General Information

Electronic Stability Control
C1275 Longitudinal G Sensor Range/Performance error - General Information

Component Location





General Description

The ESC system(It is equally said ESP system) is the shorten word of Electronic Stability Control 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 Longitudinal G sensor is installed on the lower of the center console. This sensor is used for EPB control. In a case of EPB(Electric Parking Brake) system applied on the vehicle, the yaw-rate sensor, longitudinal G sensor and lateral G sensor are installed together in the one container which is called as "Cluster". The HECU recognizes the gradient of an incline by this longitudinal G sensor's signal.

DTC Description

The HECU monitors the signal of the longitudinal G sensor for a normal operation 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