I was trying to get my horn working and and seem to have a problem. I can physically press the horn button which actuates the relay I can see the relay move from one side to the other (78 skyark) My thoughts are the relay contacts are worn and do not make contact. Tried diffrent horns also. any thoughts :beer
I had the same problem with my 69, I ran a hot wire directly to the horn and it worked fine. turned out to be a broke wire. Have some one press the horn button while you checked for voltage, start at relay and work your way down to horn, Hope this helps