The Welder Kicks On, Your Diagnostic Link Drops Out: Hardening Heavy-Duty OBD2 Systems Against Industrial EMI

The bay is clear. You’re deep into a mandated DPF regeneration trace on a quarter-million-dollar hauler, the data stream inching toward a ghost code that’s cost weeks of downtime. Then—crack-hiss. The adjacent stall’s arc welder fires. Your screen stutters, freezes. “Link Lost.” The cycle aborts. You’ve just burned thirty minutes of labor and triggered a forced regen […]