Impact Sensor: Description: Side

Fig 1: Side Impact Sensor

Courtesy of DAIMLERCHRYSLER CORP.

Two side impact sensors are used on this model when it is equipped with the optional side curtain airbags, one each for the left and right sides of the vehicle. See Fig 1. These sensors are mounted remotely from the impact sensor that is internal to the Airbag Control Module (ACM). Each side sensor is secured with a screw to the inner right or left B-pillar above the front seat belt retractor within the passenger compartment. The sensor housing has an integral connector receptacle, an integral anti-rotation pin, and an integral mounting hole 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.

The impact sensors cannot be repaired or adjusted and, if damaged or faulty, they must be replaced.