the second signal may be directly related to acceleration in three dimensions of the motor speed probe 112 the second signal may be primarily used as a diagnostic indicator for the overall health of the truck 102 as shown above in the exemplary waveforms of fig4 7 any number of characteristics related to normal operation trouble indicators and failures in truck related systems may be cataloged and used for future reference for diagnostics at a block 268 the second signal may be processed and compared to a database of pre determined signals associated with normal operation as well as one or more fault conditions in the truck 102 these fault conditions may include but are not limited to a faulty coupling of the motor speed probe 112 to the motor 110 a worn bearing in the motor 110 damage to an axle 106 coupled to the motor 110 a flat surface on a wheel 108 coupled to the motor 110 or a loss of lubricating fluid in the motor 110 at a block 270 an alert device 124 may be activated via the controller 120 when the second signal matches one of more the pre determined signals the alert device 124 may include both visual and audible indicators to an operator of the locomotive as well as signal sent to remote locations both on and external to machine 100 and any train associated with the machine 100 the ability to confirm wheel lock up as well as the ability to diagnose.