Abstract: A vehicle diagnostic system and method utilizing a plurality of diagnostic data corpuses. A first corpus comprises conventional and well-known diagnostic data useful in a broad range of common service tasks. A second corpus comprises less well-known diagnostic data useful in less common service tasks. One or more specialty corpuses may comprise obscure, protected, or emerging diagnostic data for the last-common tasks specific to particular manufacturers of the vehicle or its components. The second corpus and one or more specialty corpuses may offer access only to users that have acquired sufficient authorization.

Abstract: A system and method for creating and distributing diagnostic tests to diagnostic devices. The system includes user devices, diagnostic devices, diagnostic development system and validation/authentication system. The system can create, validate and distribute one or more diagnostic tests to various diagnostic devices. This allows user to have the latest diagnostic tests in a timely manner.

Abstract: A system and method for creating and distributing diagnostic tests to diagnostic devices. The system includes user devices, diagnostic devices, diagnostic development system and validation/authentication system. The system can create, validate and distribute one or more diagnostic tests to various diagnostic devices. This allows user to have the latest diagnostic tests in a timely manner.

Abstract: A graphical user interface that is capable of being used on a computing device, such as a vehicle diagnostic tool. The graphical user interface includes various buttons that when actuated causes the vehicle diagnostic tool to perform a corresponding functionality such as read diagnostic trouble codes and collect and display a data stream of diagnostic data of a vehicle. The graphical user interface also displays buffered data in a data window and the data may be moved using various input buttons.

Abstract: A method of monitoring an oxygen sensor. The method includes collecting a set of data points from the oxygen sensor and identifying a number of parameters based on the set of data points collected. In turn, these parameters may be used to calculate a reaction time of the oxygen sensor. Also, a diagnostic tool for implementing the method.