I started out with having just issues with my third brake light not working. When I was working on replacing them a ping went off, and the other two brake lights stopped working and now my truck won't shift into gear. The truck turns on and runs fine, I can even drive it with manually clicking the little lever behind the wheel to get the truck into gear. I have replaced the brake switch, checked all my fuses and I still can't figure out where the problem lies. Mechanic can't figure it out and I cant find the answer on YouTube. What's next?