Steering Wheel Position Information
WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The steering wheel position information is sent to the ABS module from the Power Steering Control Module (PSCM) along the HS-CAN bus. The PSCM calculates steering position based on motor position within the Electronic Power Assist Steering (EPAS) steering gear. For information on the PSCM and EPAS system, refer to STEERING SYSTEM - ELECTRONIC POWER ASSIST STEERING (EPAS) article.