The vehicle speed sensor, also used for adaptive suspension, is located on the transmission and is used to establish the vehicle speed. The output current to the actuator is a function of the vehicle speed and steering wheel rotation rate. When the vehicle speed is 5 MPH or less, the output current is 0 mA, and full power steering assist is provided. As the vehicle speed increases to 20 MPH, the current increases linearly to 225mA. As the vehicle speed continues to increase up to 80 MPH, the current increases linearly to 550mA. The current then remains constant at 550mA for vehicle speeds above 80 MPH. Conversely, as vehicle speed decreases, the current decreases at the linearly rate.