General Information

ESP (CTC)
C1283 Yaw Rate & Lateral G Sensor-Signal - General Information

Component Location





General Description

The ESC system is the shorten word of Electronic Stability Program system. This system recognizes a critical driving condition by Yaw-rate sensor, Lateral acceleration sensor and Steering angle sensor. And then it stabilizes the vehicle by a individual wheel braking and engine torque control through CAN communication. Among components of this system, the yaw-rate & lateral G sensor is installed on the lower of the center console. The yaw-rate and the lateral G sensor are installed together in the one container which is called as "Cluster". When the vehicle is moving around a vertical axis, the yaw rate sensor senses the vibration changes of the plate-fork installed in the yaw-rate sensor. When the vehicle's yawing is sensed and the yaw velocity reaches a certain velocity, the ESC control is activated. The lateral G sensor senses a vehicle's lateral acceleration. A small element in the sensor is attached to a deflectable lever-arm. The HECU recognizes a vehicle's direction and a lateral acceleration by the lateral G sensor.

DTC Description

The HECU monitors the signals of the yaw-rate and the lateral G sensor and if the abnormal signal is detected or the difference between the acceleration value calculated from the changes of vehicle speed and the the acceleration value measured from the sensor is above a certain value, this DTC is set.

DTC Detecting Condition





Diagnostic Circuit Diagram