Pedestrian Protection System - Description & Operation: Introduction
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WARNING:
All pyrotechnic devices are dangerous. Before performing any procedures on any pyrotechnic device, read all information contained within the Standard Workshop Practices section of this article. Refer to Standard Workshop Practices
article.
The Pedestrian Protection System control module receives an impact signal from Pedestrian Contact Sensor (PCS) and two accelerometers mounted on the front bumper beam. The control module interprets the signals to determine whether impact is with a pedestrian or other object, such as a traffic cone. When the control module detects a valid impact signal and the vehicle is in the 15 to 45 kph speed range, it fires the two pyrotechnic hood latch release units and two pyrotechnic actuators which opens the hood approximately 130 mm.
The Pedestrian Protection System is factory fit only to non Federal vehicles.