yes that is correct, I got by with my star mobile/witech until 2013 then forced to buy the micropod 2 to be able to work on the new platform. passthru is mostly for powertrain programming although gm allows way more than other manufacturer but I don't trust it past powertrain in certain vehicles, specially cadillacs and other late model vehicles . I use the mdi for tech2 win and gds2, and programming/flashing on mdi and tech2, don't trust anything else although the maxiflash jbox has proved to work very well in most cases. on Chrysler, witech only and drb3 for non canbus, don't trust the drb3 emulator either nor any jbox. I believe Chrysler is the most sensitive one when it comes to the tool being used. ford is not that bad, they allow a few other modules besides powertrain, specially after 2010, even timed pats but still kind of limited compared to gm, ids is a must but autel jbox works pretty good, mazda as well. Nissan passtru and ners the same, powertrain only and it takes for ever, specially on blank tcm, the reason I don't use it, consult 3 plus is a must, autel jbox works very well. same for japs except Honda, lots of issues here on their software but the new hds configured with autel jbox works excellent. on Europeans I mostly stay away as far as possible, have not time for this over engineered, senseless and pampered vehicles.