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ISO 9141:1989

Road vehicles — Diagnostic systems — Requirements for interchange of digital information

Sep 21, 1989

General information

90.20     Jan 15, 2026

ISO

ISO/TC 22/SC 31

International Standard

43.180  

French   English  

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Published

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Scope

Specifies the requirements for setting up the interchange of digital information between on-board Electronic Control Units (ECUs) of road vehicles and suitable diagnostic testers. This communication is established in order to facilitate inspection, test diagnosis and adjustment of vehicles, systems and ECUs. Does not apply when system-specific diagnostic test equipment is used.

Life cycle

NOW

PUBLISHED
ISO 9141:1989
90.20 Standard under periodical review
Jan 15, 2026

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