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Home >> Chrysler >> 2011 >> 300 C, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 588 (Occupant Restraint Controller (Orc) - DTCS B212C-13 To U1415-00 - 1500) >> Diagnosis And Testing >> B274C-11-Driver Side Seat Thorax Squib 1 Control - Circuit Short To Ground >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and the wiring. These circuits are maintained in a "floating" configuration at the module, (connected to neither power nor ground), as protection against inadvertent deployment. Use of the SRS Load Tool in the tests below, substitutes a suspect squib with a known good component. (special tool #8443A, SRS Load Tool) The use of the SRS Load Tool Adapter provides a test point, as well as a method for opening the shorting bar connections within the harness connector. (special tool #8443-57, Adapter, Supplemental Restraint System Load Tool)

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