Magnum V8-5.7L VIN 2 (2007)
Air Bag Control Module: Description and Operation
Description
DESCRIPTION
The Occupant Restraint Controller (ORC) (2), sometimes referred to as the Airbag Control Module (ACM), is secured with three screws to a stamped
steel mounting bracket welded onto the top of the floor panel transmission tunnel underneath the instrument panel center stack, beneath the center floor
console in the passenger compartment of the vehicle. Concealed within a hollow in the center of the die cast aluminum ORC housing is the electronic
circuitry of the ORC which includes a microprocessor, 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 with four screws to enclose and protect the internal electronic circuitry and
components.
The ORC housing has integral mounting flanges in three locations. Two molded plastic electrical connectors (1 and 2, referred to as C1 and C2 in the
diagnostic and wiring information) exit the rearward facing side of the ORC housing. These terminal pins connect the ORC to the vehicle electrical
system through two connectors.
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. The ORC
cannot be repaired or adjusted and, if damaged or faulty, it must be replaced.
