4X4 With Traction Control
WARNING: This page is about a different car, the 2005 Dodge Durango. However, it is still accessible from the selected car via links, so may be relevant.
The sensor is monitored by the ABM at all times. The sensor contains an accelerometer which monitors vehicle deceleration rates (G-force). The accelerometer reads the rate of deceleration, sending a signal to the ABM.