Theory Of Operation
WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
When powered, The Electronic Pedestrian Protection Module (EPPM) performs a self test of the capacitors used to initiate the squib deployment circuits in the event of collision detection. The repair of this fault condition does not involve any external circuitry and centers on verifying the integrity of these capacitors.