Help - help an ignorant woman :)

Hello! For my husband, find the circuit diagram for the engine control unit for the V8, D 11, 3,6l, BJ 93 for the engine control unit, so the PIN occupancy, have now completely downloaded the RLF in the FAQS, but I will not be smarter, what exactly do I have to look for, there are sooooooo many pages - where do I have to look exactly?

Thanks for helping!

Ig Birgit from Salzburg