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 air bag deployment produces rapid gas generation. This may cause the inflator module,
or an object in front of the inflator module, to jettison 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 necessitate the disposal of a live (undeployed) inflator module. The following
information covers the proper procedures for the disposing of a live inflator module.
Deploy the inflator module before disposal. Do not dispose of the module through normal
disposal channels.
Caution: Refer to SIR Inflator Module Disposal Caution in the Preface section.
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 - Inflatable Restraint Steering Wheel Module
Tools Required
• | EL-46850 SIR Deployment
Harness Adapter |
Caution: Refer to SIR Inflator Module Disposal Caution in the Preface section.
Caution: Refer to SIR Inflatable Module Deployment Outside Vehicle Caution in the Preface section.
Deploy the inflatable restraint steering wheel 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 does
not function properly. |
• | The inflator module is scratched or ripped on the cover. |
• | The inflator module pigtail harness is damaged. |
• | The inflator module connector is damaged. |
• | An inflator module connector terminal is damaged. |
Deployment and disposal of a malfunctioning inflator module is subject to any
required retention period.
- Turn
the ignition switch to the LOCK position.
- Remove the ignition key.
- Put on safety glasses.
- Inspect the J 38826
and
the EL-46850
for damage. Replace
as needed.
- Short the 2 SIR deployment harness (1) leads together using one banana
plug seated into the other.
- Connect the SIR deployment harness adapter (2) to the SIR deployment harness
(1).
- Remove the inflator module from the vehicle.
Caution: Refer to SIR Inflator Module Handling and Storage Caution in the Preface section.
- Place the module with the vinyl trim cover facing up and away from the surface
on a work bench.
- Clear
a space on the ground about 1.85 m (6 ft) in diameter for deployment
of the 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.
- Place the module in the space with the vinyl trim cover facing up.
- Extend
the SIR deployment harness and adapter to full length from the module.
- Place a 12 volt minimum/2 amp minimum power source, i.e.,
vehicle battery, near the shorted end of the harness.
- Connect the module (1) to the adapter (2) on the SIR deployment harness (3).
- Firmly seat the adapter into the module connector.
- Clear the area of people.
Caution: Refer to SIR Inflatable Module Deployment Outside Vehicle Caution in the Preface section.
- Separate the 2 banana plugs on the SIR deployment harness.
Important:
• | The rapid gas expansion involved with deploying an air bag is very loud.
Notify all people in the immediate area that you intend to deploy the inflator module. |
• | When the air bag deploys, the inflator module may jump about 30 cm
(1 ft) vertically. This is a normal reaction of the inflator module to the
force of the rapid gas expansion inside the air bag. |
- Connect the SIR deployment harness wires to the power source.
- Disconnect
the SIR deployment harness from the power source after the air bag deploys.
- Seat one banana plug into the other in order to short the deployment harness
leads.
- If the air bag did not deploy, disconnect the adapter and discontinue
the procedure. Contact the Technical Assistance Group. Otherwise, proceed to the following
steps.
Caution: Refer to SIR Deployed Inflator Modules Are Hot Caution in the Preface section.
- Put
on a pair of shop gloves.
- Disconnect the pigtail adapter from the inflator module as soon as possible.
- Inspect the pigtail adapter and the SIR deployment harness. Replace as
needed.
- Dispose of the deployed module through normal refuse channels.
- Wash hands with a mild soap.
Deployment Outside Vehicle - Inflatable Restraint I/P Module
Tools Required
• | EL-46850 SIR Deployment
Harness Adapter |
Caution: Refer to SIR Inflator Module Disposal Caution in the Preface section.
Caution: Refer to SIR Inflatable Module Deployment Outside Vehicle Caution in the Preface section.
Deploy the inflatable restraint I/P 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 does
not function properly. |
• | The inflator module is scratched or ripped on the cover. |
• | The inflator module pigtail, if equipped, is damaged. |
• | The inflator module connector is damaged. |
• | An inflator module connector terminal is damaged. |
Deployment and disposal of a malfunctioning inflator module is subject to any
required retention period.
- Turn
OFF the ignition.
- Remove the ignition key.
- Put on safety glasses.
- Inspect the J 38826
and
the EL-46850
for damage. Replace
as needed.
- Short the 2 SIR deployment harness (1) leads together using one banana
plug seated into the other.
- Connect the SIR deployment harness adapter (2) to the SIR deployment harness
(1).
- Remove the inflatable restraint I/P module. Refer to
Inflatable Restraint Instrument Panel Module Replacement
.
Caution: Refer to SIR Inflator Module Handling and Storage Caution in the Preface section.
- Place
the module with the vinyl trim cover facing up and away from the surface on a work
bench.
- Clear a space on the ground about 1.85 m
(6 ft) in diameter for deployment of the 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.
- Place the J 39401-B
in
the center of the cleared area.
- Fill the fixture plastic reservoir with water or sand.
Important: Securely hand tighten all fasteners prior
to deployment.
- Mount the module in the SIR deployment fixture with the vinyl trim cover facing
up using one of the following mounting methods.
- To use the stud mount method, remove the
original mounting nuts.
- Use the J 39401-1 mounting nuts (3) in order to secure the module
(1) to the fixture (2).
- To use the flange mount method, use 4 of
the J 39401-13 hold-down nuts whenever possible in order to secure the module
to the fixture.
- If clearance restrictions do not allow the use of the J 39401-13
hold-down nuts, use four M 6 bolts (6), nuts (8), and washers (7) in order
to properly secure the I/P module (1) to the deployment fixture.
