Randy from Phoenix, Arizona wanting to learn about CAN bus systems

I have a 1966 F100 which I recently swapped in a 2020 Ford Raptor Twin Turbo V6 along with a 10 speed auto. It's up and running and driving great but I would like to learn more about adding and removing modules from the CAN system. More so things like ABS, Electronic Steering, Airbags etc. I did build my own harness which took a ton of time but still feel so much more to learn. Looking for help on how to have PCM not see modules like ABS, EPAS, Diff Lock, I am also having problems trying to get the Brushless fans to turn on. Shop manual shows no info on what actually turns the fans on. The shift mode does not work the trans stays in tow/haul mode.