ISO 14229-6:2013

INTERNATIONAL ISO
STANDARD 14229-6
First edition
2013-03-15
Road vehicles — Unified diagnostic
services (UDS) —
Part 6:
Unified diagnostic services on K-Line
implementation (UDSonK-Line)
Véhicules routiers — Services de diagnostic unifiés (SDU) —
Partie 6: SDU sur l’implémentation de la ligne-K (SDUsurLigne-K)
Reference number
©
ISO 2013
© ISO 2013
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ii © ISO 2013 – 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 . 2
4 Conventions . 2
5 Document overview. 2
6 Unified diagnostic services implementation on K-Line . 4
6.1 General . 4
6.2 UDSonK-Line services overview . 4
6.3 Diagnostic and communication control functional unit . 5
6.4 Data transmission functional unit . 6
7 Application layer requirements . 6
7.1 Application layer services . 6
7.2 Application layer protocol . 6
7.3 Application layer timing. 6
8 Presentation layer requirements . 7
9 Session layer requirements . 7
10 Transport/network layer interface adaptation . 7
10.1 General information . 7
10.2 DoK-Line transport/network layer interface adaptation . 7
11 Data link layer diagnostic implementation requirements . 8
11.1 General information . 8
11.2 Data segmentation . 8
11.3 Session handling . 8
11.4 Timings . 9
11.5 Protocol initialization, start and stop of communication . 9
11.6 Error handling . 9
12 Non-volatile server memory programming process . 9
Bibliography .10
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. 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. 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.
The committee responsible for this document is 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 part is under preparation:
— Part 7: Unified diagnostic services on Local Interconnet Network implementation (UDSonLIN)
The titles of future parts will be drafted as follows:
— Part n: Unified diagnostic services on … implementation (UDSon…)
iv © ISO 2013 – 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 14229-1, on K-Line (UART based) networks (UDSonK-Line).
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), specified in:
— Vehicle manufacturer enhanced diagnostics: ISO 14229-1 / ISO 14229-6,
— Legislated OBD: ISO°15031-5,
— Legislated WWH-OBD: ISO 14229-1, ISO 27145-3;
— Presentation layer (layer 6), specified in:
— Vehicle manufacturer enhanced diagnostics: not applicable,
— 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), specified in:
— Vehicle manufacturer enhanced diagnostics: ISO 14229-2,
— Legislated OBD: ISO 14229-2,
— Legislated WWH-OBD: ISO 14229-2;
— Transport layer services (layer 4), specified in:
— Vehicle manufacturer enhanced diagnostics: ISO 14230-2,
— Legislated OBD: ISO 15765-2, ISO 15765-4,
— Legislated WWH-OBD: ISO 27145-4;
— Network layer services (layer 3), specified in:
— Vehicle manufacturer enhanced diagnostics: ISO 14230-2,
— Legislated OBD: ISO 15765-2, ISO 15765-4,
— Legislated WWH-OBD: ISO 27145-4;
— Data link layer (layer 2), specified in:
— Vehicle manufacturer enhanced diagnostics: ISO 14230-2,
— Legislated OBD: ISO 11898-1, ISO 11898-2, ISO 15765-4,
— Legislated WWH-OBD: ISO 27145-4;
— Physical layer (layer 1), specified in:
— Vehicle manufacturer enhanced diagnostics: ISO 14230-1,
— Legislated OBD: ISO 11898-1, ISO 11898-2, ISO 15765-4,
— Legislated WWH-OBD: ISO 27145-4;
in accordance with Table 1.
Table 1 — DoK-Line enhanced diagnostics, legislated OBD and WWH-OBD specification
reference applicable to the OSI layers
Vehicle
manufacturer
Applicability OSI 7 layers Legislated OBD Legislated WWH-OBD
enhanced diag-
nostics
Application ISO 14229-1 /
ISO 15031-5 ISO 14229-1 / ISO 27145-3
(layer 7) ISO 14229-6
ISO 27145-2, SAE J1930-DA, SAE J1939
SAE J1930-DA /
Presentation Vehicle manufac- Companion Spreadsheet (SPNs), SAE J1939-
SAE J1979-DA /
(layer 6) turer specific 73:2010, Appendix A (FMIs), SAE J1979-DA,
SAE J2012-DA
SAE J2012-DA
Seven layer
Session
according to ISO 14229-2
(layer 5)
ISO/IEC 7498-1
Transport
and
(layer 4)
ISO 15765-2, ISO 15765-2,
ISO 14230-2 ISO 13400-2
ISO/IEC 10731
ISO 15765-4 ISO 15765-4
Network
(layer 3)
ISO 27145-4
Data link
ISO 11898-1, ISO 11898-1,
(layer 2)
ISO 13400-3,
ISO 14230-1 ISO 11898-2, ISO 11898-2,
IEEE 802.3
Physical
ISO 15765-4 ISO 15765-4
(layer 1)
vi © ISO 2013 – All rights reserved

