Purpose

This document supersedes SAE J2012 APR2002, and is technically equivalent to ISO 15031-6:2005 with the exceptions described in Section 1.2.

This document is intended to define the standardized Diagnostic Trouble Codes (DTC) that On-Board Diagnostic (OBD) systems in vehicles are required to report when malfunctions are detected.

This document includes:

a. Diagnostic Trouble Code format.

b. A standardized set of Diagnostic Trouble Codes and descriptions

c. A standardized set of Diagnostic Trouble Codes subtypes known as Failure Types

Differences from ISO Document

The differences to the ISO document 15031-6:2005 are the removal of figures in Section 3. The figures have been moved to SAE J1930. The DTC and FTB appendixes have been updated to reflect the latest industry standardized DTC and FTB definitions.

Customers who purchased SAE J2012
also purchased

• SAE J1850 : Class B Data Communications Network Interface
• SAE J1979 : E/E Diagnostic Test Modes
• SAE J1930DA : J1930 Electrical/Electronic Systems Diagnostic Terms, Definitions, Abbreviations, and Acronyms Web Tool Spreadsheet-See Also SAE J1930
• SAE J1939-73 : Application Layer - Diagnostics

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