UniDiag KWP2000 is an automotive diagnostic and ECU communication utility focused on the Keyword Protocol 2000 (ISO 14230). It allows users to connect to compatible control units over the OBD-II K-line to identify ECUs, read and clear diagnostic trouble codes, monitor live sensor data, and perform basic actuator tests and service procedures. Some versions also expose low-level functions such as memory reading or writing for advanced workflows, subject to ECU support. The tool targets legacy vehicles that use KWP2000 rather than newer UDS-on-CAN systems and typically requires a compliant K-line interface/adapter. It is intended for professional technicians and experienced enthusiasts; improper use can affect vehicle operation. Feature availability may vary by vehicle, ECU, and adapter.
UniDiag KWP2000 is developed by SanderQV. The most popular version of this product among our users is 0.4. The name of the program executable file is UniDiagKWP2000.exe.
You can check DashDiag III, WBH-Diag, Multi-Di@g Scope and other related programs like DIAG+ at the "download" section.
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