Lock Cylinder Switch: Description and Operation

Door Open Detection Switch
The door open detection switch is built in the door lock assembly.
If is on when the door is open and off when the door is closed.

Door Unlock Detection Switch
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 in this circuit. It is used as one of the operating conditions for the key confinement prevention function.

Door Key Lock and Unlock Switch
The door key lock and unlock switch is built in the door key cylinder. When the key is turned to the lock side, terminal 1 of the switch is grounded and when the key is turned to the unlock side, terminal 2 of the switch is grounded.


Door Unlock Detection Switch
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.


Luggage Compartment Door Key
The luggage compartment door key operated switch goes on when the luggage compartment door key cylinder is turned to the unlock side with the key.