Patent ID: 11874315
Assignee: VITESCO TECHNOLOGIES GMBH
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method for testing 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 furthermore electrically connected to an electrical load so that the driver can drive said electrical load, the monitoring device further comprising a switch connected between the driver and the circuit board and 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 method comprising:
the switch being in the closed position, controlling of the driver by the microcontroller so that said driver performs at least one diagnosis for detecting an electrical fault on the monitoring device;
detection of an electrical fault of the monitoring device;
positioning of the switch in its open position;
controlling of the driver by the microcontroller so that said driver reiterates the at least one diagnosis;
in the event of the electrical fault being detected again, locating of said electrical fault on the driver; and
in the event of absence of detection of the electrical fault, locating of said electrical fault on the circuit board or between the driver and the circuit board.