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: While it focuses on the application layer, it provides mappings to the ISO 15765-2 transport protocol (ISO-TP) to handle multi-frame diagnostic messages that exceed the standard 8-byte CAN frame.

The standard, often referred to as UDSonCAN , specifies how Unified Diagnostic Services (UDS) are implemented over a Controller Area Network (CAN). It functions as an application profile that maps the general UDS services defined in ISO 14229-1 onto the CAN bus architecture. Key Features of ISO 14229-3 iso 142293 pdf

Manages multi-frame segmentation via ISO 15765-2. : While it focuses on the application layer,