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
1.
Install the start/stop button.
2.
Install the crash pad lower panel.
...
Rear Combination Light Bulb Replacement
1. Using a cross-tip screwdriver, remove the cover.
2. Turn the bulb socket counterclock-wise and remove it from the housing.
3. Push the bulb in, then rotate it one quarter turn counterclockwise ...
Injured person
A seat belt should be used when an injured person is being transported. When
this is necessary, you should consult a physician for recommendations. ...