Problem: While driving, my door lock started to lock and unlock itself. It is safe to say that it occurs whenever the car bounce...as in going over a small bump, a sewer cover...etc.

My first guess is that there is a short somewhere along the line of the power door lock. I thought about the fuse, but if the fuse was blown, the lock would not even work at all. I don't even know where to start looking. Any suggestion from you guys would be helpful.

 

Do you have an alarm?

 

It's probably a faulty door lock actuator. They commonly cycle when they go bad.

 

Correct me if I'm wrong, but we have 2 door actuator? If one is faulty, it wouldn't affect the other, correct?

I can probably narrow it to the actuator that way. I will find out today.

Yes I do

 

Each door lock has its own actuator.