Electrical or electronic control device

An electrical or electronic control device 10 has an electrical or electronic assembly 11, which comprises a printed circuit board 12 composed of an electrically insulating carrier material, electrically conductive conductor tracks 13 formed on the printed circuit board 12 and electrical or electronic modules 14 connected to the printed circuit board 12 and via the conductor tracks 13. A coating 15 is applied at least in sections to the electrical or electronic assembly 11, wherein the coating 15 comprises at least the following layers: a first electrical conductor layer 16, a second electrical conductor layer 17, a dielectric layer 18 arranged between the first conductor layer 16 and the second conductor layer 17, and an insulator layer 19 applied to the second conductor layer 17 in such a way that the second conductor layer 17 is arranged between the dielectric layer 18 and the insulator layer 19. An evaluation unit, 20, which is connected to the conductor layers 16, 17 detects a change in capacitance of the coating 15, caused by a change in temperature of the electrical or electronic assembly 11, based on measurement variables tapped at the conductor layers 16, 17 of the coating 15. The electrical or electronic control device 10 may be a component part of a high voltage system of a vehicle, such as an electric vehicle or hybrid vehicle.