Hi, maybe someone can help me.
Today I was optimizing my own stage 1 file for my A4 B6.
I was trying to write it via MPPS, which worked perfectly a month ago, but now everytime I try to write I get an Error "No reply from ECU".
So I tried it via KESS V2, which also didnt work. Error Message "Wake up Error".
A few weeks ago I changed the Electronic module for steering to get the cruise control working.
Is it possible that the error has something to do with this?
Or does anyone know why I cant write my ECU anymore?

Thanks from Germany