SEAT BELT: SEAT BELT WARNING SYSTEM (w/ Occupant Classification System): Driver Side Seat Belt Warning Light does not Operate; 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022

Last Modified: 08-23-2025	6.11:8.1.0	Doc ID: RM1000000028LV6
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [11/2022 - ]
Title: SEAT BELT: SEAT BELT WARNING SYSTEM (w/ Occupant Classification System): Driver Side Seat Belt Warning Light does not Operate; 2023 - 2026 MY Corolla Corolla Hatchback Corolla HV GR Corolla [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.
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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.
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If the seat belt warning light does not operate for both the driver seat and front passenger seat, replace the combination meter assembly.
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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

GO TO AIRBAG SYSTEM

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

Driver Seat Buckle Switch Status

Driver side buckle switch

Unknown, Unbuckle, Buckle or Malfunction

Unknown: Data is not determined

Unbuckle: Driver side seat belt unbuckle

Buckle: Driver side seat belt buckle

Malfunction: Driver side seat belt buckle circuit malfunction

Body Electrical > SRS Airbag > Data List

Tester Display
Driver Seat Buckle Switch Status

Result	Proceed to
Unbuckle or Buckle is displayed on the GTS according to the driver seat belt condition	A
Unbuckle or Buckle is not displayed correctly on the GTS according to the driver seat belt condition	B
Malfunction is displayed on the GTS	C

USE SIMULATION METHOD TO CHECK

REPLACE FRONT SEAT INNER BELT ASSEMBLY LH

REPLACE AIRBAG SENSOR ASSEMBLY