Designed to maximise the benefit of Roll Control Adjustable Sway Bars and be used in place of that hard to find O.E link.
Most commonly used to eliminate battery drain issues in Pre-2009 model Volkswagen cars when upgrading the radio to a later model such as the RNS510, RCD510 ,RCD330, RCD340 etc.
The Canbus Gateway Module, will require coding using software such as VCDS or OBDII.
Installation instructions: https://www.my-gti.com/2296/can-bus-gateway-removing-installing-and-upgrading-volkswagen-golf