Procedures For Repair Operations
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.
- The safety belt pretensioner is a pyrotechnic device. Always wear safety glasses when repairing an air bag equipped vehicle and when handling a safety belt buckle pretensioner or safety belt retractor pretensioner. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
- Never probe the connectors on the safety canopy module. Doing so can result in safety canopy deployment.
- 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.
- Do not handle, move or change the original horizontal mounting position of the restraints control module (RCM) while the RCM is connected and the ignition switch is ON. Failure to follow these instructions may result in the inadvertent deployment of the safety canopy and risk of personal injury.
- To reduce the risk of personal injury, do not use any memory saver devices.
NOTE:
- If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.
- The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (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 restraints control module (RCM) fuse F2.19 (10A) 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 or RCM, 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 and C-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 1 minute.
7. Remove the 2 steering wheel back cover plugs (one shown).
8. Remove the 2 driver air bag module bolts (one shown).
9. Remove the driver air bag module.
1 Release the 2 retaining tabs. Disconnect the driver air bag module electrical connector.
- Label the driver air bag module squib number on the driver air bag module electrical connector before disconnecting.
2 Release the 2 retaining tabs. Disconnect the driver air bag module electrical connector.
- Label the driver air bag module squib number on the driver air bag module electrical connector before disconnecting.
3 Disconnect the horn switch electrical connector.
4 Remove the driver air bag module.
10. Attach the restraint system diagnostic tools to the clockspring electrical connectors at the top of the steering column.
11. Push in on the glove compartment sides, releasing the stops and lowering it out of the way.
12. Through the glove compartment opening, release the tab and disconnect the passenger air bag module electrical connector.
13. Attach the restraint system diagnostic tool to the vehicle harness side of the passenger air bag module electrical connector.
Vehicles without safety canopies
14. CAUTION: Do not deactivate the safety canopy module circuit by removing the safety canopy bridge resistor from the safety canopy electrical connector.
If the safety canopy 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 safety canopy electrical connector, a low resistance fault will be generated by the RCM.
Vehicles with safety canopies
15. Remove the RH C-pillar trim panel.
1 Pull out and release the retaining clips.
2 Pull out and release the retainer.
3 Lower the door opening weatherstrip, slide the C-pillar trim panel up, releasing the retainers and remove the C-pillar trim panel.
16. Disconnect the RH safety canopy electrical connector.
17. Attach the restraint system diagnostic tool to the vehicle harness side of the RH safety canopy electrical connector.
18. Remove the LH C-pillar trim panel.
1 Pull out and release the retaining clips.
2 Pull out and release the retainer.
3 Lower the door opening weatherstrip, slide the C-pillar trim panel up, releasing the retainers and remove the C-pillar trim panel.
19. Disconnect the LH safety canopy electrical connector.
20. Attach the restraint system diagnostic tool to the vehicle harness side of the LH safety canopy electrical connector.
All vehicles
21. Install the RCM fuse F2.19 (10A) to the CJB.
22. Connect the battery ground cable.
Reactivation
WARNING: To reduce the risk of serious personal injury, read and follow all warning, cautions, and noted at the beginning of the deactivation procedure.
All vehicles
1. Remove the RCM fuse F2.19 (10A) from the CJB.
2. Disconnect the battery ground cable and wait at least 1 minute.
Vehicles with safety canopies
3. Remove the restraint system diagnostic tool from the LH safety canopy vehicle harness electrical connector.
4. Connect the LH safety canopy electrical connector.
5. WARNING: Any time the safety canopy has deployed, the headliner, and all A, B and C pillar upper trim panels and attaching hardware must be replaced along with any other damaged components and hardware. Failure to do so may result in personal injury in the event of a safety canopy deployment.
NOTE: Make sure the safety belt webbing is not twisted prior to installation.
Align the LH C-pillar trim panel hook to the opening in the sheet metal.
- The safety belt shoulder height adjuster and the C-pillar trim panel sliding insert must be at their most upward position of travel to aid installation.
6. Position the LH C-pillar trim panel.
1 With the hook aligned to the sheet metal, position the top of the C-pillar trim panel to the sheet metal.
- Make sure the safety belt shoulder height adjuster and the C-pillar trim panel sliding insert are at their most upward position of travel to aid installation.
2 Align and slide down, engaging the front upper trim panel retainer.
- The C-pillar trim panel sliding insert circular recess must align to the safety belt guide bolt.
3 Align and push in, engaging the front lower trim panel retainer.
7. Push in on the C-pillar trim panel, seating the retainers.
- After the C-pillar trim panel is reinstalled, make sure the safety belt shoulder height adjuster button activation and the vertical movement of the trim panel sliding insert is smooth.
Vehicles with safety canopies
8. Remove the restraint system diagnostic tool from the RH safety canopy vehicle harness electrical connector.
9. Connect the RH safety canopy electrical connector.
10. WARNING: Any time the safety canopy has deployed, the headliner, and all A, B and C pillar upper trim panels and attaching hardware must be replaced along with any other damaged components and hardware. Failure to do so may result in personal injury in the event of a side air curtain deployment.
NOTE: Make sure the safety belt webbing is not twisted prior to installation.
Align the RH C-pillar trim panel hook to the opening in the sheet metal.
- The safety belt shoulder height adjuster and the C-pillar trim panel sliding insert must be at their most upward position of travel to aid installation.
11. Position the RH C-pillar trim panel.
1 With the hook aligned to the sheet metal, position the top of the C-pillar trim panel to the sheet metal.
- Make sure the safety belt shoulder height adjuster and the C-pillar trim panel sliding insert are at their most upward position of travel to aid installation.
2 Align and slide down, engaging the front upper trim panel retainer.
- The C-pillar trim panel sliding insert circular recess must align to the safety belt guide bolt.
3 Align and push in, engaging the front lower trim panel retainer.
12. Push in, seating the retainers.
- After the C-pillar trim panel is reinstalled, make sure the safety belt shoulder height adjuster button activation and the vertical movement of the trim panel sliding insert is smooth.
All vehicles
13. Remove the restraint system diagnostic tool from the vehicle harness side of the passenger air bag module electrical connector.
14. Connect the passenger air bag module electrical connector.
15. Close the glove compartment.
16. Remove the restraint system diagnostic tools from the clockspring electrical connector at the top of the steering column.
17. Position the driver air bag module to the steering wheel.
1 Connect the horn switch electrical connector.
2 CAUTION: The clockspring electrical connectors are unique and cannot be reversed when connected to the driver air bag module. Match the electrical connector key to the keyway in the driver air bag module. Do not force the electrical connectors into the driver air bag module.
Connect the driver air bag module electrical connectors as noted during removal.
3 Position the driver air bag module to the steering wheel.
18. Install the 2 driver air bag module bolts (1 shown).
- Tighten to 9 Nm (80 lb-in).
19. Install the 2 steering wheel back cover plugs (1 shown).
20. 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.
21. Turn the ignition switch from OFF to ON.
22. Install the RCM fuse F2.19 (10A) to the CJB.
23. 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.
24. 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 6 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 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 restraints control module using a scan tool.
Vehicles with safety canopies
25. Check the active restraints for correct operation.