ISO 15031-5:2015

Road vehicles — Communication between vehicle and external equipment for emissions-related diagnostics — Part 5: Emissions-related diagnostic services

ISO 15031-5:2015 is intended to satisfy the data reporting requirements of On-Board Diagnostic (OBD) regulations in the United States and Europe and any other region that may adopt similar requirements in the future. It specifies: message formats for request and response messages, timing requirements between request messages from external test equipment and response messages from vehicles and between those messages and subsequent request messages, behaviour of both the vehicle and external test equipment if data are not available, and a set of diagnostic services, with corresponding content of request and response messages, to satisfy OBD regulations. ISO 15031-5:2015 includes capabilities required to satisfy OBD requirements for multiple regions, model years, engine types, and vehicle types. Those regulations are not yet final for some regions and are expected to change in the future. ISO 15031-5:2015 makes no attempt to interpret the regulations and does not include applicability of the included diagnostic services and data parameters for various vehicle applications. The user of ISO 15031-5:2015 is responsible for verifying the applicability of each clause of this part of ISO 15031 for a specific vehicle, engine, model year, and region. ISO 15031-5:2015 specifies diagnostic services and functionally addressed request/response messages required to be supported by motor vehicles and external test equipment for diagnostic purposes which pertain to motor vehicle emission-related data. Any external test equipment meeting the requirements of ISO 15031‑4 use these messages to retrieve emissions-related information from the vehicle. Each clause in ISO 15031-5:2015 which specifies additional details to existing clauses of ISO 9141‑2, ISO 14230‑4, SAE J1850, and ISO 15765‑4 supersede those specifications. ISO 15031-5:2015 references SAE J1979-DA (Digital Annex), which includes all definitions of PIDs, OBDMIDs, TIDs, and INFOTYPEs. ISO 15031-5:2015 provides the mechanism to satisfy the requirements included in the country-specific regulations and not all capabilities included in ISO 15031-5:2015 are required by the country-specific regulations. ISO 15031-5:2015 is not considered a final authority for interpretation of the regulations. Therefore, readers should determine the applicability of capabilities defined in ISO 15031-5:2015 for their own specific needs.

Véhicules routiers — Communications entre un véhicule et un équipement externe pour le diagnostic relatif aux émissions — Partie 5: Services de diagnostic relatif aux émissions

General Information

• Status: Published
• Publication Date: 27-Jul-2015
• ICS: 13.040.50 - Transport exhaust emissions
• ICS: 43.040.10 - Electrical and electronic equipment
• Technical Committee: ISO/TC 22/SC 31 - Data communication
• Drafting Committee: ISO/TC 22/SC 31/WG 2 - Vehicle diagnostic protocols
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 28-Jun-2021

Relations

• Revises: ISO 15031-5:2011 - Road vehicles — Communication between vehicle and external equipment for emissions-related diagnostics — Part 5: Emissions-related diagnostic services
• Effective Date: 12-Apr-2014

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 15031-5
Third edition
2015-08-01
Road vehicles — Communication
between vehicle and external
equipment for emissions-related
diagnostics —
Part 5:
Emissions-related diagnostic services
Véhicules routiers — Communications entre un véhicule et un
équipement externe pour le diagnostic relatif aux émissions —
Partie 5: Services de diagnostic relatif aux émissions
Reference number
ISO 15031-5:2015(E)
©
ISO 2015

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ISO 15031-5:2015(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2015, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
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www.iso.org
ii © ISO 2015 – All rights reserved

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ISO 15031-5:2015(E)

Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, and abbreviated terms . 2
3.1 Terms and definitions . 2
3.2 Abbreviated terms . 4
4 Conventions . 6
5 Document overview. 6
6 Technical requirements . 6
6.1 General requirements . 6
6.2 Diagnostic service requirements . 6
6.2.1 Multiple responses to a single data request . 6
6.2.2 Application timing parameter definition . 7
6.2.3 Minimum time between requests from external test equipment .18
6.2.4 Data not available .26
6.2.5 Maximum values .36
6.2.6 Invalid signals .36
6.3 Diagnostic message format .36
6.3.1 Addressing method . .36
6.3.2 Maximum message length .37
6.3.3 Request/Response message format .37
6.3.4 Response code parameter definition .38
6.3.5 Header byte definition of ISO 9141-2, ISO 14230-4, and SAE J1850 .39
6.3.6 Header byte definition of ISO 15765-4 .40
6.3.7 Data bytes definition of ISO 9141-2, ISO 14230-4, SAE J1850, and ISO 15765-4 .40
6.3.8 Non-data bytes included in diagnostic messages with SAE J1850 .40
6.3.9 Non-data bytes included in diagnostic messages with ISO 9141-2 and
ISO 14230-4 .41
6.4 Byte order convention .41
6.5 Allowance for expansion and enhanced diagnostic services .41
6.6 Definition of PIDs for services 01 and 02 .
16 16 41
6.7 Format of data to be displayed .41
7 Diagnostic service definition for ISO 9141-2, ISO 14230-4, and SAE J1850 .42
7.1 Service 01 — Request current powertrain diagnostic data .42
16
7.1.1 Functional description .42
7.1.2 Message data bytes .42
7.1.3 Parameter definition .43
7.1.4 Message example .44
7.2 Service 02 — Request powertrain freeze frame data .47
16
7.2.1 Functional description .47
7.2.2 Message data bytes .48
7.2.3 Parameter definition .49
7.2.4 Message example .49
7.3 Service 03 — Request emission-related diagnostic trouble codes .51
16
7.3.1 Functional description .51
7.3.2 Message data bytes .52
7.3.3 Parameter definition .53
7.3.4 Message example .53
7.4 Service 04 — Clear/reset emission-related diagnostic information .56
16
7.4.1 Functional description .56
7.4.2 Message data bytes .56
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ISO 15031-5:2015(E)

7.4.3 Parameter definition .57
7.4.4 Message example .57
7.5 Service 05 — Request oxygen sensor monitoring test results .58
16
7.5.1 Functional description .58
7.5.2 Message data bytes .58
7.5.3 Parameter definition .59
7.5.4 Message example .61
7.6 Service 06 — Request On-board monitoring test results for specific
16
monitored systems .63
7.6.1 Functional description .63
7.6.2 Message data bytes .64
7.6.3 Parameter definition .65
7.6.4 Message example .66
7.7 Service 07 — Request emission-related diagnostic trouble codes detected
16
during current or last completed driving cycle .68
7.7.1 Functional description .68
7.7.2 Message data bytes .68
7.7.3 Parameter definition .69
7.7.4 Message example .69
7.8 Service 08 — Request control of on-board system, test, or component .69
16
7.8.1 Functional description .69
7.8.2 Message data bytes .69
7.8.3 Parameter definition .71
7.8.4 Message example .71
7.9 Service 09 — Request vehicle information .72
16
7.9.1 Functional description .72
7.9.2 Message data bytes .72
7.9.3 Parameter definition .73
7.9.4 Message example .74
8 Diagnostic service definition for ISO 15765-4 .91
8.1 Service 01 — Request current powertrain diagnostic data .91
16
8.1.1 Functional description .91
8.1.2 Message data bytes .92
8.1.3 Parameter definition .94
8.1.4 Message example .94
8.2 Service 02 — Request powertrain freeze frame data .97
16
8.2.1 Functional description .97
8.2.2 Message data bytes .98
8.2.3 Parameter definition .100
8.2.4 Message example .100
8.3 Service 03 — Request emission-related diagnostic trouble codes .103
16
8.3.1 Functional description .103
8.3.2 Message data bytes .104
8.3.3 Parameter definition .104
8.3.4 Message example .104
8.4 Service 04 — Clear/Reset emission-related diagnostic information .106
16
8.4.1 Functional description .106
8.4.2 Message data bytes .107
8.4.3 Parameter definition .107
8.4.4 Message example .107
8.5 Service 05 — Request oxygen sensor monitoring test results .108
16
8.6 Service 06 — Request on-board monitoring test results for specific
16
monitored systems .108
8.6.1 Functional description .108
8.6.2 Message data bytes .109
8.6.3 Parameter definition .112
8.6.4 Message example .117
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ISO 15031-5:2015(E)

8.7 Service 07 — Request emission-related diagnostic trouble codes detected
16
during current or last completed driving cycle .119
8.7.1 Functional description .119
8.7.2 Message data bytes .120
8.7.3 Parameter definition .120
8.7.4 Message example .120
8.8 Service 08 — Request control of on-board system, test, or component .120
16
8.8.1 Functional description .120
8.8.2 Message data bytes .121
8.8.3 Parameter definition .123
8.8.4 Message example .123
8.9 Service 09 — Request vehicle information .124
16
8.9.1 Functional description .124
8.9.2 Message data bytes .125
8.9.3 Parameter definition .126
8.9.4 Message example .127
8.10 Service 0A — Request emission-related diagnostic trouble codes with
16
permanent status .138
8.10.1 Functional description .138
8.10.2 Message data bytes .139
8.10.3 Parameter definition .139
8.10.4 Message example .139
Bibliography .140
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ISO 15031-5:2015(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 31, Data
communication.
This third edition cancels and replaces the second edition (ISO 15031-5:2011), which has been
technically revised.
ISO 15031 consists of the following parts, under the general title Road vehicles — Communication
between vehicle and external equipment for emissions-related diagnostics:
— Part 1: General information and use case definition
— Part 2: Guidance on terms, definitions, abbreviations and acronyms
— Part 3: Diagnostic connector and related electrical circuits, specification and use
— Part 4: External test equipment
— Part 5: Emissions-related diagnostic services
— Part 6: Diagnostic trouble code definitions
— Part 7: Data link security
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ISO 15031-5:2015(E)

