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Everything else is working on mine so I will have to bite the bullet and buy a new unit thanks for your help

The same thing has happened two me today with my 04 Sharan 2 inch of water I have dryed the footwell and taken the pdc out and dryed that as well I thought I may get some power back even if it was the orange light on the dash but nothing I have looked for a fuse but can't find one can somone please post a reply to help me and cams33 I don't want to purchase a new unit if it is just a fuse