ECUHELP KT200II test result of Skoda Edc16u34: read, write, checksum by tool. Ok.
Attach 2 images of reading 100% ok and writing 100% ok.

KT200II wiring diagram of BOSCH EDC16 U34 [ MPC561/2 ] – Audi, Vw, Seat, Skoda [Diesel]
Connect the multifunction cable as follows, use the Bench Box:

Use KT200II to read and write using the following driver:
→ [brand]
→ MPC561/2 – [brand]
→ EDC16 U34

All right, please follow the above steps to program Edc16u34 VAG with ECUHELP KT200II ECU Tool.