ANTITHEFT DEVICE, ELECTRONIC CONTROL UNIT, ANTITHEFT SECURITY SYSTEM, AND ANTITHEFT METHOD

摘要

An antitheft device that activates in connection with tampering with a vehicle, includes an air-conditioning unit operation determining portion that determines whether an air-conditioning unit is about to be operated or is operating, and a restricting portion that performs control to prohibit or restrict activation of the antitheft device when it is determined by the air-conditioning unit operation determining portion that the air-conditioning unit is about to be operated or is operating.