Circuit Description
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The scan tool will report zero yaw rate as 2.5 Volts without a sensor bias present. The sensor bias compensates for electronic signal errors, temperatures changes and manufacturing differences. With the vehicle at rest the voltage should be 2.5 volts.