When I was working at a Case IH tractor dealership, every time the diagnostic computer is plugged in to a tractor it charges a $50 fee to the dealership's account in order to connect to the Case IH & New Holland (CNH) online server.
Access to the diagnostic server is exclusive to the dealership and this means software updates and certain programming functions cannot be done outside of the dealership.
However, the Case IH & New Holland tractors do have a built in diagnostic system that can be accessed by anyone who knows the trick to enable it without having to go to a dealer to read and clear the fault codes.
Once the diagnostic function is activated, it comes up on the digital instrument display. However, you do need the factory workshop manual to know which buttons need pressing for how long and in what sequence.
