Diagnostic messages include an 8-bit Source Address (SA) representing the unique identity of the ECU reporting the fault.
Stored codes that are no longer actively failing but remain in memory. Used for historical analysis. Sae J1939-73 Pdf
. It provides the necessary framework for vehicle service tools to communicate with electronic control units (ECUs) to identify, troubleshoot, and clear system faults. SAE International The Role of J1939-73 in Vehicle Health Diagnostic messages include an 8-bit Source Address (SA)
Facilitates the movement of large data blocks, such as software updates or calibration files. Stop Start Broadcast: Sae J1939-73 Pdf
