Tech2win and GDS2 software are two software that supports diagnostics and programming for GM vehicles. In addition, they have many other functions to help technicians during vehicle repair.

Tech2win: Read and clear fault codes, with this function the software will display each error code and you can clear the errors directly on the software…
GDS2 software: Read VIN, ECU part number, and software number; Record, store, and playback stored data; Control and monitor Output Control functions.