I am on phone at the moment.
But you probably have a can driven autosteer on such a New model. So go the can way you find on discourse.
Also look in the case IH puma 230 thread
Somewhere there is a thread About a cnh with Danfoss can valve.
Edit : try Google and ask: service manual nh t5. 120
Date of manual should probably be after 2016
You might even find one in your own language.
Edit 2: look in canbus around post 433 CanBus for Beginners - Super Simple