| 摘要 |
PURPOSE:To prevent an alarm from its misoperation, by connecting a means, detecting a key condition of a main switch, means, detecting a condition of a vehicle, alarm means and a control means, such that these means can be actuated even when the main switch is turned off, and inhibiting the alarm means from being actuated when the main switch is turned on. CONSTITUTION:If an engine key is removed from a vehicle when it is stopped, a control means 11, to which a signal is output from a detecting means 27, turns off switches 7-10, 21 and turns on a switch 22. Under this condition, if the switch 10 is turned on by handling a knob of a door, the control means 11 turns on a switch 12 or 13, and abnormality is informed by turning on a head lamp 3 or actuating an alarm horn 4. This alarm action is inhibited when the detecting means 27 detects no removal of the key, when the door is not locked and when the key turns on a main switch 2. In this way, misoperation can be prevented. |
