QX4 V6-3275cc 3.3L SOHC MFI (VG33E) (1998)
Acceleration/Deceleration Sensor: Description and Operation
The G sensor senses deceleration during braking to determine whether the vehicle is being driven on a high road (asphalt road, etc.) or a low road
(snow-covered road, etc.). It then sends a signal to the Antilock Brake System (ABS) control unit.
The reed switch turns on when it is affected by a magnetic field. During sudden deceleration (braking on a high 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.