The locks will work for about a day with a 15 amp fuse, and then I’ll just notice they no longer work. When I pull the fuse, it looks like a fire cracker went off inside- all black. So I took the door panel off to see if maybe a wire was exposed, but I couldn’t see anything. I removed the 20 amp fuse for now after seeing these posts, but it’s been working for a good week now without a problem.