Another question I have is if modules must have matching VINs. I read something where the active steering module might check the VIN, but not sure about that.
Also, just to be complete, I swapped in $541 into the vehicle order to see what would happen - same two "vehicle interface" errors. It's so weird the ACC option needs a different hydro block in LCI cars. The $544 option already has the brake function, so it has a pressure sensor in there. ISTA-P seems to look at more than the VO as it initializes. The car integration level must be determined somehow or is saved on a module(s). I'll poke around the new hydro unit/DSC ECU when it arrives.
Last edited by robinasu; 06-05-2020 at 03:59 PM..
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