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Standard

Vehicle OBD II Compliance Test Cases

2017-11-12
WIP
J1699/3
The main purpose of this Recommended Practice is to verify that vehicles are capable of communicating a minimum subset of information, in accordance with the diagnostic test services specified in SAE J1979: E/E Diagnostic Test Modes, or the equivalent document ISO 15031-5: Communication Between Vehicle and External Equipment for Emissions-Related Diagnostics – Part 5: Emissions-related diagnostic services. Any software meeting these specifications will utilize the vehicle interface that is defined in SAE J2534, Recommended Practice for Pass-Thru Vehicle Programming.
Standard

SAE J1850 Verification Test Procedures

2010-10-04
WIP
J1699/1
This SAE Recommended Practice recommends test methods, test procedures, and specific test parameters to help verify that vehicles and test tools can communicate using the SAE J1850. This document only verifies the portion of SAE J1850 that is used for OBD-II communications. The term "test tool" is synonymous with OBD-II Scan tool.
Standard

SAE J1850 Verification Test Procedures

2006-06-05
CURRENT
J1699/1_200606
This SAE Recommended Practice recommends test methods, test procedures, and specific test parameters to help verify that vehicles and test tools can communicate using the SAE J1850. This document only verifies the portion of SAE J1850 that is used for OBD-II communications. The term “test tool” is synonymous with OBD-II Scan tool.
Standard

Recommended Practice for Pass-Thru Vehicle Programming

2018-06-14
WIP
J2534/1
This SAE Recommended Practice describes a standardized interface that connects between a standard personal computer (PC) and vehicle. The purpose of this interface is to enable the reprogramming of emission-related control modules, in 2004 and later model year vehicles. The interface shall consist of the necessary hardware and/or software to support the requirements defined in this document. It is expected that vehicle manufacturers will provide the software application that will control the Pass-Thru Interface, to perform the actual reprogramming. The goal of this document is to ensure that reprogramming software from any vehicle manufacturer is compatible with interface supplied by any tool manufacturer. A common interface for all vehicle manufacturers reduces the tool costs for aftermarket garages, while allowing each vehicle manufacturer to control the programming sequence for the electronic control units (ECUs) in their vehicles.
Standard

Optional Pass-Thru Features

2019-02-14
WIP
J2534/2

SAE J2534-1 defines a standard vehicle network interface that can be used to reprogram emission-related control modules. However, there is a need to support vehicles prior to the 2004 model year, as well as non-emission related control modules.

The SAE J2534-2 document meets these needs by detailing extensions to an SAE J2534-1 specification. It is not required for an interface to be fully compliant with SAE J2534-1 specification to implement some of the features specified in this document. Together, these extensions provide the framework for a common interface to protect the software investment of the Vehicle OEMs and Scan Tool manufacturers.

Only the optional features will be described by this document and are based on the December 2004 publication of SAE J2534-1.

Standard

Off-Board Diagnostic Message Formats

1990-11-01
HISTORICAL
J2037_199011
This SAE Information Report is an example of how J1850 might be used to implement diagnostics in a vehicle. The utilities defined for J2037 are designed to facilitate manufacturing and service diagnosis requirements. Definition of the capability includes definition of standard messages and the dialogue necessary to provide the capability. the standard messages will be distinguished by the contents of the first data byte which specifies the diagnostic operation. Note that some vehicle applications will not require the implementation of all the defined diagnostic capabilities, and consequently, these applications will not support all message modes.
Standard

OBD-II Related SAE Specification Verification Test Procedures1

1998-01-01
HISTORICAL
J1699/2_199801
This SAE Recommended Practice recommends test methods, test procedures, and specific test parameters to help verify that vehicles and test tools can communicate using SAE J1962. These test procedures are to be used whenever SAE J1850 communication parameters need to be verified. However, all specific details for testing are not specified, e.g., sample size, environment, vibration, etc.
Standard

OBD II Scan Tool -- Equivalent to ISO/DIS 15031-4:December 14, 2001

1992-03-01
HISTORICAL
J1978_199203
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 the services defined in SAE J1979, c. Conformance criteria for the external test equipment. Differences from ISO Document The ISO 15031-4 document is intended to satisfy the requirements of OBD requirements in countries other than the U.S., and includes functionality not required or not allowed in the U.S. Notable exceptions are: a. Proposed U.S. OBD regulations will allow ISO 15765-4 as an allowable OBD serial data link at 500 kbps only.
Standard

OBD II Scan Tool -- Equivalent to ISO/DIS 15031-4:December 14, 2001

2011-02-08
WIP
J1978
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 the services defined in SAE J1979, c. Conformance criteria for the external test equipment. Differences from ISO Document The ISO 15031-4 document is intended to satisfy the requirements of OBD requirements in countries other than the U.S., and includes functionality not required or not allowed in the U.S. Notable exceptions are: a. Proposed U.S. OBD regulations will allow ISO 15765-4 as an allowable OBD serial data link at 500 kbps only.
Standard

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

2014-06-10
HISTORICAL
J1979DA_201406
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.
Standard

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

2017-02-16
HISTORICAL
J1979DA_201702
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.
Standard

Guidelines for Developing and Revision SAE Nomenclature and Definitions

2015-04-19
WIP
J1115
Historically SAE has been concerned with nomenclature as an integral part of the standards development process. Guidelines for automotive nomenclature were written in 1916, were last revised in 1941, and were included in the SAE Handbook until 1962. The present diversity of groups working on nomenclature in the various ground vehicle committees led to the organization of the Nomenclature Advisory Committee under SAE Automotive Council.
Standard

E/E Diagnostic Test Modes

2017-05-19
WIP
J1979-2
SAE J1979/ISO 15031-5 set includes the communication between the vehicle's OBD systems and test equipment implemented across vehicles within the scope of the legislated emissions-related OBD.
Standard

E/E Diagnostic Test Modes

1996-07-01
HISTORICAL
J1979_199607
This document supersedes SAE J1979 May 2007, and is technically equivalent to ISO 15031-5 2010, with the addition of new capabilities required by revised regulations from the California Air Resources Board and revised regulations from the European Commission. This document is intended to satisfy the data reporting requirements of On-Board Diagnostic (OBD) regulations in the United States and Europe, and any other region that may adopt similar requirements in the future.
Standard

E/E Diagnostic Test Modes

1994-06-01
HISTORICAL
J1979_199406
SAE J1979 / ISO 15031-5 set includes the communication between the vehicle's OBD systems and test equipment implemented across vehicles within the scope of the legislated emissions-related OBD.
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