C. Replace the ORC Module
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, 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.
1. Apply the park brake and place the transmission shifter in the "Neutral" position.
2. Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge before further service.
3. Remove the center console (Figure 1).
4. Remove the mini console from the top of the floor panel transmission tunnel (Figure 1).
5. Remove the passenger side black silencer pad located under the glove box.
6. Remove the driver's side Heating, Ventilation and Air Conditioning (HVAC) plastic shroud (Figure 2).
7. First disconnect the instrument panel wire harness connector, followed by the body wire harness connector from the Occupant Restraint Controller (ORC) connector receptacles located on the rearward facing side of the module (Figure 3).
NOTE:
To disconnect the wire harness connectors from the ORC module, depress the release tab and lift the lever arm to the fully open position on each connector.
8. Remove the three screws that secure the ORC module to the ORC module bracket that is welded onto the top of the floor panel transmission tunnel.
9. Lift the ORC module far enough to disengage the locating pins and remove the ORC module from the bracket.
10. Carefully position the new ORC module to the ORC module bracket.
NOTE:
When the ORC module is correctly positioned, the arrow on the ORC module label will be pointed forward in the vehicle and the locating pins on the bottom of the ORC module will be engaged into the locating holes in the ORC module bracket.
11. Install and tighten the three screws that secure the ORC module to the ORC module bracket. Tighten the nuts to 12.5 N.m (9 ft.lbs.).
CAUTION:
The electrical connector lever arms on the wire harness connectors for the ORC module MUST be in the unlatched position before they are inserted into their connector receptacles or they may become damaged.
12. First reconnect the body wire harness connector, followed by the instrument panel wire harness connector to the ORC module connector receptacles located on the rearward facing side of the module. Be certain that the latches on both connectors are each fully engaged (Figure 3).
13. Install the driver's side Heating, Ventilation and Air Conditioning (HVAC) plastic shroud (Figure 2).
14. Install the passenger side black silencer pad located under the glove box.
15. Install the mini console onto the top of the floor panel transmission tunnel (Figure 1).
16. Install the center console (Figure 1).
17. The Module Initialization procedure should be performed first and then the Supplemental Restraint System (SRS) Verification Test procedure.
18. Perform the Module Initialization using the following procedure:
a. Turn the ignition switch to the "RUN" position, check to be certain that nobody is in the vehicle, and then reconnect the battery negative cable.
b. Use a diagnostic scan tool to access the ORC module and go to the "MISCELLANEOUS FUNCTIONS" menu item to perform the "INITIALIZE ORC" procedure to erase the DTC and initialize the new replacement ORC module.
NOTE:
Service replacement ORC modules are shipped in an UNLOCKED state and after installed will set an "ORC UNLOCKED - ALL DEPLOYMENT DISABLED" DTC.
c. Follow the screen prompts to initialize the ORC module.
19. Perform the Supplemental Restraint System (SRS) Verification Test using the following procedure:
a. Using the scan tool, read and record the active (current) Diagnostic Trouble Code (DTC) data.
b. Next, use the scan tool to read and record any stored (historical) DTC data.
c. Use the scan tool to erase the stored DTC data.
d. Turn the ignition switch to the "OFF" position for about 15 seconds, and then back to the "ON" position. Observe the airbag indicator in the instrument cluster. It should light from four to six seconds, and then go out. This indicates that the SRS is functioning normally and that the repairs are complete. If the airbag indicator fails to light, or lights and stays ON, there is still an active SRS fault or malfunction. Refer to the appropriate diagnostic information to diagnose the problem.