Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026NO9
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: SEAT BELT: SEAT BELT WARNING SYSTEM (for TMC Made): HOW TO PROCEED WITH TROUBLESHOOTING; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]

HOW TO PROCEED WITH TROUBLESHOOTING

CAUTION / NOTICE / HINT

HINT:

  • Use the following procedure to troubleshoot the seat belt warning system.
  • *: Use the GTS.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

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2.

CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer to confirm the problem.

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

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3.

PRE-CHECK

(a) Measure the auxiliary battery voltage.

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

NEXT

4.

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Using the GTS, check for CAN communication system DTCs.

for HV Model: Click here 2023 MY Corolla Corolla HV [09/2022 - 11/2022]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): DIAGNOSIS SYSTEM

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

Result

Proceed to

CAN DTCs are not output

A

CAN DTCs are output

B

B

GO TO CAN COMMUNICATION SYSTEM

for HV Model: Click here 2023 - 2025 MY Corolla Corolla HV [09/2022 -        ]; NETWORKING: CAN COMMUNICATION SYSTEM (for HV Model): HOW TO PROCEED WITH TROUBLESHOOTING

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

A

5.

CHECK COMMUNICATION FUNCTION OF CXPI COMMUNICATION SYSTEM*

(a) Using the GTS, check for CXPI communication system DTCs.

Body Electrical > Main Body > Trouble Codes

Result

Proceed to

CXPI communication system DTCs are not output

A

CXPI communication system DTCs are output

B

B

GO TO CXPI COMMUNICATION SYSTEM

A

6.

CHECK DTC OUTPUT (AIRBAG SYSTEM)*

(a) Clear the DTCs.

Body Electrical > SRS Airbag > Clear DTCs

(b) Check for DTCs.

Body Electrical > SRS Airbag > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B

B

GO TO AIRBAG SYSTEM

A

7.

CHECK COMBINATION METER ASSEMBLY

(a) Check the operation of the speedometer, shift indicator and brake warning light on the combination meter assembly.

OK:

The speedometer, shift indicator* and brake warning light on the combination meter assembly operate normally.

NG

GO TO METER / GAUGE SYSTEM

for 12.3 Inch Display: Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for 12.3 Inch Display): HOW TO PROCEED WITH TROUBLESHOOTING

except 12.3 Inch Display: Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (except 12.3 Inch Display): HOW TO PROCEED WITH TROUBLESHOOTING

OK

8.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SEAT BELT: SEAT BELT WARNING SYSTEM (for TMC Made): PROBLEM SYMPTOMS TABLE

Result

Proceed to

Fault is not listed in Problem Symptoms Table

A

Fault is listed in Problem Symptoms Table

B

B

GO TO STEP 10

A

9.

OVERALL ANALYSIS AND TROUBLESHOOTING*

(a) Data List / Active Test

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SEAT BELT: SEAT BELT WARNING SYSTEM (for TMC Made): DATA LIST / ACTIVE TEST

(b) Terminals of ECU

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SEAT BELT: SEAT BELT WARNING SYSTEM (for TMC Made): TERMINALS OF ECU

(c) On-vehicle Inspection

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SEAT BELT: SEAT BELT WARNING SYSTEM (for TMC Made): ON-VEHICLE INSPECTION

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10.

REPAIR OR REPLACE

NEXT

11.

CONFIRMATION TEST

NEXT

END