AIR BAG SYSTEM 10B-53
REPAIRS AND INSPECTIONS REQUIRED AFTER AN ACCIDENT
ACCIDENT WITH DEPLOYMENT/ACTIVA-
TION - COMPONENT REPLACEMENT
The following components must be replaced.
Driver and passenger air bag (inflator) modules
Driver and passenger seat belt pretensioners
SDM
–Replace with new one as an assembly.
ACCIDENT WITH OR WITHOUT DEPLOY-
MENT/ACTIVATION - COMPONENT INSPEC-
TIONS
Certain air bag system components must be inspected after any
crash, whether the air bag system activated or not.
Those components are :
Steering column (1) and shaft joints
–Check for length, damage and bend according to “CHECK-
ING STEERING COLUMN FOR ACCIDENT DAMAGE” in
SECTION 3C.
If any faulty condition is found in above checks, replace faulty
part.
Steering column bracket (2) and capsules (3)
–Check for damage and bent.
If any faulty condition is found in above checks, replace faulty
part. CAUTION:
All air bag system components, including the electrical harness (component mounting points),
must be inspected after an accident. If any components are damaged or bent, they must be
replaced even if air bag system activation did not occur.
Never use air bag system parts from another vehicle.
Do not attempt to service the parts below. Service of these parts is by replacement only.
–Driver/Passenger air bag (inflator) module, Driver/Passenger seat belt pretensioner
–SDM
–Contact coil and combination switch assembly
–Air bag wire harness
Proper operation of the air bag system requires that any repairs to the vehicle structure return it to
its original production configuration.
CAUTION:
After detecting one time of such collision as to meet deployment conditions, the SDM must not be
used. Refer to “AIR BAG DIAGNOSTIC SYSTEM CHECK” when checking the SDM.
10B-54 AIR BAG SYSTEM
Steering wheel and driver air bag (inflator) module
–Check for damage or air bag (inflator) module fitness.
–Check trim cover (pad surface) for cracks.
–Check wire harness and connector for damage or tight-
ness.
If any faulty condition is found in above checks, replace faulty
part.
Contact coil and combination switch assembly
–Check wire harness and connectors for damage or tight-
ness.
–Check contact coil case for damage.
If any faulty condition is found in above checks, replace.
SDM and SDM plate
–Check for external damage such as deformation, scratch,
crack, peeled paint, etc.
–Check that SDM cannot be installed properly due to a
cause in itself. (There is a gap between SDM and SDM
plate, or it cannot be fixed securely.)
–Check that connector or lead wire of SDM has a scorching,
melting or damage.
–Check SDM connector and terminals for tightness.
–Check SDM sets a diagnostic trouble code (Refer to “DTC
CHECK”.) and the diagnostic table leads to a malfunction-
ing SDM.
If any faulty condition is found in above checks, replace.
Instrument panel member and reinforcement
–Check for any distortion, bending, cracking or other dam-
age.
If any faulty condition is found in above checks, replace.
Passenger air bag (inflator) module
–Check for dents, cracks, damage or fitness.
–Check trim cover for cracks or deformities.
–Check harness and connector for damage or tightness.
If any faulty condition is found in above checks, replace.
10B-56 AIR BAG SYSTEM
SDM
REMOVAL
1) Disconnect negative cable at battery.
2) Disable air bag system. Refer to “DISABLING AIR BAG
SYSTEM” of “SERVICE PRECAUTIONS”.
3) Remove center console boxes (1) by removing screws and
clips.
4) Disconnect SDM connector (2) from SDM (3).
5) Remove SDM (3) (with SDM plate (5)) as an assembly from
vehicle. WARNING:
During service procedures, be very careful when han-
dling a Sensing and Diagnostic Module (SDM).
Be sure to read “SERVICE PRECAUTIONS” before start-
ing to work and observe every precaution during work.
Neglecting them may result in personal injury or inactiva-
tion of the air bag system when necessary.
CAUTION:
Do not separate SDM (3) and SDM plate (5).
3
5
2 FORWARD
10B-58 AIR BAG SYSTEM
PASSENGER AIR BAG (INFLATOR) MODULE (IF EQUIPPED)
REMOVAL
1) Disconnect negative cable at battery.
