Stability Control Sensor Cluster

The stability control sensor cluster consists of the yaw rate sensor and a lateral accelerometer. The lateral accelerometer measures the acceleration which corresponds to the force involved when the vehicle slides sideways. This acceleration has 2 forms. The first is the centrifugal acceleration which is generated when the vehicle travels around in a circle. The second is the acceleration due to gravity. On level ground there is no contribution from this acceleration. However, if the vehicle is parked sideways on a bank or incline, the sensor measures some lateral acceleration due to gravity even though the vehicle is not moving.

The yaw rate sensor measures the relative vehicle motion about the vertical axis through its center of gravity.

The sensor cluster receives power from the battery junction box (BJB) and is grounded to the vehicle chassis. The sensor communicates with the ABS module along a secondary, dedicated controller area network 2 (CAN2) bus.