> Good luck for average Joe Farmer troubleshooting why the hydraulic valve doesn't work? Can be everything from a faulty valve or cabin switch over broken shiel

> Good luck for average Joe Farmer troubleshooting why the hydraulic valve doesn't work? Can be everything from a faulty valve or cabin switch over broken shielding somewhere along the CAN (or other) high speed bus leading to garbled transmissions to a software bug somewhere in the control unit. The farmer can easily fix a broken component - but good luck finding the issue in the latter two failure modes, I doubt it's even possible for a small freelance shop as it requires HF communications or IT knowledge combined with specialized tooling (signal analyzer, some kind of debugging tool for the CU). If the machine was built for reparability, it could have built-in diagnostics that could greatly help troubleshoot those kind of problems. For instance, couldn't broken shielding leading to garbled transmissions be partially diagnosed if error rates over the cable are tracked and a warning displayed that identifies the part in question?