Door lock for motor vehicles

In a motor vehicle having wiring and at least one locking element, a door lock comprising:

• a control element for operating the locking element;
• an electric motor for driving the control element;
• a transmitter for emitting a control signal;
• a signal receiver for receiving the control signal and being coupled to the control element;
• an electronic control system coupled via the wiring of the motor vehicle to the signal receiver and an exterior energy supply to control the control element, the control element being movable into a position which prepares the opening of the locking element, in response to the control signal;
• an energy accumulator assigned to the electronic control system, said energy accumulator being directly connectable to the signal receiver independent of the wiring of the motor between the signal receiver, exterior energy supply and electronic control system;
• and
• wherein the energy accumulator is connectable to the signal receiver to allow the signal receiver to activate the control element without said exterior energy supply.