Normally the K-LINE output is at the seventh pin of the OBD2 connector; However in some models (e.g. 2004 Porsche Cayenne) the K-LINE can be located on pin 3 or 15. Because of that there is an option to choose the pin where the connection is to be attempted.

ATTENTION: If you check all pins to be examined (i.e. pin3, pin7, pin15 the time for scanning all units will be significantly increased. Due to this the default pin selected is only one (pin7).