I came back from work today and locked my car remotely and everything was okay. After about couple of hours when I was going out with my wife, I could unlock driver side door remotely, but not the other doors. I tried with keyfob, with central locking button on the drivers side door, but nothing. Now not even driver side door will work and I have to lock my car manually.

When I try to lock/unlock my car remotely, everything looks like it is working, I do hear a beep, do see tail lights flashing, alarm is activated, but doors are not actually locked/unlocked.

Does that sound like the pump or is it anything else? Thank you.

 

It's the pump. try to find one in a junk yard. I did. It only cost $4 because the guys didn't know what it was.