Circuit/System Description

The electronic brake control module (EBCM) receives a digital and an analog steering wheel position signal from one sensor. The EBCM uses the steering wheel position sensor (SWPS) signals to perform Vehicle Stability Enhancement System (VSES). The analog and digital data parameters on the scan tool normally range from +220° to -220°. With the steering and steering wheel centered, the analog data parameter on the scan tool should display near 0°. The digital data parameter will calibrate to 0° after each key cycle regardless of actual steering wheel position. The EBCM verifies the accuracy of the steering wheel position signal by correlating the digital and analog signals together.