The car's fans do not start working and thus the vehicle overheats.

A door needed to be repaired and, after it was set back in its place, the open door signal worked any more nor the vehicle could be started.

The first failure in my car appeared from one day to the other. It was working perfectly one night, but the following morning it wouldn't start. There was some engine work but I could not start drivin… 

I replaced the fuse, checked the wiring going to switch seems to be power , but no horn, maybe just need to replace the horns,any advice welcome

Horn does not work. Fuse is good.

Horn not working when I push it