Circuit Description
WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
The vehicle uses the longitudinal accelerometer input when calculating the desired traction control. The usable output voltage range for the longitudinal accelerometer 0.48-4.84 volts. The scan tool will report zero longitudinal acceleration as 2.5 volts with no sensor bias present.
The longitudinal accelerometer sensor bias compensates for sensor mounting alignment errors and electronic signal errors.