•  The G sensor is installed under the RH front seat and detects vehicle movement during a brake lockup event that is transferred to other wheels through the powertrain, and transmits the signal to the ABS HU/CM.

•  The drive train of 4x4 vehicles delivers driving force to all four wheels, and due to this interlocking, the speed of all wheels during braking is the same. When driving on road surfaces with especially low m (friction coefficient), it is difficult to estimate the vehicle speed based on the wheel speed, and ABS braking becomes unreliable. (For 4x2 vehicles, the front and rear wheels are independent, so it is possible to accurately estimate the vehicle speed by measuring the difference between the rotation speeds of the front and rear tires.) A G sensor is installed to overcome this situation. When braking, the change in G-force is detected, and the road surface m is judged (low m, high m), enabling a correction of the vehicle speed estimation.

•  The output characteristics are based on 2.5 V with the vehicle in a stopped or driven with constant speed, and the subsequent fluctuation is depending on the situation whereby the G force occurs.