Electronic Pedestrian Protection Hood Hinge Actuator - Description

DESCRIPTION





Active hood hinge actuators are found only in vehicles equipped with the Electronic Pedestrian Protection (EPP) system (also known as the PedPro or Active Hood System), which is available only in vehicles manufactured for certain export markets. An EPP active hood hinge actuator is located on each hinge. The actuators are secured by a self-tapping screw through an integral bracket (5) to a mounting plate integral to the lower bracket on each active hood hinge.

The actuator consists primarily of a tubular metal housing (1) containing a metal piston (2) with a molded plastic cap and a small pyrotechnically activated gas generator (4). The actuators are controlled by the Occupant Restraint Controller (ORC). An actuator pigtail wire (3) and connector insulator are routed to a dedicated take out of the headlamp and dash wire harness and connected to the vehicle electrical system by a keyed and latching molded plastic connector insulator to ensure a secure connection.

The EPP active hood hinge actuators cannot be repaired and, if ineffective or damaged, the entire actuator unit must be replaced. The actuators are not intended for reuse and must be replaced following any EPP system deployment.