Seat Belt

Driver Side Seat Belt Warning Light does not Operate

~2min read
DESCRIPTION

When the ignition switch is ON, the center airbag sensor assembly transmits front seat inner belt status signals to the combination meter assembly through CAN. If the driver seat belt is not fastened, the combination meter assembly blinks the driver side seat belt warning light. If the seat belt is fastened, the warning light goes off.

WIRING DIAGRAM
CAUTION / NOTICE / HINT

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 (See page ).


PROCEDURE
  1. CHECK DTC OUTPUT (CAN COMMUNICATION SYSTEM)

(a) Clear the DTC (See page ).


(b) Recheck for DTCs.

Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO CAN COMMUNICATION SYSTEM

A
  1. CHECK DTC OUTPUT (AIRBAG SYSTEM)

(a) Clear the DTC (See page ).


(b) Recheck for DTCs.

Result

Proceed to

DTC is not output

A

DTC is output

B


B

GO TO AIRBAG SYSTEM

A
  1. PERFORM ACTIVE TEST 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 / Combination Meter / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

Combination Meter (Combination Meter Assembly)

Tester Display

Test Part

Control Range

Diagnostic Note

Driver Side Seat Belt

Driver side seat belt warning light

OFF or ON

Confirm that the vehicle stopped with the engine idling

OK:

The driver side seat belt warning light on the combination meter assembly operates normally.


OK

USE SIMULATION METHOD TO CHECK


NG

REPLACE COMBINATION METER ASSEMBLY

Test yourself

A quick Toyota Venza quiz: every answer comes with an explanation and a link to the manual page.