Supplemental Restraint System (SRS) Deactivation and Reactivation
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) DEACTIVATION AND REACTIVATIONSpecial Tool(s):
Special Tool(s)
Deactivation
WARNING:
- Always wear safety glasses when repairing an air bag supplemental restraint system (SRS) vehicle and when handling an air bag module. This will reduce the risk of injury in the event of an accidental deployment.
- Carry a live air bag module with the air bag and trim cover pointed away from your body. This will reduce the risk of injury in the event of an accidental deployment.
- Do not set a live air bag module down with the trim cover face down. This will reduce the risk of injury in the event of an accidental deployment.
- After deployment, the air bag surface can contain deposits of sodium hydroxide, a product of the gas generant combustion that is irritating to the skin. Wash your hands with soap and water afterwards.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- To reduce the risk of personal injury, do not use any memory saver devices.
NOTE:
- The air bag warning lamp illuminates when the restraints control module (RCM) fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a SRS fault.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
All vehicles
1. Turn all vehicle accessories OFF.
2. Turn the ignition switch to OFF.
3. At the central junction box (CJB), located below the LH side of the instrument panel, remove the cover and the restraints control module (RCM) fuse 60 (7.5A) from the CJB.
4. Turn the ignition ON and visually monitor the air bag indicator for at least 30 seconds. The air bag indicator will remain lit continuously (no flashing) if the correct RCM fuse has been removed. If the air bag indicator does not remain lit continuously, remove the correct RCM fuse before proceeding.
5. Turn the ignition OFF.
6. WARNING: To avoid accidental deployment and possible personal injury, the backup power supply must be depleted before repairing or replacing any front or side air bag supplemental restraint system (SRS) components and before servicing, replacing, adjusting or striking components near the front or side air bag sensors, such as doors, instrument panel, console, door latches, strikers, seats and hood latches.
The side impact sensors (if equipped) are located at or near the base of the B-pillars.
To deplete the backup power supply energy, disconnect the battery ground cable and wait at least one minute. Be sure to disconnect auxiliary batteries and power supplies (if equipped).
Disconnect the battery ground cable and wait at least one minute.
7. CAUTION: To prevent damage to the driver air bag module, wiring harness or steering wheel do not insert any tool between the driver air bag module and the steering wheel.
NOTE: Turn the steering wheel to access the air bag captive bolts.
Remove the driver air bag module.
1 From behind the steering wheel, remove the driver air bag module bolts.
2 Release the driver air bag module retaining clips.
8. Remove the driver air bag module.
- Disconnect the driver air bag module electrical connector.
9. Connect restraint system diagnostic tool to the driver air bag module electrical connector on the clockspring.
10. Open the glove compartment door fully.
11. Remove the ventilation pipe.
- Detach the retaining clip.
12. Detach the defroster pipe from the heater housing and defroster vent.
13. Remove the passenger air bag module trim cover retaining bolts.
14. CAUTION: Use a protective covering (shop towel, etc.) between the instrument panel, passenger air bag trim cover and the trim tool to prevent damage to the instrument panel when removing the passenger air bag trim cover.
Detach the passenger air bag module trim cover from the instrument panel.
- Use a trim tool to carefully release the retaining clips, starting at the front outer edge.
15. Remove the passenger air bag module trim cover.
1 Lift the outer edge.
2 Lift the cover moving it towards the windshield to disengage the retaining clips.
16. Remove the bolts and the passenger air bag module and reinforcement bracket from the instrument panel.
17. Remove the passenger air bag module.
- Disconnect the passenger air bag module electrical connectors.
18. Connect the restraint system diagnostic tools to the vehicle harness side of the passenger air bag module electrical connectors.
Vehicles with seat side air bags
19. Disconnect the passenger seat electrical connector located under the seat.
20. Connect the restraint system diagnostic tool to the vehicle harness side of the passenger seat side air bag module electrical connector.
