The horn does not have a fuse and the dome light has nothing to do with the horn circuit. The horn has a relay under the hood that is energized by a ground wire to the steering column/horn ring. ....http://www.trifive.com/garage/56%20Chevy%20Assembly%20Manual/12-17.gif ... Temporiarly short the tan wire on the relay to ground and see if the horn blows or the relay clicks. Report your findings.Does any one knows where the fuse box for 1956 4 door sedan is located,my horn stop working,I put a new headliner in maybe the dome light short it out.
The blinkers do not have a fuse. The flasher acts as a fuse for them. The flasher opens when the load of the light bulbs is on the flasher. If there is a short the flasher opens and stays open to protect the wiring.Hey everyone, can someone tell me which fuse is the right one for the blinkers in a 57 chevy please? I have all other lights but absolutely no blinkers!!