The AFL headlamps are controlled by the HCM module (Headlamp Control module). The HCM is only present on Focus MK2/MK.5 versions with AFL or HID headlamps. Focus MK2/MK.5 versions with normal halogen headlights do not have this HCM. The AFL headlights do also require a steering angle sensor which is installed to the steering collumn. Focus MK2/MK.5 versions with normal halogen headlamps do not have this steering angle sensor. Focus MK2/MK.5 versions with ESP do have a steering angle sensor but the ESP steering angle sensor is different from the steering angle sensor for ESP/AFL. In most cases the wiring (or part of the wiring) which is required for AFL headlights will also be missing. Many times the wiring in the engine bay is present but the wiring in the interior is most times missing.
However the AFL headlights can be installed without using the AFL function. If the AFL motors inside the AFL headlights are disconnected these headlights can be adjusted correctly and used as normal healights