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
Also available: The J2012 Diagnostic Trouble Code Definitions Spreadsheet provides DTC information in an excel format for use in your organization's work processes.