In the present invention, on the basis of the results of determining whether or not a constituent element of a vehicle control device is malfunctioning, the malfunction determination logic for determining whether or not the vehicle control device as a whole is malfunctioning is caused to be easily reusable. This vehicle control device determines the level of functional malfunction of the vehicle control device on the basis of what combination of hardware configuring the vehicle control device is malfunctioning, and executes a failsafe function that is in accordance with the level of functional malfunction (see FIG. 5).