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Daddys little soldier!
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If you have a Mk1 then your horn fuse is the same as your brake light fuse. If your brake lights work then it's probably not the fuse. But just in case you want to check anyway its a ten amp red one in the fuse box on the right hand wall of the drivers footwell. You need to get your head under there to see it. Torch in mouth type thing.
 

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Discussion Starter · #3 ·
It's a mk1 yes.

Brake lights all fine...

Joshua.
 

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Not sure if the MK1 is the same as the MK2, but here are the relevant pages scanned from the MK2 owner's manual:







I hope that helps anyway
 

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Discussion Starter · #5 ·
Any ideas as to what's the fault here?

Brake lights are fine so can't be the fuse!

Joshua.
 

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Daddys little soldier!
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You say that you have tested the horns. I assume you have live tested them on a battery?

Have you checked the earth. They are notorious for getting dirty and not earthing the system properly. Find them and give them a clean up. There isn't much else in the system to be honest. You could find the relay and check continuity between the steering wheel and the relay then onwards to the connectors at the horn. If you have access to another relay you could swap it over to discount that.

There you go. Hope that helps some. I'd start with the earth connections though.
 

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Discussion Starter · #7 ·
I've found the exact problem....

There's a little stick that poke out from behind the steering wheel, on a spring, and it's supposed to continuously rub on a brass plate on the back of the steering wheel.

These are not making contact.

The steering wheel is fully on and the little 'stick' thing is popped out as far as it will go???

Argh help someone asap, I've got it in bits atm!!

Joshua.
 
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