21. Disconnect the driver seat electrical connector located under the seat.
22. Connect the restraint system diagnostic tool to the vehicle harness side of the driver seat side air bag module electrical connector.
All vehicles
23. Install the restraints control module fuse 60 (7.5A) to the central junction box (CJB).
24. Connect the battery ground cable.
Reactivation
All vehicles
1. Remove the restraints control module fuse 60 (7.5A) from the central junction box (CJB).
2. Disconnect the battery ground cable and wait at least one minute.
Vehicles with seat side air bags
3. Remove the restraint system diagnostic tool from the vehicle harness side of the driver seat side air bag module electrical connector.
4. Connect the driver seat electrical connector.
5. Remove the restraint system diagnostic tool from the vehicle harness side of the passenger seat side air bag module electrical connector.
6. Connect the passenger seat electrical connector.
All vehicles
7. Loosen the passenger air bag module floating bracket retaining nuts.
8. Remove the restraint system diagnostic tools from the vehicle harness side of the passenger air bag module electrical connectors.
9. Install the passenger air bag module.
- Connect the passenger air bag module electrical connectors.
10. Install the passenger air bag module and reinforcement bracket to the instrument panel and install the bolts.
- Tighten to 11 Nm (8 lb-ft).
11. NOTE: Feed the trim cover brackets down through the passenger air bag module and floating bracket.
Install the passenger air bag module trim cover.
12. NOTE: Do not fully tighten the passenger air bag module trim cover bolts at this time.
Install the passenger air bag module trim cover retaining bolts.
13. CAUTION: Make sure that all the passenger air bag module trim cover retaining clips are correctly engaged and that the trim cover is flush with the instrument panel.
Tighten the passenger air bag module floating bracket retaining bolts.
- Tighten to 11 Nm (8 lb-ft).
14. Tighten the passenger air bag module trim cover retaining bolts.
- Tighten to 11 Nm (8 lb-ft).
15. Attach the defroster pipe to the heater housing and defroster vent.
16. Install the ventilation pipe.
- Attach the retaining clip.
17. Close the glove compartment door.
18. Remove the restraint system diagnostic tool from the driver air bag module electrical connector at the clockspring.
19. Install the driver air bag module.
- Connect the driver air bag module electrical connector.
20. Install the driver air bag module to the steering wheel.
1 Attach the driver air bag module retaining clips.
2 Install the driver air bag module bolts.
- Tighten to 5 Nm (44 lb-in).
21. WARNING: The restraint system diagnostic tool is for restraint system service only. Remove from vehicle prior to road use. Failure to remove could result in injury and possible violation of vehicle safety standards.
Make sure all restraint system diagnostic tool(s) that may have been installed during the repair have been removed from the vehicle and all SRS components are connected.
22. Turn the ignition switch from OFF to ON.
23. Install the RCM fuse 60 (7.5A) to the CJB and install the cover.
24. WARNING: Be sure that nobody is in the vehicle and that there is nothing blocking or set in front of any air bag module when the battery ground cable is connected.
Connect the battery ground cable.
25. Prove out the supplemental restraint system (SRS) as follows:
Turn the ignition switch from ON to OFF. Wait 10 seconds, then turn the switch back to ON and visually monitor the air bag indicator with the air bag modules installed. The air bag indicator will light continuously for approximately 6 seconds and then turn off. If an air bag supplemental restraint system (SRS) fault is present, the air bag indicator will:
- fail to light.
- remain lit continuously.
- flash at a 5 Hz rate (RCM not configured).
The air bag indicator may not illuminate until approximately 30 seconds after the ignition switch has been turned from the OFF to the ON position. This is the time required for the restraints control module (RCM) to complete the testing of the SRS. If the air bag indicator is inoperative and a SRS fault exists, a chime will sound in a pattern of 5 sets of 5 beeps. If this occurs, the air bag indicator and any SRS fault discovered must be diagnosed and repaired.
Clear all continuous DTCs from the RCM using a scan tool.