Method for operating a motor vehicle locking system

A method of operating a motor vehicle locking system, the motor vehicle locking system including an electric drive configured to provide a motorized locking function for the motor vehicle, the motor vehicle including a central battery configured to supply the electric drive with electrical energy during normal operation, the method comprising:

• assuming, by a closure element, an open position in which access to an auxiliary energy supply is blocked by the closure element;
• assuming, by the closure element, an open position in which access to the auxiliary energy supply is enabled by the closure, the auxiliary energy supply arranged in the closure element;
• monitoring, by a control unit, to check whether an emergency operation criterion is met;
• blocking, by a blocking unit, the closure element in the closed position so that the closure element is in a blocked state;
• and
• unblocking the closure element by actuating the control unit to unblock the closure element starting from the blocked state, in response to the emergency operation criterion being met;
• wherein the auxiliary energy supply is either a plug socket configured for connection to an external energy source to supply electrical energy from the external energy source or an electrical generator provided with a movement element, configured generate electrical energy in response to movement of the movement element by an operator.