Method for testing outputs of an electronic driver

A device for monitoring an item of equipment of a motor vehicle, said monitoring device comprising an electronic driver, a microcontroller, able to control said driver, and a circuit board to which the driver is connected, said circuit board being able to be electrically connected to an electrical load so that the driver can monitor said electrical load (20), said monitoring device, a switch configured to switch between a closed position, in which the driver and the circuit board are electrically connected, and an open position, in which the driver and the circuit board are electrically disconnected, the microcontroller is configured to:

• control the switch so as to be in its open position or in its closed position;
• control the driver so that said driver performs at least one diagnosis for detecting an electrical fault in the open position and in the closed position of the switch;
• detect an electrical fault of the monitoring device following at least one diagnosis for detecting an electrical fault performed by the driver;
• locate an electrical fault on the driver when said electrical fault has been detected in the closed position and in the open position of the switch;
• and
• locate an electrical fault on the circuit board or between the driver and the circuit board when said electrical fault has been detected in the closed position but has not been detected in the open position of the switch.