horn problem

[rowdy12]

sitting in the driveway my horn works but when i start the engine or drive it wont work where do i go from here, also tried changing relay and as long as i dont want to turn key it works but it wont work again until i take the key out if i turn it ???

[stockies]

I think you have a faulty ground. My horn did the same thing as soon as i put on a smaller wheel and boss kit. Could never figure it out, so took it to the auto sparky, and all they did was run a new ground to the metal part under the dash (near the fuses) and charged me $120.

When its daylight, i might take the covers off the steering coloum and check.

[stockies]

Ok, so gay. Now my horn is not bloody working. All the wiring looks fine, and it's not the horn button, or the relay or the fuse. Now i'll have to go and find my multimeter.

anyway, here's the pics I said i'd get.

The thick black wire is the one they put in. (photo 1) and it's earthed to the blue ring connector (photo 2)

[TVR-190]

ill get pics tomorrow, i assume its an aftermarket wheel

[stockies]

Found my problem. Over time the brass contact that connects to the brass ring on the boss kit has worn away. Now to find a way to replace it. Or just push the top of the wheel forward so it makes contact. Ah dodgy fixes....