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Hi all!
Thanks for all the info. I've the exact same problem. Horn only working with the key out of the ignition etc.
I'm a bit confused by all the info on here.
Rustycrats has put up some very useful drawings here and as always is a mind of information. I'm just wondering though what my course of action should be.
Do I as suggested earlier put a wire from the steering column to the body to create a new earth or go and chase the bad earth?
From my understanding the bad earth for the horn is in the wing?
Is that even accessible? Or have I picked up that drawing wrong?
Any further information would be gratefully received and I promise to put up pictures of any fix I do sort out.
Cheers.
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Rabbit73 gave a good solution. Wiring the steering column to the body is a poor solution that may create other problems. For me a good solution was a bit of copper jammed into the gap in the joint of the steering column inside the engine compartment.
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[Image: 177657.png] 2004 1.9D DW8 WJY with black spray paint on wheels instead of flimsy plastic wheel covers.
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07-12-2014, 02:18 PM
(This post was last modified: 07-12-2014, 02:25 PM by Patman99.)
Took my Berlingo in for a fuel filter change and, as I have the problem with my horn, spoke to the mechanic. He told me that he has so far had 100% success by removing the earth lead from the back of the horn and replacing it with another one that goes directly to earth (rather than via a return loop back up through the stearing wheel).
This does require removing the front bumper, but will solve the issue permanently.
Incidentaly, he had done one just a month back, so was quite familiar with the issue.
He told me that the reason that the horn works with the key out is that the current uses another part of the ignition as a ground rather than grounding via the long loop back to the inner wing ground point. Once the key is in, the wire taking the ground becomes live and therefore the path to ground is broken.
The workshop I used was the Essex Fire service Workshop, so they are extremely knowledgable about vehicles and common faults.
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The bad earth is behind the air bag in the steering wheel the earth need's to be re connected air bag off job there are some thread's on it
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Both methods work, but in different ways.
The bumper-off job allows you to bypass around 3 metres of the earth loop by simply taking the earth straight to the chassis.
Less likely to fail again in the future as well.
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What is the bumper off method?
Do you have to run a new wire from the wheel down to a new earth?
Cheers for your help.
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Hi Arthur i have heard of this mod before but its always good to put out there again.
You should go to the introductions section and say hi to everyone.
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