Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

1. Disable the SIR. Refer to SIR Disabling and Enabling.

2. Remove the center pillar lower trim panel. Refer to Center Pillar Lower Trim Panel Replacement.

3. Fully deploy the pretensioner before disposal. Refer to Pretensioner Handling and

Scrapping.

1

Bolt, Seat Belt Retractor

Tighten: 52 N. m (38 lb ft)

2

Adjuster, Shoulder Belt Guide

3

Bolt, Seat Belt Retractor

Tighten: 52 N. m (38 lb ft)

4

Bolt, Seat Belt Retractor

Tighten: 52 N. m (38 lb ft)

5

Belt Assembly, Retractor Side

REPAIRS AND INSPECTIONS REQUIRED AFTER A COLLISION Accident With or Without Inflator Module Deployment - Component Inspections

CAUTION: Proper operation of the SIR sensing system requires that any repairs to the vehicle structure return the vehicle structure to the original production configuration. Not properly repairing the vehicle structure could cause non-deployment in a

collision or deployment for conditions less severe than intended.

After any collision, inspect the following components as indicated. If you detect any damage, replace the component. If you detect any damage to the mounting points or mounting hardware, repair or replace the mounting points and mounting hardware as needed.

• The steering column-Perform the steering column accident damage checking procedures. Refer to Steering Column Accident Damage Inspection.

• The instrument panel (I/P) knee bolsters and mounting points-Inspect the knee bolsters for bending, twisting, buckling or any other type of damage.

• The I/P brackets, braces, etc.-Inspect for bending, twisting, buckling or any other type of damage.

• The seat belts-Perform the seat belt operational and functional checks. Refer to Operational and Functional Checks.

• The I/P mounting points and brackets-Inspect for bending, twisting, buckling or any other type of damage.

• The roof rail and roof rail module mounting points-Inspect for bending, twisting, buckling or any other type of damage.

• The seats and seat mounting points-Inspect for bending, twisting, buckling or any other type of damage.

• Passenger seat bottom equipped with Passenger Presence System (PPS)-Check for any DTCs or problems that may cause the PPS not to function properly.

Accident With Frontal Air Bag Deployment - Component Replacement and Inspections

After a collision involving air bag deployment, replace the following components. If you detect any damage, replace the component. If you detect any damage to the mounting points or mounting hardware, repair or replace the mounting points and mounting hardware as needed.

IMPORTANT: The front passenger seat is equipped with a PPS, which detects an occupant. If the requirements for disabling the I/P air bag are met then the PPS will communicate with the SDM to disable/turn off the I/P air bag, even in a accident. For more information on the PPS refer to SIR System Description and Operation.

• Inflatable restraint front end sensors

• Inflatable restraint I/P module, if deployed and after performing the necessary inspections listed above

• Inflatable restraint sensing and diagnostic module (SDM)

• Inflatable restraint steering wheel module

• Inflatable restraint steering wheel module coil

• Seat belt pretensioners

Perform additional inspections on the following components:

• Steering wheel module coil and the coil wiring pigtail-Inspect for melting, scorching or other damage due to excessive heat.

• Mounting points or mounting hardware for the I/P module, steering wheel module, SDM, front end sensors, seat belt pretensioners and vehicle rollover sensor-Inspect for any damage and repair or replace each component as needed.

• Passenger Presence System (PPS) for damage to the wiring or pressure system

Accident With Side Air Bag Deployment - Component Replacement and Inspections

After a collision involving side air bag deployment, replace the following components:

• Inflatable restraint roof rail module, on the side of the impact.

• Inflatable restraint side impact sensors (SIS) (left/right), on the side of the impact

• Inflatable restraint side impact module (left/right), on the side of the impact

• Inflatable restraint SDM

• Seat belt pretensioner, on the side of impact.

Perform additional inspections on the following components:

• Mounting points or mounting hardware for the SIS, roof rail module (left/right) and seat belt pretensioner on the side of impact-Inspect for any damage and repair or replace each component as needed.

• Mounting points or mounting hardware for the SDM and vehicle rollover sensor-Inspect for any damage and repair or replace each component as needed.

Sensor Replacement Guidelines

The SIR/side air bag sensor replacement policy requires replacing sensors in the area of accident damage. The area of accident damage is defined as the portion of the vehicle which is crushed, bent or damaged due to a collision. An example of this would be a moderate collision where the front of the vehicle impacts a tree, if the vehicle has an SIR sensor mounted forward of the

radiator, replace the SIR sensor.

