While the KTAG 7.020 (Red PCB) is a clone tool, it is widely used for this specific task. This guide outlines the hardware requirements, pinout, and the step-by-step procedure to read the ECU safely.
: Typically version 2.23 or 2.25, installed on a stable Windows machine. How to read Mercedes EDC17CP57 with Ktag 7.020 GPT cable