Hyundai Tucson: ESC(Electronic stability system) System / Yaw-rate and G Sensor Description and Operation

Hyundai Tucson (LM) 2010-2015 Service Manual / Brake System / ESC(Electronic stability system) 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	Operating range	-75 ~ 75°/sec
Yaw-rate sensor	Frequency response	15 ~ 45Hz
Lateral G sensor	Operating range	-14.75 ~ 14.75m/sx
Lateral G sensor	Frequency response	50Hz ± 60%

External Diagram

ESC Control Unit Repair procedures

Removal 1. Turn the ignition switch OFF. 2. Disconnect the brake tubes from the HECU by unlocking the nuts counterclockwise with a spanner. Tightening torque : ABS : 12.7 ~ 16.7N.m(1.3 ~ 1 ...

Yaw-rate and G Sensor Repair procedures

Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the floor console. 3. Disconnect the yaw rate & lateral & Longitudinal G sensor connect ...

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