Can someone please, for the record, state exactly which model years do not have door lock timers?

My stupid door locks have been opening up by themselves and I can't seem to find the timer. What could be causing it? Is there any way to disable the locks from opening by themselves?

I have been beating this question for a while since it has been driving me nuts. I can't seem to find the solution. Please if there is another 1991 owners who had door lock problems and fixed them, please email me.

Thanks.

 

89 and 90, possibly 91 also.

 

About a month ago when I was working on my car my door locks actually reversed their operation. In other words every single time I locked the doors they would unlock immediatly by themselves. I was going to a movie so I didn't have much time to figure out how to get the doors locked. Every time we got all of the doors locked and closed the door they would unlock again. I tried just about everything I could think of, unlocking the doors with the key, locking the doors with the key, starting the car again. Nothing worked until I finally entered in the combination on the keypad which somehow reset the locks to work normally. Don't know if this is the problem you might be having though.

 

Unfortunately, I have an 91 SE, which does not have the keypad.

I have someone who wants to buy the car, but he does not like the fact that the door locks are malfunctioning.