How Does Power Door Locks Work?
Power locks or electric locks allow the doors of a vehicle to be locked or unlocked automatically. A keyless entry remote control using a key fob can enable a user to activate the door locks from a short range outside the vehicle. The basic system components include: lock actuator, switches, wiring and a circuit breaker. Voltage is sent to the actuator by using a control switch which is connected to the 12 volt power source of the car through a circuit breaker.There are only a few main components of a power door lock system. Inside the car door, approximately behind the exterior door handle, is a metal latch that is the actual component that keeps the car door shut. A metal rod protruding from the bottom of the latch is connected to an actuator, which is a small motor that moves the latch up and down. Another metal rod protruding from the top of the latch is connected to the door lock button that sticks up at the top of the door. The exterior door handle is connected to a metal rod ins...