My 67 camaro was modified by previous owners who removed the horn relay and the wires associated with the relay. I have a new relay, traced the wires for the horn and located the wire from the battery but the wire from the horn button is the mystery. I have looked in all the tech manuals and for some reason none seem to show the whole electrical diagram for the horm relay. Any help is appreciated. This is a super sport/ 350/350 setup
Thanks, Larry
chevy57L@yahoo.com

Without getting up out of my chair to look through my schematics, if you have a digital volt meter (or analog) you can figure it out pretty easy. Take resistance measurements between the buss bar on the relay and the other terminals. The button terminal will show some resistance (guessing a few hundred ohms). The other terminals will show open or a dead short to the buss bar.

I’ve left a couple of schematics up here; http://gvtc.com/~rlaa/Electrical/