I was rudely awakened at 02:11 this morning to the soft and sweet sound of my horn going off!!! This isn't the 1st time it's happened, it went off a few weeks ago so I took the horn push out and it was silent again, for about half an hour :headvswal and then off it went again. This time I just left the fuse out and decided that it had to be the relay, had that checked and was told that it is fine. Put it back in again and the horn had been working as it's supposed to for the last couple of weeks until last night.

 

Could it be an intermittent fault with the relay or amI going to have to go chasing wiring?

I had this and all it was was one of the connectors shorting against the bodywork on the horn itself.

 

Re crimped it and it sorted all my problems out

I had a problrm in another car, my wire had worn and was earthing on the chasis, used to go off round right hand bends, lol

Was it raining last night if it was have a look here;

http://www.300zx.co.uk/forums/showthread.php?t=89882

If not don't bother!