Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM100000001HSIE
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [03/2019 - 11/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): HOW TO PROCEED WITH TROUBLESHOOTING; 2020 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 11/2022]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the airbag system.
  • *: Use the Techstream.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

CUSTOMER PROBLEM ANALYSIS

(a) Confirm problem symptoms.

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

NEXT

3.

CHECK CAN COMMUNICATION SYSTEM*

(a) Using the Techstream, check if the CAN communication system is functioning normally.

OK:

CAN communication system is functioning normally.

HINT:

  • Refer to Communication Bus Check in CAN Communication System.

    Click here 2020 MY Corolla Corolla Hatchback GR Corolla [03/2019 - 09/2019]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): DIAGNOSIS SYSTEM 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model except TMC Made): DIAGNOSIS SYSTEM

  • The airbag sensor assembly is connected to the CAN communication system. Therefore, before starting troubleshooting, make sure to check that there are no malfunctions in the CAN communication system.
NG

GO TO CAN COMMUNICATION SYSTEM 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model): HOW TO PROCEED WITH TROUBLESHOOTING 2023 MY Corolla Corolla Hatchback GR Corolla [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for Gasoline Model except TMC Made): HOW TO PROCEED WITH TROUBLESHOOTING

OK

4.

SRS WARNING LIGHT CHECK

(a) Proceed to Operation Check.

Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 04/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): OPERATION CHECK 2021 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): OPERATION CHECK

NEXT

5.

CHECK FOR DTC*

(a) Proceed to DTC Check / Clear.

Click here 2020 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): DTC CHECK / CLEAR

OK:

DTCs are not output.

NG

GO TO STEP 12

OK

6.

SYMPTOM SIMULATION

(a) Proceed to How to Proceed with Troubleshooting.

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; INTRODUCTION: HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS: HOW TO PROCEED WITH TROUBLESHOOTING

NEXT

7.

PROBLEM SYMPTOMS TABLE

(a) Proceed to Problem Symptoms Table.

Click here 2020 - 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): PROBLEM SYMPTOMS TABLE

NEXT

8.

CIRCUIT INSPECTION*
NEXT

9.

IDENTIFICATION OF PROBLEM
NEXT

10.

REPAIR OR REPLACEMENT
NEXT

11.

CONFIRMATION TEST
NEXT

END

12.

DIAGNOSTIC TROUBLE CODE CHART

(a) Proceed to Diagnostic Trouble Code Chart.

Click here 2020 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 04/2020]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): DIAGNOSTIC TROUBLE CODE CHART 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [04/2020 - 06/2021]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): DIAGNOSTIC TROUBLE CODE CHART 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): DIAGNOSTIC TROUBLE CODE CHART 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): DIAGNOSTIC TROUBLE CODE CHART

NEXT

13.

CIRCUIT INSPECTION*
NEXT

14.

IDENTIFICATION OF PROBLEM
NEXT

15.

REPAIR OR REPLACEMENT
NEXT

16.

CONFIRMATION TEST
NEXT

END