Method and unit for operating an electromechanical adjusting device

A method for the operation of an electromechanical adjusting device with an actuating part, which is driven by a motor, which is controlled by a controller, and which can be adjusted between a first end position and a second end position depending on a manual specification for an operating element of the controller, wherein the controller is configured to detect the precise position of a blockage of an adjusting movement from sensor signals fed from a sensor means, the method comprising the step of performing a user action at the operating element, wherein:

• the actuating part is adjusted by an adjusting movement in the direction of the first end position, to take up a position in which a mechanical blockage occurs, in order to determine a reference position, and
• the actuating part is adjusted by a second adjusting movement into the second end position, in order to check the validity of the previously determined reference position by means of a test program held in readiness in the controller, wherein the test program decides, depending on the test result, whether an automatic operating mode, in which an actuating process initiated at the operating element runs automatically, is enabled or blocked.