Kia Carens: ESP(Electronic Stability Program) System / Yaw-rate and G Sensor Description and operation
When the vehicle is turning with respect to a vertical axis the yaw rate sensor
detects the yaw rate electroniclly by the vibration change of plate fork inside
the yaw rate sensor.
If yaw velocity reaches the specific velocity after it detects the vehicle'yawing,
the ESP control is reactivated.
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 longitudinal G sensor is installed in the yaw-rate sensor.
This longitudinal G sensor detects vertical acceleration of the vehicle, while
the lateral G sensor detects lateral acceleration of the vehicle. The HECU uses
these signals for the Hill start Assist Control function.

Specifications
Description
|
Specification
|
Remarks
|
Operating voltage
|
10 ~ 16V
|
|
Output signal
|
CAN Interface
|
|
Current Consumption
|
Max.140mA
|
|
Operating temperature
|
-40 ~ 85°C (-40 ~ 185°F)
|
|
Yaw-rate sensor
|
Measurement range
|
-75 ~ 75°/sec
|
|
Frequency response
|
15 ~ 45Hz (±3dB)
|
|
G sensor
|
Measurement range
|
-14.715 ~ 14.715m/s²
|
|
Frequency response
|
50Hz ± 60% (±3dB)
|
|
External Diagram

Removal
1.
Turn the ignition switch OFF and disconnect the negative (-) battery
cable.
2.
Remove the battery (A) and ECM (B).
...
Removal
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Pull the passenger seat towards the front till ...
Other information:
Removal and Installation
1.
Remove the automatic transaxle .
(Refer to Automatic Transaxle System - "Automatic Transaxle")
2.
Remove the drive plate(A).
Tightening torque :
71. ...
Troubleshooting
Customer Complaint Analysis
Check Sheet
There are six areas where a problem can occur: wiring harness, the radio, the
CD player, and speaker. Troubleshooting enables you to confine the problem to
a particular area.
Chart 1
...