Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026NOF
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 - 11/2022]
Title: SEAT BELT: SEAT BELT WARNING SYSTEM (for TMC Made): Driver Side Seat Belt Warning Light does not Operate; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]

Driver Side Seat Belt Warning Light does not Operate

DESCRIPTION

The airbag sensor assembly blinks or turns off the seat belt warning light on the combination meter assembly in accordance with the state of the front seat inner belt assembly LH.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  • When replacing the combination meter assembly, update the ECU security key.

    Click here 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 -        ]; SETUP: WHEN REPLACING OR REMOVING/INSTALLING PARTS: UPDATE ECU SECURITY KEY

HINT:

  • The seat belt warning light on the combination meter assembly is used for both the driver seat and front passenger seat. Check that the operation of the seat belt warning light is normal first.

    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

  • If the seat belt warning light does not operate for both the driver seat and front passenger seat, replace the combination meter assembly.

    Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; METER / GAUGE / DISPLAY: COMBINATION METER: REMOVAL

PROCEDURE

1.

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

2.

READ VALUE USING GTS

(a) Read the Data List according to the display on the GTS.

Body Electrical > SRS Airbag > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Left side Buckle SW

LH buckle switch

Unset, Set or NG

Unset: Seat belt not fastened

Set: Seat belt fastened

NG: Data is not determined

-

Body Electrical > SRS Airbag > Data List

Tester Display

Left side Buckle SW

Result

Proceed to

Unset or Set is displayed on the GTS according to the driver seat belt condition

A

Unset or Set is not displayed correctly on the GTS according to the driver seat belt condition

B

NG is displayed on the GTS

C

A

USE SIMULATION METHOD TO CHECK

B

REPLACE FRONT SEAT INNER BELT ASSEMBLY LH

C

REPLACE AIRBAG SENSOR ASSEMBLY