Join Date: Jan 2006
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Hi there and welcome to Renault Forums, as far as I am aware there is only one fuse for the brake lights and if one is working then the fuse should be okay. It could be corrosion in the wiring strips on the faulty one or moisture. To check this you would have to look inside the actual unit and get rid of any of the above or you could try giving it a good squirt of WD40. I'm sure you will receive further advice soon.
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Currently in leroy's garage:
2000W Renault Laguna Monaco 2.0L. F4R