SAE J1979_199607
E/E DIAGNOSTIC TEST MODES
Historical
Standard by SAE International, 1996-07-01
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About This Item
This SAE Recommended Practice defines diagnostic test modes, and request and response messages, necessary to be supported by vehicle manufacturers and test tools to meet the requirements of the California OBD II and Federal OBD regulations, which pertain to vehicle emission-related data only. These messages are intended to be used by any service tool capable of performing the mandated diagnostics.
In addition, capabilities are defined that are intended to meet other Federal and State regulations pertaining to related issues such as Inspection and Maintenance (I/M) and service information availability. This document is not considered a final authority for interpretation of the regulations, so the reader should determine the applicability of the capabilities defined in this document for their specific need.
Diagnostic Test Modes included in this document are:
For each test mode, this specification includes:
a
Functional descriptions of test mode
b
Request and response message formats
For some of the more complex test modes, an example of messages and an explanation of the interpretation of those messages is included.
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Standard Details
- Publication Date: 1996-07-01
- Standard Status: historical
- Publisher: SAE International
- Document Type: Ground Vehicle Standard
- Subject: Throttles, Electrical systems, On-board diagnostics (OBD), Diagnostics, Environmental protection, Architecture, Control systems, Vehicle networking,
- Official SAE: Doi link
Document History
- New Version Available: J1979_202505 (2025-05-23)
- Previous Version: J1979-3_202310 (2023-10-06)
- Previous Version: J1979-3_202212 (2022-12-16)
- Previous Version: J1979-2_202104 (2021-04-22)
- Previous Version: J1979_201702 (2017-02-16)
- Previous Version: J1979_201408 (2014-08-11)
- Previous Version: J1979_201202 (2012-02-23)
- Previous Version: J1979_201009 (2010-09-28)
- Previous Version: J1979_200705 (2007-05-30)
- Previous Version: J1979_200204 (2002-04-30)
- Previous Version: J1979_199709 (1997-09-01)
- This Version: J1979_199607 (1996-07-01)
- Previous Version: J1979_199406 (1994-06-01)
- Previous Version: J1979_199112 (1991-12-01)
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