AEG 40010VI – 911935627/03 Dishwasher

Dishwasher is not showing any display. I’ve checked all the obvious possibilities but after a recent experience where I got my fingers burnt with an IkeaElectrolux dishwasher, and ended up with a module that I will probably never use, I thought I would seek any possible advice. Firstly, does anyone have a wiring diagram for the above please? I am getting a reading of 42 volts to the module, and I think this may be the problem. Why am I only getting 42 volts? I am getting 240 at the on/off switch, but the supply to the module disappears off into the sump somewhere before coming back up to the module. Any help greatly appreciated. Cheers. Steve.