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 originally developed to meet U.S. OBD requirements for 1996 and later model year vehicles. ISO 15031 5 was based on SAE J1979 and was intended to combine the U.S. requirements with European OBD requirements for 2000 and later model year vehicles.
SAE J1979DA-2022 history
2024SAE J1979DA-2024 J1979-DA, Digital Annex of E/E Diagnostic Test Modes
2023SAE J1979DA-2023 J1979-DA, Digital Annex of E/E Diagnostic Test Modes
2023SAE J1979-3-2023 Brake-Stroke Indicator Design Guideline for Cam or Disc Air-Brake Actuators
2022SAE J1979DA-2022 J1979-DA, Digital Annex of E/E Diagnostic Test Modes
2022SAE J1979-3-2022 E/E Diagnostic Test Modes: Zero Emission Vehicle Propulsion Systems on UDS (ZEVonUDS)
2021SAE J1979DA-2021 J1979-DA, Digital Annex of E/E Diagnostic Test Modes
2021SAE J1979-DA-2021 Digital Annex of E/E Diagnostic Test Modes (See Also SAE J1979; Includes Access to Additional Content)
2019SAE J1979DA-2019 J1979-DA, Digital Annex of E/E Diagnostic Test Modes
2019SAE J1979-DA-2019 Digital Annex of E/E Diagnostic Test Modes (See Also SAE J1979)
2017SAE J1979DA-2017 J1979-DA, Digital Annex of E/E Diagnostic Test Modes
2017SAE J1979-DA-2017 Digital Annex of E/E Diagnostic Test Modes (See Also SAE J1979)