ISO 14229-4:2012

Road vehicles — Unified diagnostic services (UDS) — Part 4: Unified diagnostic services on FlexRay implementation (UDSonFR)

ISO 14229-4:2012 specifies the implementation of a common set of unified diagnostic services (UDS) on FlexRay networks (FR) in road vehicles (UDSonFR). UDSonFR references ISO 14229-1 and ISO 14229-2 and specifies implementation requirements of the diagnostic services to be used for diagnostic communication over FlexRay. UDSonFR does not specify any requirements of the in-vehicle FlexRay architecture. ISO 14229-4:2012 focuses on additional requirements specific to the implementation of UDS on the FlexRay network, and specific restrictions in the implementation of UDS on the FlexRay network.

Véhicules routiers — Services de diagnostic unifiés (SDU) — Partie 4: SDU sur l'implémentation FlexRay (SDUsurFR)

General Information

• Status: Published
• Publication Date: 29-Nov-2012
• ICS: 43.180 - Diagnostic, maintenance and test 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
• Start Date: 02-Jul-2025
• Completion Date: 05-Jul-2025

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 14229-4
First edition
2012-12-01
Road vehicles — Unified diagnostic
services (UDS) —
Part 4:
Unified diagnostic services on FlexRay
implementation (UDSonFR)
Véhicules routiers — Services de diagnostic unifiés (SDU) —
Partie 4: SDU sur l’implémentation FlexRay (SDUsurFR)
Reference number
©
ISO 2012
© ISO 2012
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any
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Published in Switzerland
ii © ISO 2012 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 1
4 Conventions . 2
5 Document overview. 2
6 Unified diagnostic services implementation on FlexRay . 4
6.1 General . 4
6.2 UDS on FlexRay services overview . 4
6.3 CommunicationControl (0x28) service . 5
6.4 ResponseOnEvent (0x86) service . 5
6.5 LinkControl (0x87) service . 7
6.6 ReadDataByPeriodicIdentifier (0x2A) service . 8
7 Application layer requirements .14
7.1 Application layer services .14
7.2 Application layer protocol .14
7.3 Application layer timing.14
8 Presentation layer requirements .14
9 Session layer requirements .14
10 Transport/Network layer interface adaptation .14
10.1 General information .14
10.2 DoFR Transport/Network layer interface adaptation .14
11 Data Link layer diagnostic implementation requirements .15
Bibliography
.............................................................................................................................................................................................................................16
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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 14229-4 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 3,
Electrical and electronic equipment.
ISO 14229 consists of the following parts, under the general title Road vehicles — Unified diagnostic
services (UDS):
— Part 1: Specification and requirements
— Part 2: Session layer services
— Part 3: Unified diagnostic services on CAN implementation (UDSonCAN)
— Part 4: Unified diagnostic services on FlexRay implementation (UDSonFR)
— Part 5: Unified diagnostic services on Internet Protocol implementation (UDSonIP)
— Part 6: Unified diagnostic services on K-Line implementation (UDSonK-Line)
The following parts are under preparation / are planned:
— Part 7: Unified diagnostic services on Local Interconnet Network implementation (UDSonLIN)
iv © ISO 2012 – All rights reserved

