Road vehicles -- Implementation of World-Wide Harmonized On-Board Diagnostics (WWH-OBD) communication requirements

ISO 27145-6:2015 defines the requirements for the external test equipment as listed: - a means of establishing communications between a WWH-OBD-equipped vehicle and external test equipment; - a set of diagnostic services, including addressing methods, to be provided by the external test equipment in order to exercise the services defined in ISO 27145‑3. ISO 27145-6:2015 describes the minimum capabilities or functions in the external test equipment. Additional functionality, e.g. non WWH-OBD protocols or retrieval of repair and maintenance information, can be integrated into the external test equipment according to the test equipment manufacturer needs. The external test equipment designer ensures that no such capability or function can adversely affect either a WWH-OBD-equipped vehicle connected to the equipment, or the equipment itself. When the external test equipment implements functionality, which is not covered by ISO 27145‑3, this functionality is not linked to the timing requirements defined in this International Standard.

Véhicules routiers -- Mise en application des exigences de communication pour le diagnostic embarqué harmonisé à l'échelle mondiale (WWH-OBD)

General Information

Status
Published
Publication Date
01-Apr-2015
Current Stage
9060 - Close of review
Start Date
03-Sep-2020
Ref Project

Buy Standard

Standard
ISO 27145-6:2015 - Road vehicles -- Implementation of World-Wide Harmonized On-Board Diagnostics (WWH-OBD) communication requirements
English language
32 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

INTERNATIONAL ISO
STANDARD 27145-6
First edition
2015-04-01
Road vehicles — Implementation
of World-Wide Harmonized On-
Board Diagnostics (WWH-OBD)
communication requirements —
Part 6:
External test equipment
Véhicules routiers — Mise en application des exigences de
communication pour le diagnostic embarqué harmonisé à l’échelle
mondiale (WWH-OBD) —
Partie 6: Équipement d’essai externe
Reference number
ISO 27145-6:2015(E)
ISO 2015
---------------------- Page: 1 ----------------------
ISO 27145-6:2015(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2015

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.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2015 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 27145-6:2015(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms, definitions, symbols, and abbreviated terms ..................................................................................................... 2

3.1 Terms and definitions ....................................................................................................................................................................... 2

3.2 Abbreviated terms ............................................................................................................................................................................... 2

4 Conventions ............................................................................................................................................................................................................... 3

5 Document overview........................................................................................................................................................................................... 3

6 Requirements overview and principles ....................................................................................................................................... 5

6.1 Basic principles for the graphical notation..................................................................................................................... 5

6.2 Requirements clustering ................................................................................................................................................................ 5

6.2.1 Overview ................................................................................................................................................................................. 5

6.2.2 Main requirements clusters ................................................................................................................................... 5

7 External test equipment requirements ........................................................................................................................................ 7

7.1 General ........................................................................................................................................................................................................... 7

7.2 Applicability of requirements according to local legislation ......... .................................................................. 8

7.3 User instructions and guidelines ............................................................................................................................................. 8

7.4 Cluster “Mechanical requirements” ...................................................................................................................................... 8

7.5 Cluster “Electrical requirements” ........................................................................................................................................... 9

7.6 Cluster “Communication setup” and connections .................................................................................................... 9

7.6.1 Connections .......................................................................................................................................................................... 9

7.6.2 Communication setup ..............................................................................................................................................10

7.7 Cluster “Diagnostic messages” ...............................................................................................................................................12

7.7.1 Overview ..............................................................................................................................................................................12

7.7.2 Timing ....................................................................................................................................................................................12

7.7.3 Negative response handling ................................................................................................................................12

7.7.4 Error handling of no response from the vehicle ................................................................................14

7.7.5 Setup of ECU list ............................................................................................................................................................15

7.7.6 Setting up ECU communication list ..............................................................................................................16

7.7.7 Setting up data information list .......................................................................................................................16

7.7.8 Reading DTCs ...................................................................................................................................................................17

7.7.9 Setting up DTC information list ........................................................................................................................17

7.7.10 Clear diagnostic information ..............................................................................................................................22

7.7.11 Continuously reading ECU data .......................................................................................................................22

8 Roadside inspection test equipment ............................................................................................................................................23

8.1 Definition ..................................................................................................................................................................................................23

8.2 Related use cases................................................................................................................................................................................23

