General Information

Component Location





General Description

The sensor cluster installed at floor under center console is composed of yaw rate sensor, lateral G sensor, microcontroller in a aluminum container.
When the vehicle is turning with respect to a vertical axis the yaw rate sensor detects the yaw rate electronically by the vibration change of plate fork inside the yaw rate sensor. If yaw velocity reaches the specific velocity (4deg/s) after it detects the vehicle' yawing, the ESC control is reactivated.
The yaw rate sensor outputs 0V in case of a trouble.
Sensor cluster has a self diagnosis function, this information is outputted as yaw rate & lateral G signal to HECU through separate CAN.
The later G sensor senses vehicle's lateral G.
A small element inside the sensor is attached to a deflectable leverarm by later G. Direction and magnitude of lateral G loaded to vehicle can be known with electrostatic capacity changing according to lateral G.
The output voltage of the lateral G sensor is 2.5V when the vehicle is at a standstill. Only with lateral G sensor, the ESC can not be reactivated.

DTC Description

The Sensor Cluster is powered by the ECU via the power supply voltage line. High voltage is detected immediately by the hardware, if the power supply voltage exceeds 18.0V ± 1.0V and Low voltage is detected immediately if the power supply voltage drops below 6.5V ± 0.5V. The HECU receives the signal from Sensor Cluster via CAN bus line. A failure is detected if too many Bus Off event has occurred, CAN messages monitoring time exceeds the specified duration, the calculated and received checksum values differ.

DTC Detecting Condition









Schematic Diagram