Kia Soul EV: ESP(Electronic Stability Program) System / Yaw-rate and Lateral G Sensor Description and Operation

Kia Soul EV (PS EV) 2015-2020 Service Manual / Brake System / ESP(Electronic Stability Program) System / Yaw-rate and Lateral G Sensor Description and Operation

Description
The yaw rate and G sensor is included inside the air bag control module (SRSCM).
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''s yawing, the ESC control is reactivated.
The lateral G sensor senses vehicle''s lateral G. A small element inside the sensor is attached to a deflectable lever arm by the lateral G
Direction and magnitude of lateral G loaded to vehicle can be known by the change in electrostatic capacity according to lateral G.

Specifications
Description
Specification
Remarks
Operating voltage
8 ~ 16V

Output signal
CAN Interface

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

Yaw-rate sensor
Measurement range
± 100°/sec

G sensor
Measurement range
± 1.8 g


Rear Wheel Speed Sensor Repair procedures
Removal 1. Remove the rear wheel & 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. (Refer to Driveshaft and ...

Yaw-rate and Lateral G Sensor Repair procedures
Removal 1. Remove the ignition key from the vehicle. 2. Disconnect the battery negative cable and wait for at least three minutes before beginning to work. 3. Disconnect the DAB, PAB, SAB, ...

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