G Sensor (4WD Models Only)
The G sensor senses deceleration during braking to determine whether the vehicle is being driven on a high #mu# road (asphalt road, etc.) or a low #mu# road (snow-covered road, etc.). It then sends a signal to the ABS actuator and electric unit (control unit).
The reed switch turns on when it is affected by a magnetic field. During sudden deceleration (braking on a high #mu# road), the weight moves and the magnet in the weight moves away from the reed switch. The magnetic field then diminishes and the reed switch turns off.