Hi everyone. The driving assist camera (A5) that I had from new originally failed. It was visible in the gateway but showed several errors. I bought a used replacement, had it adapted by a professional company, and it worked flawlessly for a few years until it died too. This time it seemed to be a power supply issue because it was completely dead and not visible in the Gateway at all.

I decided to swap the PCB (board) from my first original camera into the housing of the second one. Now the camera is alive and visible again. There are absolutely no errors in module A5. Sign recognition (VIBR) is working fine. Lane Assist can be switched on in the infotainment menu, but it doesn't actually work (it fails to detect lane markings).

However, my ACC (Module 13) is now down and throws 3 static U112100 "Data bus missing message" errors that cannot be cleared.

What is the next step to get this sorted? Does it need parameterization (dataset/XML), coding, or calibration? Any help would be appreciated.

You have vnci red/vas6154a or b?