GB/T 40822-2021
ActiveRoad vehicles—Unified diagnostic services
道路车辆 统一的诊断服务
Application Summary AI generated
This standard specifies the unified diagnostic services for road vehicles, defining the application layer requirements for diagnostic communication between electronic control units (ECUs) and external test equipment. It is applied in the automotive industry for vehicle development, production, and after-sales service, ensuring consistent diagnostic functionality across different vehicle manufacturers and diagnostic tools. The standard supports services such as reading/clearing diagnostic trouble codes, data identification, and routine control functions.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.