ECUHELP KT200II is confirmed to read/write the Audi Q3 2020 edc17c74 on bench, and the checksum is ok too.
Image 1 displays how the KT200II is connected to edc17c74 on Bench, and the KT200II is writing edc17c74 100% ok.
In detail, connect the KT200II multifunction cable as follows:
To read and write use the following driver:
→ BENCH TRICORE
→ VOLKSWAGEN / AUDI / SEAT / SKODA
→ TC1793 – VAG
→ EDC17 C74
Attention:
On some EDC17C74 the CAN line is shifted. If the previous pinout doesn’t enter in bench tricore mode, then try again by connecting it as follows:
