Tools Required
• | An appropriate pigtail adaptor |
Caution: Refer to SIR Inflator Module Handling and Storage Caution in the Preface section.
Live (Undeployed) Inflator Module
Take special care when handling or storing a live (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.
Scrapping Procedure
During the course of a vehicle's useful life, certain situations may arise
which will require the disposal of a live (undeployed) inflator module. Do not dispose
a live (undeployed) inflator module through normal disposal channels until the inflator
module has been deployed. The following information covers the proper procedures
for the disposing of a live (undeployed) inflator module.
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. When a vehicle is the subject of a product liability report,
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
The inflator module can be deployed 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 Side Impact
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 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: Refer to SIR Inflator Module Disposal Caution in the Preface section.
- Turn OFF the ignition.
- Remove the ignition key.
- Put on safety glasses.
- Remove the inflator module. Refer to the following:
Caution: Refer to SIR Inflator Module Handling and Storage Caution in the Preface section.
- Place the inflator module on a work bench
with the vinyl trim cover facing up and away from the work surface.
- Clear a space on the ground about 1.85 m
(6 ft) in diameter for deployment of the inflator module. If possible, use
a paved, outdoor location free of activity. Otherwise, use a space free of activity
on the shop floor. Make sure you have sufficient ventilation.
- Make sure no loose or flammable objects are in the area.
- When deploying a steering wheel inflator module, place the inflator module
in the center of the space.
- When deploying an I/P module, refer to
the following instructions:
• | Place the J 39401-B
SIR deployment fixture (2) in the center of the cleared area |
• | Fill the deployment fixture with water or sand. |
• | Mount the I/P module (1) in the deployment fixture (2) with the vinyl/plastic
trim facing up. |
• | To mount, use 4 M 6 bolts (6), nuts (8), and washers (7) in order
to properly secure the IP module (1) to the deployment fixture. |
• | Securely tighten all fasteners prior to deployment. |
- When deploying the side impact module -
LF, refer to the following instructions:
• | Place the J 39401-B
SIR deployment fixture (3) in the center of the cleared area. |
• | Fill the deployment fixture with water or sand. |
• | Mount the side impact module (1) in the deployment fixture (3) with the
vinyl/plastic trim cover facing up. |
• | Adjust and secure the J 39401-B
arms (4) to the deployment fixture (3). |
• | To mount, use 2 M 6 x 1.0 nuts (2) with washers in order to secure
the side impact module (1) to the deployment fixture arms (4). |
• | Securely tighten all fasteners prior to deployment. |
- Inspect the J 38826
and the appropriate pigtail adapter for damage. Replace as needed.
- Short the 2 SIR deployment harness (1) leads together using one banana
plug seated into the other.
- Connect the appropriate pigtail adapter (2) to the SIR deployment harness
(1).
- Extend the SIR deployment harness and adapter
to full length from the deployment fixture.
- 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. |
- Clear the area of people.
- Separate the 2 banana plugs on the SIR deployment harness.
- Place a 12 V minimum/2 A
minimum power source, such as the vehicle battery, near the shorted end of the SIR
deployment harness.
- Connect the SIR deployment harness wires to the power source. Inflator
module deployment will occur when contact is made.
- Disconnect the SIR deployment harness from the power source.
Caution: Refer to SIR Deployed Inflator Modules Are Hot Caution in the Preface section.
- Seat 1 banana plug into the other in order
to short the deployment harness leads.
- If the inflator module did not deploy, disconnect the adapter and discontinue
the procedure. Contact the Technical Assistance Group. Otherwise, proceed to the
following steps.
- Put on a pair of shop gloves.
- Disconnect the pigtail adapter from the inflator module as soon as possible.
- Dispose of the deployed inflator module through normal refuse channels.
- Wash hands with a mild soap.
Deployment Inside Vehicle (Vehicle Scrapping Procedure)
Caution: When deploying a SIR component for disposal, perform the deployment procedures
in the order listed. Failure to observe the procedures in the order listed may result
in personal injury.
Deploy the inflator modules inside of the vehicle when destroying the vehicle
or when salvaging the vehicle for parts. This includes but is not limited to the
following situations:
• | The vehicle has completed its useful life. |
• | Irreparable damage occurs to the vehicle in a non-deployment type accident. |
• | Irreparable damage occurs to the vehicle during a theft. |
• | The vehicle is being salvaged for parts to be used on a vehicle with
a different VIN as opposed to rebuilding as the same VIN. |
- Turn OFF the ignition.
