Fault verification method and device, electronic equipment and storage medium

The invention provides a fault verification method and device, electronic equipment and a storage medium. The method comprises the following steps: adding a storage battery fault signal or a converter fault signal into a bus signal; the bus signal added with the storage battery fault signal or the bus signal added with the converter fault signal is verified in the vehicle, a power grid fault signal of the vehicle is obtained, and the power grid fault signal comprises a power grid fault signal value; if the power grid fault signal value is in the first interval, determining that the power grid fault diagnosis is accurate; and if the power grid fault signal value is not in the first interval, determining that the power grid fault diagnosis is wrong. According to the invention, verification of power grid fault signal diagnosis is carried out on a real vehicle completely according to the state of the real vehicle by using a method of simulating transmission of the power supply fault signal through bus communicati