2004 DAEWOO NUBIRA section 9G

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 91
DAEWOO V–121 BL4
Important : If the vehicle interior has been exposed to ex-
tensive water intrusion such as water leaks, driving
through high water, flooding or other causes, then the
SDM and SDM connector may need to be replaced. With
the ignition OFF, inspect the area of SDM, including the
carpet. If any significant soaking or evidence of previous
soaking is detected, the water must be removed, the water
damage repaired and the SDM and SDM connector must
be replaced. Before attempting any of these repairs, the
SRS must be disabled. Refer to ”Disabling the SIR” in this
section.
Removal and Installation Procedure
1. Disable the supplemental inflatable restraints(SIR).
Refer to ”Disabling the SIR” in this section.
2. Remove the floor console. Refer to section 9G, In-
terior Trim.
3. Remove the connector position assurance lock,
which is tethered to SDM connector.
4. Disconnect the SDM electrical connector.
5. Remove the SDM mounting bolts.
6. Remove the SDM.
7. Install the removed parts in the reverse order.
Installation Notice
Tightening torque of SDM mounting bolts is 10 NSm
(89 lb–in).
Enable the SIR. Refer to”Enabling the SIR”
in this section.
CAUTION : All SDM mounting bolts must be care-
fully tightened and the arrow on the SDM must be
pointing toward the front of the vehicle to ensure
proper operation of the SIR. The SDM could be
activated if it is powered while not rigidly at-
tached to the vehicle, resulting in unexpected de-
ployment and possible injury.
0
DRIVER AIRBAG MODULE
Removal and Installation Procedure
1. Disconnect the negative battery cable.
CAUTION : The sensing and diagnostic mod-
ule(SDM) can maintain sufficient voltage to
deploy the airbags and pretensioners for 1 min-
ute after the ignition is OFF and the fuse has been
removed. If the airbags and pretensioners are not
disconnected, do not begin service until one
minute has passed after disconnecting power to
SDM. If the airbags are disconnected, service can
be excuted immediately without waiting for one–
minute time period to expire. Failure to tempo-
rarily disable the SIR during service can result in
unexpected deployment, personal injury and un-
necessary SIR repairs.
2. Remove two driver airbag module mounting bolts
and discard them.