- Remove the ignition key.
- Put on safety glasses.
- Remove all loose objects from the front seats.
- Disconnect the inflatable restraint steering wheel module coil connector.
- Cut the steering wheel module coil connector
out of the vehicle, leaving at least 16 cm (6 in) of wire at the connector.
- Strip 13 mm (0.5 in) of insulation from each of the connector
wire leads.
- Cut 2 4.6 M (15 ft) deployment
wires from a 0.8 mm (18 gage) or thicker multi-strand wire. These
wires will be used for the steering wheel module deployment harness.
- Strip 13 mm (0.5 in) of insulation from both ends of the
wires cut in the previous step.
- Twist together 1 end from each of the wires in order to short the wires.
Deployment wires shall remain shorted, and not connected to a power source until
you are ready to deploy the inflator module.
- Twist together 1 connector wire lead to
1 deployment wire.
- Inspect that the previous connection is secure.
- Bend flat the twisted connection.
- Secure and insulate the connection using electrical tape.
- Twist together, bend, and tape the remaining
connector wire lead to the remaining deployment wire.
- Connect the deployment harness to the steering
wheel module coil connector.
- Route the deployment harness out of the
driver side of the vehicle.
- Disconnect the inflatable restraint side
impact module - LF connector (4).
- Cut the side impact module - LF connector
out of the vehicle, leaving at least 16 cm (6 in) of wire at the connector.
- Strip 13 mm (0.5 in) of insulation from each of the connector
wire leads.
- Cut two 4.6 M (15 ft) deployment
wires from a 0.8 mm (18 gage) or thicker multi-strand wire. These
wires will be used for the side impact module - LF deployment harness.
- Strip 13 mm (0.5 in) of insulation from both ends of the
wires cut in the previous step.
- Twist together one end from each of the wires in order to short the wires.
Deployment wires shall remain shorted, and not connected to a power source until
you are ready to deploy the inflator module.
- Twist together 1 connector wire lead to
1 deployment wire.
- Inspect that the previous connection is secure.
- Bend flat the twisted connection.
- Secure and insulate the connection using electrical tape.
- Twist together, bend, and tape the remaining
connector wire lead to the remaining deployment wire.
- Connect the deployment harness to the side
impact module - LF connector (4).
- Route the deployment harness out of the
driver side of the vehicle.
- Disconnect the inflatable restraint I/P
module connector.
- Cut the I/P module connector out of the
vehicle, leaving at least 16 cm (6 in) of wire at the connector.
- Strip 13 mm (0.5 in) of insulation from each of the connector
wire leads.
- Cut two 4.6 M (15 ft) deployment
wires from a 0.8 mm (18 gage) or thicker multi-strand wire. These
wires will be used for the I/P module deployment harness.
- Strip 13 mm (0.5 in) of insulation from both ends of the
wires cut in the previous step.
- Twist together one end from each of the wires in order to short the wires.
Deployment wires shall remain shorted, and not connected to a power source until
you are ready to deploy the inflator module.
- Twist together 1 connector
wire lead to 1 deployment wire.
- Inspect that the previous connection is secure.
- Bend flat the twisted connection.
- Secure and insulate the connection using electrical tape.
- Twist together, bend, and tape the remaining
connector wire lead to the remaining deployment wire.
- Connect the deployment harness to the I/P
module connector.
- Route the deployment harness out of the
passenger side of the vehicle.
- Completely cover the windshield and the front door openings with a drop
cloth.
- Deploy each deployment loop one at a time.
- Stretch out all of the deployment harness wires on the left and right
side of the vehicle to their full length.
- Place a power source, 12 V minimum/2 A minimum (i.e., a
vehicle battery) near the shorted end of the harnesses.
- Separate one set of wires and touch the wire ends to the power source
in order to deploy the inflator modules.
- Disconnect the deployment harness from the power source and twist the
wire ends together.
- Continue the same process with the remaining deployment harnesses that
are available.
- Remove the drop cloth from the vehicle.
- Disconnect all harnesses from the vehicle.
- Discard the harnesses.
- Scrap the vehicle in the same manner as a non-SIR equipped vehicle.
- If one or more of the inflator modules did not deploy, perform the following
steps to remove the undeployed module(s) from the vehicle:
- Call the Technical Assistance Group for further assistance.