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Thu Nov 06, 2008 3:12 pm

Horn goes off when I step an the brakes, and sometimes for no reason at all.
The Stock VW thing horn seems to be shot. I installed a 6 volt horn works great. Cleaned the contacts on the horn button all that looks good. I press the button horn works great. When i step on the brakes It goes off like mad and people think im crazy. Sometimes im just cruising and starts beeping without stepping on the brakes. Circuit is good, button is good, horn is good. Diving me nuts. Im guessing a bad ground.???????? Im gueesing it something simple just cant find it. Any help will be greatly appreciated.

Thanx,

Robert

Thu Nov 06, 2008 4:05 pm

An old friend of mine once owned a bus whose horn would beep in time with the turn signal. It was long ago, but I think it turned out to be a ground issue of some kind. There was a lot of crazy wiring in that bus.

IIRC, the horn gets a continuous 12v connection, and the wire going up through the column is the ground. Pushing the horn button grounds the circuit, and BEEP happens.

I'd go through your brake light circuit carefully and check all the connections and grounds.

Thu Nov 06, 2008 4:15 pm

Also the column could be to close to the steering wheel. Loosen the two bolts that hold the column to the body and slide it down. I left the Drive In after seeing Herbie and when ever I hit a bump in the road the headlights would dim, I had changed the column and had it to close to the wheel and would trip the dimmer switch. For a while I thought Herbie could be real.

Thu Nov 06, 2008 6:36 pm

It beeps when you hit the button it gets constant power, it grounds when hit the horn. definatley a Herbie moment

Thu Nov 06, 2008 6:43 pm

Might want to take the horn button and steering wheel off and check the wire
and brass contact washer.

Thu Nov 06, 2008 7:04 pm

I would check for a section of bare ground wire at or around the base of the steering column. I used to have a single cab that would honk honk only at the climax of a sharp right turn. It was a bare ground wire in the spot mentioned.

Fri Nov 07, 2008 7:02 am

The brake circuit and the horn circuit are sharing a ground somewhere. The ground wire for the horn, on the column may be touching a brake switch wire somewhere or, a brake switch wire may just be touching the whole column somewhere.

At any rate, concentrate your search around the steering column/brake master cylinder area.

Fri Nov 07, 2008 8:03 pm

Thanx guys ill check it out thanx weekend