J1979-DA, Digital Annex of E/E Diagnostic Test Modes, 2024版本

J1979-DA, Digital Annex of E/E Diagnostic Test Modes J1979DA_202404 On-Board Diagnostic (OBD) regulations require passenger cars, and light and medium duty trucks, to support communication of a minimum set of diagnostic information to off-board “generic” test equipment. This document specifies the diagnostic data which may be required to be supported by motor vehicles and external test equipment for diagnostic purposes which pertain to motor vehicle emission-related data. SAE J1979 was originall