FORCE SENSOR DIAGNOSIS APPARATUS,VEHICLE, AND RECORDING MEDIUM CONTAINING COMPUTER PROGRAM

A force sensor diagnosis apparatus performs a process of diagnosing a malfunction of a force sensor to detect external force applied to a wheel of a vehicle. The force sensor diagnosis apparatus acquires, based on a sensor signal of the force sensor, a vehicle-height direction force component detection value that is a force component in a height direction of the vehicle of external force applied to the wheel, calculates a vehicle-height direction force component estimation value on the basis of a sensor signal of a displacement sensor provided in a part of a suspension of the wheel and detects a state quantity corresponding to a stroke displacement of the suspension due to external force received by the wheel from a road surface, and performs malfunction determination of the force sensor by comparing the vehicle-height direction force component detection value and the vehicle-height direction force component estimation value.