I can get you a schematic of the Dome circuit, no problem. What I don't understand what you mean by having a short in your Dome circuit that is causing what not to start, your engine?" Typically in something like a dome or any lamp circuit attached to a fuse, if something sorts, you'll simply blow the fuse. A better description of the problem would help, I'll get ya what I can.
My Jeep is like my website ... I'm working on it.