ISO 22901-2-2011 PDF

Full title and description

Road vehicles — Open diagnostic data exchange (ODX) — Part 2: Emissions-related diagnostic data. This part of ISO 22901 defines example ODX-modelled diagnostic data for emissions‑related OBD (on‑board diagnostics) systems so that diagnostic tool vendors and MVCI devices can interpret emissions-related ECU messages, communication parameters, vehicle interface descriptions and functional diagnostic capabilities in a consistent, machine-readable XML format.

Abstract

ISO 22901-2:2011 provides emissions-related OBD data examples described using the ODX (Open Diagnostic Data eXchange) model intended to make diagnostic data stream information available to diagnostic tool application manufacturers. It shows how ODX-formatted diagnostic data support communication between external test equipment / MVCI devices and vehicle ECUs, reducing the need for bespoke software conversion and enabling technician‑readable displays. The examples are based on emissions-related protocols (notably ISO 15765-4 / DoCAN) and draw on data definitions referenced in ISO 15031.

General information

• Status: Published (International Standard — confirmed at latest systematic review).
• Publication date: 2011-07 (July 2011).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.180 (Diagnostic, maintenance and test equipment).
• Edition / version: Edition 1 (2011).
• Number of pages: 72.

(General information above based on ISO bibliographic records and the standard's publication metadata.)

Scope

This part of ISO 22901 is intended to ensure that emissions‑related diagnostic data stream information is available in a standardised ODX format for diagnostic tool application manufacturers and other stakeholders in the aftermarket and vehicle diagnostics ecosystem. It provides emissions‑related OBD examples (protocol specifications, communication parameters, ECU software parameters, vehicle interface descriptions including connectors/pin‑out, and functional diagnostic descriptions) and demonstrates XML representations exemplary for other referenced diagnostic protocols.

Key topics and requirements

• ODX representation of emissions‑related OBD diagnostic data (XML-based data exchange model).
• Examples and templates for protocol specifications and communication parameters (including DoCAN / ISO 15765-4).
• Descriptions of ECU functional diagnostic capabilities and data needed for external test equipment to interpret messages.
• Vehicle interface descriptions (connectors, pin‑outs) relevant to emissions diagnostics.
• Compatibility with the Modular Vehicle Communication Interface (ISO 22900 series) and references to ISO 15031 data definitions.
• Machine‑readable structures aimed at reducing device‑specific programming for ODX‑compliant tools.

Typical use and users

Primary users are diagnostic tool and software vendors, MVCI hardware and middleware developers, vehicle manufacturers (for data exchange with suppliers), ECU and component suppliers, aftermarket service tool integrators, and test laboratories performing emissions diagnostics or developing repair & maintenance information derived from ODX/FXD datasets. The standard is used to prepare ODX datasets that enable tools to interpret ECU messages without custom protocol conversions.

Related standards

ISO 22901-2 is one part of the ISO 22901 ODX family; notable related standards include ISO 22901-1 (ODX data model specification) and ISO 22901-3 (FXD — fault symptom exchange description). It is also closely linked to the ISO 22900 MVCI series (ISO 22900-2 and ISO 22900-3), ISO 15031 (OBD data definitions) and ISO 15765-4 (DoCAN protocol) which are referenced for protocol and data examples.

Keywords

ODX, open diagnostic data exchange, OBD, emissions diagnostics, ECU, MVCI, DoCAN, ISO 22901, diagnostic data model, XML, vehicle diagnostics, fault symptom (FXD), ISO 22900, ISO 15031, ISO 15765-4.

FAQ

Q: What is this standard?

A: ISO 22901-2:2011 is the second part of the Open Diagnostic Data Exchange (ODX) series and provides emissions‑related diagnostic data examples and XML representations to support diagnostic tools and MVCI devices in communicating with vehicle ECUs.

Q: What does it cover?

A: It covers emissions‑related OBD diagnostic data examples modelled in ODX, including protocol specifications, communication parameters, ECU software and functional descriptions, vehicle interface (connector/pin‑out) details, and exemplary XML representations for those data elements.

Q: Who typically uses it?

A: Diagnostic tool manufacturers, MVCI hardware/software developers, vehicle OEMs and suppliers, aftermarket integrators, and test/inspection laboratories involved in emissions diagnostics and related data exchange.

Q: Is it current or superseded?

A: ISO's record shows ISO 22901-2:2011 as published in 2011 and confirmed at subsequent systematic reviews (the ISO bibliographic entry indicates the publication was reviewed and confirmed), so this edition remains the current published part for 22901-2. Users should verify the status with their national standards body for any national adoptions or later amendments.

Q: Is it part of a series?

A: Yes — it is part of the ISO 22901 ODX series (e.g., ISO 22901-1:2008 for the data model, ISO 22901-3:2018 for FXD fault symptom exchange description) and is intended to interoperate with related vehicle diagnostics standards such as the ISO 22900 MVCI series.

Q: What are the key keywords?

A: ODX, emissions, OBD, diagnostic data, MVCI, ECU, DoCAN, XML, ISO 22901, FXD.