Electronic Stability Control (ESC)

The ESC system constantly monitors the vehicle motion relative to the intended course. This is done by using the yaw rate and lateral accelerometer sensors to compare the steering input with that of the actual vehicle motion. The ESC system monitors information from the Throttle Position (TP) sensor, the steering wheel rotation sensor (steering wheel angle and rate of change) a yaw rate sensor and lateral accelerometer sensor which is integral to the Restraints Control Module (RCM) and measures changes in vehicle direction. If the ESC system determines from all these inputs that the vehicle is unable to travel in the intended direction, the system adjusts the brake torque at specific wheels in response to direct measurement of the vehicle motion and reduces engine torque to allow the vehicle to follow the intended course.