The Alientech KESS V3 Master ECU Remap Tool is the ultimate ECU and TCU programming solution for professional tuners. Unlike the Slave version, the Master gives you full control over tuning files—read, edit, and write files independently without relying on third-party services.

With KESS V3 Master, you can directly access the engine and transmission control units via the OBD-II port across a wide range of vehicles including cars, motorcycles, trucks, agricultural machines, and marine vessels. It supports all main communication protocols like CAN, K-Line, and J1850, making it compatible with most ECUs on the market.

Key features:

• Full tuning file control – read, edit, and write without restrictions

• Wide vehicle coverage: automotive, motorcycle, commercial, agri, and marine

• Easy-to-use guided software with automatic online updates

• Monitors battery voltage during programming

• Saves injector codes when needed to prevent data loss

• Automatic checksum correction for safe flashing

• Reads and clears DTCs (Diagnostic Trouble Codes)

• Recovery function in case of unexpected errors or PC crash

With its advanced features and unmatched reliability, the KESS V3 Master is an essential tool for tuning workshops, automotive engineers, and ECU programming specialists looking for a professional-grade solution.