Theory Of Operation

The Speed Control Switch is hard wired to the Steering Control Module (SCM). The SCM includes the steering column shroud, the Steering Angle Sensor (SAS), the Clockspring, the Multi-function Switch, a Steering Column Power Tilt and Telescope Switch (if equipped), and a trim cover. The SCM is located near the top of the steering column below the steering wheel. The speed control and SAS messages are bussed to the Powertrain Control Module (PCM) via the Can Bus.