Module, Occupant Restraint Control (Orc): Installation
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 may contain a rollover sensor, which enables the system to deploy the side SRS components in the event of a vehicle rollover event. If an ORC containing a rollover sensor 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.
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, Occupant Classification System (OCS), 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 follow these instructions may result in accidental airbag deployment.
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.
- Working from the right side front floor panel, carefully position the ORC (2) onto the front of the floor panel transmission tunnel (5), aligning the mounts of the ORC to the studs on the floor panel. When the ORC is correctly positioned, the bottom of the housing will fit flush with the floor and the orientation arrow on the label on top of the housing will be pointed forward in the vehicle.
- Still working from the right side front floor panel, reach around the forward edge of the instrument panel center stack support on the floor panel transmission tunnel to install the two fasteners (1) that secure the ORC to the studs on the floor panel transmission tunnel. Tighten the fasteners to the proper torque specifications. Refer to TORQUE SPECIFICATIONS .
- Still on the right side, connect and latch the instrument panel wire harness connector (3) to the ORC connector receptacle located on the rearward facing side of the module. Make certain that the latch on the connector is fully engaged.
- Still on the right side, install the bracket that secures the lower instrument panel center stack structural support to the floor panel transmission tunnel. Refer to PANEL, INSTRUMENT, INSTALLATION .
- Working from the left side front floor panel, reach around the forward edge of the instrument panel center stack support on the floor panel transmission tunnel to install the fastener (1) that secures the ORC to the stud on the floor panel transmission tunnel. Tighten the fastener to the proper torque specifications. Refer to TORQUE SPECIFICATIONS .
- Still working from the left side front floor panel, connect and latch the body wire harness connector (4) to the ORC connector receptacle located on the rearward facing side of the module. Make certain that the latch on the connector is fully engaged.
- Install the front side panels to the center floor console on both the right and left sides of the floor panel transmission tunnel. Refer to CONSOLE, FLOOR, INSTALLATION .
- If this Electronic Control Unit (ECU) is being replaced with a new unit, a diagnostic scan tool MUST be used to determine if alignment of the PROXI configuration data into the new ECU is needed. If PROXI alignment is needed, follow the routine outlined in the diagnostic scan tool for PROXI Configuration Alignment under the Body Control Module (BCM) Miscellaneous Functions menu.
- If this ECU is being replaced with a new unit, the Initialize ORC Miscellaneous Function must be run using a diagnostic scan tool.
- Do not connect the negative battery cable at this time. The Supplemental Restraint System (SRS) Verification Test procedure should be performed following service of any SRS component. Refer to SUPPLEMENTAL RESTRAINT SYSTEM VERIFICATION TEST .