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Home >> Subaru >> 2003 >> Forester F4-2.5L SOHC >> Repair and Diagnosis >> Restraints and Safety Systems >> Air Bag Systems >> Impact Sensor >> Description and Operation
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Impact Sensor: Description and Operation






AIRBAG SENSOR
The airbag control module and side airbag sensor contain an electric sensor and a safety sensor.

The electric sensor consists of a semiconductor type sensor which senses the deceleration caused by collision in terms of change in the electrical resistance of the impact sensing circuit.

The safety sensor is a pendulum type sensor. If the sensor receives a frontal or side impact exceeding a certain limit, the mass in the sensor move in the direction opposite to the impact direction to turn the switch ON.
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