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 serious personal 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 serious personal 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. Failure to follow this instruction may result in serious personal injury.
- Never probe the connectors on the air bag module. Failure to follow this instruction may result in air bag deployment, which may result in personal injury.
- Never probe the connectors on the safety canopy module. Failure to follow this instruction may result in safety canopy deployment, which may result in personal injury.
- The safety belt pretensioners are pyrotechnic devices. 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. Failure to follow these instructions may result in pretensioner or air bag deployment which may result in serious personal injury.
- To reduce the risk of personal injury, do not use any memory saver devices.
NOTE:
- The air bag warning indicator 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 supplemental restraints system (SRS) fault.
- The supplemental restraints system (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 smart power distribution junction box (SPDJB), located in the LH lower kick panel, remove the lower kick panel fuse cover and the restraints control module (RCM) fuse 46 (7.5A) from the SPDJB.
4. Turn the ignition ON and visually monitor the air bag warning indicator for at least 30 seconds. The air bag warning indicator will remain lit continuously (no flashing) if the correct RCM fuse has been removed. If the air bag warning 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 installing any new front or side air bag supplemental restraint system (SRS) components and before servicing, installing, 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 front impact severity sensors are located on the radiator support under the front bumper cover.
The first row side impact sensors are located at or near the base of the B-pillars.
The second row side impact sensors are located on the 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 one minute.
7. NOTE: Repeat this step for both locking pins.
Using a 3-mm Allen wrench or a suitable tool through the access hole on the backside of the steering wheel, position the tool against the spring clip and push in, disengaging the clip from the locking pin. With the spring clip disengaged from the locking pin, gently pull back on that side of the driver air bag module to release it from the steering wheel.
8. CAUTION: Do not pull the driver air bag module electrical connectors out by the locking buttons. Damage to the locking buttons may occur.
Using a small screwdriver as shown, lift up and release the locking buttons on the driver air bag module electrical connectors. With the locking buttons released, remove the electrical connectors and the driver air bag module.
9. Open and lower the glove compartment door. Then unhook the glove compartment door from the instrument panel (I/P).
- If equipped, detach the glove compartment door dampener.
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10. Remove the 2 passenger air bag module bolts from the cross vehicle beam bracket.
11. CAUTION: Do not handle the passenger air bag module by grabbing the edges of the deployment doors. Damage to the air bag module may occur.
Through the glove compartment opening, release the 4 LH side deployment door clips. Then release the forward-most 5 clips and separate the deployment door and passenger air bag module from the I/P.
12. Using a small screwdriver as shown, lift up and release the locking button on the RH passenger air bag module electrical connector.
13. CAUTION: Do not pull the passenger air bag module electrical connector out by the locking button. Damage to the locking button may occur.
With the RH locking button released, remove the RH electrical connector.
14. Using a small screwdriver as shown, lift up and release the locking button on the LH passenger air bag module electrical connector.
15. CAUTION: Do not pull the passenger air bag module electrical connector out by the locking button. Damage to the locking button may occur.
With the LH locking button released, remove the LH electrical connector and remove the passenger air bag module.
MKX
16. Pull straight out to release the 5 retaining clips and remove the RH I/P finish panel.
17. Remove the screw for the LH duct assembly bracket from the front of the I/P.
18. Through the glove compartment opening, remove the screw and the LH duct assembly.
19. Through the glove compartment opening, remove the screw and the RH duct assembly.
20. Remove the 4 bolts and the passenger air bag module support bracket.
21. Remove the 3 nuts from the passenger air bag module.
22. CAUTION: Do not allow the passenger air bag module to hang from the wiring harness. Damage to the wiring harness and connectors may occur.
Lower the rear of the passenger air bag module off the 3 mounting studs. Move the passenger air bag module rearward to release the 7 hooks from the I/P and rest the module on the cross vehicle beam.
23. Using a small screwdriver as shown, lift up and release the locking button on the LH passenger air bag module electrical connector.
24. CAUTION: Do not pull the passenger air bag module electrical connector out by the locking button. Damage to the locking button may occur.
With the LH locking button released, remove the LH electrical connector from the passenger air bag module.
