The present disclosure relates to an electronic transmission controller, with a housing, a printed circuit board assembly, and at least one electronic module mounted on the printed circuit board assembly. The printed circuit board assembly may include a first region extending inside the housing, the first region being sealed from an external fluid. The printed circuit board assembly may include a second region extending outside the housing. The printed circuit board assembly may include a plurality of electrically conductive conductor path layers which are electrically insulated against one another by dielectric layers. An outer layer made of a fluid resistant and electrically insulating material may be applied to at least one outer electrically conductive conductor path layer of the plurality of conductive path layers at a location of the second region of the printed circuit board assembly.