My ktag software is up to date but when i click on to it there white lines over the selected ecu's and will not let me do anything ,does it have to be connected to a ecu to work.
kess ok on obd ok it works,tricore has white lines on them two .
kess works off line ktag will not work off line does ktag have to online to use thanks
any idea thanks

you should be able to open up the protocol to view the connection documents, you shouldn't have any problems. do you have an original or a clone?

K-Tag now needs to be connected to the internet to work.