8.3 Implementation requirements ...............................................................................................................................................24

8.3.1 Overview ..............................................................................................................................................................................24

8.3.2 Application layer ...........................................................................................................................................................24

9 Inspection and maintenance (I/M) test equipment ......................................................................................................25

9.1 Definition ..................................................................................................................................................................................................25

9.2 Related use cases................................................................................................................................................................................25

9.3 Implementation requirements ...............................................................................................................................................25

9.3.1 General...................................................................................................................................................................................25

9.3.2 Application layer ...........................................................................................................................................................25

10 Repair shop test equipment ..................................................................................................................................................................27

10.1 Definition ..................................................................................................................................................................................................27

10.2 Related use cases................................................................................................................................................................................27

© ISO 2015 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO 27145-6:2015(E)

10.3 Implementation requirements ...............................................................................................................................................27

10.3.1 Overview ..............................................................................................................................................................................27

10.3.2 Application layer ...........................................................................................................................................................28

11 Multiple test equipment communication ................................................................................................................................31

11.1 General ........................................................................................................................................................................................................31

11.2 Behaviour of external test equipment .............................................................................................................................31

Bibliography .............................................................................................................................................................................................................................32

iv © ISO 2015 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 27145-6:2015(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 3, Electrical

and electronic equipment.

ISO 27145 consists of the following parts, under the general title Road vehicles — Implementation of

Word-Wide Harmonized On-Board Diagnostics (WWH-OBD) communication requirements:
— Part 1: General information and use case definition
— Part 2: Common data dictionary
— Part 3: Common message dictionary
— Part 4: Connection between vehicle and test equipment
— Part 6: External test equipment
© ISO 2015 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO 27145-6:2015(E)
Introduction
Overview

This International Standard includes the communication between the vehicle’s on-board diagnostics

(OBD) systems and external test equipment within the scope of the World-Wide Harmonized On-Board

Diagnostics Global Technical Regulations (WWH-OBD GTR).

This International Standard has been established in order to apply the unified diagnostic services

(specified in ISO 14229-1) to WWH-OBD systems.

This International Standard includes the communication between the vehicle’s WWH-OBD systems

and external (off-board) “generic” test equipment within the scope of the country-specific regulatory

requirements.

To achieve this, it is based on the Open Systems Interconnection (OSI) Basic Reference Model specified in

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:

— diagnostic services (layer 7), specified in ISO 27145-3 with reference to ISO 14229-1,

— presentation layer (layer 6), specified in ISO 27145-2 with reference to SAE J1930-DA, SAE J1939-

DA, SAE J1939-73, Appendix A (FMIs), SAE J1979-DA, and SAE J2012-DA,
— session layer services (layer 5), specified in ISO 14229-2,

— transport layer services (layer 4), specified in ISO 27145-4 with reference to ISO 13400-2,

ISO 15765-2, and ISO 15765-4,

— network layer services (layer 3), specified in ISO 27145-4 with reference to ISO 13400-2, ISO 15765-2,

and ISO 15765-4,

— data link layer (layer 2), specified in ISO 27145-4 with reference to ISO 11898-1, ISO 11898-2,

ISO 13400-3, ISO 15765-4, and IEEE 802.3, and

— physical layer (layer 1), specified in ISO 27145-4 with reference to ISO 11898-1, ISO 11898-2,

ISO 13400-3, ISO 15765-4, and IEEE 802.3,
in accordance with Table 1.
Table 1 — WWH-OBD specification reference applicable to the OSI layers
Applicability OSI seven layer WWH-OBD document reference
Application (layer 7) ISO 14229-1, 3
ISO
Presentation (layer 6) ISO 27145-2,
27145
SAE J1930-DA, SAE J1939-DA, SAE J1939-73, Appendix A (FMIs),
SAE J1979-DA, SAE J2012-DA
Seven layer
Session (layer 5) ISO 14229-2
according to ISO/
IEC 7498-1 and
Transport (layer 4)
ISO 15765-2 DoCAN, ISO 13400-2 DoIP
ISO/IEC 10731
ISO 15765-4 DoCAN TCP and IP
Network (layer 3)
ISO 27145-4
Data link (layer 2) ISO 11898-1 CAN DLL,
ISO 13400-3 DoIP,
ISO 11898-2 CAN HS,
IEEE 802.3
Physical (layer 1)
ISO 15765-4 DoCAN
SAE document reference concept

