Fernbedienung für Fahrzeuge

摘要

A radio terminal (3) has an LED (36) that indicates a failure status when a control unit (35) detects the reception of a failure diagnosis signal instead of a request signal from a vehicular transmitter. The radio terminal transmits a response signal based on the request signal received from the vehicular transmitter which is comprised of low frequency (LF) antennas (21a,21b,22a,22b) and LF transmitter circuits (23a,23b,24a,24b). A radio frequency (RF) unit (15) receives the response signal. A control unit (16) determines if the response signal matches stored identification information, and controls the operating state of a vehicle-mounted device based on the determination result. An independent claim is also included for a portable unit for use in a vehicular remote control device.