Grand Caravan V6-4.0L (2008)
Seat Occupant Classification Module - Air Bag: Service and Repair
Occupant Restraint Controller (ORC) Module - Removal
REMOVAL
WARNING: To avoid serious or fatal injury on vehicles equipped with side curtain airbags, disable the Supplemental Restraint System (SRS)
before attempting any Occupant Restraint Controller (ORC) diagnosis or service. The ORC contains a rollover sensor, which enables the
system to deploy the side SRS components in the event of a vehicle rollover event. If an ORC is accidentally rolled during service while still
connected to battery power, the side SRS components will deploy. Disconnect and isolate the battery negative (ground) cable, then wait two
minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS.
Failure to take the proper precautions could result in accidental airbag deployment.
WARNING: To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS) before
attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service.
Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing
further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental
airbag deployment.
WARNING: To avoid serious or fatal injury, never strike or drop the Occupant Restraint Controller (ORC), as it can damage the impact
sensor or affect its calibration. The ORC contains the impact sensor, which enables the system to deploy the Supplemental Restraint System
(SRS) components. If an ORC is accidentally dropped during service, the module must be scrapped and replaced with a new unit. Failure to
observe this warning could result in accidental, incomplete, or improper SRS component deployment.
NOTE: Service ORC modules are shipped in a "Locked Out" state and when replaced, will set a B-2722 fault code, ORC UNLOCKED-ALL
DEPLOYMENT DISABLED. Utilize the diagnostic Scan Tool and access the ORC module and go into the MISCELLANEOUS menu and
perform the MODULE INITIALIZATION procedure. This will erase the fault codes and initialize the module.
1. Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge before further service.
2. If necessary, remove the Electronic Stability Program (ESP) dynamics sensor from the right side of the Occupant Restraint Controller (ORC)
mounting bracket (3) that is welded onto the top of the floor panel transmission tunnel.See: Brakes and Traction Control/Antilock Brakes /
Traction Control Systems/Lateral Accelerometer/Service and Repair/Removal.
3. Disconnect the instrument panel wire harness connector (4) and body wire harness connector (5) from the ORC (1) connector receptacles located
on the rearward facing side of the module. To disconnect the wire harness connectors from the ORC, depress the release tab and lift the lever arm
to the fully open position on each connector. Disconnecting the 36 pin connector first will allow for an easier access when disconnecting the 72 pin
connector.
4. Remove the three screws (2) that secure the ORC to the ORC mounting bracket.
5. Working from the right side of the floor panel transmission tunnel, lift the ORC far enough to disengage the locating pins and remove the ORC
from the bracket.