This International Standard references several SAE documents which contain all terms, data and

diagnostic trouble code (DTC) definitions.
vi © ISO 2015 – All rights reserved
---------------------- Page: 6 ----------------------
ISO 27145-6:2015(E)

ISO 27145-2 defines a common data dictionary for this International Standard, according to the

definitions in the following documents (Figure 1):

— SAE J1930-DA: this digital annex contains all standardized naming objects, terms, and

abbreviated terms;

— SAE J1939-DA and SAE J1939-73: The Digital Annex indexes names for suspect parameter numbers

(SPNs) that provide an alternative presentation format for SAE J2012-DA DTCs. SPNs are combined

with failure mode indicators (FMIs) to form the full alternative presentation. These FMIs are

described in SAE J1939-73, Appendix A;

— SAE J1979-DA: this digital annex contains all standardized data items such as data identifiers (DIDs),

test identifiers (TIDs), monitor identifiers (MIDs), and infotype identifiers (ITIDs);

— SAE J2012-DA: this digital annex contains all standardized data items such as DTC definitions and

FTB (failure type byte) definitions.
Key
1 SAE digital annexes: data definitions
2 SAE J1939 series of documents: DTC definitions
Figure 1 — SAE digital annex document reference
© ISO 2015 – All rights reserved vii
---------------------- Page: 7 ----------------------
INTERNATIONAL STANDARD ISO 27145-6:2015(E)
Road vehicles — Implementation of World-Wide
Harmonized On-Board Diagnostics (WWH-OBD)
communication requirements —
Part 6:
External test equipment
1 Scope

This part of ISO 27145 defines the requirements for the external test equipment as listed:

— a means of establishing communications between a WWH-OBD-equipped vehicle and external

test equipment;

— a set of diagnostic services, including addressing methods, to be provided by the external test

equipment in order to exercise the services defined in ISO 27145-3.

This part of ISO 27145 describes the minimum capabilities or functions in the external test equipment.

Additional functionality, e.g. non WWH-OBD protocols or retrieval of repair and maintenance information,

can be integrated into the external test equipment according to the test equipment manufacturer needs.

The external test equipment designer ensures that no such capability or function can adversely affect

either a WWH-OBD-equipped vehicle connected to the equipment, or the equipment itself.

When the external test equipment implements functionality, which is not covered by ISO 27145-3, this

functionality is not linked to the timing requirements defined in this International Standard.

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are

indispensable for its application. For dated references, only the edition cited applies. For undated

references, the latest edition of the referenced document (including any amendments) applies.

ISO 7637-2:2011, Road vehicles — Electrical disturbances from conduction and coupling — Part 2: Electrical

transient conduction along supply lines only

ISO 13400 (all parts), Road vehicles - Diagnostic communication over Internet Protocol (DoIP)

ISO 14229-1, Road vehicles — Unified diagnostic services (UDS) — Part 1: Specification and requirements

ISO 14229-2, Road vehicles — Unified diagnostic services (UDS) — Part 2: Session layer services

ISO 15031-3, Road vehicles — Communication between vehicle and external equipment for emissions-related

diagnostics — Part 3: Diagnostic connector and related electrical circuits, specification and use

ISO 15765-4, Road vehicles — Diagnostic communication over Controller Area Network (DoCAN) — Part 4:

Requirements for emissions-related systems

ISO 16750-2:2010, Road vehicles — Environmental conditions and testing for electrical and electronic

equipment — Part 2: Electrical loads

ISO 27145-1:2012, Road vehicles — Implementation of World-Wide Harmonized On-Board Diagnostics

(WWH-OBD) communication requirements — Part 1: General information and use case definition

© ISO 2015 – All rights reserved 1
---------------------- Page: 8 ----------------------
ISO 27145-6:2015(E)

ISO 27145-2:2012, Road vehicles — Implementation of World-Wide Harmonized On-Board Diagnostics

(WWH-OBD) communication requirements — Part 2: Common data dictionary

ISO 27145-3:2012, Road vehicles — Implementation of World-Wide Harmonized On-Board Diagnostics

(WWH-OBD) communication requirements — Part 3: Common message dictionary

ISO 27145-4:2012, Road vehicles — Implementation of World-Wide Harmonized On-Board Diagnostics

