Diesel Data: Automotive Repair

Driver Buckle Switch Circuit

DRIVER BUCKLE SWITCH CIRCUIT

CIRCUIT DESCRIPTION
When the buckle switch of the driver's seat is ON with the ignition switch ON, the body ECU sends a signal to turn on the seat belt warning light for the driver's seat and to sound a buzzer.

When the buckle switch of the passenger seat is ON and the passenger seat belt occupant detecting sensor is ON with the ignition switch ON, the body ECU sends a signal to turn on the seat belt warning light for the passenger seat.

Wiring Diagram:






Step 1 - 2:




INSPECTION PROCEDURE