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SAE J2012

Diagnostic Trouble Code Definitions

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Organization: SAE
Publication Date: 1 December 2016
Status: active
Page Count: 16
scope:

Purpose

This document supersedes SAE J2012 DEC2007, and is technically equivalent to ISO 15031-6:2010 with the exceptions described in 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 J2012DA. 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).

Differences from ISO Document

The differences to the ISO document 15031-6:2010 are descriptions of the SAE J2012DA containing the latest industry standardized DTC and FTB definitions.

Document History

SAE J2012
December 1, 2016
Diagnostic Trouble Code Definitions
Purpose This document supersedes SAE J2012 DEC2007, and is technically equivalent to ISO 15031-6:2010 with the exceptions described in 1.2. This document is intended to define the standardized...
SAE J2012
March 1, 2013
(R) Diagnostic Trouble Code Definitions
Purpose 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...
SAE J2012
December 1, 2007
(R) Diagnostic Trouble Code Definitions
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...
SAE J2012
April 1, 2002
(R) Diagnostic Trouble Code Definitions Equivalent to ISO/DIS 15031-6:April 30, 2002
Purpose - This SAE Recommended Practice supersedes SAE J2012 MAR1999, and is technically equivalent to ISO/DIS 15031-6:April 30, 2002. This document is intended to define the standardized Diagnostic...
SAE J2012
March 1, 1999
Recommended Practice for Diagnostic Trouble Code Definitions
This SAE Recommended Practice is applicable to all light-duty and medium-duty passenger vehicles and trucks with feedback fuel control system. Specific applications of this document include...
SAE J2012
July 1, 1996
Recommended Practice for Diagnostic Trouble Code Definitions
A description is not available for this item.
SAE J2012
July 1, 1996
Recommended Practice for Diagnostic Trouble Code Definitions, Recommended Practice
A description is not available for this item.
SAE J2012
October 1, 1994
Recommended Practice for Diagnostic Trouble Code Definitions
The SAE Recommended Practice is applicable to all light-duty and medium-duty passenger vehicles and trucks with feedback fuel control system. Specific applications of this document include...
SAE J2012
January 12, 1994
(R) Recommended Practice for Diagnostic Trouble Code Definitions
The SAE Recommended Practice is applicable to all light-duty and medium-duty passenger vehicles and trucks with feedback fuel control system. Specific applications of this document include...
SAE J2012
March 30, 1992
Diagnostic Trouble Code Definitions
This SAE Recommended Practice is applicable to all light duty and medium duty passenger vehicles and trucks with feedback fuel control system. Specific applications of this document include...
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References

This document references:
SAE J1979 - (R) E/E Diagnostic Test Modes
Published by SAE on February 1, 2017
Introduction SAE J1979/ISO 15031-5 set includes the communication between the vehicle's OBD systems and test equipment implemented across vehicles within the scope of the legislated emissions-related...
This document references:
BS ISO/IEC 10731 - Information Technology - Open Systems - Interconnection - Basic Reference Model - Conventions for the Definition of OSI Services
Published by BSI on April 15, 1995
A description is not available for this item.
This document references:
ISO 11898-1 - Road vehicles - Controller area network (CAN) - Part 1: Data link layer and physical signalling
Published by ISO on December 15, 2015
This part of ISO 11898 specifies the characteristics of setting up an interchange of digital information between modules implementing the CAN data link layer. Controller area network is a serial...
This document references:
ISO 14229-2 - Road vehicles - Unified diagnostic services (UDS) - Part 2: Session layer services
Published by ISO on February 15, 2013
This part of ISO 14229 specifies data link independent requirements of session layer services. This part of ISO 14229 specifies common session layer services to provide independence between unified...
This document references:
SAE J1979 - (R) E/E Diagnostic Test Modes
Published by SAE on February 1, 2017
Introduction SAE J1979/ISO 15031-5 set includes the communication between the vehicle's OBD systems and test equipment implemented across vehicles within the scope of the legislated emissions-related...
This document is referenced by:
40 CFR PART 86 - CONTROL OF EMISSIONS FROM NEW AND IN-USE HIGHWAY VEHICLES AND ENGINES
Published by EPA on July 1, 2015
A description is not available for this item.
This document is referenced by:
SAE J1699-3 - (R) Vehicle OBD II Compliance Test Cases
Published by SAE on July 1, 2017
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...
This document is referenced by:
SAE J1699-2 - (R) Test Cases for OBD-II Scan Tools and I/M Test Equipment
Published by SAE on September 1, 2017
To define test cases for the OBD-II interface on external test equipment (such as an OBD-II Scan Tool, Inspection/Maintenance Tester, etc.) which can be used to verify compliance with the applicable...
This document is referenced by:
BS ISO 15031-6 - Road vehicles - Communication between vehicle and external equipment for emissions-related diagnostics Part 6: Diagnostic trouble code definitions
Published by BSI on August 31, 2015
A description is not available for this item.
This document is referenced by:
ISO 14230-2 - Road vehicles - Diagnostic communication over K-Line (DoKLine) - Part 2: Data link layer
Published by ISO on August 15, 2016
This document specifies data link layer services tailored to meet the requirements of UART-based vehicle communication systems on K-Line as specified in ISO 14230-1. It has been defined in accordance...
This document is referenced by:
ISO 14230-2 - Road vehicles - Diagnostic communication over K-Line (DoKLine) - Part 2: Data link layer
Published by ISO on August 15, 2016
This document specifies data link layer services tailored to meet the requirements of UART-based vehicle communication systems on K-Line as specified in ISO 14230-1. It has been defined in accordance...
View Less
View All
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