GB/T 41590.4-2022: Road vehicles - Diagnostic communication over K-Line (DoK-Line) - Part 4: Requirements for emission-related systems

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Scope

This Document specifies the requirements for the K-Line-based diagnostic communication data
link and connected vehicle and scan tool when used to comply with on-board diagnostic (OBD)
requirements for emission-related test data.
This Document only specifies requirements relative to K-Line-based diagnostic communication
for OBD purposes. Complete K-Line-based diagnostic communication requirements can be
found in ISO 14230 Parts 1 to 3 and in ISO 14229 (all parts). ISO 14230-1, ISO 14230-2 and
ISO 14230-3 are applicable for OBD purposes only as explicitly referenced in this Document.

Basic Data

Standard ID	GB/T 41590.4-2022 (GB/T41590.4-2022)
Description (Translated English)	Road vehicles - Diagnostic communication over K-Line (DoK-Line) - Part 4: Requirements for emission-related systems
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	R17
Word Count Estimation	7,746
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration