This Technical Information Report defines the diagnostic communication protocol TP2.0. This document should be used in conjunction with SAE J 2534-2 in order to fully implement the communication protocol in an SAE J 2534 interface.

Some Volkswagen of American and Audi of America vehicles are equipped with ECU(s), in which a TP2.0 proprietary diagnostic communication protocol is implemented. The purpose of this document is to specify the requirements necessary to implement the communication protocol in an SAE J 2534 interface.