Airbag Components - Subaru Legacy 2015 Technicians Reference Booklet

2015 Legacy and Outback
New Technology Training
(Module 926)

Airbag components

The two front Sub Sensors are now located more to the center of the vehicle, under the hood stopper
bumpers. Always use the correct bolt to secure the sensor to the vehicle body. Bolts that are too
long will change the accuracy of the sensor as it will make contact with other body components.
4-3
Front Sub Sensor
A new Front Door Sensor has been installed to the vehicles' SRS systems. The sensor detects
changes in air pressure in the chamber that exists between the outer and inner door walls. An
Impact to a door changes the shape of the outer wall and changes the air pressure that exists in
the chamber at the instant of impact. A plastic door plate has been installed over a portion of the
inner wall to restrict the volume of air that would be displaced during a collision. This improves
the sensitivity of the Front Door Sensor.
4-4 4-5
Door Panel Front Door Sensor
Air enters the sensor through the funnel shaped duct and directs the air to a pressure sensor
located inside the sensor.
June 2014
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