Florian  Schäffer
About the article

New KW 1281 Interface


Cars made by the Volkswagen/Audi group (VAG) are easy to interface to using the OBD-2 connector: the VAG-COM software allows values to be read out from the car and parameters to be set. The communications protocol used is called KW 1281. Versions of VAG-COM up to 311 require the use of an isolated interface connected to the PC’s serial port to protect both the car’s computer systems and the PC itself from possible damage.
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