25. Using a small screwdriver as shown, lift up and release the locking button on the RH passenger air bag module electrical connector.
26. CAUTION: Do not pull the passenger air bag module electrical connector out by the locking button. Damage to the locking button may occur.
With the RH locking button released, remove the RH electrical connector. Remove the passenger air bag module from the glove compartment opening.
All vehicles
27. From under the rear of the front passenger seat, slide and disengage the passenger seat side air bag module electrical connector locking clip, and then release the tab and disconnect the passenger seat side air bag module electrical connector.
28. Remove the passenger side D-pillar trim panel.
29. CAUTION: Do not pull the passenger safety canopy module electrical connector out by the locking button. Damage to the locking button may occur.
With the locking button released, remove the electrical connector from the passenger safety canopy module.
30. Remove the driver side D-pillar trim panel.
31. CAUTION: Do not pull the driver safety canopy module electrical connector out by the locking button. Damage to the locking button may occur.
With the locking button released, remove the electrical connector from the driver safety canopy module.
32. From under the rear of the driver seat, detach the driver seat side air bag module electrical connector from the seat cushion frame. Then slide and disengage the driver seat side air bag module electrical connector locking clip, and then release the tab and disconnect the driver seat side air bag module electrical connector.
33. Install RCM fuse 46 (7.5A) to the SPDJB.
34. Connect the battery ground cable.
Reactivation
All vehicles
1. Remove RCM fuse 46 (7.5A) from the SPDJB.
2. Disconnect the battery ground cable and wait at least one minute.
3. Connect the driver seat side air bag module electrical connector and then slide and engage the seat side air bag electrical connector locking clip. Then attach the driver seat side air bag module electrical connector to the seat cushion frame.
4. CAUTION:
- Do not install the safety canopy module electrical connector by the locking button. Damage to the locking button may occur.
- The safety canopy module electrical connector locking button must be in the released position when the connector is being installed or connector damage may occur.
- The safety canopy module electrical connector is unique and cannot be reversed when connected to the safety canopy module. Match the electrical connector key to the keyway in the safety canopy module. Do not force the electrical connector into the safety canopy module. Damage to the connector or component may occur.
With the locking button released, install the driver safety canopy module electrical connector fully into the driver safety canopy module and seat the locking button.
5. Install the driver side D-pillar trim panel.
6. CAUTION:
- Do not install the safety canopy module electrical connector by the locking button. Damage to the locking button may occur.
- The safety canopy module electrical connector locking button must be in the released position when the connector is being installed or connector damage may occur.
- The safety canopy module electrical connector is unique and cannot be reversed when connected to the safety canopy module. Match the electrical connector key to the keyway in the safety canopy module. Do not force the electrical connector into the safety canopy module. Damage to the connector or component may occur.
With the locking button released, install the passenger safety canopy module electrical connector fully into the passenger safety canopy module and seat the locking button.
7. Install the passenger side D-pillar trim panel.
8. Connect the passenger seat side air bag module electrical connector and then slide and engage the seat side air bag electrical connector locking clip.
MKX
9. CAUTION:
- Do not install the passenger air bag module electrical connectors by the locking buttons. Damage to the locking buttons may occur.
- The passenger air bag module electrical connector locking buttons must be in the released position when the connector is being installed or connector damage may occur.
- The passenger air bag module electrical connectors are unique and cannot be reversed when connected to the passenger air bag module. Match the electrical connector key to the keyway in the passenger air bag module. Do not force the electrical connectors into the passenger air bag module. Damage to the connector or component may occur.
NOTE: RH side shown, LH side similar.
Position the passenger air bag module on the cross vehicle beam. With the locking buttons released, install the 2 passenger air bag module electrical connectors fully into the passenger air bag module and seat the locking buttons.
10. NOTE: During the passenger air bag module installation, make sure all 7 of the hooks are fully seated in the I/P.
Install the passenger air bag module 7 hooks into the I/P. Raise the rear of the passenger air bag module onto the 3 mounting studs.
11. Install the 3 passenger air bag module nuts.
- Tighten to 7 Nm (62 lb-in).
12. NOTE: To avoid a squeak or rattle condition, install the passenger air bag module bracket and passenger air bag module bolts in this order.
