Kia Cadenza YG: 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: Auto Head lamp leveling Unit Repair procedures

    Removal Height Sensor 1. Remove the height sensor connector (A). 2. Loosen the mounting bolts(Body: 2EA, chassis: 1EA) from height sensor bracket. Tightening torque : 3 ~ 5N.m (30 ~ 50kgf.m, 2.21 ~ 3.68lb-ft) 3. Remove the height sensor.

    Kia Cadenza YG 2016-2021 Service Manual: Evaporator unit Repair procedures

    Inspection 1. Ignition "OFF". 2. Disconnect evaporator temperature sensor. 3. Using the multi-tester, Measure resistance between terminal "1" and "2" of evaporator temperature sensor. Specification Evaporator coretemperature [°C(°F)]Resistance[KΩ]Voltage[V]-20(-4)70.

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