Where are the PCBs located on Miele WT945?

Hi, anyone know if there are any other PCBs on the WT945 model apart from the ones behind the facia? I have heard there is one responsible for the logic control of the pump motor but I am not sure if it is integrated with the facia mounted PCBs or if it is a separate board somewhere? I can look at having the board checked and repaired but need to know which one is responsible for what items and where they are.