A method for reteaching a switching circuit is provided. The method includes presenting a target within a sensing range of a sensor of the switching circuit for a pre-determined duration and acquiring an identification code of the target via the sensor. The method also includes comparing the acquired identification code with all stored identification codes of other targets previously used by the switching circuit as a basis for switching and reteaching the switching circuit for switching based on the acquired identification code if the acquired identification code is different from all stored identification codes previously used by the switching circuit as a basis for switching.