2) Open glove box (1), then while pressing glove box stopper,
pull out glove box (1) from instrument panel (4) and then
remove glove box clip (2) and glove box (1) from instrument
panel (4).
3) Disable air bag system. Refer to “DISABLING AIR BAG
SYSTEM”.
4) Remove passenger air bag (inflator) module (3) attaching
bolts (5) and passenger air bag (inflator) module (3) from
vehicle.
INSPECTION
Check air bag (inflator) module appearance visually for following
symptoms and if any one of them is applicable, replace with a
new one.
Air bag has deployed.
There is a crack in trim cover (pad surface).
Wire harness or connector is damaged.
Air bag (inflator) module is damaged or a strong impact was
applied to it. WARNING:
Never attempt to disassemble or repair the passenger air bag (inflator) module. If any abnormality is
found, be sure to replace it with new one as an assembly.
Be sure to read “SERVICE PRECAUTIONS” before starting to work and observe every precaution
during work. Neglecting them may result in personal injury or undeployment of the air bag when
necessary.
1 24
Push
Pull Push
3
4
5
WARNING:
Never measure resistance of passenger air bag (inflator)
module or disassemble it. Otherwise personal injury may
result.
CAUTION:
If air bag (Inflator) module was dropped from a height or
90 cm (3 ft) or more, it should be replaced.
10B-60 AIR BAG SYSTEM
AIR BAG (INFLATOR) MODULE AND SEAT BELT PRETENSIONER
DISPOSAL
Do not dispose of the live (undeployed) air bag (inflator) modules and seat belt pretensioners.
The method employed depends upon the final disposition of the particular vehicle, as noted in “DEPLOYMENT/
ACTIVATION OUTSIDE VEHICLE” and “DEPLOYMENT/ACTIVATION INSIDE VEHICLE”.
Deployment/Activation Outside Vehicle :
Follow this procedure when disposing of the air bag (inflator) module(s) and seat belt pretensioner(s) only (i.e.,
the vehicle itself will be used again).
Deployment/Activation Inside Vehicle :
Follow this procedure when scrapping the entire vehicle including the air bag (inflator) modules and seat belt
pretensioners.WARNING:
Failure to follow proper air bag (inflator) module and seat belt pretensioner disposal procedures can
result in air bag deployment and pretensioner activation which may cause personal injury.
Undeployed air bag (inflator) module/inactivated seat belt pretensioner must not be disposed of
through normal refuse channels.
The undeployed air bag (inflator) module and inactivated seat belt pretensioner contain substances
that can cause severe illness or personal injury if the sealed container is damaged during disposal.
WARNING:
Following precautions must be observed for this work. Failure to observe any of them may result in
personal injury.
The procedure should be followed strictly as described here.
Be sure to read “SERVICE PRECAUTIONS” beforehand.
To avoid an accidental deployment, this work should be performed by no more than one person.
Since the smoke is produced when air bag is deployed and pretensioner is activated, select a well-
ventilated area.
The air bag (inflator) module and seat belt pretensioner will immediately deploy/activate when a
power source is connected to it. Wear safety glasses throughout this entire deployment/activation
and disposal procedure.
Wear suitable ear protection when deploying air bag/activating pretensioner. Also, advise those
who are in the area close to deployment/activation site to wear suitable ear protection.
Do not deploy/activate two or more air bag system components (air bag (inflator) modules and seat
belt pretensioners) at the same time.
Never connect deployment harness to any power source before connecting deployment harness to
the air bag (inflator) module and seat belt pretensioner. Deployment harness shall remain shorted
and not be connected to a power source until the air bag is to be deployed and the pretensioner is
to be activated.
AIR BAG SYSTEM 10B-61
DEPLOYMENT/ACTIVATION OUTSIDE VEHI-
CLE
Use this procedure when the vehicle itself is used again (only the
air bag (inflator) module(s) and seat belt pretensioner(s) are dis-
posed).
1) Turn ignition switch to “LOCK”, position remove key and put
on safety glasses.
2) Check that there is no open, short or damage in special tool
(deployment harness). If any faulty is found, do not use it
and be sure to use new deployment harness.
Special tool
(A) : 09932-75030
3) Short (1) the two deployment harness leads together by fully
seating one banana plug into the other.
