Diagnostic Trouble Code Definitions

Standard:
Revised:
  • 2013-03-07
 
Publisher:
  • SAE International
Pages:
17
Scope:

This document supersedes SAE J2012 DEC2007, and is technically equivalent to ISO 15031-6:2010 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. SAE J2012 may also be used for decoding of enhanced diagnostic DTCs and specifies the ranges reserved for vehicle manufacturer specific usage.

This document includes:
a. Diagnostic Trouble Code format.
b. A description of the standardized set of Diagnostic Trouble Codes and descriptions contained in SAE J2012-DA. The two most significant bytes of a DTC may be decoded according to two different lists; DTC Format Identifier 0x00 and 0x04.
c. A description of the standardized set of Diagnostic Trouble Codes subtypes known as Failure Types contained in SAE J2012-DA (applies only when three byte DTCs are used).

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

Rationale:

SAE J2012 is being republished with no appendices to complement the SAE J2012-DA document that is now available. The prior version of SAE J2012 was technically equivalent to ISO 15031-6:2005. The ISO document was subsequently edited and published as an International Standard ISO 15031-6:2010, including minor editorial changes. This version of SAE J2012 includes all of the editorial changes that were included in the published version of the ISO document. This version is updated to include; the latest standardized fault structures, application information and references to SAE J2012-DA. In this update the standardized DTC and FTB lists are published only in SAE J2012-DA.

History:
Standard Published Revision Status
J2012_201612 2016-12-13 Latest Revised
2013-03-07 Historical Revised
2007-12-10 Historical Revised
2002-04-30 Historical Revised
1999-03-01 Historical Revised
1996-07-01 Historical Revised
1994-10-01 Historical Revised
1994-01-01 Historical Revised
1992-03-01 Historical Issued
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