Patent ID: 8615346

Claim:
A method for actuating a blocking member of a functionally essential component that comprises a drive, with which the blocking member can be moved into a locking position and into an unlocking position and vice versa, wherein in the locking position the blocking member mechanically engages with the functionally essential component, in the unlocking position the blocking member is released from the functionally essential component, the user initiates a defined triggering action to start the locking process, during which the blocking member is moved into the locking position from the unlocking position, wherein a monitoring occurs by means of a control unit, which can detect a possible incorrect position of the component that rules out a locking position of the blocking member, so that despite the triggering action the blocking member subsequently occupies the original unlocking position, wherein after detecting that the component is in an incorrect position, the blocking member is moved back into the unlocking position from an intermediate position, which lies between the unlocking position and the locking position, or wherein following detection of an incorrect position of the component the blocking member remains immoveable in its unlocking position despite a triggering action on the part of the user, and wherein the control unit is actuated and activated by means of the triggering action.