Caution: Refer to SIR Seatbelt Pretensioner Handling Caution in the Preface section.
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 seat belt pretensioner.
Do not dispose of a live and undeployed seat belt pretensioner through normal
disposal channels until the seat belt pretensioner has been deployed. The
following information covers the proper procedures for disposing of a live and
undeployed seat belt pretensioner. Do not deploy the seat belt pretensioner in
the following situations:
• | After replacement of a seat belt pretensioner under warranty. The seat
belt pretensioner may need to be returned undeployed to the manufacturer. |
• | If the vehicle is the subject of a Product Liability report, GM1241,
related to the SIR system or the seat belt system. If the vehicle is subject
to the Product Liability report, do not alter the SIR or seat belt system in
any manner. |
• | If the vehicle is involved in a campaign affecting the seat belt pretensioners.
Follow the instructions in the Campaign Service Bulletin for proper SIR handling
procedures. |
Deployment Procedures
The seat belt pretensioner 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 for Seat Belt Pretensioners
Deploy the seat belt pretensioners 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, it is determined that the seat belt pretensioner
is malfunctioning. |
• | The seat belt pretensioner pigtail, if equipped, is damaged. |
• | The seat belt pretensioner connector is damaged. |
• | The seat belt pretensioner connector terminals are damaged. |
Deployment and disposal of a malfunctioning seat belt pretensioner 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 inflatable restraint seat belt pretensioner as
normal shop waste. Undeployed seat belt pretensioners 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
seat belt pretensioner. Failure to observe the following disposal methods may be
a violation of federal, state, or local laws.
Tools Required
• | An appropriate pigtail adaptor |
- Turn
OFF the ignition.
- Remove the ignition key.
- Put on safety glasses.
- Remove the seat belt pretensioner from the vehicle. Refer to
Seat Belt Buckle Pretensioner Replacement - Left Side
or
Seat Belt Buckle Pretensioner Replacement - Right Side
.
- When carrying a seat belt pretensioner to the deployment area, keep
the open end of the seat belt pretensioner pointed away from the body.
- Clear a space on the ground about 1.85 m
(6 ft) in diameter for deployment of the seat belt pretensioner. 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
SIR Deployment Fixture in the center of the cleared area.
- Fill the fixture plastic reservoir with water or sand.
- Mount the seat belt pretensioner (1) in
the SIR deployment fixture (3) with the open end facing up using the following
mounting method.
• | Adjust and secure the J 39401-B
arms (4) to the deployment fixture (3). |
• | To mount, use the proper size bolt (2) and nut (5) with
washers in order to secure the seat belt pretensioner (1) to the deployment
fixture brackets (4). |
• | Securely tighten all fasteners prior to deployment. |
- Inspect the J 38826
SIR Deployment Harness and the appropriate pigtail adapter for
damage. Replace as needed.
- Short the two 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 seat belt pretensioner connector
(1) to the adapter (2) on the deployment harness (3).
- Clear the area of people.
Important: When deploying a seat belt pretensioner, the rapid expansion of gas is very
loud. Notify the people in the immediate area that a seat belt pretensioner
will be deployed.
- Separate the two banana plugs on the SIR deployment harness.
- Place a 12 V minimum/2 A
minimum power source, such as a vehicle battery, near the shorted end of the harness.
- Connect the SIR deployment harness wires to the power source. Seat belt
pretensioner deployment will occur when contact is made.
- Disconnect the SIR deployment harness from the power source after the
seat belt pretensioner deploys.
- Seat one banana plug into the other in
order to short the deployment harness leads.
- If the seat pretensioner 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 seat belt pretensioner as soon
as possible.
- Dispose of the deployed seat belt pretensioner through normal refuse
channels.
- Wash hands with a mild soap.
Deployment Inside Vehicle - Vehicle Scrapping Procedure
Deploy the seat belt pretensioners 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 seat belt pretensioner - LF connector. Refer to
Seat Belt Buckle Pretensioner Replacement - Left Side
.
- Cut the seat belt pretensioner 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 two 6.1 m (20 ft) deployment
wires from a 0.8 mm (18 gage) or thicker multi-strand wire.
These wires will be used for the seat belt pretensioner - 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 seat belt pretensioner.
- Twist together one connector wire lead
to one deployment wire.
- Inspect that the previous connections 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
seat belt pretensioner - LF connector (3).
- Route the deployment harness out of the
driver side of the vehicle.
- Disconnect the seat belt pretensioner
- RF connector. Refer to
Seat Belt Buckle Pretensioner Replacement - Right Side
.
- Cut the seat belt pretensioner 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 6.1 m (20 ft) deployment
wires from a 0.8 mm (18 gage) or thicker multi-strand wire.
These wires will be used for the seat belt pretensioner - RF 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. The deployment wires are to remain shorted, and not connected to a power
source until you are ready to deploy the seat belt pretensioner.
- Twist together one connector wire lead
to one 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
seat belt pretensioner - RF connector (3).
- Route the deployment harness out of the
passenger's 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, such as
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 seat belt pretensioners.
- 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 seat belt pretensioners did not deploy, perform
the following steps to remove the undeployed seat belt pretensioner from
the vehicle:
- Call the Technical Assistance Group for further assistance.