Patent ID: 8442514

Claim:
A portable device for use in diagnosis, test or maintenance of a vehicle, comprising: a housing containing a processor, said processor configured to receive and process locally generated wireless electronic signals providing an indication of a position of the device, and therefore a position of an operator, relative to specific locations in or about a vehicle as the operator moves in or about the vehicle; a transmitter and receiver within said housing for communicating over a wireless communication link to a remote control and management center; an antenna coupled to said transmitter and receiver; a graphical screen display; an interactive user input mechanism; and a memory for durably storing diagnostic or test information generated at least in part from data entered by the operator of the device via the interactive user input mechanism; wherein said portable device does not need to be connected by a wire or cable to the vehicle when operating to receive or store diagnostic or test information relating to the vehicle; and wherein said processor is configured to display, receive or transmit information dependent upon a derived position of the device or operator relative to a specific location in or about the vehicle.