VCCA Home Forums Thread Like Summary - 1931 Independence Horn

Horn blows with the slightest turn of the steering wheel. Assume it's a frayed wire in the column?

horn button works via completing ground....

horn has hot (positive) direct from wiring harness
chassis is ground on car so most all metal is ground

the ground wire from horn runs up steering column and connects to bushing brass ring. when you press horn it pushes the s-wire down and contacts the brass ring and the cup therefore completing circuit / ground meaning horn blows

the cap is not required to make horn work. but it keeps s-wire from coming out of rubber. you can use a wire hanger and stick it in one of the cup holes and touch brass ring and cup/ metal making horn blow. this is how i tested bushing on the 1931, with a meter for continuity

when i was working on the 1931 if you brush the ground wire against anything metal horns goes off, you pee your pants.

seen some replace the horn with a push button on the dash... and reroute wires.

When you do decide to fix it correctly, one possibility is to disconnect the wire that runs up the steering column from the horn, remove the terminal, and slide a long piece of heat-shrink tubing over the wire and right up the steering column to the bushing to insulate the wire from the steering shaft and the housing. Then reterminate the wire and reattach to the horn.

All the Best.

Chip