Code ABS ECU

Hello, my Lupo (type AYZ) has meanwhile 372,000 km down and after lighting up the ABS and brake warning lamp and repeated beeping has set the driving readiness. Since I have access to a megamacs42 engine tester, I was able to find out that the ABS control unit (6E0907379B) was defective. Fortunately I also had a part available and installed it. The Lupo runs again great, but now the ESP lamp lights up consistently. As error code I get with ABS: Error code 778 steering angle sensor function incorrect and with motor: Error code 18057 CAN bus drive Communication with ABS control unit missing My research has shown that after replacing the ABS control unit a zero balance of the steering angle sensor has to take place. This is not so wild, but before, as far as I can see this at the moment, still the control unit must be coded. Unfortunately, I found no instructions for this. My question is: has someone done this and can describe how it goes?