Fitment - About VAG-COMVAG-COM is a Windows based diagnostic software for Volkswagen, Audi, Seat and Skoda vehicles that emulates the functions of expensive professional scan tools. Fully compatible with all models of the above makes of car or van produced between 1996 and 2006 Protocols Supported - Support terminal K bus communication, Terminal (L) ignition device for waking up ECU. Existed 3 different protocols with same OBD2 connector incl. ISO/KWP, VPW, PMW. This K/L Diagnostic interface & cables work on ISO/KWP (Key Word Protocol) launched after 1996 only. Supported also ISO9141 protocol Function - This VAG_COM OBD II interface enables you to connect your PC to your car so that you can troubleshoot any problems in your vehicle by reading the Diagnostic Trouble Codes (DTCs) that appear when the check engine light is showing.Workable ModelsThis diagnostic cable is usable for ISO9141 and KWP2000 transmission protocol Pls Note - This cable can not work if your car uses a protocol/ bus