The invention relates to an electronic control unit (11) intended for equipping an automotive vehicle, comprising: —a first antenna (16A), and —a controller (12) which is connected to said first antenna and which is suitable for controlling a functionality of the vehicle as a function of signals exchanged with a mobile terminal (20) via said first antenna. According to the invention, the electronic control unit comprises at least one second antenna (16B) which exhibits electromagnetic properties and/or a position which are different from those of said first antenna and to which the controller is connected in such a way that the controller is suitable for controlling one or more functionalities of the vehicle as a function of signals exchanged with the mobile terminal via said second antenna.