A method for producing a cover, in particular a key, made from an injection molded plastic material, the cover comprising: - a front plate and at least one light conductor pin that is integrally connected with the front plate and made from a light permeable material wherein the light conductor pin extends from a front surface of the front plate through the front plate and beyond a backside of the front plate, - a base element made from a non-light permeable plastic material wherein the base element extends from a backside of the front plate and protrudes in a backward direction about the at least one light conductor pin, the method comprising the following sequential steps that are performed in an injection molding tool, a) integrally injection molding the front plate and the at least one light conductor pin directly connected with each other in the same tool in a single injection molding step or in two sequential injection molding steps, b) injection molding the base element remote from a front plate assembly (3 + 6) including the front plate and the light conductor pin in the same tool, characterized in that c) the light conductor pin is laterally melted together with the front plate in a front end portion of the light conductor pin and after opening the tool either the base element or the front assembly (3+6) are axially moved out from a remainder of the tool by a movable tool element, d) the tool element with the axially movable component is moved transversally so that the tool element is aligned with the at least one light conductor pin, and e) the tool is closed and the base element is moved with its at least one channel over the at least one light conductor pin in a direction towards the front plate and interlocked with the front plate on a backside thereof, and f) after opening the tool the cover is retrieved. - a front plate and at least one light conductor pin that is integrally connected with the front plate and made from a light permeable material wherein the light conductor pin extends from a front surface of the front plate through the front plate and beyond a backside of the front plate, - a base element made from a non-light permeable plastic material wherein the base element extends from a backside of the front plate and protrudes in a backward direction about the at least one light conductor pin, the method comprising the following sequential steps that are performed in an injection molding tool, a) integrally injection molding the front plate and the at least one light conductor pin directly connected with each other in the same tool in a single injection molding step or in two sequential injection molding steps, b) injection molding the base element remote from a front plate assembly (3 + 6) including the front plate and the light conductor pin in the same tool, characterized in that c) the light conductor pin is laterally melted together with the front plate in a front end portion of the light conductor pin and after opening the tool either the base element or the front assembly (3+6) are axially moved out from a remainder of the tool by a movable tool element, d) the tool element with the axially movable component is moved transversally so that the tool element is aligned with the at least one light conductor pin, and e) the tool is closed and the base element is moved with its at least one channel over the at least one light conductor pin in a direction towards the front plate and interlocked with the front plate on a backside thereof, and f) after opening the tool the cover is retrieved. a) integrally injection molding the front plate and the at least one light conductor pin directly connected with each other in the same tool in a single injection molding step or in two sequential injection molding steps, b) injection molding the base element remote from a front plate assembly (3 + 6) including the front plate and the light conductor pin in the same tool, characterized in that c) the light conductor pin is laterally melted together with the front plate in a front end portion of the light conductor pin and after opening the tool either the base element or the front assembly (3+6) are axially moved out from a remainder of the tool by a movable tool element, d) the tool element with the axially movable component is moved transversally so that the tool element is aligned with the at least one light conductor pin, and e) the tool is closed and the base element is moved with its at least one channel over the at least one light conductor pin in a direction towards the front plate and interlocked with the front plate on a backside thereof, and f) after opening the tool the cover is retrieved.