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Transitioning Diagnostic Protocols at Volkswagen: From EDIABAS to ODX/ASAM Formats

This document explores the evolution of diagnostic protocols at Volkswagen, detailing the shift from the keyword protocol to UDS protocol, and transitioning from EDIABAS to ODX/ASAM formats. It covers the development of communication protocols, focusing on the implementation of K-line and in-house KWP1281 protocols, designed to meet ISO 9141 standards. It also examines the integration of statutory OBD diagnostics with OEM workshop diagnostics, culminating in the merging of ISO-KWP2000 and KWP1281 into KWP2000 light-plus, which is not a fully international standard.

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Transitioning Diagnostic Protocols at Volkswagen: From EDIABAS to ODX/ASAM Formats

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  1. Diagnosis Information ECU ECU Change of the diagnosis generations from keywordprotocoll to UDS protocoll from EDIABAS to ODX/ASAM format

  2. Network communication at Volkswagen Development of communication protocols at Volkswagen Interface K-line Development of in-house protocol KWP1281 via K-line. Design of K-line complies with ISO 9141 Merging of statutory OBD diagnostics and the workshop diagnostics of OEMs. ISO-KWP2000 and KWP1281 were combined to make KWP2000 light-plus. Therefore, this is not a 100% international standard K-line and CAN CAN

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