Door Sensor/Switch (For Alarm): Description and Operation

Door Courtesy Switch Circuit
The door courtesy switch goes ON when the door is opened and goes OFF when the door is closed.



Door Unlock Detection Switch Circuit
The door unlock detection switch is built in the door lock motor assembly. This switch is ON when the door lock knob is in the unlock position and OFF when the lock knob is in the lock position. The ECU detects the door lock knob conditions from this circuit. It is used as one of the operating conditions for the key confinement prevention function.