Cushman, Darby & Cushman
Centralized warning system for vehicle
 A centralized warning system for a vehicle comprising a fault detecting sensor mounted at each of a plurality of check points of the vehicle, an indicator operating circuit responsive to each of the sensors to indicate the presence of a fault at the check point, a logical circuit responsive to at least one indication signal from the indicator operating circuits for generating a logical output, a pulse generating circuit responsive to the logical output, a timer circuit for actuating the pulse generating circuit for a predetermined period of time, a master warning device adapted to be operated by the pulse generating circuit, forced operation means for forcibly operating the indicator operating circuits and the master warning device and checking them for faults therein, and means for terminating the forced operation of the indicator operating circuits and the master warning device during the time between the actuation of the pulse generating circuit and the moment at which the normal centralized warning function is to be activated. 
Toyota Jidosha Kogyo Kabushiki Kaisha Nippondenso Co., Ltd.
G G
G07C G08B
inventional inventional
Koichi Hiroshi
Taniguchi Arai