Description And Operation: Description
The Occupant Restraint Control (ORC) module (1) is secured by three nuts to weld studs on the top of the floor panel transmission tunnel under the center floor console near the instrument panel in the passenger compartment of the vehicle. Concealed within a hollow in the center of the ORC housing is the electronic circuitry of the ORC which includes a microcontroller, an electronic impact sensor, an electronic safing sensor and an energy storage capacitor. A stamped metal cover plate is secured to the bottom of the ORC housing to enclose and protect the internal electronic circuitry and components.
An arrow (2) printed on the label on the top of the ORC housing provides a visual verification of the proper orientation of the unit, and should always be pointed toward the front of the vehicle. The ORC cover plate has integral mounting flanges on the right rearward and both forward corners. Two molded plastic electrical connector receptacles exit the rearward facing side of the ORC housing. These receptacles connect the ORC to the vehicle electrical system through two dedicated take outs and connectors, one from the instrument panel wire harness and the second from the body wire harness.
The impact sensor and safing sensor internal to the ORC are calibrated for the specific vehicle, and are only serviced as a unit with the ORC. In addition, there are unique versions of the ORC for vehicles with or without certain optional Supplemental Restraint System (SRS) components. The ORC cannot be repaired or adjusted and, if damaged or ineffective, it must be replaced.