A control device includes a controller that executes determining a connection between a first unit that has a boarding space which allows a user to board and is provided with a predetermined facility and that is provided with a first path through which a fluid used in the predetermined facility passes and a second unit that is configured to be separated from and connected to the first unit and that has a drive device of a vehicle that is formed by being connected to the first unit, and supplying the fluid in the first path to a second unit side to absorb heat generated from the drive device.