Abstract: A method (60) of testing a ride control suspension component of a vehicle. The method comprises the steps of setting a vehicle suspension to a first ride mode (70), raising the first suspension to a first height (108), releasing fluid from the first suspension to lower the first suspension (130), and measuring a parameter during the lowering of the first suspension (132). The method further includes the steps of setting the first suspension to a second ride mode which is different than the first ride mode (76), raising the first suspension for a second time (108), releasing pressure from the first suspension to lower the first suspension for a second time (130), measuring a second parameter during the lowering of the first suspension (132), comparing the first and second parameters (82), and determining the condition of a suspension component based on the comparison (84).

Abstract: A system and method for resetting a portion of memory in a vehicle controller include repeatedly comparing data stored in at least one validation address with corresponding data stored in a non-volatile data storage device, transferring data representing nominal control parameter values from the non-volatile storage device to the portion of memory in response to a discrepancy between the data stored in the validation address and the corresponding data stored in the non-volatile data storage device, and modifying data stored in at least one validation address based on a request received via a communication port to generate discrepancy. A memory reset function is provided while limiting access by service technicians to modify values stored in memory and eliminating the need to disconnect the vehicle battery to remove power from the system. As such, other vehicle accessories are not affected by the reset function.