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:

Signal Waveform
The three waveforms below are taken from the #1 and #4 injectors. The top waveform is from the high side (feed side) of the #1 and #4 injectors, while the middle waveform is from the low side ...

Parking brake
Checking the parking brake Check the stroke of the parking brake by counting the number of “clicks’’ heard while fully applying it from the released position. Also, the parking brake alone shou ...

Circuit Diagram
(M/T) (A/T) ...