Kia Cadenza YG: ESC(Electronic Stability Control) System / Yaw-rate and G Sensor Description and Operation

Kia Cadenza YG 2016-2021 Service Manual / Brake System / ESC(Electronic Stability Control) System / Yaw-rate and 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 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.

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 ~ 14.715m/s²

Frequency response
50Hz ± 60% (±3dB)


External Diagram

    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).

    Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the floor console. (Refer to the Body - "Console") 3.

    Other information:

    Kia Cadenza YG 2016-2021 Service Manual: Surround View Monitoring Switch Repair procedures

    Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the floor console upper cover. (Refer to Body - "Floor Console Assembly") 3. Disconnect the console upper cover connector (A). 4. Remove the cup holder assembly (A) after loosening the mounting screws.

    Kia Cadenza YG 2016-2021 Service Manual: Troubleshooting

    Troubleshooting Examples of False-Alarm Occurrence from system characteristics (It’s not a problem) – Characteristics of EM Wave : EM Waves are reflected against all material and especially metal very well. Reflections of EM Waves are varies with the shape of object.

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