4) Remove air bag (inflator) module(s) and seat belt preten-
sioner(s) from vehicle, referring to SECTION 3C, 10B and
10. WARNING:
Deployment harness shall remain shorted and not be
connected to a power source until the air bag is to be
deployed and seat belt pretensioner is to be activated.
WARNING:
Always carry live air bag (inflator) module with trim
cover away from you.
When storing a live air bag (inflator) module or when
leaving a live air bag (inflator) module unattended on a
bench or other surface, always face the bag and trim
cover up and away from the surface. As the live pas-
senger air bag (inflator) module must be placed with its
bag (trim cover) facing up, place it on the workbench
with a slit (1) or use the workbench vise (2) to hold it
securely at its lower mounting bracket (3).
This is necessary so that a free space is provided to
allow the air bag to expand in the unlikely event of
accidental deployment.
Failure to follow procedures may result in personal
injury.
1
3
32
AIR BAG SYSTEM 10B-63
c) Fill plastic reservoir in fixture (special tool) with water or
sand. This is necessary to provide sufficient stabilization of
the fixture during deployment.
d) Attach the passenger air bag (inflator) module in the fixture
(special tool) using mounting attachment, hold-down bolts
and nuts and M8 bolts and nuts (3).
Securely hand-tighten all fastener prior to deployment.
[In case of seat belt pretensioner]
a) Pull out the webbing (2) fully as shown in the figure and cut
it at the root of the pretensioner (retractor assembly) (1) as
shown in the figure.
b) Clear a space on the ground about 185 cm (6 ft) (4) in
diameter where the seat belt pretensioner (retractor assem-
bly) (1) is to be activated. A paved, outdoor location where
there is no activity is preferred. If an outdoor location is not
available, a space on the shop floor where there is no activ-
ity and sufficient ventilation is recommended.
Ensure no loose or flammable objects are within the activa-
tion area.
c) Place the seat belt pretensioner (retractor assembly) (1) as
shown in the figure on the ground in the space just cleared. CAUTION:
Be sure to use the following bolt and nut for fixing
passenger air bag (inflator) module to mounting
attachment.
Size : M8, Strength : 7T
WARNING:
As the drum (3) of the retractor assembly (1) turns very
quickly as soon as the webbing (2) is cut, fix the retractor
assembly (1) with a vise on the workbench and keep your
hands and fingers away from it when cutting the webbing
(2).
AIR BAG SYSTEM 10B-67
DEPLOYMENT/ACTIVATION INSIDE VEHICLE
Use this procedure when scrapping the entire vehicle including
the air bag (inflator) modules and seat belt pretensioners.
1) Turn ignition switch to “LOCK” position, remove key and put
on safety glasses.
2) Remove all loose objects from front seats and instrument
panel.
3) [For driver air bag (inflator) module]
Disconnect contact coil connector (1) located near the base
of the steering column.
[For passenger air bag (inflator) module]
Remove glove box from instrument panel and disconnect
passenger air bag (inflator) module connector (2).
[For seat belt pretensioner]
Remove both side (driver and passenger side) center pillar
lower trim and disconnect seat belt pretensioner connectors
(3).
4) Confirm that each air bag (inflator) module is securely
mounted.
5) Check that there is no open, short or damage in special tool
(deployment harness). If any faulty condition is found, do not
use it and be sure to use new deployment harness.
Special tool
(A) : 09932-75030
6) Short (1) the two deployment harness leads together by fully
seating one banana plug into the other.
7) Connect deployment harness connector to air bag (inflator)
module (driver or passenger) or seat belt pretensioner
(driver or passenger) and lock connector with lock lever.
a) Connect connector.
b) Lock connector with lock lever.CAUTION:
When vehicle itself will be used again, deploy/activate
the air bag and pretensioner outside vehicle according to
“DEPLOYMENT/ACTIVATION OUTSIDE VEHICLE”, for
deploying/activating it inside will cause the instrument
panel, glove box and their vicinity to be deformed.
Failure to observe this CAUTION may require unneeded
vehicle inspection and repair.
1
2
For Driver Air Bag (Inflator) Module
For Passenger Air Bag (Inflator) Module
For Seat Belt Pretensioner
WARNING:
Deployment harness shall remain shorted and not be
connected to a power source until the air bag is to be
deployed and seat belt pretensioner is to be activated.
(A)
1
For Driver Air Bag (inflator) Module