GB/T 41590.3-2022: Road vehicles - Diagnostic communication over K-Line (DoK-Line) - Part 3: Application layer

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Scope

This Document specifies the requirements for K-Line-based diagnostic communication 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 Document 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 Document 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 (see Figure 2).

Basic Data

Standard ID	GB/T 41590.3-2022 (GB/T41590.3-2022)
Description (Translated English)	Road vehicles - Diagnostic communication over K-Line (DoK-Line) - Part 3: Application layer
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	T35
Word Count Estimation	86,836
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration