aussie

Date posted: 9/03/2006 8:55 pm  Subject: Horn wiring

I probably should know this, but have had a mental block! I've removed a sports steering wheel fitted to my car (suzuki swift) because it was missing the horn button in the centre. The previous owner had re-routed the horn to a button on the dashboard. I want to refit the original type steering wheel with the horn in the centre.

I have traced the power wire from the dash board switch to a bundle of wires attached to the back of the windscreen wiper/indicator circuit block located on the steering column, from which it appeared to have been disconnected. When I touch this wire to a copper plate within the circuit block, the horn sounds. Question is - where should this wire be connected?

I can't see any obvious terminal from where it might have been unsoldered and disconnected. From my recollection of auto electrical theory, the wire would have to be connected to a point at which it could only be earthed when the horn button was depressed thus completing the circuit. This wire has to go somewhere. It has me baffled. Can anyone help?

 

scherzo

Date posted: 3/29/2007 11:24 am  Subject: horn

Hi, Go to a junk yard and buy the stock steering wheel. Below the steering wheel is a stationary terninal to connect the wire. There will also be a spring loaded projecting copper "brush" that rides on a circular track on the underside or the steering wheel. This conducts current from the stationary terninal, to the rotating steering wheel without "winding up" the wire and breaking it. When the horn button is pressed the circuit is completed to ground, or earth, at the steering wheel hub. Beep.