Door Courtesy Switch Circuit On Driver Side Door

DOOR COURTESY SWITCH CIRCUIT ON DRIVER SIDE DOOR

CIRCUIT DESCRIPTION

The door courtesy lamp turns on when the door is opened and turns off when the door is closed.

The driver door ECU detects the condition of the door courtesy switch and sends a signal to each ECU via the multiplex communication circuit.

Wiring Diagram:

Step 1-2:

Step 3:

INSPECTION PROCEDURE