PTO-Induced J1939 Interference: Diagnosis, Shielding, and Filtering Solutions
Late one October evening, a silage contractor working the Nebraska-Kansas line phoned me with a problem that had already eaten two full days of his harvest window. His self-propelled forage harvester had developed a ghost inside the J1939 backbone. The instant the PTO stub shaft engaged, nodes would vanish — fifty healthy CAN messages per second collapsing into […]