The Development of the on Board Diagnostics System on the Keyword Protocol


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Configuration of on board diagnostics system and diagnostic communication module ELM327 were introduced. According to elements of ELM327 and Keyword 2000 protocols, an OBDII diagnostic procedure was developed based on LabVIEW program. It was conducted on a certain type of K-Line communication engine. These procedures laid a foundation for engine testing to read real-time data and fault codes.



Edited by:

Long Chen, Yongkang Zhang, Aixing Feng, Zhenying Xu, Boquan Li and Han Shen




F. Y. Wang et al., "The Development of the on Board Diagnostics System on the Keyword Protocol", Applied Mechanics and Materials, Vol. 43, pp. 752-755, 2011

Online since:

December 2010




[1] SUN Huan-jun, etc: Technology & Economy in Areas of Communications, No. 1(2006), pp.71-73.

[2] Yang Dazhu, Reading the Fault Code of Self-diagnosis System of Starter on TOYOTA CROWN 3. 0, Auto Electric Parts(Z1) (2002) , pp.79-80.

[3] OBD Background, http: /www. OBDII. com.

[4] ISO/DIS 14230-2: Keyword Protocol 2000 - Part 2: Data Link Layer.

[5] LabVIEW User Manual, http: /www. ni. com/china.

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