Kia Rio: Yaw-rate and G Sensor 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 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.

The longitudinal G sensor is installed in the yaw-rate sensor.

This longitudinal G sensor detects vertical acceleration of the vehicle, while the lateral G sensor detects lateral acceleration of the vehicle. The HECU uses these signals for the Hill start Assist Control function.

Specifications

External Diagram

Rear Wheel Speed Sensor Inspection

1. Measure the output voltage between the terminal of the wheel speed sensor and the body ground.    ...

Yaw-rate and G Sensor Removal

1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the front seat (LH) assembly. (Refer to the Bo ...

See also:

Removal
1. Remove the fuel pump. (Refer to Engine Control/Fuel System - “Fuel Pump�) 2. Remove the ORVR valve (A) after releasing hooks (B) ...

Servicing The Electrical System
1. Prior to servicing the electrical system, be sure to turn off the ignition switch and disconnect the battery ground cable. &nb ...

Removal
1. Remove the under cover. 2. Remove the mounting nut and disconnect the horn connector, then remove the horn (A). ...