I have thought about that, but the shop that replaced the door lock actuator also took the door apart and when they reassembled it, the window still didn't work. What are the chances of two separate parties taking the door apart and not putting it back together correctly? I just don't know anymore...

I will try to pull the door panel off one more time over the holidays and check the voltage. After that, I give up.

If you disconnected something when you were in there it is possible that the guy at the shop didn't know it was supposed to be connected. It is worth a shot anyway before you take it to the dealership!

Since you've added the KP Tech and this issues started, it's definitely the addition of the module that caused the problem, though it'll be hard to tell exactly at what point in the electrical circuit the issues starts. GL

I actually had te KP module installed a couple of years ago. So, I don't think that is it.