Front Passenger Side Seat Belt Warning Light Malfunction

Front Passenger Side Seat Belt Warning Light Malfunction

DESCRIPTION
The occupant classification ECU detects the state of the front seat inner belt assembly (passenger side) when the front passenger seat is occupied with the ignition switch ON. If the front passenger seat belt is not fastened, the front seat belt warning light on the A/C control assembly blinks. If the front passenger seat belt is fastened, the warning light goes off.

HINT: The center airbag sensor assembly uses the front passenger buckle switch signal to control the airbag operation. If there is a communication error between the occupant classification ECU and center airbag sensor assembly, the airbag warning light comes on.

Wiring Diagram:

INSPECTION PROCEDURE

HINT: If there is an open in the passenger side buckle switch circuit (front seat inner belt assembly circuit), the occupant classification ECU outputs DTCs. Perform troubleshooting with the "Occupant Classification System".

Step 1-3:

Step 3(Continued)-5:

Step 5(Continued)-6: