A center stores functional modification information and failure information, which are associated with each other. The modification information is used to store specified vehicle data at specified time. A terminal device transmits failure information to the center and receives analytic information, which...http://www.google.com.au/patents/US20030050747?utm_source=gb-gplus-sharePatent US20030050747 - Failure diagnostic system and electronic control unit for use in diagnosing failure of vehicle
