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ISO 9141-3:1998

Road vehicles — Diagnostic systems — Part 3: Verification of the communication between vehicle and OBD II scan tool

Dec 20, 1998

General information

90.20     Jan 15, 2026

ISO

ISO/TC 22/SC 31

International Standard

43.180  

English   French  

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Scope

This part of ISO 9141 establishes recommended test methods, test procedures and specific test parameters in order to verify a vehicle or OBD II scan tool can communicate on a bus according to ISO 9141-2. It is not applicable as a test for a single module or for any subpart of an ISO 9141-2 network.
The test described is not provided to verify any tool or vehicle requirement not described in ISO 9141-2. In particular it does not check any requirement described in SAE J1962, SAE J1978, ISO 15031-5 or the expanded diagnostic protocol for scan tool.
The procedures and methods test a set of specific requirements applicable to all road vehicles and scan tools which make use of ISO 9141-2.

Life cycle

NOW

PUBLISHED
ISO 9141-3:1998
90.20 Standard under periodical review
Jan 15, 2026

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