- Securely tighten all fasteners prior to deployment.
- Extend the SIR deployment harness and adapter
to full length from the module.
- Place a 12 volt minimum/2 amp minimum power source, i.e.,
vehicle battery, near the shorted end of the harness.
- Connect the module (1) to the adapter (2)
on the SIR deployment harness (3).
- Firmly seat the adapter into the module connector.
- Clear the area of people.
Caution: Refer to SIR Inflatable Module Deployment Outside Vehicle Caution in the Preface section.
- Separate the 2 banana plugs on the SIR deployment harness.
Important:
• | The rapid gas expansion involved with deploying an air bag is very loud.
Notify all the people in the immediate area that you intend to deploy the inflator
module. |
• | When the air bag deploys, the SIR deployment fixture may jump vertically.
This is a normal reaction of the inflator module to the force of the rapid gas expansion
inside the air bag. |
- Connect the SIR deployment harness wires to the power source.
- Disconnect
the SIR deployment harness from the power source after the air bag deploys.
- Seat one banana plug into the other in order to short the deployment harness
leads.
- If the air bag did not deploy, disconnect the adapter and discontinue
the procedure. Contact the Technical Assistance Group. Otherwise, proceed to the following
steps.
Caution: Refer to SIR Deployed Inflator Modules Are Hot Caution in the Preface section.
- Put
on a pair of shop gloves.
- Disconnect the pigtail adapter from the inflator module as soon as possible.
- Inspect the pigtail adapter and the SIR deployment harness. Replace as
needed.
- Dispose of the deployed module through normal refuse channels.
- Wash hands with a mild soap.
Deployment Inside Vehicle - Frontal Air Bags - Vehicle Scrapping
Procedure
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. |
Caution: Refer to SIR Inflatable Module Deployment Outside Vehicle Caution in the Preface section.
- Turn the ignition switch to the LOCK position.
- Remove the ignition key.
- Put on safety glasses.
- Remove all loose objects from the front seats.
- Disconnect the inflatable restraint steering wheel module connector.
- Cut the harness 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 mm² (18 gage)
or thicker multi-strand wire. Use these wires to fabricate the driver frontal air
bag 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 air bag.
- Twist together 1 connector wire lead to
1 deployment wire (1). Secure the connection mechanically.
- Bend the twisted connection (2) flat. Wrap the connection tightly and
securely with electrical tape. The tape will also insulate the connection.
- Secure the remaining connector wire lead (3) to the remaining deployment
wire.
- Connect the deployment harness to the steering wheel module connector.
- Route the deployment harness out of the
vehicle's driver side.
- Disconnect the inflatable restraint instrument
panel (I/P) module harness connector.
- Cut the harness 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 6.1 m (20 ft) deployment wires from a 0.8 mm²
(18 gage) or thicker multi-strand wire. These wires will be used to fabricate
the passenger 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.
- Twist together a connector wire lead to
one deployment wire (1). Secure the connection mechanically.
- Bend the twisted connection (2) flat. Wrap the connection tightly
and securely with electrical tape. The tape will also insulate the connection.
- Secure the remaining connector wire lead (3) 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.
- Clear the inside and outside of the vehicle of any people or loose and
flammable objects.
- Stretch the driver harness to full length.
- Stretch the passenger harness to full length.
- Completely cover the windshield and front door window openings with a
drop cloth.
- Place a power source, 12 volt minimum/2 amp
minimum, i.e., a vehicle battery, near the shorted end of the harness.
- Separate the 2 ends of the driver frontal air bag deployment harness
wires.
Notice: The rapid gas expansion involved with deploying an air
bag is very loud. Notify all people in the immediate area that you intend
to deploy the inflator module.
- Connect the driver frontal air bag deployment harness wires to the power
source in order to deploy the inflatable restraint steering wheel module.
- Disconnect the driver frontal air bag deployment harness wires from the
power source.
- Separate the 2 ends of the passenger frontal
air bag deployment harness wires.
- Connect the passenger frontal air bag deployment harness wires to the
power source in order to deploy the I/P module.
- Disconnect the passenger frontal air bag deployment harness wires from
the power source.
- Twist together 1 end of each wire on the
driver frontal air bag deployment harness in order to short the wires.
- Twist together 1 end of each wire on the
passenger frontal air bag deployment harness in order to short the wires.
- Remove the drop cloth from the vehicle.
- Disconnect both harnesses from the vehicle.
- Discard the harnesses.
- Scrap the vehicle in the same manner as a non-SIR equipped vehicle.
- If 1 or both of the modules did not deploy, perform the following steps:
44.2. | Temporarily store the module(s). |
44.3. | Call the Technical Assistance Group for further assistance. |
Handling a Deployed Inflator Module
After the inflator module has deployed, the surface of the air bag may contain
a powdery residue. This powder consists primarily of cornstarch, used to lubricate
the bag as it inflates, and by-products of the chemical reaction. The deployment reaction
produces sodium hydroxide dust, similar to lye soap. The sodium hydroxide quickly
reacts with the atmospheric moisture. This atmospheric moisture converts the sodium
hydroxide into sodium carbonate and sodium bicarbonate, baking soda. Therefore, you
will probably find no sodium hydroxide present after the deployment. Gloves and safety
glasses are recommended, however, as a precaution. Gloves and safety glasses help
to prevent possible irritation of the skin or eyes.