Impact Sensors

WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: If a vehicle has been in a crash, inspect the restraints control module (RCM) and the impact sensor (if equipped) mounting areas for deformation. If damaged, restore the mounting areas to the original production configuration. A new RCM and sensors must be installed whether or not the air bags have deployed. Failure to follow these instructions may result in serious personal injury or death in a crash.

The impact sensors provide data to the restraints control module (RCM) for use in calculating impact severity. This is accomplished using various electrical sensors located throughout the vehicle.

For these vehicles, the supplemental restraint system (SRS) employs 6 impact sensors. One of the sensors is integral to the RCM and is not separately serviceable. The RCM is mounted on the center tunnel between the front seats. There is one front impact severity sensor located in the front-center of the vehicle, behind the grille and 4 side impact sensors. The first row side impact sensors are located in each of the front doors behind the trim panel, the second row side impact sensors are located on or near the base of the C-pillar. Mounting orientation is critical for correct operation of all impact sensors.

The side impact sensors are not interchangeable between the first and second row.