Kia Optima Hybrid: ESC(Electronic Stability Control) System / 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
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

Rear Wheel Speed Sensor Repair procedures

Removal 1. Remove the rear wheel and tire. Tightening torque: 88.3 ~ 107.9 N.m (9.0 ~ 11.0 kgf.m, 65.1 ~ 79.6 lb-ft) 2. Remove the rear wheel speed sensor mounting bolt (A). Tightening torque: 6.9 ~ 10.8 ...

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. Disconnect the yaw rate & lateral G sensor connector ...

Other information:

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Special Service Tools


Special Service Tools Tool(Number and Name)IllustrationUseDeployment tool0957A-34100AAirbag deployment tool.Deployment adapter0957A-3Q100Use with deployment tool.(DAB, CAB, BPT, APT)Deployment adapter0957A-2E110Use with deployment tool.(PAB)Deployment adapter0957A-3F100Use with deployment tool.(SAB)Dummy0957A-38200Simulator ...

Kia Optima Hybrid (TF HEV) 2016-2020 Service Manual: Front Bumper Components and Components Location


Components(1) 1. Front bumper cover2. Front bumper upper strip assembly3. Radiator grill upper cover4. Front bumper lower stiffner5. Front bumper rail assembly6. Front bumper side bracket [LH]7. Front bumper side bracket [RH]8. KIA ornamemt Components(2) 1. Front bumper cover2. Front bumper lip assembly3. ...

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