This invention provides a vehicle axle assembly including a wheel end
supported on an axle by bearings. A system uses ABS to detect lateral
movement of the wheel end relative to the axle using a sensor and tone
ring. A fault code is generated during excessive lateral movement of the
wheel end relative to the axle. A wheel end condition detection system
activates a warning device in the vehicle cab communicating the severity
of the condition to the vehicle operator. Additionally, the system may
also communicate with a vehicle control system to limit speed of the
vehicle by regulating the vehicle's engine to ensure that the vehicle is
not operated at an unsafe speed until the wheel end condition is
corrected.