• Replace the sensor whether or not the air bags have deployed.

• Replace the sensor even if the sensor appears to be undamaged.

Sensor damage which is not visible, such as slight bending of the mounting bracket or cuts in the wire insulation, can cause improper operation of the SIR/side air bag sensing system. Do not try to determine whether the sensor is undamaged. Replace the sensor. Also, if you follow a diagnostic trouble code (DTC) table and a malfunctioning sensor is indicated, replace the sensor.

INFLATOR MODULE HANDLING AND SCRAPPING Tools Required

• J 39401-B SIR Deployment Fixture. See Special Tools.

• J 38826 SIR Deployment Harness. See Special Tools.

• An appropriate pigtail adapter

CAUTION: Refer to SIR Inflator Module Handling and Storage Caution .

Live and Undeployed Inflator Module

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 60: View Of Proper Handling Of Undeployed Inflator Module Courtesy of GENERAL MOTORS CORP.

Take special care when handling or storing an undeployed inflator module. An inflator module deployment produces a rapid generation of gas. This may cause the inflator module or an object in front of the inflator module, to project through the air in the event of an unlikely deployment.

Dual Stage Inflator Module

Dual stage inflator modules have two deployment stages. If stage 1 was used to deploy a dual stage inflator module, stage 2 may still be active. Therefore, a deployed dual stage inflator module must be treated as an active module. If disposal of a dual stage module is required, both deployment loops must be energized to deploy the air bag.

Scrapping Procedure

During the course of a vehicle's useful life, certain situations may arise which will require the disposal of a live and undeployed inflator module. Do NOT dispose a live and undeployed inflator module through normal disposal channels until the inflator module has been deployed.

Do not deploy the inflator module in the following situations:

• After replacement of an inflator module under warranty, the inflator module may need to be returned undeployed to the manufacturer.

• If the vehicle is the subject of a Product Liability report, GM-1241, related to the SIR system and is subject to a preliminary investigation, do NOT alter the SIR system in any manner.

• If the vehicle is involved in a campaign affecting the inflator modules, follow the instructions in the Campaign Service Bulletin for proper SIR handling procedures.

Deployment Procedures

You can deploy the inflator module either inside or outside of the vehicle. The method used depends upon the final disposition of the vehicle. Review the following procedures in order to determine which will work best in a given situation:

Deployment Outside Vehicle - Steering Wheel Module, I/P Module and Roof Rail Module

Deploy the inflator module outside of the vehicle when the vehicle will be returned to service. Situations that require deployment outside of the vehicle include the following:

• Using the SIR diagnostics, you determine that the inflator module is malfunctioning.

• The inflator module is cosmetically damaged, scratched or ripped.

• The inflator module pigtail is damaged.

• The inflator module connector is damaged.

• The inflator module connector terminals are damaged.

Deployment and disposal of a malfunctioning inflator module is subject to any required retention period.

CAUTION: In order to prevent accidental deployment and the risk of personal injury, do not dispose of an undeployed inflator module as normal shop waste. Undeployed inflator modules contain substances that could cause severe illness or personal injury if their sealed containers are damaged during disposal. Use the following deployment procedures to safely dispose of an undeployed inflator module. Failure to observe the following disposal methods may be a violation of federal, state or local laws.

1. Turn OFF the ignition.

2. Remove the ignition key.

3. Put on safety glasses.

4. Remove the inflator module.

• If you are removing the steering wheel module, refer to Inflatable Restraint Steering Wheel Module Replacement.

• If you are removing the I/P module, refer to Inflatable Restraint Instrument Panel Module Replacement.

• If you are removing a roof rail module, refer to Roof Side Rail Inflatable Restraint Module Replacement - Front.

CAUTION: Refer to SIR Inflator Module Handling and Storage

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Caution.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 61: Illustrating Proper Storage Of Inflator Module Courtesy of GENERAL MOTORS CORP.

5. Place the inflator module on a work bench, with the vinyl trim cover facing up and away from the surface.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 62: Clearance For Deployment Of Inflator Module Courtesy of GENERAL MOTORS CORP.

---------------------- 1.85 m (6 ft) ►

6. Clear a space on the ground about 1.85 m (6 ft) in diameter for deployment of the inflator module or deployment fixture. If possible, use a paved, outdoor location free of activity. Otherwise, use a space free of activity on the shop floor. Ensure you have sufficient ventilation.

