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G Sensor

The G sensor detects changes in the vehicle's acceleration/deceleration rate in the longitudinal direction.

A piezo-resistor is formed on the beam. When the mass area moves during acceleration and deceleration, the beam distorts causing the resistance of the piezo-resistor to change. This change is converted into change in voltage and sent to the ABSCM.

Fig 1: Identifying Operation Of G Sensor

Courtesy of SUBARU OF AMERICA, INC.