ISO 27145-1-2012 PDF

Full title and description

Road vehicles — Implementation of World‑Wide Harmonized On‑Board Diagnostics (WWH‑OBD) communication requirements — Part 1: General information and use case definition. This part gives the overall structure of the ISO 27145 series, defines common terminology and presents typical use‑case scenarios for WWH‑OBD vehicle ↔ external test equipment communication.

Abstract

ISO 27145‑1:2012 provides an overview of the structure and partitioning of the ISO 27145 series, outlines the primary use cases where ISO 27145 applies, and defines terminology common to the series. The series is intended to provide a world‑wide harmonized communication standard for access to OBD‑related information, initially based on ISO 15765 (DoCAN) with extensions toward ISO 13400 (DoIP/Ethernet) for future transport layers.

General information

• Status: Published / International Standard (confirmed stage).
• Publication date: August 2012 (2012‑08 / valid from 14 August 2012).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.180 — Diagnostic, maintenance and test equipment; 43.040.10 — Electrical and electronic equipment.
• Edition / version: Edition 1 (2012).
• Number of pages: 19 (ISO published document length).

Key bibliographic details above are taken from the ISO bibliographic entry for ISO 27145‑1:2012.

Scope

Defines the purpose, structure and use‑case scenarios for the ISO 27145 family that standardizes communication between vehicle WWH‑OBD systems and external (off‑board) generic test equipment. It clarifies the series’ relationship to existing diagnostic/transport specifications (e.g., ISO 15765 DoCAN and ISO 13400 DoIP) and sets out how the parts of ISO 27145 map to OSI communication layers.

Key topics and requirements

• Overview of the ISO 27145 series structure and partitioning.
• Definition of common terminology and concepts for WWH‑OBD communications.
• Use‑case descriptions for vehicle ↔ external test equipment interactions (initialization, capability discovery, diagnostic data access).
• Guidance on migration from DoCAN (ISO 15765) to DoIP (ISO 13400) and support for multiple physical/network layers.
• References to message and data dictionaries and diagnostic service subsets defined in other parts of the series (e.g., ISO 27145‑2/‑3/‑4).

Typical use and users

Used by vehicle OEMs, Tier‑1 suppliers, diagnostic tool manufacturers, test‑equipment vendors, regulatory bodies and laboratories involved in On‑Board Diagnostics (OBD) implementations and compliance testing. It is primarily a reference for architects and engineers designing communication interfaces and for authors of subsequent parts (message dictionary, transport mapping, etc.).

Related standards

ISO 27145‑1 is part of the ISO 27145 series for WWH‑OBD. Closely related parts include ISO 27145‑2 (data dictionary / presentation layer maps), ISO 27145‑3 (common message dictionary / diagnostic service subset) and ISO 27145‑4 (transport/network mapping including DoCAN and DoIP). The series references and maps to other diagnostic and transport standards such as ISO 14229 (UDS), ISO 15765 (DoCAN) and ISO 13400 (DoIP). Historically the series replaced earlier ISO/PAS 27145 documents from 2006.

Keywords

WWH‑OBD, On‑Board Diagnostics, vehicle diagnostics, diagnostic communication, DoCAN, DoIP, ISO 27145, diagnostic data dictionary, message dictionary, vehicle ↔ test equipment communication, UDS.

FAQ

Q: What is this standard?

A: ISO 27145‑1:2012 is the introductory part of the ISO 27145 series that defines the structure, terminology and use‑cases for world‑wide harmonized OBD communication between vehicles and external test equipment.

Q: What does it cover?

A: It covers general information, series partitioning, common terminology and typical use cases; it also describes how later parts of the series handle message dictionaries, data dictionaries and transport/network mappings. It does not itself define detailed message sets or transport mappings (those are in other parts).

Q: Who typically uses it?

A: Vehicle manufacturers, diagnostics tool vendors, test houses, regulatory agencies, and engineers responsible for implementing or certifying OBD communication interfaces.

Q: Is it current or superseded?

A: ISO 27145‑1 was published in August 2012 (Edition 1). The ISO bibliographic record shows it as a published international standard; ISO standards are subject to periodic review (typically every 5 years). Users should check the ISO catalogue or their national standards body for the latest confirmation or any amendments.

Q: Is it part of a series?

A: Yes — it is Part 1 of the ISO 27145 series (WWH‑OBD). Other parts include Part 2 (data/presentation mappings), Part 3 (common message dictionary) and Part 4 (transport/network mapping), among related documents that together specify the complete vehicle ↔ test equipment communication stack.

Q: What are the key keywords?

A: WWH‑OBD, OBD, diagnostic communication, DoCAN, DoIP, message dictionary, data dictionary, vehicle diagnostics, ISO 27145.