Method for determining an actuating travel range between two shift element halves (10, 11) of a positively locking shift element (A, F), which can be brought into engagement or out of engagement with one another in a positively locking manner by moving at least one of the shift element halves with respect to the other shift element half, during closing of the positively locking shift element (A, F) and if there is a tooth-on-tooth position between the two shift element halves (10, 11), wherein an actuating movement of the at least one movable shift element half with respect to the other shift element half is monitored using a sensor, and wherein a tooth-on-tooth position is detected if it is determined by means of the sensor, within an actuating travel range of the at least one movable shift element half between an open state and a closed state of the shift element (A, F), that the actuating movement of the at least one movable shift element half in the closing direction is zero, characterized in that the tooth-on-tooth position is detected if a ratio between a closing force applied to the switching element (A, F) and a radial force acting on the shift element halves (10, 11), which results from a torque applied to the switching element (A, F), is within a range of values favouring a tooth-on-tooth position and, after reducing the closing force and/or after increasing the applied torque, an actuating movement of the at least one movable switching element half in the closing direction is detected using the sensor, wherein the determination of the actuating travel range between the shift element halves (10, 11) is started if an actuating movement of the at least one movable shift element half in the closing direction is determined to be equal to zero using the sensor and a profile of the signal from the sensor within a period, which is equal to a predefined period or longer than the predefined period, is greater than or equal to a predefined lower threshold value and less than or equal to a predefined upper threshold value. wherein an actuating movement of the at least one movable shift element half with respect to the other shift element half is monitored using a sensor, and wherein a tooth-on-tooth position is detected if it is determined by means of the sensor, within an actuating travel range of the at least one movable shift element half between an open state and a closed state of the shift element (A, F), that the actuating movement of the at least one movable shift element half in the closing direction is zero, characterized in that the tooth-on-tooth position is detected if a ratio between a closing force applied to the switching element (A, F) and a radial force acting on the shift element halves (10, 11), which results from a torque applied to the switching element (A, F), is within a range of values favouring a tooth-on-tooth position and, after reducing the closing force and/or after increasing the applied torque, an actuating movement of the at least one movable switching element half in the closing direction is detected using the sensor, wherein the determination of the actuating travel range between the shift element halves (10, 11) is started if an actuating movement of the at least one movable shift element half in the closing direction is determined to be equal to zero using the sensor and a profile of the signal from the sensor within a period, which is equal to a predefined period or longer than the predefined period, is greater than or equal to a predefined lower threshold value and less than or equal to a predefined upper threshold value.