Hyundai Santa Fe: Yaw-rate and G Sensor. Description and Operation

Hyundai Santa Fe DM 2013-2018 Service Manual / Brake System / ESC(Electronic Stability Control) System / Yaw-rate and 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 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 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		8 ~ 16V
Output signal		CAN Interface
Operating temperature		-40 ~ 85°C (-40 ~ 185°F)
Yaw-rate sensor	Measurement range	-128 ~ +128°/sec
Yaw-rate sensor	Frequency response	15 ~ 45Hz
G sensor	Measurement range	-1.99 ~ +1.99g
G sensor	Frequency response	50Hz ± 60%

Rear Wheel Speed Sensor. Repair procedures

Removal 4WD only 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: ...

Yaw-rate and 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 work. 3. Remove the floor console. 4. Loosen the bolts ...