Corolla LE Sedan L4-1.8L (1ZZ-FE) (1999)
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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 Key Lock and Unlock Switch Circuit
he 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 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.
