Werner Zimmermann and Ralf Schmidgall: Bus systems in vehicle technology - protocols, standards and software architecture.KWP2000 is increasingly being replaced by UDS and is only relevant for older vehicle projects. The bus used is often the CAN (layers 1 and 2 in the OSI model). The KWP2000 is independent of the bus system used because it uses the higher layers of the OSI model. The communication between the workshop test device and the individual control devices, which usually come from many different manufacturers, was standardized with the KWP2000, but not necessarily cross-manufacturer as with the UDS protocol. In addition, it offers certain aids for work within automobile workshops (e.g. In addition to the pure diagnostic functionality (classic only exhaust gas diagnosis), such a diagnostic protocol offers the possibility of reprogramming ( flashing ), parameterization and coding of control units. KWP2000 is the abbreviation for Key-Word-Protocol 2000, which used to be a widely used diagnostic protocol in the field of electronic control units in the automotive sector.
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