communication Stop Mode

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Hybrid Vehicle Control ECU Communication Stop Mode

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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): ECM 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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 Techstream.
  • Communication stop history for "Certification (Smart)" and/or "Power Management" is indicated on the "Communication Bus Check (Detail)" screen of the Techstream. (The Lost Communication Time value for "Certification (Smart)" and/or "Power Management" is 6 or more.)

Certification ECU Communication Stop Mode

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

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

Either of the following is met:

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

Electric Parking Brake ECU Communication Stop Mode

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Electric Parking Brake ECU 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DCM Communication Stop Mode

Either of the following is met:

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

Vehicle Approaching Sound ECU Communication Stop Mode

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Vehicle Approaching Sound ECU 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Millimeter Wave Radar Sensor Communication Stop Mode

Either of the following is met:

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

Motor Generator Control ECU Communication Stop Mode

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Motor Generator Control ECU 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

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

Either of the following is met:

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

Grille Shutter Communication Stop Mode

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): Grille Shutter 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

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV 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.

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DTC COMBINATION TABLE