There are two primary ISO documents that describe how to perform OBD communications on K- line between a “tester” and a “vehicle”. There are actually several ISO and SAE documents, but these two are the main ones that describe all aspects of the

OBD-2 library for iPhone(More documentation coming soon. In the interim, please see the SampleApps folder for reference on how to use the tools contained within OBD2Kit.OBD2Kit was written by Michael Gile (@mgile) as an off-shoot of the FUZZYCar and