(WWH-OBD) communication requirements — Part 4: Connection between vehicle and test equipment

SAE J1930-DA, Digital Annex, Electrical/Electronic Systems Diagnostic Terms, Definitions, Abbreviations,

and Acronyms
SAE J1939, Companion Spreadsheet (CS 1939)

SAE J1939-73, Recommended Practice for a Serial Control and Communication Vehicle Network —

Application layer — Diagnostics
SAE J1979-DA, Digital Annex, E/E Diagnostic Test Modes
SAE J2012-DA, Digital Annex, Diagnostic Trouble Code Definitions
3 Terms, definitions, symbols, and abbreviated terms
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 27145-1, ISO 27145-2,

ISO 14229-1, and the following apply:
3.2 Abbreviated terms
CALID calibration identification
CAN Controller Area Network
DoCAN Diagnostics over CAN
DoIP Diagnostics over IP
DTC Diagnostic Trouble Code
EMC electromagnetic compatibility
ESD electrostatic discharge
ETEREC external test equipment recommendation
ETEREQ external test equipment requirement
GTR Global Technical Regulations
HMI Human-Machine Interface
IP Internet Protocol
IUPR In Use (Monitor) Performance Ratio
MVCI Modular Vehicle Communication Interface
MI Malfunction Indication
2 © ISO 2015 – All rights reserved
---------------------- Page: 9 ----------------------
ISO 27145-6:2015(E)
MIL Malfunction Indication Lamp
NRC Negative Response Code
ODX Open Diagnostic data eXchange
4 Conventions

This International Standard is based on the conventions discussed in the OSI Service Conventions

(ISO/IEC 10731) as they apply to diagnostic services.
5 Document overview
Figure 2 shows the reference documents for this International Standard.
This International Standard specifies the following references:

a) ISO 27145-1 specifies the general structure of this International Standard and the use cases

applicable to WWH-OBD GTR;

b) ISO 27145-2 specifies the common data dictionary with references to the following:

1) SAE J1930-DA, which defines the terms, definitions, abbreviated terms, etc.;

2) SAE J1939-DA contains all SPNs (parameters), PGNs (messages), and other SAE J1939 data

previously published in the SAE J1939 top level document;

NOTE The SAE J1939 series of documents is concerned with the definition of emissions-related SPNs and

FMIs for use as DTCs.
3) SAE J1939-73, Appendix A, which specifies the FMIs;
4) SAE 1979-DA, which specifies all data items;

5) SAE J2012-DA, which specifies the DTC definitions and failure type byte definitions.

c) This part of ISO 27145 specifies the diagnostic services defined in ISO 14229-1 that are applicable

to WWH-OBD GTR;

d) ISO 14229-2 specifies the standardized service primitive interface to separate application and

session layers from protocol transport and network layers;

e) ISO 27145-4 specifies the initialization procedure and includes references to:

1) ISO 15765-4 DoCAN;
2) ISO 13400 (all parts) DoIP.
© ISO 2015 – All rights reserved 3
---------------------- Page: 10 ----------------------
ISO 27145-6:2015(E)
Key
1 The standardized service primitive interface is specified in ISO 14229-2.
Figure 2 — Reference documents for implementation of WWH-OBDonCAN
and WWH-OBDonIP according to the OSI model
4 © ISO 2015 – All rights reserved
---------------------- Page: 11 ----------------------
ISO 27145-6:2015(E)
6 Requirements overview and principles
6.1 Basic principles for the graphical notation

The flow graphs show the behaviour of the external test equipment. Hierarchical references e.g. are

shown using round edged transparent rectangles. Figure 3 shows the notation semantics.

Figure 3 — Flow graph notation semantics used in this document
6.2 Requirements clustering
6.2.1 Overview

Each requirement in this part of ISO 27145 is assigned to one requirements cluster. The clusters cover

technical areas where the assigned requirements apply for.

Table 2 lists the technical requirements clusters. The table provides an overview of all requirements

clusters and the associated technical requirements. This list is a summary of the requirements included

in this part of ISO 27145.

Each technical requirement is identified by the mnemonic “ETEREQ-” and an alpha-numeric number.

In addition, the alpha-numeric number includes the requirement cluster classifier according to Table 2.