Install the passenger air bag module support bracket and the 4 bolts.
1. Install the passenger air bag module support bracket and 2 bolts to the cross vehicle beam.
- Tighten to 8 Nm (71 lb-in).
2. Install the inboard passenger air bag module support bracket-to-passenger air bag module bolt.
- Tighten to 8 Nm (71 lb-in).
3. Install the outboard passenger air bag module support bracket-to-passenger air bag module bolt.
- Tighten to 8 Nm (71 lb-in).
13. Install the screw and the RH duct assembly.
14. Install the screw and the LH duct assembly.
15. Install the screw for the LH duct assembly bracket in the front of the I/P.
16. NOTE: Make sure the RH I/P finish panel 5 retaining clips are fully seated in the I/P.
Install the RH I/P finish panel.
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17. CAUTION:
- Do not install the passenger air bag module electrical connectors by the locking buttons. Damage to the locking buttons may occur.
- The passenger air bag module electrical connector locking buttons must be in the released position when the connector is being installed or connector damage may occur.
- The passenger air bag module electrical connectors are unique and cannot be reversed when connected to the passenger air bag module. Match the electrical connector key to the keyway in the passenger air bag module. Do not force the electrical connectors into the passenger air bag module. Damage to the connector or component may occur.
NOTE: RH side shown, LH side similar.
With the locking buttons released, install the 2 passenger air bag module electrical connectors fully into the passenger air bag module and seat the locking buttons.
18. CAUTION: Do not handle the passenger air bag module by grabbing the edges of the deployment doors. Damage to the air bag module may occur.
NOTE: During air bag module installation, make sure all the deployment door clips are fully seated in the I/P.
Install the passenger air bag module deployment door rear-most clips into the I/P first. Then install the side deployment door clips working around to the forward-most clips seating each of them fully into the I/P.
19. NOTE: To avoid a squeak or rattle condition, install the 2 passenger air bag module bolts in this order.
Install the passenger air bag module 2 bolts.
1. Install the inboard passenger air bag module bolt.
- Tighten to 8 Nm (71 lb-in).
2. Install the outboard passenger air bag module bolt.
- Tighten to 8 Nm (71 lb-in).
All vehicles
20. Hook the glove compartment door to the I/P. Close the glove compartment door.
- If equipped, attach the glove compartment door dampener.
21. CAUTION:
- Do not install the driver air bag module electrical connectors by the locking buttons. Damage to the locking buttons may occur.
- The driver air bag module electrical connector locking buttons must be in the released position when the connector is being installed or connector damage may occur.
- The passenger air bag module electrical connectors are unique and cannot be reversed when connected to the passenger air bag module. Match the electrical connector key to the keyway in the passenger air bag module. Do not force the electrical connectors into the passenger air bag module. Damage to the connector or component may occur.
With the locking buttons released, install the driver air bag module electrical connectors fully into the driver air bag module and seat the locking buttons.
22. NOTE: Audible clicks will be heard when both wire clips are seated in the driver air bag module.
Align the driver air bag module locking pins to the steering wheel and, while pushing inward, seat the 2 driver air bag module locking pins to the steering wheel wire clips.
- When the 2 locking pins are seated in place, there should be an even gap between the driver air bag module trim cover and the steering wheel.
23. Turn the ignition switch from OFF to ON.
24. Install RCM fuse 46 (7.5A) to the SPDJB and install the lower kick panel fuse cover.
25. 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. Failure to follow this instructions may result in serious personal injury.
Connect the battery ground cable.
26. Prove out the 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 warning indicator with the air bag modules installed. The air bag warning indicator will light continuously for approximately 6 seconds and then turn off. If an air bag SRS fault is present, the air bag warning indicator will either:
- fail to light.
- remain lit continuously.
- flash at a 5 Hz rate (RCM not configured).
The air bag warning 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 RCM to complete the testing of the SRS. If the air bag warning indicator is inoperative and an SRS fault exists, a chime will sound in a pattern of 5 sets of 5 beeps. If this occurs, the air bag warning indicator will need to be repaired before diagnosis can continue.
Clear all continuous DTCs from the restraints control module using a scan tool.