Conditions for Setting the DTC

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The marker pulse data parameter is high for less than 20 +/- of the steering wheel angle.
The marker pulse data parameter is high for greater than 20 +/- of the steering wheel angle.
The marker pulse data parameter is high when the steering wheel angle parameter is greater than +90 °.
The marker pulse data parameter is high when the steering wheel angle parameter is less than -90 degrees.
The steering wheel sensor analog output voltage is less than 0.125 volts.
The steering wheel sensor analog output voltage is greater than 4.875 volts.
The steering wheel position sensor phase A circuit is shorted to ground, open or shorted to voltage.
The steering wheel position sensor phase B circuit is shorted to ground, open or shorted to voltage.
The BCM detects an invalid steering wheel position sensor signal, sets a DTC, and therefore, cannot transmit valid serial data information.
The BCM sends a serial data message to the RWSCM, which causes the DTC to set.