INTERNATIONAL STANDARD ISO 14229-6:2013(E)
Road vehicles — Unified diagnostic services (UDS) —
Part 6:
Unified diagnostic services on K-Line implementation
(UDSonK-Line)
1 Scope
This part of ISO 14229 specifies the implementation of a common set of unified diagnostic services
(UDS) on K-Line (UART based) in road vehicles (UDSonK-Line).
UDSonK-Line references ISO 14229-1 and ISO 14229-2, and specifies implementation requirements of
— the diagnostic services to be used for diagnostic communication over K-Line,
— the server memory programming for all in-vehicle servers connected to a K-Line network with
external test equipment.
NOTE UDSonK-Line does not specify any requirement for the in-vehicle K-Line bus architecture.
This part of ISO°14229 makes reference to information contained in ISO 14229-1, ISO 14229-2,
ISO 14230-1, and ISO 14230-2.
This part of ISO 14229 does not include any redundant information of the above-mentioned documents.
It focuses on
— additional requirements specific to the implementation of UDSonK-Line network, and
— specific restrictions in the implementation of UDSonK-Line 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 14230-1, Road vehicles — Diagnostic communication over K-Line (DoK-Line) — Part 1: Physical layer
ISO 14230-2, Road vehicles — Diagnostic communication over K-Line (DoK-Line) — Part 2: Data link layer
ISO 14230-4, Road vehicles — Diagnostic systems — Keyword Protocol 2000 — Part 4: Requirements for
emission-related systems
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,
ISO 14230-1 and ISO 14230-2 apply.
3.2 Abbreviated terms
Mtype message type
AE address extension
DA destination address
ID identifier
FB first byte
SA source address
TA target address
SFID subfunction identifier
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, ISO 14230-1 and ISO 14230-2.
This part of ISO 14229 uses only a subset of the diagnostic services defined in ISO 14229-1 (see Table 2).
2 © ISO 2013 – All rights reserved

Uniied Diagnostic Services (UDS)
subset
ISO 14229-1 UDS
ISO 14229-6
speciication and
OSI Layer 7
UDSonK-Line
requirements
Application
vehicle manufacturer speciic
OSI Layer 6
Presentation
ISO 14229-2 UDS
OSI Layer 5
session layer services
Session
Standardized Service Primitive Interface
DoK-Line
ISO 14229-6 UDS –
UDSonK-Line
implementation
OSI Layer 4
Transport
ISO 14230-2
DoK-Line
OSI Layer 3
data link layer
Network
OSI Layer 2
Data Link
ISO 14230-1
DoK-Line
OSI Layer 1
physical layer
Physical
Figure 1 — UDSonK-Line document reference according to OSI model
6 Unified diagnostic services implementation on K-Line
6.1 General
This clause defines how the diagnostic services as defined in ISO 14229-1 apply to DoK-Line. For each
applicable service, the applicable subfunction and data parameters are defined.
To allow a common implementation of application layer and session layer for DoK-Line and other
communicat
...