8B – 92ISUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO V–121 BL4
3. Remove the connector from the driver airbag mod-
ule.
4. Remove the driver airbag module.
CAUTION : When handling an airbag module, al-
ways keep the top the unit facing upward. This
leaves room for the airbag to expand if the mod-
ule unexpectedly deploys. Without room for ex-
pansion, a module suddenly propelled toward a
person or object can cause injury or vehicle dam-
age.
5. Installation should follow the removal procedure in
the reverse order.
Installation Notice
Tightening torque of the driver airbag module mount-
ing bolt is 8 NSm (71 lb–in).
CLOCK SPRING
Removal and Installation Procedure
CAUTION : The sensing and diagnostic mod-
ule(SDM) can maintain sufficient voltage to
deploy the airbags and pretensioners for 1 min-
ute after the ignition is OFF and the fuse has been
removed. If the airbags and pretensioners are not
disconnected, do not begin service until one
minute has passed after disconnecting power to
SDM. If the airbags are disconnected, service can
be excuted immediately without waiting for one–
minute time period to expire. Failure to tempo-
rarily disable the SIR during service can result in
unexpected deployment, personal injury and un-
necessary SIR repairs.
1. Disconnect the negative battery cable.
2. Remove the driver airbag module. Refer to ”Driver
airbag module” in this section.
3. Remove the steering wheel. Refer to Section 6E,
Steering Wheel and Column.
4. Remove the screws from the upper and lower
steering column covers. And remove the covers.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 93
DAEWOO V–121 BL4
5. Remove the driver side knee bolster or instrument
panel lower cover.
6. Disconnect the driver airbag, horn and connectors
from the lower steering column.
7. Remove the screws and discard them.
8. Remove the clock spring from the steering shaft.
9. Installation should follow the removal procedure in
the reverse order. Refer to ”Clock Spring Align-
ment” in this section for alignment.
Tightening torque of the clock spring screw is 3 NSm
(27 lb–in).
CAUTION : If the clock spring is not properly
aligned, the steering wheel may not be able to ro-
tate completely during a turn. Restricted turning
ability can cause the vehicle to crash. Improper
alignment of the clock spring also may make the
SIR inoperative, preventing the airbag from de-
ploying during crash. Both of the out comes can
result in injury.
CLOCK SPRING ALIGNMENT
Notice : Turning the clock spring more than three turns
clockwise or counterclockwise can damage the spring.
1. Turn the front wheels straight ahead.
2. Turn the lobe of clock spring clockwise to lock (Do
not force).
3. Then turn the lobe of clock spring counterclockwise
approximately three turns to the neutral position,
with the front of the wheels straight ahead.
4. Properly align the pointed marks on the compo-
nents of the clock spring.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 95
DAEWOO V–121 BL4
SIDE AIRBAG SENSOR
Removal and Installation Procedure
CAUTION : The sensing and diagnostic mod-
ule(SDM) can maintain sufficient voltage to
deploy the airbags and pretensioners for 1minute
after the ignition is OFF and the fuse has been re-
moved. If the airbags and pretensioners are not
disconnected, do not begin service until one
minute has passed after disconnecting power to
SDM. If the airbags are disconnected, service can
be executed immediately without waiting for
one–minute time period to expire. Failure to tem-
porarily disable the SIR during service can result
in unexpected deployment, personal injury and
unnecessary SIR repairs.
1. Disconnect the negative battery cable.
2. Remove the trim from B pillar.
3. Remove the side airbag sensor mounting bolts.
4. Remove the side airbag sensor.
5. Installation should follow the removal procedure in
the reverse order.
Tightening torque of the side airbag sensor mounting
bolts is 8 NSm (71 lb–in).
FRONT SEAT BELT PRETENSIONER
For removal and installation, refer to Section 8A, Seat
Belts.
AIRBAG MODULE DEPLOYMENT
(INSIDE OF VEHICLE)
Deploy the airbags before disposing them. If a vehicle
to be scrapped, the airbag may be deployed inside the
vehicle.
CAUTION : To avoid injury while deploying an air-
bag or a pretensioner in the vehicle, observe the
following precaution :
S Before deploying the airbags, remove all loose ob-
jects from the airbag’s expansion area.
S Deploy the airbags with the vehicle doors closed
and the side windows open.
S Deploy the airbags only in an evacuated area. Ser-
vice personnel who must be present during the de-
ployment should be at least 10 meters(33 feet) in
front of the vehicle.
S Do not connect the voltage source until after having
completed all other preparations for the deployment
of airbags.
S Allow a deployed airbag module or pretensioner
cool for 30 minutes before handling.
S Wear gloves and eye protection during the disposal
procedure.
S If the deployment fails, disconnect the voltage
source and wait 5 minutes before approaching the
vehicle.

8B – 96ISUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO V–121 BL4
Deployment Procedure
CAUTION : The sensing and diagnostic mod-
ule(SDM) can maintain sufficient voltage to
deploy the airbags and pretensioners for 1 min-
ute after the ignition is OFF and the fuse has been
removed. If the airbags and pretensioners are not
disconnected, do not begin service until one
minute has passed after disconnecting power to
SDM. If the airbags are disconnected, service can
be executed immediately without waiting for
one–minute time period to expire. Failure to tem-
porarily disable the SIR during service can result
in unexpected deployment, personal injury and
unnecessary SIR repairs.
1. Disconnect both battery cables and place the bat-
tery at least 10 meters (33 feet) from the vehicle.
2. Remove the driver side knee bolster or instrument
panel lower cover from the steering column. Refer
to Section 9G, Interior Trim.
3. At the lower steering column, cut the two wires
leading from the supplemental inflatable re-
straints(SIR) harness to the clock spring.
4. Strip 13mm(0.5 inch) of the insulation from the end
of the wires leading to the clock spring.
5. Use two additional wires, each at least 10 me-
ters(33 feet) long, to reach from the deployment
battery to the inflator module.
6. Strip 13mm(0.5 inch) of the insulation from the end
of these two additional wires.
7. Twist the two wires together at one end.
8. Place the twisted ends of the two wires near the
deployment battery. Do not connect the wires to the
battery at this time.
9. Using the free ends of the 10 meters(33 feet) wires
leading to the clock spring, make two splices, one
at each wires from the airbag modules.
10. Wrap the wires with insulation tape.
11. Now that the free ends of the 10 meters(33 feet)
wires are spliced to the airbag module wires, and
the ends that are twisted together are near the de-
ployment battery. Clear the area.
12. Untwist the wires that near the deployment battery.
13. Touch one wire to the positive battery terminal and
touch the other wire to the negative battery termi-
nal. The airbag will deploy.
14. Repeat this procedure for the passenger airbag,
side airbags and pretensioners.
15. Using proper precautions, dispose of the deployed
airbags/pretensioners. Refer to ”Deployed Airbag
Module Disposal Procedure” in this section.

