ecuhelp KT200 ECU Programmer has been verified to successfully read and write Audi Q5 EDC17CP20 TC1796 on bench, as demonstrated in the images below.

Image 1. Read Internal Flash 100% yes. 

    

Image 2. Read External Flash 100% OK. 

Image 3. Write ECU EDC17 CP20 TC1796 100% ok. 

KT200 Audi EDC17CP20 TC1796 Wiring Diagram on Bench: 

Compatibility: BOSCH EDC17 CP20 [ 1796 ] – VW / Audi / Seat / Skoda [Diesel] 

Connect the multifunction cable as follows:


To read and write use the following driver:
→ BENCH TRICORE
→ VW / AUDI / SEAT / SKODA
→ TC1796 – VAG
→ EDC17 CP20

To further guide you, we’ve prepared a tutorial video showcasing the step-by-step process of using ecuhelp KT200 2023 to successfully read and write Audi EDC17CP20 TC1796: