Compass 2WD L4-2.4L (2008)
Impact Sensor: Description and Operation
Description
Front
FRONT
Two front impact sensors (1) are used on this vehicle, one each for the left and right sides of the vehicle. These sensors are mounted remotely from the
impact sensor that is internal to the Occupant Restraint Controller (ORC). Each front sensor is secured with a screw to the backs of the right and left
vertical headlamp bars on either side of the radiator within the engine compartment. The sensor housing has an integral connector receptacle (4), an
integral anti-rotation pin (3), and an integral mounting hole (2) with a metal sleeve to provide crush protection.
The right and left front impact sensors are identical in construction and calibration. A cavity in the center of the molded black plastic impact sensor
housing contains the electronic circuitry of the sensor which includes an electronic communication chip and an electronic impact sensor. Potting material
fills the cavity to seal and protect the internal electronic circuitry and components. The front impact sensors are each connected to the vehicle electrical
system through a dedicated take out and connector of the engine compartment wire harness.
The impact sensors cannot be repaired or adjusted and, if damaged or ineffective, they must be replaced.
Side
SIDE
Four side impact sensors (1) are used with the side curtain airbags, two each for the left and right sides of the vehicle. These sensors are mounted
remotely from the impact sensor that is internal to the Occupant Restraint Controller (ORC). Each side sensor is secured with a screw to the inner right or
left B-pillar ahead of the front seat belt retractor, and the inner quarter panel near the C-pillar beneath the trim within the passenger compartment. The
sensor housing has an integral connector receptacle (4), an integral anti-rotation pin (3), and an integral mounting hole (2) with a metal sleeve to provide
crush protection.
The right and left side impact sensors are identical in construction and calibration. A cavity in the center of the molded black plastic impact sensor
housing contains the electronic circuitry of the sensor which includes an electronic communication chip and an electronic impact sensor. Potting material
fills the cavity to seal and protect the internal electronic circuitry and components. The side impact sensors are each connected to the vehicle electrical
system through a dedicated take out and connector of the body wire harness.
