J1979DA_202305 J1979-DA, Digital Annex of E/E Diagnostic Test Modes

Revised

05/24/2023

Scope
Content

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.

Rationale
Content
Updated to include new and revised data identifiers, primarily ZEV-related from CARB Advanced Clean Cars II rulemaking.
Details
DOI
https://doi.org/10.4271/J1979DA_202305
Citation
SAE International Supplement, J1979-DA, Digital Annex of E/E Diagnostic Test Modes, SAE Standard J1979DA_202305, Revised May 2023, Issued September 2010, https://doi.org/10.4271/J1979DA_202305.
Additional Details
Publisher
Published
May 24, 2023
Product Code
J1979DA_202305
Content Type
Supplement
Status
Revised
Language
English