Way of Fetrotech read write edc16cp31

One user has problem to read and write edc16cp31 with fetrotech ecu programmer, have three tries with three different cars and all three don’t work put X on mb 16cp31 (shown as below).


Use this top pinout, pay attention to the gpt wiring, as I found the colors on the pinout I used do not match numbers. Opposite to each other.


On pinout one, no need for can hi/lo just k line.

In addition:

Fetrotech EDC16C2 Mercedes pinout :- please also connect CANH + CANL.