How Power Door Locks Work
Sunday, November 11th, 2007Ever wonder how power door locks work? Cars can be locked and unlocked using keypads, keyless entry systems, conventional locks, and all these systems work similarly using body controllers, power-door-lock actuators and gears.
Ways to unlock a car include using a key, pressing the unlock button in the car, using the combination lock on the outside of the door, manually pulling the knob on the inside of the door, using a keyless remote control or by a signal from a control center. Some cars with power door locks have a switch that sends power to actuators to lock or unlock the door. More complicated systems have several methods of locking and unlocking the doors and are controlled by the body controller, which is a computer located in the car. (more…)