Abstract: A wheel alignment system including at least one sensing device for acquiring automotive data, interface circuitry in communication with the sensing device for transferring data representative of automotive data acquired by the sensing device, and a host computer in communication with the interface circuitry for performing a sequence of operations on the data transferred by the interface circuitry. The host computer provides integrated Internet access to allow for transmission to the vehicle wheel alignment system, from a remote server, via the Internet, updated information and software applications and components necessary to accurately diagnose a vehicle, and the return of diagnostic, statistical, and log information associated with the vehicle wheel alignment system.

Abstract: A wheel alignment system including at least one sensing device for acquiring automotive data, interface circuitry in communication with the sensing device for transferring data representative of automotive data acquired by the sensing device, and a host computer in communication with the interface circuitry for performing a sequence of operations on the data transferred by the interface circuitry. The host computer provides integrated Internet access to allow for transmission to the vehicle wheel alignment system, from a remote server, via the Internet, updated information and software applications and components necessary to accurately diagnose a vehicle, and the return of diagnostic, statistical, and log information associated with the vehicle wheel alignment system.

Abstract: A system for measuring vehicle alignment angles has a plurality of sensor elements for mounting to wheels of a vehicle to be aligned. The system uses the sensor elements to measure various angles such as steer ahead angle and toe, and the system also has a display for displaying information to a user and a memory for storing operating instructions for the system. Operating instructions are stored in the memory for determining from compensation measurements taken at a minimum of first and second longitudinally displaced positions whether the toe parameter of two wheels falls outside a predetermined toe range, and whether the steer ahead angle of the vehicle falls within a predetermined range. The operating instructions stored in the memory further include instructions responsive to the toe parameter falling outside the toe range to control the system to display to the user information indicative of the need to adjust the toe parameter before taking additional compensation measurements.