KEYLESS ENTRY DEVICE

PURPOSE: To recognize that a keyless transmitter is normal even in the case that a vehicle actuator is not driven at the time of operating the keyless transmitter by detecting the reception of a command signal outputted from the transmitter independently of a receiver for driving control of the vehicle actuator. CONSTITUTION: The radio wave which is radiated from a keyless transmitter 1 through a free space and includes the command signal to release the door lock of a vehicle is taken into a radio reception antenna 9 and is transmitted to a frequency control part 13 by a radio feeder line 10. When a frequency band including the frequency of the radio wave of the keyless transmitter 1 is designated by a channel switch 11 for keyless report in this case, the radio wave corresponding to this frequency band is detected by a frequency control part 13 and is converted into a noise sound signal, and the sound volume level is amplified by an amplifier 14, and this noise sound signal is outputted and reported by a speaker 15.