Service Procedure
A. Interrogate the Original ORC Module1. Connect the wiTECH scan tool to the vehicle.
2. Select ORC module from the Vehicle View screen.
3. Select the "ECU Details" tab.
4. Read the "ECU Part Number".
5. Use the chart below to determine which replacement ORC module to install. Then continue to Section B. Replace ORC Module.
B. Replace 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) module diagnosis or service. The ORC module 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 module 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 ORC module 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) module, as it can damage the impact sensor or affect its calibration. The ORC module contains the impact sensor, which enables the system to deploy the Supplemental Restraint System (SRS) components. If an ORC module 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. Disconnect and isolate the battery negative cable. Wait two minutes for the system capacitor to discharge.
2. Remove and save the six lower storage bin retaining push pins.
3. Remove and save the cup holder.
4. Remove and save the right side center stack bracket (Figure 1)
5. If equipped, carefully relocate the right side floor air duct (Figure 2).
6. Vehicles equipped with Electronic Stability Program (ESP), remove and save the ESP dynamics sensor from the right side of the ORC module mounting bracket.
7. Disconnect the yellow instrument panel wire harness connector and body wire harness connector from the ORC module yellow electrical receptacles located on the rearward facing side of the ORC module (Figure 2).
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 and save the three screws that secure the ORC module to the ORC mounting bracket.
9. Working from the right side of the floor panel transmission tunnel, lift the original ORC module far enough to disengage the locating pins and remove the original ORC module from the bracket. Discard the original ORC module.
10. Working from the right side of the floor panel transmission tunnel, carefully position the new ORC module to the ORC module mounting bracket.
11. Install and tighten the three screws that secure the ORC module to the ORC module mounting bracket. Tighten the screws to 88 in. lbs. (10 N.m).
12. Reconnect the body wire harness connector and the instrument panel wire harness connector to the ORC module yellow electrical receptacles located on the rearward facing side of the module (Figure 3). Be certain that the latches on both connectors are each fully engaged.
CAUTION:
The lever arms of the wire harness connectors for the ORC module MUST be in the unlatched position before they are inserted into their connector receptacles on the ORC module or they may become damaged.
13. Vehicles equipped with Electronic Stability Program (ESP), install the ESP dynamics sensor onto the right side of the ORC module mounting bracket.
14. If equipped, place the right side floor air duct back into position (Figure 2).
15. Install the right side center stack bracket (Figure 1).
16. Install the cup holder.
17. Install the center stack lower storage bin and six retaining push pins.
18. Do not reconnect the battery negative cable at this time. The Supplemental Restraint System (SRS) verification test procedure must be performed following ORC module replacement.
19. Perform the following Supplemental Restraints Verification Test procedure:
a. Be certain that the diagnostic scan tool contains the latest version of the proper diagnostic software. Connect the scan tool to the 16-way Data Link Connector (DLC).
b. Turn the ignition switch to the "ON" position.
c. Check to be certain that nobody is in the vehicle, then reconnect the battery negative cable.
d. Using the scan tool, read and record the active (current) Diagnostic Trouble Code (DTC) data.
e. Next, use the scan tool to read and record any stored (historical) DTC data.
20. New ORC modules are shipped in a "Locked Out" state and will set a B-2722 fault code "ORC LOCKED-ALL DEPLOYMENT DISABLED." Perform the following ORC Module Initialization procedure using the wiTECH scan tool:
a. Select the ORC icon from the vehicle view screen.
b. Select the "Miscellaneous Functions" tab.
c. Select "Initialize ORC" from the list.
d. Follow the screen prompts on the wiTECH screen.
NOTE:
This will erase the fault codes and initialize the ORC module.
21. Turn the ignition switch to the "OFF" position for 15 seconds, and then back to the "ON" position. Observe the airbag indicator in the instrument cluster. The airbag indicator lamp should illuminate for four to six seconds, and then go out. This indicates that the SRS is functioning normally and that the repairs are complete.
22. If not previously performed, Safety Recall K25 - Heating, Ventilation & Air Conditioning Drain Tube and Grommet must be performed at this time.
Refer to Safety Recall K25 Dealer Service Instructions for the service procedure, labor operation numbers, and labor time allowances.
WARNING:
Failure to perform Safety Recall K25, if required, could allow water from the HVAC unit to contaminate the new ORC module. Do not complete this recall without verifying on the VIP system that Safety Recall K25 has also been performed.