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		The Light leveller is a great idea which I used often, when it was working, but it's not made to withstand the punishment it cops off road. It eventually fills up with crud and dies. It's a sealed unit and while I wouldn't say it's impossible to fix it would be a mighty effort. Personally; I don't think it's worth replacing. Just unplug it and leave dormant in situ. It has to be there for manual adjustment. 
 
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		I have the Traxcide kit on my 2011 2.4 Puma and don’t have any issues with the Light leveller switch. Maybe post a picture of your wiring to ensure it is correct