At start up today a plume of white smoke came out where the signal arm is. Figured I fried a switch. Although nothing was on. It was right at start up. Started back up and everything still worked. All lights, etc...No more smoke. Went where I was going no problems. Can’t pull the steering wheel until tomorrow or Tuesday. Question is, with everything still working what else could have fried in there? And why at start up with no lights being used? I just realized I didn’t check the horn. But I wouldn’t think that draws enough to burn.