This module is the electronic control unit for the automatic header height and ground-pressure adjustment system on a combine harvester. It processes signals from the mechanical feeler sensors and sends commands to the hydraulic valves that raise, lower, and tilt the header. When the module fails, the autocon tour function becomes unresponsive or erratic, forcing the operator to switch to manual header control. As an original component, its internal circuitry and connector pinout match the wiring harness and sensor inputs of the assembly it replaces, eliminating the need for adapter cables or re-pinning.