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

The combination meter assembly illuminates, 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.

HINT
The seat belt warning light on the combination meter assembly is used for both the driver seat and front passenger seat.

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 How To Proceed With Troubleshooting.

PROCEDURE

1. CHECK DTC OUTPUT (AIRBAG SYSTEM)

(a) Clear DTCs Built-in Type Yaw Rate Sensor.*1

(b) Clear DTCs Separate Type Yaw Rate Sensor.*2

(c) Recheck for DTCs Built-in Type Yaw Rate Sensor.*1

(d) Recheck for DTCs Separate Type Yaw Rate Sensor.*2

*1: for Built-in Type Yaw Rate Sensor

*2: for Separate Type Yaw Rate Sensor

Result:





B -- GO TO AIRBAG SYSTEM Built-in Type Yaw Rate Sensor

C -- GO TO AIRBAG SYSTEM Separate Type Yaw Rate Sensor
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / SRS Airbag / Data List.

(e) Read the Data List according to the display on the Techstream.

SRS Airbag (Airbag Sensor Assembly)





Result





B -- REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Removal

C -- REPLACE FRONT SEAT INNER BELT ASSEMBLY LH Removal

D -- REPLACE AIRBAG SENSOR ASSEMBLY Removal
A -- Continue to next step.

3. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

(a) Replace the main body ECU (multiplex network body ECU) Removal.

NEXT -- Continue to next step.

4. CHECK SEAT BELT WARNING LIGHT

(a) Check the operation of the seat belt warning light Component Tests and General Diagnostics.

OK:

The seat belt warning light operates normally.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal

OK -- END (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) WAS DEFECTIVE)