Grand Caravan V6-3.3L VIN R (2005)
Air Bag Control Module: Description and Operation
Occupant Restraint Controller - Typical
The Occupant Restraint Controller (ORC) is also sometimes referred to as the Airbag Control Module (ACM).
ORC Location
The ORC is secured with screws to a stamped steel mounting bracket welded onto the top of the floor panel transmission tunnel just behind and
underneath the instrument panel center stack 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.
An arrow 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 housing has integral mounting flanges, the ORC has two molded plastic electrical connectors that exits
the right facing side of the ORC housing. These terminal pins connect the ORC to the vehicle electrical system.
