Kia Optima: Yaw-rate and Lateral G Sensor. Description and Operation - ESC(Electronic Stability Control) System - Brake System - Kia Optima TF 2011-2018 Service ManualKia Optima: Yaw-rate and Lateral G Sensor. Description and Operation

Description

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.

Specifications

Specifications
Description
Specification
Remarks
Operating voltage
10 ~ 16V

Output signal
CAN Interface

Operating temperature
-40 ~ 85°C (-40 ~ 185°F)

Yaw-rate sensor
Measurement range
-75 ~ 75°/sec

Frequency response
15 ~ 45Hz

Lateral G sensor
Measurement range
-14.715 ~ +14.715g

Frequency response
50Hz ± 60%


External Diagram


Inspection
1. Measure the output voltage between the terminal of the wheel speed sensor and the body ground. ...

Yaw-rate and Lateral G Sensor. Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the floor console. (Refer to the Body group - Console) 3. ...

See also:

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Installation
1. Installation is the reverse of removal. After replacement or reinstallation procedure of the valve body assembly, ...

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