How Does A 2 Wire Door Lock Actuator Work

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.

How does a 2 wire door lock actuator work.

To lock or unlock the vehicle polarity is changed on one motor leg via a positive pulse from a switch alarm keyless entry etc. Here is an easy 5 wire setup for anyone to use in any vehicle without the use of any relays. Symptoms of a failing door lock actuator. Solenoid and dc motor.

Power door locks do not function. Each door has its own actuator. Door locks actuators reverse polarity positive switch trigger type d. The actuator runs off 12 volts.

The 2 wires named battery red wire after the fuse to positive 12 vdc and the black to ground or minus battery pin. When power is applied the actuator flips in one direction. How power door locks work. Door lock actuators are made in two styles.

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. Car door lock actuators are designed to lock and unlock a door without the effort of pulling on a cable and rod. How to wire automotive spdt relays. How a door lock actuator works.

Both motor legs rest at ground at the relays. Another symptom of a potential problem with the power door lock actuators are door locks that 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. When mounted in the car it is vertical so the hook can move up or down.

I want to use an arduino to activate a two wire actuator automobile power door lock mechanism. This actuator can move the metal hook shown in this photo to the left or right. On a vehicle with electric locks the process is a bit different. On manual locks the locking function operates by pushing or pulling on the door lock.

In some cars the door lock actuator is positioned below the latch. This manipulates a series of rods that slide back and forth opening and closing the locking mechanism at the door latch. If you reverse the polarity on the actuator and apply power it flips in the other direction.