1981 C10 truck horn

[kgross401]

My horns are new and tested them before installing to truck they worked, now that they are wired up to truck wire harness to steering wheel it does not work is there a fuse for horn because my fuse block label are wore off I also replace horn relay note i also grounded new horn to truck and ground is good any other suggestions would be grateful thanks

[Chevygold]

I had a problem with my horn and it turned out to be one of the terminals in the relay socket was loose and wasn't making contact, I think the tang that locks it into the socket needed to be bent a little to grip the socket and keep it in place, that took a bit of finding!
Graham

[kgross401]

ok thanks will pull relay and check terminals