ISO 14230-3:1999

Road vehicles — Diagnostic systems — Keyword Protocol 2000 — Part 3: Application layer

Publication date: Mar 18, 1999

General information

Current stage: 90.20 Effective date: Jan 15, 2026

Originator: ISO

Owner: ISO/TC 22/SC 31

Type: International Standard

ICS: 43.180

Languages: English French

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Status: Published

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Scope

This part of ISO 14230 specifies the requirements for the Keyword Protocol 2000 data link on which one or several on-vehicle Electronic Control Units are connected to an off-board tester in order to perform diagnostic functions.This part of ISO 14230 specifies the requirements of the implementation of the Diagnostic Services specified in ISO 14229, including
- byte-encoding and hexadecimal values for the service identifiers;- byte-encoding for the parameters of the diagnostic service requests and responses;- hexadecimal values for the standard parameters.
The vehicle environment to which this part of ISO 14230 applies may consist of a single tester that may be temporarily connected to the on-vehicle diagnostic data link and several on-vehicle Electronic Control Units connected directly or indirectly.

Life cycle

NOW

PUBLISHED
ISO 14230-3:1999
90.20 Standard under periodical review
Jan 15, 2026

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