Introduction
Overview
ISO 15031 consists of a number of parts which, taken together, provide a coherent self-consistent set of
specifications to facilitate emissions-related diagnostics. ISO 15031-1 provides an introduction to the
series of International Standards. ISO 15031-2 through ISO 15031-7 are based on SAE recommended
practices. This part of ISO 15031 is based on SAE J1979.
This International Standard includes the communication between the vehicle’s On-Board Diagnostic
(OBD) systems and test equipment implemented across vehicles within the scope of the legislated
emissions-related OBD.
To achieve this, it is based on the Open Systems Interconnection (OSI) Basic Reference Model in
accordance with ISO/IEC 7498-1 and ISO/IEC 10731, which structures communication systems into
seven layers. When mapped on this model, the services specified by this International Standard are
broken into the following layers in accordance with Table 1.
— Diagnostic services (layer 7), specified in the following:
— this part of ISO 15031;
— ISO 27145-3 (WWH-OBD).
— Presentation layer (layer 6), specified in the following:
— ISO 15031-2, SAE J1930-DA;
— this part of ISO 15031, SAE J1979-DA;
— ISO 15031-6, SAE J2012-DA;
— ISO 27145-2, SAE J2012-DA.
— Session layer services (layer 5), specified in the following:
— ISO 14229-2 supports ISO 15765-4 DoCAN and ISO 14230-4 DoK-Line protocols;
— ISO 14229-2 is not applicable to the SAE J1850 and ISO 9141-2 protocols.
— Transport layer services (layer 4), specified in the following:
— ISO 15765-2;
— SAE J1850 defined in this part of ISO 15031;
— ISO 9141-2 defined in this part of ISO 15031;
— ISO 14230-4, defined in this part of ISO 15031.
— Network layer services (layer 3), specified in the following:
— ISO 15765-2;
— SAE J1850 defined in this part of ISO 15031;
— ISO 9141-2 defined in this part of ISO 15031;
— ISO 14230-4 defined in this part of ISO 15031.
— Data link layer (layer 2), specified in the following:
— ISO 15765-4, ISO 11898-1, and ISO 11898-2;
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ISO 15031-5:2015(E)

— SAE J1850;
— ISO 9141-2;
— ISO 14230-2.
— Physical layer (layer 1), specified in the following:
— ISO 15765-4, ISO 11898-1, and ISO 11898-2;
— SAE J1850;
— ISO 9141-2;
— ISO 14230-1.
a
Table 1 — Legislated emissions-related OBD/WWH-OBD diagnostic specifications applicable
to the OSI layers
Emissions-related OBD communication Emissions-related WWH-OBD
Applicability OSI 7 layers
requirements communication requirements
Application
ISO 15031-5/SAE J1979 ISO 27145-3
(layer 7)
ISO 15031-2, ISO 15031-5, ISO 15031-6 ISO 27145-2
Presentation
SAE J1930-DA, SAE J1979-DA,
(layer 6)
SAE J1930-DA, SAE J1979-DA, SAE J2012-DA
SAE J2012-DA
Seven layers
Session
according to
Not applicable ISO 14229-2
(layer 5)
ISO/IEC
7498-1
Transport
and
(layer 4)
ISO ISO ISO ISO
ISO/IEC
ISO 15031-5
14230-4 15765-2 15765-2 13400-2
Network
10731
(layer 3)
ISO ISO
15765-4 15765-4
Data link ISO
ISO ISO
(layer 2) 14230-2
SAE ISO 11898-1, 11898-1, ISO
J1850 9141-2 ISO ISO 13400-3
Physical ISO
11898-2 11898-2
(layer 1) 14230-1
a
World-Wide Harmonized.
SAE document reference concept
ISO 15031 references several SAE documents which contain all terms, data, and DTC (diagnostic trouble
code) definitions. This is illustrated in Figure 1.
Additional information on the content of the referenced documents is given below:
— SAE J1930: the document is concerned with a procedure for naming objects and systems and
with the set of words from which names are built. It references SAE J1930-DA which contains all
standardized naming objects, terms, and abbreviations.
— SAE J1979: the docume
...