Found an error? Let me know. I physically probed this ECU, but manufacturing tolerances exist. Always double-check with a multimeter before applying power.
Note: This document summarizes a verified pinout for the Bosch ME20 engine control unit (ECU), along with wiring notes, common signals, testing tips, and safety/diagnostic considerations. Use it for reference during bench-testing, wiring harness repair, diagnostics, or retrofit projects. Confirm with continuity testing and the specific ECU label/connector before making permanent wiring changes. bosch me20 pinout verified
: Used for diagnostic communication and reading/writing firmware. Found an error