In a recent article, JCOM1939 Monitor Update Adds CAN Bus Diagnostics and Silent Monitoring Mode, we introduced several improvements currently being prepared for the JCOM1939 Monitor software for Windows. The upcoming release adds improved CAN Bus diagnostics, including receive and transmit error counters, CAN controller status information, CAN Bus load, and…
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How to Develop J1939 Software Without Access to a Vehicle
By Wilfried Voss on June 17, 2026
If you are new to SAE J1939 development, you may believe that access to a truck, engine, generator, or agricultural machine is required before you can write any meaningful software. While eventually you will want to test your application on real equipment, the majority of J1939 software development can be…


