Patent ID: 6415210
Filing Date: 2002-07-02
Classification: G07C

Abstract:
A diagnosis system for a vehicle capable of radio communication with an external management station, comprising:a battery mounted on a vehicle for supplying electric power; a control unit connectable to the battery for controlling various devices mounted on the vehicle and diagnosing the conditions of the various devices; a communication unit held connected to the battery irrespective of whether the vehicle is in use or in non-use and connected to the control unit via a communication line for acquiring a diagnosis result from the control unit through the communication line, storing the acquired diagnosis result in a memory thereof and transmitting the stored diagnosis result to the management station in response to a transmission request from the management station; and a supply state setting means for setting a state where the electric power necessary for an ordinary operation is supplied from the battery to the control unit when the vehicle is in use, and for setting a state where the electric power-necessary for the ordinary operation is not supplied from the battery to the control unit when the vehicle is in non-use, wherein the communication unit is constructed so as to transmit a latest diagnosis result stored therein, when the transmission request is received from the management station while the vehicle is in non-use.