I have the GM package 3.xx not sure which update (will look if needed). I thought you could at least scan different brands just not tune. Is that correct?

When I scan 2013 Gm it is fine, see gauges moving, and changes in channel readouts. Then I hook up to a 2007 Jeep jk the interface says power, busy and error lights and no movement in gauges or in the channels plus it locks up. Have to shut down and restart computer to go again.

All I want to be able to do on the jeep is see what it is doing and how things are cycling, like the a/c pressures. Do not want to save or tune it that is for the GM.

Thanks