Setsuna F Seiei

I had an aftermarket door lock installed at a shop approx. 2 yrs ago and a couple days back I noticed that I couldn't get my key to lock the door (I COULDN'T TURN THE KEY IN THE KEYHOLE TO THE LOCK POSITION). No biggie I figured I'll just use the alarm remote to lock the doors since the aftermarket door actuators are programmed to lock with the alarm engaged and vice-versa. It is also programmed to lock after I put the keys in ignition and start the car. It unlocks as soon as I turn off the car.
The problem is that every time I turn the car off and the actuator unlocks, I hear a grinding noise and I can feel the vibration when I put my hand against the door panel. AGAIN THIS ONLY HAPPENS WHEN I TURN THE CAR OFF. It doesn't happen in other cases when I use the alarm remote to unlock the door when the car is off. IT ONLY HAPPENS AS SOON AS I REMOVE MY KEY AND TURN OFF THE CAR. what could the problem be?

john666

take off the door panel and maybe you can hear or see what the problem is

Setsuna F Seiei

i am, just wanting to make sure ahead of time

john666

probably is the actuator but seeing is believing.
ps its real easy to put power locks into a car

Setsuna F Seiei

a set of door locks cost me 20 bucks each and I was going to install it myself but they offered to install it for additional 25 since I know the owner's daughter