Method and system for testing matched components of vehicle

A method comprises determining first and second measurements at different times. The first measurement includes a measurement of a signal output by a first vehicle component and the second measurement includes a measurement of a signal output by a second vehicle component, or the first measurement includes a measurement of a condition of the first vehicle component and the second measurement includes a measurement of a condition of the second vehicle component. A determination is made based at least in part on a difference between the first and second measurements exceeding a measurement threshold. The determination indicates that the first and/or second vehicle components is malfunctioning. The method includes outputting a notification indicating that the first and/or second vehicle components, which are matched with each other based on a common characteristic with respect to the vehicle, is malfunctioning. The first and second times are within a threshold amount of time.