Steering Wheel Angle Sensor
WARNING: This page is about a different car, the 2016 Ford Expedition. However, it is still accessible from the selected car via links, so may be relevant.
The steering wheel angle sensor is an internal component of the power steering gear and is serviced with the power steering gear. The PSCM uses the internal sensors to calculate the steering wheel angle, rotation speed and direction of travel and then sends this information to the ABS module over the HS-CAN.