I just ordered a v2 from cummins tuner but I am having second thoughts. Can I use it just like the autocal to put my tunes on my truck and check and clear codes without a laptop. I may try playing around some with programming but if I can't figure it out or am not comfortable with it can I just use it like the autocal. I guess what I am asking is can it just be used by itself if I decide not to do any kind of programming on my own.