Steering Wheel Rotation Sensor
WARNING: This page is about a different car, the 2015 Lincoln MKS. However, it is still accessible from the selected car via links, so may be relevant.
On vehicles not equipped with active park assist, the steering wheel rotation speed and direction of travel is determined by the PSCM and is sent to the ABS module over the HS-CAN.
On vehicles equipped with active park assist, the steering wheel rotation sensor directly measures the steering wheel rotation speed and direction of rotation. The sensor is mounted on the SCCM and the information is sent to the ABS module over the HS-CAN.