ISO 14229-2:2021
Road vehicles — Unified diagnostic services (UDS) — Part 2: Session layer services

Standard No.

ISO 14229-2:2021

Release Date

2021

Published By

International Organization for Standardization (ISO)

Latest

ISO 14229-2:2021

Scope

This document specifies common session layer services and requirements to provide independence between unified diagnostic services (ISO 14229-1) and all transport protocols and network layer services (e.g. ISO 13400-2 DoIP, ISO 15765-2 DoCAN, ISO 10681-2 communication on FlexRay, ISO 14230- 2 DoK-Line, and ISO 20794-3 CXPI). This document specifies a common service primitive interface between OSI layer 5 (session) and layer 4 (transport) via so-called service request/indication/confirmation primitives.

ISO 14229-2:2021 Referenced Document

• ISO 14229-1 Road vehicles — Unified diagnostic services (UDS) — Part 1: Application layer — Amendment 1*， 2022-10-25 Update
• ISO/IEC 7498-1 Information technology — Open Systems Interconnection — Basic Reference Model: The Basic Model

ISO 14229-2:2021 history

• 2021 ISO 14229-2:2021 Road vehicles — Unified diagnostic services (UDS) — Part 2: Session layer services
• 2013 ISO 14229-2:2013 Road vehicles - Unified diagnostic services (UDS) - Part 2: Session layer services