This SAE Recommended Practice defines the information contained in the header and data fields of non-diagnostic messages for automotive serial communications based on SAE J1850 Class B networks. This document describes and specifies the header fields, data fields, field sizes, scaling, representations, and data positions used within messages.
SAE J2178/4-2004 history
2011SAE J2178/4-2011 Class B Data Communication Network Messages Message Definitions for Three Byte Headers
2004SAE J2178/4-2004 Class B Data Communication Network Messages Message Definitions for Three Byte Headers
1999SAE J2178/4-1999 Class B Data Communication Network Messages - Message Definitions for Three Byte Headers
1995SAE J2178/4-1995 Class B Data Communication Network Messages - Message Definitions for Three Byte Headers@ Recommended Practice