Abstract: A method for a heating device suitable for heating at least one soldered joint between an electronic component including at least a first contact mound and a printed circuit board. The soldered joint on the one hand securing the electronic component to the printed circuit board and on the other hand, while providing electrical continuity, the electronic component also having an electronic-component width, and an electronic-component thickness, wherein it includes an electrical-connection suitable for being coupled to an electrical power supply and a heater suitable for reaching a temperature at least equal to the melting point of the solder.

Abstract: A heating device suitable for heating at least one soldered joint between an electronic component including at least a first contact mound and a printed circuit board. The soldered joint on the one hand securing the electronic component to the printed circuit board and on the other hand, while providing electrical continuity, the electronic component also having an electronic-component width, and an electronic-component thickness, wherein it includes an electrical-connection suitable for being coupled to an electrical power supply and a heater suitable for reaching a temperature at least equal to the melting point of the solder.

Abstract: Disclosed is a method for controlling the voltage of an electrical apparatus of a motor vehicle. The method includes the steps of measuring (E2) the voltage at the terminals of the apparatus and measuring (E3) the strength of the output current of the apparatus, calculating (E4) the values of resistance, inductance and capacitance of the equivalent circuit on the basis of the measured current strength and the measured voltage, comparing (E7, E8, E9) the calculated values of resistance, inductance and capacitance with the values of resistance, inductance and capacitance, respectively, stored in a storage area of the electronic control unit, and initiating (E12) an action if the difference between at least one of the calculated values and the corresponding stored value is above a predetermined threshold.

Abstract: Disclosed is a method for controlling the voltage of an electrical apparatus of a motor vehicle. The method includes the steps of measuring (E2) the voltage at the terminals of the apparatus and measuring (E3) the strength of the output current of the apparatus, calculating (E4) the values of resistance, inductance and capacitance of the equivalent circuit on the basis of the measured current strength and the measured voltage, comparing (E7, E8, E9) the calculated values of resistance, inductance and capacitance with the values of resistance, inductance and capacitance, respectively, stored in a storage area of the electronic control unit, and initiating (E12) an action if the difference between at least one of the calculated values and the corresponding stored value is above a predetermined threshold.