A DEVICE FOR SECURING A VEHICLE AGAINST THEFT

An object of the invention is a device that secures a vehicle against theft cooperating with a vehicle electronic system(s).The device that secures a vehicle against theft (Z) consists of a microprocessor (UC) connected to with a controller and CAN network interface, which are the input communication interfaces (KI1) to (KIn) with the controller and the CAN network interface constituting the output communication interface (KO1) to (KOm.). The microprocessor (UC) is connected to a Bluetooth communication module (BT), which is communicated with a smartphone (T). The device that secures a vehicle against theft (Z) is connected to an existing vehicle data bus (P) in between the electronic gear selector and, for vehicles driven by an electric motor, between the electronic gear selector (W) and the automatic transmission controller (B) and, for vehicles driven by an electric motor, the electric motor controller (M). Also connected to the data bus (P) are the vehicle controllers (S1) to (Sn,), the automatic transmission controller (B) and the electronic gear selector (W) with a message and signal generator (GK) of the electronic gear selector with a message and signal filter (FK) of the electronic gear selector.