Conditions for Setting the DTC

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Lateral acceleration does not change when reducing speed from 30 km/h to 0 km/h and the condition occurs 16 times in a row.
The yaw/lateral combination sensor fails an internal self test.
Ignition voltage to the yaw/lateral combination sensor is less than 9.5 volts.
Communication is lost between the EBCM and the yaw/lateral combination sensor.