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Home >> Fiat >> 2017 >> 500 Lounge, Standard Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (Occupant Restraint Controller (Orc) - DTCS B0101-16 To B0116-1B - 500 - Electric) >> DTC Troubleshooting >> B0115-12 Passenger HEADBAG - Circuit Short To Battery >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different variant/trim than selected.

When powered, the Occupant Restraint Controller (ORC) sends a test current to the squibs to verify the integrity of the squib and wiring. These circuits are maintained in a "floating" configuration at the ORC (connected to neither power nor ground) as protection against inadvertent deployment. Use of the Supplemental Restraints System (SRS) Load Tool Kit 8443A in the tests below substitutes a suspect squib with a known good component. The SRS Load Tool Adapter provides a test point as well as a method for opening the shorting bar connections within the ORC harness connector. The side curtain airbags are a single-stage device that upon sensor detected impact they deploy. They are located above the headliner and fastened to one of the roof side rails. They protect the area from the A-pillar to the rear of the vehicle. The side curtain airbags and the seat thorax side airbags are deployed simultaneously independent of the front airbags during an impact event.

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