Kia Optima: Yaw-rate and Lateral G Sensor. Description and OperationDescription
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 after it detects the vehicle'yawing, the ESC 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.

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Description |
Specification |
Remarks |
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Operating voltage |
10 ~ 16V |
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Output signal |
CAN Interface |
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Operating temperature |
-40 ~ 85°C (-40 ~ 185°F) |
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Yaw-rate sensor |
Measurement range |
-75 ~ 75°/sec |
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Frequency response |
15 ~ 45Hz |
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Lateral G sensor |
Measurement range |
-14.715 ~ +14.715g |
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Frequency response |
50Hz ± 60% |
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External Diagram

Inspection
Yaw-rate and Lateral G Sensor. Repair proceduresInstallation
In the case of the vehicle equipped with immobilizer
or button engine start system, perform "Key Teaching" procedure together
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Inspection
1.
Remove the cowl top cover. (Refer
to the wiper)
2.
Disconnect the windshield deicer
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3. ...