Need to find the horn relay for my '03 Clio... Diagram or photo would be helpful. Not sure where the relays are for my model? Thanks
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Thanks Graham.. Yep I've got 12v at the horn when I press the steering wheel either side, so I know the supply is ok. The horn works when removed and tested.. I thought it was a bad earth where it bolts to the chassis so I cleaned it up and refitted. Seemed ok but stopped working again? Thought the horn would have it's own relay but wasn't sure where it would be. Hence the post 
Back to the drawing board I suppose. I might fabricate an earth wire to run from the negative bolt on the horn itself, to a better earth location on the chassis?
Back to the drawing board I suppose. I might fabricate an earth wire to run from the negative bolt on the horn itself, to a better earth location on the chassis?
Thanks Graham, I'll give it another good clean for now, put some copper slip on the earth bolt as you suggest and take it from there.. If it still plays up, I'll replace the whole unit.
All sorted.. 2x ring terminals and 1 metre of insulated wire. Removed horn & placed one ring terminal over the earth bolt and refitted the horn. Pulled the other end of the wire (with ring terminal) up through to the engine bay and secured it to a good clean chassis earth bolt next to the fuse box. I now have good hornage lol..The horns are pretty terrible on these. I'd make sure the earth contact is really clean and put some copper slip on the contact and bolt to make sure it doesn't corrode and the connection is good.
Maybe the horn is temperamental. They're fairly cheap to replace
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