Introduction
This part of ISO 14229 has been established in order to enable the implementation of unified diagnostic
services, as specified in ISO 14229-4, on FlexRay (UDSonFR).
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 ISO 14229 are divided into:
— Application layer (layer 7):
— Vehicle manufacturer enhanced diagnostics: ISO 14229-1, ISO 14229-4,
— Legislated OBD: ISO 15031-5,
— Legislated WWH-OBD: ISO 14229-1 / ISO 27145-3;
— Presentation layer (layer 6):
— Vehicle manufacturer enhanced diagnostics: vehicle manufacturer specific,
— Legislated OBD: SAE J1930-DA, SAE J1979-DA, SAE J2012-DA,
— Legislated WWH-OBD: ISO 27145-2 with reference to SAE J1930-DA, SAE J1939, Companion
Spreadsheet (SPNs), SAE J1939-73:2010, Appendix A (FMIs), SAE J1979-DA and SAE J2012-DA;
— Session layer services (layer 5):
— Vehicle manufacturer enhanced diagnostics: ISO 14229-2,
— Legislated OBD: ISO 14229-2,
— Legislated WWH-OBD: ISO 14229-2;
— Transport layer services (layer 4):
— Vehicle manufacturer enhanced diagnostics: ISO 10681-2,
— Legislated OBD: ISO 10681-2, ISO 15765-4
— Legislated WWH-OBD: ISO 27145-4;
— Network layer services (layer 3):
— Vehicle manufacturer enhanced diagnostics: ISO 10681-2,
— Legislated OBD: ISO 15765-2, ISO 15765-4
— Legislated WWH-OBD: ISO 27145-4;
— Data link layer (layer 2):
— Vehicle manufacturer enhanced diagnostics: ISO 17458-2,
— Legislated OBD: ISO 11898-1, ISO 11898-2, ISO 15765-4,
— Legislated WWH-OBD: ISO 27145-4;
— Physical layer (layer 3):
— Vehicle manufacturer enhanced diagnostics: ISO 17458-4,
— Legislated OBD: ISO 11898-1, ISO 11898-2, ISO 15765-4,
— Legislated WWH-OBD: ISO 27145-4;
in accordance with Table 1.
Table 1 — DoFR enhanced diagnostics, legislated OBD and WWH-OBD specification reference
applicable to the OSI layers
Vehicle man- Legislated
ufacturer OBD Legislated WWH-OBD
Applicability OSI 7 layers
enhanced (On-Board (On-Board Diagnostics)
diagnostics Diagnostics)
Application ISO 14229-1/
ISO 15031-5 ISO 14229-1/ISO 27145-3
(layer 7) ISO 14229-4
ISO 27145-2
Presenta- Vehicle SAE J1930-DA, SAE J1930-DA, SAE J1939 Companion Spreadsheet
tion (layer manufacturer SAE J1979-DA, (SPNs),
6) specific SAE J2012-DA SAE J1939-73:2010, Appendix A (FMIs),
SAE J1979-DA, SAE J2012-DA
Seven layer
accord-
Session
ISO 14229-2
ing to ISO/
(layer 5)
IEC 7498-1
Transport
and ISO/
(layer 4)
ISO 15765-2, ISO 15765-2,
IEC 10731
ISO 10681-2 ISO 13400-2
ISO 15765-4 ISO 15765-4
Network
(layer 3)
ISO 27145-4
Data link
ISO 17458-2
ISO 11898-1, ISO 11898-1,
(layer 2)
ISO 13400-3,
ISO 11898-2, ISO 11898-2,
IEEE 802.3
Physical
ISO 15765-4 ISO 15765-4
ISO 17458-4
(layer 1)
vi © ISO 2012 – All rights reserved

INTERNATIONAL STANDARD ISO 14229-4:2012(E)
Road vehicles — Unified diagnostic services (UDS) —
Part 4:
Unified diagnostic services on FlexRay implementation
(UDSonFR)
1 Scope
This part of ISO 14229 specifies the implementation of a common set of unified diagnostic services
(UDS) on FlexRay networks (FR) in road vehicles (UDSonFR).
UDSonFR references ISO 14229-1 and ISO 14229-2 and specifies implementation requirements of the
diagnostic services to be used for diagnostic communication over FlexRay.
NOTE UDSonFR does not specify any requirements of the in-vehicle FlexRay architecture.
This part of ISO 14229 does not include any redundant information of the documents as listed in the
introduction. It focuses on
— additional requirements specific to the implementation of UDS on the FlexRay network, and
— specific restrictions in the implementation of UDS on the FlexRay network.
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 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 10681-2, Road vehicles — Communication on FlexRay — Part 2: Communication layer services
ISO 17458-2, Road vehicles — FlexRay Communication Systems — Protocol specification
ISO 17458-4, FlexRay Communication Systems — Electrical physical layer specification
3 Terms, definitions and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 14229-1, ISO 14229-2, and
ISO 10681-2 apply.
3.2 Abbreviated terms
CF consecutive frame
DoFR diagnostic communication over FlexRay
FC flow control
FR FlexRay
ISO International Standardization Organization
LF last frame
OSI Open System Interconnection
Rx reception
SA source address
SID service identifier
SM subnet mask
SOM start of message
STF start frame
STRT serviceToRespondTo
TA target address
UDS unified diagnostic services
Tx transmission
UDSonFR Unified Diagnostic Services (UDS) on FlexRay
4 Conventions
This part of ISO 14229 is based on the conventions discussed in the OSI Service Conventions
(ISO/IEC 10731:1994) as they apply for diagnostic services.
5 Document overview
Figure 1 illustrates the document references from ISO 14229-1, ISO 14229-2 and ISO 10681-1 and
ISO 10681-2. ISO 14229-4 uses only a subset of the diagnostic services defined in ISO 14229-1 (see Table 2).
2 © ISO 2012 – All rights reserved

Uniied Diagnostic Services (UDS)
subset
ISO 14229-4
ISO 14229-1 UDS
UDS
OSI Layer 7 speciication and
Part 4:
Application requirements
UDSonFR
OSI Layer 6 vehicle manufacturer speciic
Presentation
OSI Layer 5 ISO 14229-2 UDS
Session session layer services
Standardized Service Primitive Interface
FlexRay
ISO 14229-4 UDS –
UDSonFlexRay
implementation
OSI Layer 4
ISO 10681-2 CoFlexRay
Transport
Part2:
Transport
and
network
layer
...