You should see the voltage polarity toggle with each switch activation.
How to know if door lock actuator is bad.
Power door lock doesn t work a single bad door lock actuator can prevent one of your car s power door locks from working.
If the door lock actuators fail they will disable the power door lock feature from working.
Diy bri shows you how to repair a door lock actuator without a complete replacement.
This will require the driver to use the key to lock or unlock the doors and can disable the power door.
With that in mind the most common symptoms of a faulty door lock actuator include.
Unplug the door lock actuator electrical connector.
Often adjusting the temperature settings ever so slightly can stop the noise temporarily.
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.
When you change the temp setting in your car or truck normally you will typically hear the this noise for a few seconds.
This will require the driver to use the key to lock or unlock the doors and can disable the power door locks completely for vehicles that do not use a traditional key such as newer luxury vehicles.
This low cost method works great and can be done on many cars.
In some cars the door lock actuator is positioned below the latch.
You ll still be able to operate the lock manually but the power function will not work.
Car door lock actuators are designed to lock and unlock a door without the effort of pulling on a cable and rod.
Quick way to test the door actuator locking latching unit imo is to remove both door panels from the front and rear doors on the side in question.
If the door lock actuators fail they will disable the power door lock feature from working.
If it is the front door then attempt the lock unlock the door while you are real close to the unit to hear or feel if it is attempting to move but can t etc.
Then use your test light or digital meter to check for power and ground at the connector when you operate the lock unlock switch.
How to test door lock actuator if your car door does not lock or unlock with the remote or power button it is very.
