Supplemental Restraint System (SRS) Deactivation and Reactivation
Supplemental Restraint System (SRS) Deactivation and Reactivation
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.
WARNING: 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.
WARNING: 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.
WARNING: 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.
WARNING: Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
WARNING: The safety belt buckle pretensioner and safety belt retractor pretensioner are pyrotechnic devices. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
WARNING: Vehicle sensor orientation is critical for proper system operation. If a vehicle equipped with an air bag supplemental restraint system (SRS) is involved in a collision, inspect the sensor mounting bracket and wiring pigtail for deformation. Replace and properly position the sensor or any other damaged supplemental restraint system (SRS) components whether or not the air bag is deployed.
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.
NOTE: After diagnosing or repairing an SRS, the restraint system diagnostic tools must be removed before operating the vehicle over the road.
NOTE: The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
All vehicles
1. Move and tilt the front seats to their highest and rearmost position.
2. Turn all vehicle accessories OFF.
3. Turn the ignition switch to OFF.
4. 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 F2.23 (10A) from the CJB. For additional information, refer to the Wiring Diagram Manual.
5. 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.
6. Turn the ignition OFF.
7. 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 (14301) and wait at least one minute.
8. Through the steering wheel access door, disconnect the driver air bag module electrical connector and attach the restraint system diagnostic tool.
9. Open the glove box to its fullest extent by pushing in on the tabs and release the glove compartment.
10. Through the glove box opening, remove the passenger air bag module retaining bolts.
11. Separate the passenger air bag module (044A74) and trim cover from the instrument panel (I/P).
1. Pull the left hand corner of the trim cover away from the I/P.
2. From left to right, slide across the seam between the trim cover and I/P, releasing the trim cover retaining clips.
3. Pull the passenger air bag module and trim cover away from the I/P, but do not remove it.
12. Remove the passenger air bag module and trim cover.
1. Disconnect the passenger air bag module electrical connector.
2. Remove the wire harness pin-type retainer from the passenger air bag module.
3. Remove the passenger air bag module.
13. Attach the restraint system diagnostic tool to the vehicle harness side of the passenger air bag module electrical connector.
Vehicles without side air bags
14. CAUTION: Do not deactivate the side air bag module circuit by removing the side air bag bridge resistor from the side air bag floor electrical connector.
If the side air bag bridge resistor is removed, an open circuit fault will be generated by the restraints control module (RCM).
If a restraint system diagnostic tool is installed at the side air bag floor connector, a low resistance fault will be generated by the RCM.
Vehicles with side air bags
15. Disconnect the passenger side air bag module electrical connector.
16. Attach the restraint system diagnostic tool to the vehicle harness side of the side air bag module electrical connector.
Vehicles with side air bags
17. Disconnect the driver side air bag module electrical connector.
18. Attach the restraint system diagnostic tool to the vehicle harness side of the side air bag module electrical connector.
19. Install the RCM Fuse F2.23 (10A) to the CJB.
20. Connect the battery ground cable.
Reactivation
All vehicles
1. Remove the RCM Fuse F2.23 (10A).
2. Disconnect the battery ground cable and wait at least one minute.
Vehicles with side air bags
3. Remove the restraint system diagnostic tool from the vehicle harness side of the driver side air bag module electrical connector.
4. Connect the driver side air bag module electrical connector.
Vehicles with side air bags
5. Remove the restraint system diagnostic tool from the vehicle harness side of the passenger side air bag module electrical connector.
6. Connect the passenger side air bag module electrical connector.
All vehicles
7. Remove the restraint system diagnostic tool from the vehicle harness side of the passenger air bag module electrical connector.
8. Make sure there are no foreign objects in the passenger air bag module alignment channels.
9. Remove or position anything out of the way that may be blocking the accessibility to the I/P alignment rails or holes.
10. Connect the passenger air bag module electrical connector.
1. Position the passenger air bag module.
2. Install the wire harness pin-type retainer to the passenger air bag module.
3. Connect the passenger air bag module electrical connector.
11. Position the passenger air bag module alignment channels to the alignment rails of the I/P.
12. Install the passenger air bag module and trim cover into the I/P.
NOTE: Left hand upper alignment pin shown, left hand lower alignment pin is similar.
Starting at the left hand side of the trim cover, install the upper and lower alignment pins into the I/P.
13. Working from left to right, install all the trim cover retaining tabs and alignment pins into the I/P.
When all channels and tabs are aligned correctly, there will be an even gap around the perimeter of the passenger air bag trim cover.
14. Through the glove box opening, install the passenger air bag module retaining bolts.
15. Close the glove box.
16. Remove the restraint system diagnostic tool and connect the clockspring electrical connector.
17. Close the access door.
18. 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.
19. Turn the ignition switch from OFF to ON.
20. Install the RCM fuse F2.23 (10A) to the CJB and install the cover.
21. 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.
22. Prove out the supplemental restraint system (SRS) as follows:
Turn the ignition key from ON to OFF. Wait 10 seconds, then turn the key 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 six seconds and then turn off. If an air bag supplemental restraint system (SRS) fault is present, the air bag indicator will either:
- fail to light.
- remain lit continuously.
- flash.
The flashing might not occur 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 five sets of five beeps. If this occurs, the air bag indicator and any SRS fault discovered must be diagnosed and repaired.
Clear all continuous DTCs from the restraints control module using a scan tool.