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.

Customers who purchased SAE J1699-3
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• SAE J1850 : Class B Data Communications Network Interface
• SAE J1930DA : J1930 Electrical/Electronic Systems Diagnostic Terms, Definitions, Abbreviations, and Acronyms Web Tool Spreadsheet-See Also SAE J1930
• SAE J1979 : E/E Diagnostic Test Modes
• SAE J2012 : (R) Diagnostic Trouble Code Definitions-See Also SAE J2012DA

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