SAE J1978
Obd Ii Scan Tool-Equivalent to Iso/Dis 15031-4:December 14, 2001.
This SAE Recommended Practice supersedes SAE J1978 FEB1998, and is technically equivalent to ISO/DIS 15031-4:December 14, 2001.
This document is intended to satisfy the requirements of an OBD scan tool as required by U.S. On-Board Diagnostic (OBD) regulations.
The document specifies: a. A means of establishing communications between an OBD-equipped vehicle and external test equipment; b. A set of diagnostic services to be provided by the external test equipment in order to exercise theservices defined in SAE J1979; and c. Conformance criteria for the external test equipment.
History:Standard | Published | Revision | Status |
---|---|---|---|
J1978_200204 | 2002-04-30 | Latest | |
J1978_199802 | 1998-02-01 | Historical | |
J1978_199406 | 1994-06-01 | Historical | |
J1978_199203 | 1992-03-01 | Historical |