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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 73 ((Electronic Pedestrian Protection (EPP) Module - Electrical Diagnostics)) >> DTC Troubleshooting >> B276B-11-Left Hood Hinge Pedestrian Protection Squib - Short To Ground >> Theory Of Operation

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.

For description of the Electronic Pedestrian Protection Module (EPPM). Refer to MODULE, ELECTRONIC PEDESTRIAN PROTECTION, DESCRIPTION . For operation of the EPPM. Refer to MODULE, ELECTRONIC PEDESTRIAN PROTECTION, OPERATION . When powered, the EPPM sends a test current to the Electronic Pedestrian Protection actuator squibs to verify the integrity of the squib and the wiring. Use of the Supplemental Restraints System (special tool #8443A, SRS Load Tool) in the tests below substitutes a suspect EPPM actuator squib with a known good component. The use of the (special tool #8443-25, 56 Way ACM Adapter) provides a test point, as well as a method for opening the shorting bar connections within the harness connector. The EPPM is powered by a Ignition Run/Start (F943) control output circuit through the 32 pin connector side of the 56 way EPPM module connector. The 32 pin connector side of the 56 way EPPM module connector provides ground.