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International Automotive Technicians Network
Re: No power to one reverse light, how does this system work?
Posted to Technical Discussion Forum on 1/15/2018

The switches merely tell the controller to turn the lights on. If there is no scan data or codes for that light then the controller is kaput. Virtually every thing in that car is operated by a controller. It pays to have at least a Vag-Com scan device. Login to read more.