Recommendations intended to guide the implementation are identified by the mnemonic “ETEREC-”,

which is shown in italic style for differentiation.
6.2.2 Main requirements clusters

Table 2 provides an overview of the main clusters of external test equipment requirements. A requirement

cluster has at least one requirement and optional recommendations.
© ISO 2015 – All rights reserved 5
---------------------- Page: 12 ----------------------
ISO 27145-6:2015(E)
Table 2 — Main requirements clusters
# Main title of Classifier Brief description Related
cluster requirements
1 Mechanical M Requirements to mechanically connect the external ETEREQ-M01,
requirements test equipment
ETEREQ-M02,
ETEREQ-M03,
ETEREQ-M04,
ETEREQ-M05,
ETEREQ-M06
2 Electrical E Electrical hardware related requirements and recom- ETEREQ-E01,
requirements mendations
ETEREC-E02,
ETEREQ-E03,
ETEREQ-E04,
ETEREQ-E05

3 Communication S Automatic hands-off determination of the communica- ETEREQ-S01,

setup and session tion interface
ETEREQ-S02,
— Hands-free DoCAN protocol initialization
ETEREC-S03,
— Hands-free DoIP protocol initialization
ETEREQ-S04,
and setup initialization.
ETEREQ-S05,
ETEREQ-S06,
ETEREQ-S07,
ETEREQ-S08,
ETEREQ-S09,
ETEREQ-S10,
ETEREQ-S11
4 Diagnostic D Requirements and recommendations related to the ETEREQ-D01,
messages diagnostic messages, like addressing information,
ETEREQ-D02,
sequences, dependencies
ETEREC-D03,
ETEREQ-D04,
ETEREQ-D05,
ETEREQ-D06,
ETEREQ-D07,
ETEREQ-D08
6 © ISO 2015 – All rights reserved
---------------------- Page: 13 ----------------------
ISO 27145-6:2015(E)
Table 2 (continued)
# Main title of Classifier Brief description Related
cluster requirements
ETEREQ-D09,
ETEREQ-D10,
ETEREQ-D11,
ETEREQ-D12,
ETEREQ-D13,
ETEREQ-D14,
ETEREQ-D15,
ETEREQ-D16,
ETEREQ-D17,
ETEREQ-D18,
ETEREQ-D19,
ETEREQ-D20,
ETEREQ-D21,
ETEREQ-D22,
ETEREQ-D23,
ETEREQ-D24,
ETEREQ-D25,
ETEREQ-D26,
ETEREQ-D27,
ETEREQ-D28,
ETEREQ-D29,
ETEREQ-D30,
ETEREQ-D31
5 Error handling F Requirements to have a proper communication error ETEREQ-F01,
handling
ETEREQ-F02,
ETEREQ-F03,
ETEREQ-F04

6 Use case specific U Requirements only related to specific use cases. ETEREQ-U01,

requirements
ETEREQ-U02,
ETEREQ-U03,
ETEREQ-U04,
ETEREC-U05,
ETEREQ-U06
7 External test equipment requirements
7.1 General

This clause specifies all requirements which are applicable to the external test equipment. The

Introduction, Clause 9, and Clause 10 (respectively use cases 1, 2, and 3 as specified in ISO 27145-1)

include references to the requirements stated in this clause. The term ‘external test equipment’ addresses

© ISO 2015 – All rights reserved 7
---------------------- Page: 14 ----------------------
ISO 27145-6:2015(E)

all equipment that will be used in compliance with the use cases stated in this part of ISO 27145, e.g. a

repair shop external test equipment or an installed diagnostic data recorder. As the test equipment is

to be used for legislated OBD, it can be mounted in the car and attached to the OBD diagnostic interface,

but not integrated into the internal network.
Figure 4 — General behaviour of external test equipment
7.2 Applicability of requirements according to local legislation

This part of ISO 27145 is based on the requirements established by the GTR #5, only. Local legislation

can require additional data to be supported for each use case as specified in this part of ISO 27145. The

additional data are defined in SAE J1979-DA.
7.3 User instructions and guidelines

ETEREQ-M01 If the chosen connector supports detection of ignition/run status, the external test

equipment shall verify that ignition is active before starting any action.

ETEREQ-M02 If the chosen connector does not support the detection of ignition/run status, the

external test equipment shall ask the user to confirm ignition/run status active
before starting any action.
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.