VW Audi Primitive Special factory tool Due to further development of our vehicles and the use of many new control units, it has become necessary for a number of the control units, especially on Audi vehicles, to be connected to a different pin of the diagnosis socket on the vehicle side. In order to allow the exchange of data with all control units (VAS 5051 - onlyth 3m diagnosis leads - and VAS 5052), the relevant diagnosis lead must be fitted to a K line switch.
The new K line switch VAS 6017B is required for the Audi A4 >2005, in particular, and allows access to the CAN bus installed in the vehicle.
The new K lead switch VAS 6017B is compatible with reverse flow and replaces previously used K line switches VAS 6017/6017A. K1 - K line 1 K2 - K line 2 A - Attempting to address While an attempt is made to address the control unit, the yellow LED will light up. As soon as the control unit responds, the yellow LED will go out and the relevant green LED (K1 and K2) will light up.