7. Clear the area of loose or flammable objects.

IMPORTANT: Dual stage deployments are only used in steering wheel and I/P inflator modules. If stage 1 was used to deploy a dual stage inflator module, stage 2 may still be active. If disposal of a dual stage module is required, both deployment loops must be energized to deploy the air bag.

8. If you are deploying a steering wheel inflator module, place the inflator module in the center of the space.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 63: Identifying I/P Module Components Courtesy of GENERAL MOTORS CORP.

9. When deploying an I/P inflator module, perform the following instructions:

1. Place the J 39401-B in the center of the cleared area. See Special Tools.

2. Fill the deployment fixture with water or sand.

3. Using the proper nuts and bolts, mount the I/P module (1) to the deployment fixture (2), with the vinyl trim facing up.

4. Securely tighten all fasteners that hold the I/P module (1) to the deployment fixture (2).

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 64: Identifying Fasteners Holding Side Impact Module To Deployment Fixture Courtesy of GENERAL MOTORS CORP.

2

3

10. When deploying a roof rail module, perform the following instructions:

1. Place the J 39401-B (3) in the center of the cleared area. See Special Tools.

2. Fill the deployment fixture with water or sand to provide sufficient stabilization of fixture during deployment.

3. Adjust and secure the fixture arms (4) to the deployment fixture (3), using the proper nuts and bolts.

4. Attach the roof rail module in the deployment fixture and securely tighten all fasteners.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 65: Identifying SIR Deployment Harness & Adapter Courtesy of GENERAL MOTORS CORP.

11. Inspect the SIR deployment harness and the appropriate pigtail adapter (2) for damage. Replace as needed.

12. Short the 2 SIR deployment harness leads (1) together using one banana plug seated into the other.

13. Connect the appropriate pigtail adapter (2) to the SIR deployment harness (1).

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 66: Extending SIR Deployment Harness & Adapter Courtesy of GENERAL MOTORS CORP.

14. Extend the SIR deployment harness and adapter to the full length from the deployment fixture or area.

IMPORTANT: On a dual stage inflator module, both connectors must be

attached to the deployment harness adapter. This will ensure that both stage 1 and stage 2 of the deployment loops are energized, regardless of the deployment state.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

3

Fig. 67: Inflator Module & SIR Deployment Harness Adapter Courtesy of GENERAL MOTORS CORP.

15. Connect the inflator module (1) to the adapter (2) on the SIR deployment harness (3).

IMPORTANT: . The rapid expansion of gas involved with deploying an

inflator module is very loud. Notify all the people in the immediate area that you intend to deploy the inflator module.

• When the inflator module deploys, the deployment fixture may jump about 30 cm (1 ft) vertically. This is a normal reaction of the inflator module due to the force of the rapid expansion of gas inside the inflator module.

• If you are deploying a dual stage inflator module with stage 1 already deployed, the fixture may not move and the noise may have been reduced.

16. Clear the area of people.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 68: Separating Banana Plugs Courtesy of GENERAL MOTORS CORP.

17. Separate the 2 banana plugs on the SIR deployment harness that were shorted together earlier in the procedure.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 69: Connecting SIR Deployment Harness Wires To Power Source Courtesy of GENERAL MOTORS CORP.

18. Place a 12-volt minimum/2-amp minimum power source, such as a vehicle battery, near the shorted end of the harness.

19. Connect the SIR deployment harness wires to the power source. Deployment of the inflator module will occur when contact is made.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 70: View Of Deployment Harness Leads Courtesy of GENERAL MOTORS CORP.

20. Disconnect the SIR deployment harness from the power source after the inflator module deploys.

21. If the inflator module did not deploy, disconnect the adapter and discontinue the procedure and contact the Technical Assistance Group.

If deployment was successful, proceed to the following steps.

CAUTION: After deployment, the metal surfaces of the SIR component may be very hot. To help avoid a fire or personal injury: • Allow sufficient time for cooling before touching any metal surface of the SIR component.

• Do not place the deployed SIR component near any flammable objects.

22. Seat one banana plug into the other in order to short the deployment harness leads.

Fastener Tightening Specifications: Refer to Fastener Tightening Specifications. Preliminary Procedure

Fig. 71: Disposing Of Deployed Inflator Module Courtesy of GENERAL MOTORS CORP.

23. Put on a pair of shop gloves.

24. Disconnect the pigtail adapter from the inflator module as soon as possible.

25. Inspect the pigtail adapter and the SIR deployment harness. Replace as needed.

26. Dispose of the deployed inflator module through normal refuse channels.

27. Wash your hands with a mild soap.

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