Automotive Electronics

KWP2000 K-Line

Brief description KWP2000 K-Line

KWP2000 on the K-Line was the first standardized diagnostic protocol used in Europe on a large scale.

Although it can address a large number of ECUs on a bus, it was usually used for a single ECU or just a few ECUs.

KWP2000 on the K-Line (ISO 14230) defines all layers of the OSI reference model from physics through transport protocol to diagnostic services.

Whereas KWP2000 is no longer used in the auto sector today, it is still often to be found in the heavy duty diesel sector.

Softing Experience

Softing played an active role in standardization from the very beginning, contributing its extensive communication expertise. As implementation and standardization ran concurrently, we have considerable experience that led to the implementation of the protocol for our diagnostic services.

In addition, we have implemented numerous manufacturer-specific protocols based on KWP2000 and are familiar with the counterpart in detail thanks to our experience of implementing the diagnostic protocol in the ECU - a clear competitive edge.

KWP2000 K-Line Solutions

Vehicle Communication Interfaces All our EDIC diagnostic interfaces as well as the VCIs of the HS and VIN|ING family feature KWP2000
Softing DTS.cos Protocol templates for KWP2000 are provided as a standard part of the package
Customized solutions Numerous customized implementations of the diagnostic stack in the ECU

Further Information


Softing's Training Program

Softing Automotive | Trainings & Seminars

Expertise through Training - Vehicle Diagnostics, ODX, OTX, Softing DTS & user-specific Trainings


External Links

For more information on the standard, please refer to the following sites:

Keyword Protocol 2000 (KWP2000) - Wikipedia