How Does A 2 Wire Door Lock Actuator Work

This actuator can move the metal hook shown in this photo to the left or right.

How does a 2 wire door lock actuator work.

Symptoms of a failing door lock actuator. Each door has its own actuator. This manipulates a series of rods that slide back and forth opening and closing the locking mechanism at the door latch. Both motor legs rest at ground at the relays.

When power is applied the actuator flips in one direction. Another symptom of a potential problem with the power door lock actuators are door locks that behave erratically. On manual locks the locking function operates by pushing or pulling on the door lock. To lock or unlock the vehicle polarity is changed on one motor leg via a positive pulse from a switch alarm keyless entry etc.

I want to use an arduino to activate a two wire actuator automobile power door lock mechanism. It mimics your motions when you pull the knob up or push it down. Here is an easy 5 wire setup for anyone to use in any vehicle without the use of any relays. How to wire automotive spdt relays.

Power door locks do not function. How a door lock actuator works. If the actuators have any sort of internal or wiring issue it may cause them to rapidly lock and unlock unexpectedly or cause them to function intermittently. On a vehicle with electric locks the process is a bit different.

How power door locks work. The actuator runs off 12 volts. When mounted in the car it is vertical so the hook can move up or down. Solenoid and dc motor.

Power door locks behave erratically. Be aware this product will draw 8 ma of current 24 7 or 5 8 amp hours per month out of your battery in addition the energy to open close the lock as many times you do that each day or week. Door lock actuators are made in two styles. In some cars the door lock actuator is positioned below the latch.

If the door lock actuator doesn t work with any method then the problem can be the door lock actuator itself the wiring or the control module. A rod connects the actuator to the latch and another rod connects the latch to the knob that sticks up out of the top of the door. If you reverse the polarity on the actuator and apply power it flips in the other direction.