MK2 Horn

[Mk2_phil]

Hi.

I know it might seem like a mundane issue but I really am stuck!

I have checked the ign live to the horns terminals under the bonnet. Multimeter says ok.
I have cleaned the earth next to the UJ cleaned one near the 13mm bolt and also the multimeter reads resistance at both ends.
I have checked the fuse and multimeter says ok.
I checked the relay (due to no clicking) and changed it. And that still doesn't click. However the wiring to the back of the relay has suitable readings.
The wiring behind the steering wheel seems inconclusive to me, I can't get a reading from some of the connections, but not from the brown/pale blue wire that goes to the relay. However, with the ignition on, if I put a shielded screwdriver down the connections at the steering wheel end I can get the indicator relay to click and (inconsistently) what I believe the horn relay to be, to click as well!

I have tried another steering wheel and no joy.

I'm stumped, is there another earth in the steering column i'm missing, or did I buy a dodgy replacement relay, or what? haha

Cheers Guys.

[Nate]

erm, have you tried removing your horn (ouch!) and shoving 12v up it? remember looking at clairebear's rocco years back when the horn packed up. turned out the trumpet on it was stuffed full of mud. dropped it on the floor a few times and the mud fell out, all good :)

[Mk2_phil]

I've connect one of the horns directly to the battery and it works but I could whip it out and take a look at the second one :)

[Mk2_phil]

This issue is now resolved

Many thanks for the contribution. Just in case this happens to anyone else, it was a combination of dodgy steering horn wiring and a blown fuse. (Fuse 18. which is the fuse for the horn relay / cruise control / throttle switch / coolant level & temperature warning light) - I DIDNT KNOW THE RELAY NEEDED ITS OWN FUSE! as fuse no.16 is already fused as the horn. Ah well!

Just to clarify, here's a handy diagram I found on VWVortex forum. :)