Product Code:SAE J2178/3 Title:Class B Data Communication Network Messages--Part 3 Frame Ids for Single-Byte Forms of Headers Issuing Committee:Vehicle Architecture For Data Communications Standards Scope:This SAE Recommended Practice defines the information contained in the header and data fields of nondiagnostic 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.