The AutoEnginuity VSI-2534 is a J2534-1 and -2 compliant device and is a stand-alone hardware solution.
The J2534-1 Specification covers emissions-related reprogramming which is typically the Engine Control Module and/or Transmission Control Module. The J2534-2 Specification covers everything else. The OEM's aren't mandated to be -2 compliant, but only -1. Everything else is "optional" to the OEM. GM, Ford/Mazda and Toyota are the main OEMs releasing -2 programming calibrations to the Aftermarket.
The J2534 Specification specifically states that calibration data for vehicles 2004+ must be made available by the OEM and that the J1962 connector is to be used. While some manufacturers support earlier vehicles, the J2534 Spec states that manufacturers only have to support 2004+ later vehicles for J2534 programming.
