Driver Side Seat Belt Warning Light Does Not Operate

SEAT BELT: SEAT BELT WARNING SYSTEM: Driver Side Seat Belt Warning Light does not Operate
- Driver Side Seat Belt Warning Light does not Operate

DESCRIPTION

When the ignition switch is turned ON, the center airbag sensor transmits front seat inner belt LH state signals to the main body ECU, and then the main body ECU sends signals to the combination meter through the CAN. If the driver side seat belt is not fastened, the combination meter blinks the driver side seat belt warning light. If the seat belt is fastened, the warning light goes off.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
The seat belt warning system uses the CAN communication system. First, confirm that there is no malfunction in the CAN communication system. Refer to the How to Proceed with Troubleshooting procedure Initial Inspection and Diagnostic Overview.

PROCEDURE

1. CHECK FOR DTC (AIRBAG SYSTEM)

(a) Clear the DTCs Reading and Clearing Diagnostic Trouble Codes.

(b) Check for DTCs Reading and Clearing Diagnostic Trouble Codes.

Result





B -- GO TO AIRBAG SYSTEM Airbag System
A -- Continue to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (DRIVER SIDE SEAT BELT WARNING LIGHT)

(a) Operate the Techstream according to the display and select Active Test Scan Tool Testing and Procedures.

Combination Meter





OK:

Driver side seat belt warning light condition can be switched by Active Test.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal
OK -- Continue to next step.

3. REPLACE CENTER AIRBAG SENSOR ASSEMBLY

(a) Temporarily replace the center airbag sensor with a new one Removal.

NEXT -- Continue to next step.

4. CHECK DRIVER SIDE SEAT BELT WARNING LIGHT

(a) Check the driver side seat belt warning light function Component Tests and General Diagnostics.

OK:

Driver side seat belt warning light operates normally.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal

OK -- END (CENTER AIRBAG SENSOR IS DEFECTIVE)