This sensor monitors the position of the three-point linkage arms and sends a signal to the tractor's electronic control unit. It is mounted on the hitch assembly and provides feedback that the control system uses to regulate lift height and draft response. A failed or drifting sensor causes erratic hitch movement, incorrect depth control, or a fault code on the display. As an AGCO original component, its output curve and connector pinout match the calibration of the factory-installed unit, so no signal offset or wiring adaptation is required.