Occupant Restraint Controller

OCCUPANT RESTRAINT CONTROLLER

WARNING:
- TO AVOID PERSONAL INJURY OR DEATH, ON VEHICLES EQUIPPED WITH SIDE CURTAIN AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY OCCUPANT RESTRAINT CONTROLLER DIAGNOSIS OR SERVICE. THE OCCUPANT RESTRAINT CONTROLLER CONTAINS A ROLLOVER SENSOR, WHICH ENABLES THE SYSTEM TO DEPLOY THE SIDE CURTAINS IN THE EVENT OF A VEHICLE ROLLOVER EVENT. IF AN OCCUPANT RESTRAINT CONTROLLER IS ACCIDENTALLY ROLLED DURING SERVICE WHILE STILL CONNECTED TO BATTERY POWER, THE SIDE CURTAIN AIRBAGS 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 SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT.
- TO AVOID PERSONAL INJURY OR DEATH, ON VEHICLES EQUIPPED WITH AIRBAGS, DISABLE THE SUPPLEMENTAL RESTRAINT SYSTEM BEFORE ATTEMPTING ANY STEERING WHEEL, STEERING COLUMN, AIRBAG, OCCUPANT CLASSIFICATION SYSTEM, 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 SUPPLEMENTAL RESTRAINT SYSTEM. FAILURE TO TAKE THE PROPER PRECAUTIONS COULD RESULT IN ACCIDENTAL AIRBAG DEPLOYMENT.
- TO AVOID PERSONAL INJURY OR DEATH, NEVER STRIKE OR DROP THE OCCUPANT RESTRAINT CONTROLLER, AS IT CAN DAMAGE THE IMPACT SENSOR OR AFFECT ITS CALIBRATION. THE OCCUPANT RESTRAINT CONTROLLER CONTAINS THE IMPACT SENSOR, WHICH ENABLES THE SYSTEM TO DEPLOY THE SUPPLEMENTAL RESTRAINTS. IF AN OCCUPANT RESTRAINT CONTROLLER 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 SUPPLEMENTAL RESTRAINT DEPLOYMENT.

CAUTION: On vehicles equipped with the Occupant Classification System (OCS), never replace both the Occupant Restraint Controller (ORC) and the Occupant Classification Module (OCM) at the same time. If both require replacement, replace one. Then perform the supplemental restraint verification test before replacing the other. Both the ORC and the OCM store OCS calibration data, which they transfer to one another when one of them is replaced. If both are replaced at the same time, an irreversible fault will be set in both modules.

REMOVAL




1. Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge before further service.
2. Remove the center console from the top of the floor panel transmission tunnel (1).
3. Disconnect the instrument panel (3) and body (4) wire harness connectors from the Occupant Restraint Controller (ORC) (2) connector receptacles located on the forward facing side of the module. To disconnect the connectors from the ORC:
a. Slide the red Connector Position Assurance (CPA) lock on the top of the connector toward the front of the vehicle.
b. Depress the edge of the CPA lock closest to the ORC to release the connector latch tab and pull the connector straight away from the ORC connector receptacle.




4. Remove the three screws (2) that secure the ORC (3) to the ORC mount welded onto the top of the floor panel transmission tunnel (1).
5. Remove the ORC from the ORC mount.

INSTALLATION




1. Carefully position the Occupant Restraint Controller (ORC) (3) onto the ORC mount on the floor panel transmission tunnel (1). The bottom of the ORC housing is keyed. When the ORC is correctly positioned, the bottom of the housing will fit flush with the mount and the orientation arrow on the label on top of the housing will be pointed forward in the vehicle.
2. Install and tighten the three screws (2) that secure the ORC to the ORC mount that is welded onto the floor panel transmission tunnel. Tighten the screws to 14 N.m (10 ft. lbs.).




3. Reconnect the instrument panel (3) and body (4) wire harness connectors to the ORC (2) connector receptacles located on the forward facing side of the module. Be certain that the latches and the red CPA locks on both connectors are each fully engaged.
4. Reinstall the center console onto the top of the floor panel transmission tunnel (1).
5. Do not reconnect the battery negative cable at this time. The supplemental restraint system verification test procedure should be performed following service of any supplemental restraint system component.