Precision Flight Serial CAT III and Microsoft Flight Simulator 9 (2004) - Manual (Page 5)

Serial CAT III and FS2004 Setup Guide Page 5
Enable Flight Controls
1. Now choose the Flight Controls.
2. Now enable the Elevator and Aileron, by clicking on the enable box which is opposite of the F for filter
box.
Aileron Calibration
3. Now click on Select button under the Aileron Axis. This should say Set Automatic now.
4. Turn your yoke all the way to the Left and hold it. Click on the Set left most limit.
5. Turn your yoke all the way to the Right and hold it. Click on the Set right most limit.