The J1939 series of SAE Recommended Practices has been developed by the Truck and Bus Control and Communications Network Subcommittee of the Truck and Bus Electrical and Electronics Committee. The objectives of the subcommittee are to develop inform
This document has also changed to comply with the SAE Technical Standards Board format. Definitions have changed to Section 3 and Abbreviations to Section 4. All other sections numbers have changed accordingly.
This document supersedes SAE J1979 SEP1997, and is technically equivalent to ISO/DIS 15031-5:April 30, 2002, except for minor reorganisation of Paragraphs 1 and 2. Foreword—On-Board Diagnostic (OBD) regulations require passenger cars, and light and
