I have a 1990 GXE, and the power door locks will not stay locked. When I lock my door wheather its by the key, the button inside, or the keyless entry pad, the doors will lock, then unlock themselves at random times. It does it a night, when i'm driving, and pretty much when ever it feels like it. After reading some posts I thought it might be the lock timer, but then I learned that my car doesnt have one... Do any of you know what might be causing this to happen? Ohh yeah the stock alarm system still works when the doors unlock themselves. If you just try to open the door without turning the key, it will go off.