Sae J1939-73 Pdf -

is the standard document that defines the Application Layer for Diagnostics within the broader SAE J1939 protocol suite. It establishes the specific message structures, behavior, and procedures used to communicate diagnostic information between Electronic Control Units (ECUs) in heavy-duty vehicles such as trucks, buses, and agricultural equipment. Overview of SAE J1939-73

. It defines the diagnostic services and messages (Diagnostic Messages, or DMs) used for communicating between electronic control units (ECUs) in heavy-duty vehicles. Sae J1939-73 Pdf

In a physical network, diagnostics often start with verifying the 250 Kbps baud rate and the presence of two termination resistors. is the standard document that defines the Application