Port :1301Palmer Performance OBDNet

Palmer Performance OBDNet runs over TCP port 1301 to enable automotive diagnostic applications to communicate with a vehicle's Electronic Control Units (ECUs). Instead of a traditional serial OBD-II connection, this protocol encapsulates OBD data over IP, facilitating access through wireless or wired networks. This approach is especially useful for remote diagnostics, fleet monitoring, or when integrating OBD capabilities into mobile or desktop platforms.

The protocol typically utilizes custom command sets that interface with vehicle ECUs, allowing for reading fault codes (DTCs), streaming live sensor data, and issuing control commands. Due to its proprietary nature, full protocol specifications may not be widely published, but it generally follows the structure of encapsulating OBD-II PID (Parameter ID) requests over a TCP session to the hardware interface, which then communicates with the car's CAN bus.

Implementation often involves diagnostic software such as those from Palmer Performance (e.g., DashCommand) or third-party tools compatible with their hardware interfaces. The use of TCP allows for reliable, ordered data transfer essential for accurate diagnostics, firmware updates, and real-time telemetry, which is critical in automotive environments where data integrity is a must.