OTR Diagnostics

OTR Diagnostics — Trusted by 10,000+ truck owners. A heavy-duty scan tool powered by OTR Assist and OTR LINK 2 that decodes fault codes and helps you decide if you can keep driving or need service now.

Bi-directional commands reset active and inactive fault codes, reset derates, and run controlled regen from the cab. It also provides fault-code insights, live data monitoring (DPF fluid/soot levels, EGR valve position, exhaust temps, boost, pedal position, and fuel delivery pressure), and a complete history to track issues and repairs.