8B – 98ISUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO V–121 BL4
11. Using the free ends of the 10 meters(33 feet) wires
leading to the airbag module/pretensioner, make
two splices, one at each wires from the airbag mod-
ule/pretensioner.
12. Wrap the splices with insulating tape.
13. Now that the free ends of the 10 meters(33 feet)
wires are spliced to the airbag module/pretensioner
wires, and the ends that are twisted together are
near the deployment battery, clear the area.
14. Untwist the wires that near the deployment battery.
15. Touch one wire to the positive battery terminal and
touch the other wire to the negative battery termi-
nal. The airbag will deploy.
16. Using proper precautions, dispose of the deployed
airbags/pretensioners. Refer to ”Deployed Airbag
Module Disposal Procedure” in this section.
DEPLOYED AIRBAG MODULE
DISPOSAL PROCEDURE
CAUTION : After deployment, a powdery residue
may be on the surface of the airbag. The powder
primarily consists of cornstarch(used to lubri-
cate the bag as it inflates) and by–products of the
chemical reaction. The sodium hydroxide then
quickly reacts with atmospheric moisture and is
converted to sodium carbonate and sodium bi-
carbonate(also known as baking soda). There-
fore, it is unlikely that sodium hydroxide will be
presents after deployment.
CAUTION : Be sure to wear gloves and eye
protection during the disposal procedure.
CAUTION : After deployment, the metal surfaces
of the airbag module will be hot. In order to avoid
the risk of an injury or a fire do not place the
deployed airbag module near any flammable ob-
jects, and allow the airbag module to cool 30 min-
utes before handling.
Deploy an airbag or pretensioner before disposing of
it.
This includes those in a whole vehicle being
scrapped. If the vehicle is still within the warranty peri-
od contact the Daewoo regional service manager for
approval or special instructions before deploying an
airbag module or a pretensioner. Deployed airbag
module or pretensioner should be disposed of in the
same manner as other scrap parts, with the addition
of the following steps :
1. Place the deployed airbag or pretensioner in a
sturdy plastic bag.
2. Seal the plastic bag securely.
3. Wash your hands and rinse them with water after
handling a deployed airbag.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 99
DAEWOO V–121 BL4
SIR WIRING REPAIR
Connector Repair
CAUTION : Before attempting any repairs, the SIR
must be disabled. Refer to ”Disabling the SIR”in
this section for instructions on how to disable the
SIR.
The terminals in the SIR are made of special metal to
provide necessary contact integrity for the sensitive,
low energy circuits. These terminals are available
only in connector repair assembly packs. Do not sub-
stitute any other terminals for those in the assembly
packs.
Wire Repair
CAUTION : Before attempting any repairs, the SIR
must be disabled. Refer to ”Disabling the SIR”in
this section for instructions on how to disable the
SIR.
Do not repair any wires of supplemental inflatable re-
straints(SIR). Replace any damaged wires with new
one.

8B – 102ISUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO V–121 BL4
spring should never be disassembled, and there is no
timekeeping function. The clock spring contains two or
three current–carrying coils. One of the current–carrying
coils maintains continuous contact within the driver de-
ployment loop while the steering wheel is rotated. The
clock spring also contains coils that maintain continuous
contact for horn and remote audio control switch circuit.
Turning the steering wheel in one direction tightens the
coil, and turning the steering wheel in the opposite direc-
tion loosens the coil. Do not turn the clock spring when the
steering wheel is not attached. Refer to ”Clock Spring” in
this section for proper installation of the clock spring.
The clock spring also includes the wiring and the connec-
tors for the horn circuit and the driver airbag circuit. A yel-
low two–way connector on the lower steering column is at-
tached to the clock spring wiring. The yellow connector to
the airbag contains a shorting bar which connects the driv-
er high circuit to driver low circuit when the connector is
disconnected.
The shorting bar prevents current from travelling through
the driver airbag module during servicing. The shorting bar
is disengaged when the clock spring connector is con-
nected.WIRING HARNESS CONNECTORS
If the sensing and diagnostic module (SDM) electrical con-
nector is not attached properly, a built in shorting bar will
connect the wire from airbag warning lamp with the SDM
ground wire. This turns on the airbag indicator . To prevent
deployment during servicing, additional shorting bars are
located in following locations :
S The clock spring electrical connector at the lower
steering column.
S The passenger airbag module.
S The driver airbag module.
S The seat belt pretensioners.
The shorting bar is only a backup safety device. Always
disable the supplemental inflatable restraints(SIR) before
beginning any service procedure.