SSANGYONG KYRON 2006, Repair Manual, Page: 424 / 1105

ABS/ESP SYSTEM
KYRON SM - 2005.09
CHANGED BY
EFFECTIVE DATE
AFFECTED VIN
38
4890
The Microscopic tuning forks in the yaw rate sensor
measures the acceleration on the vertical axis of the
vehicle. When the angular acceleration occurs on the
vertical axis of the vehicle (Z axis) and this acceleration
occurs more than 4° (4 degree) per second, vibration
occurs at the top and bottom as shown in the figure.
This vibration is transmitted through the CAN communi-
cation line by the form of voltage value. In other words, it
detects the yawing of the vehicle.
The ESP sensor cluster can be considered as one module. The measured value by lateral/longitudinal and yaw rate
sensors is transmitted to ESP unit via two CAN lines. The supplied voltage from ESP unit is approx. 5 V with ignition
key “ON” and the output range through CAN line is approx. 0.2 ~ 4.8 V. When a sensor is faulty, the sensor cluster
produces an output signal of 0 V (fail safe function).
The ESP control operates when a divergence occurs between the vehicle yawing and the steering angle (i.e. the
ESP operates when the driver’s intent differs from the vehicle position). Therefore, the occurrence of vehicle yawing
does not imply the ESP operation.
Sensor Cluster Circuit
< Internal electric circuit of sensor cluster >
<Sensor Cluster>
<ESP Unit>
CAN -L
CAN -H
Power
29
31
25
Power
6
1
2
3
4
5
6
Ground
Power supply
circuit
Micro controller
CAN module
A/D converter
Yaw rate sensor
Longitudinal
sensor
Lateral sensor