98 venture door bounce back open

I reset the computer numerous time, I clean the contacts on the sliding door and I am still getting the same problem. the problem is when I automatically close the power sliding door, it closes all the way and It sound like it was going to lock and then it just unlock and open back up. and advice will be greatly appreciated. thanks

My 1997 did the same thing, and I did the same things you did to try and find out what was causing it. It stopped working a short time later, and I being frustrated about it, eventually gave up on it, so now we have been opening and closing the door manually. I'd be interested in finding out how someone fixed the problem. The dealer wasn't much help because they couldn't re-create the problem. Ours did it sporadically and was unpredictable. Their response was, "Next time it happens bring it on down and we'll look at it." Well of course the next two times it did do that, we went to the dealer and the door worked fine for them. Go figure.

anymore ideas, anything would be appreciated