All good advice. Stuff like this is crazy making.

Steve

 

Bump and comment. This is an excellent thread to read if you have a wiring fault message. RV tech has a very good process to follow if you are short on equipment and/or knowledge. I have been chasing the "wiring fault" for months. It went from a fault to a hard short. I had to go wheel to wheel to find it but with some help from a friend we found it in the rear axle. I'll attach a picture or two. But, had I listened to a couple folks on this thread and done a microscopic wire inspection I would have found it with a lot less trouble. There was just enough evidence where the wire from the left rear wheel goes into the axle toward the right rear that I should have seen it. Also, as I was working there I could smell the electric burn residue. Thanks to all who contributed to this.