2004 DAEWOO NUBIRA steering

6E – 20ISTEERING WHEEL AND COLUMN
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
STEERING WHEEL AND COLUMN
CAUTION : To ensure the energy–absorbing action of
the steering column, it is important to use only the
specified screws, bolts, and nuts, tightened to the
specified torque.
In addition to the steering function, the steering column
provides safety and security.
The energy–absorbing column is designed to compress in
a front–end collision to lessen the chance of driver injury.
The ignition switch and the lock are mounted on the col-
umn, allowing the ignition and steering operations to be
locked to inhibit theft of the car.
The column levers trigger the turn signals, the headlight
beams, and the windshield washer and wipers.The tilt steering column uses telescopic function to allow
the steering wheel to tilt up and down in and out. This en-
ables the driver to adjust the steering wheel to a comfort-
able position.
Notice : Apply a thin coat of lithium grease to all friction
points when reassembling.
The column may be disassembled and reassembled easi-
ly.IGNITION KEY REMINDER
The ignition key reminder alerts the driver that the key is
still in the ignition when the driver attempts to exit the ve-
hicle.
An internal switch in the ignition lock cylinder supplies bat-
tery voltage to the reminder chime module when all of the
following conditions are true:
S The key is in the ignition switch.
S The ignition is OFF.
S The driver’s door is open.
For information on removal and installation of the reminder
chime module, refer to Section 9E, Instrumentation/Driver
Information.

8B – 88ISUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
SERVICE PRECAUTION
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.
DISABLING THE SUPPLEMENTAL
INFLATABLE RESTRAINTS(SIR)
1. Turn the steering wheel to the straight–ahead posi-
tion.
2. Turn the ignition switch to LOCK and remove the
key.
3. Remove the airbag fuse F1 in the I/P fuse block
and wait more than one minute for SIR capacitor to
discharge.
ENABLING THE SUPPLEMENTAL
INFLATABLE RESTRAINTS(SIR)
1. Insert the airbag fuse F8 in the I/P fuse block.
2. Turn the ignition switch to ON and verify that the
airbag indicator flashes seven times and turns OFF.
If it does not operate as described, perform the”
SIR Diagnostic System Check” referring in this sec-
tion.
CAUTION : While turning the ignition switch,
staying well away from the inflator modules, or
personal injury can be occurred.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 89
DAEWOO V–121 BL4
HANDLING, INSTALLATION AND
DIAGNOSIS
S Airbag modules should not be subjected to temper-
ature above 65 degrees Celsius(149 degrees Fahr-
enheit).
S An airbag and SDM should not be used if it has
been dropped from height of 0.9 meters(3 feet) or
greater.
S When an SDM is replaced, it must be oriented with
the arrow on the SDM pointing toward the front of
the vehicle.
S It is very important for the SDM to be installed flat
on the mounting surface, parallel to the vehicle’s
longitudinal axis.
S To avoid setting diagnostic trouble codes(DTCs), do
not apply power to the SIR unless all components
are connected or a diagnostic chart request it.
S The SIR Diagnostic System Check must be the
starting point of any SIR diagnostics. The SIR Diag-
nostic System Check will verify proper airbag indi-
cator operation and will lead you to correct chart to
diagnose any SIR malfunctions. Bypassing these
procedures may result in extended diagnostic time
incorrect parts replacement.
REPAIRS AND INSPECTIONS
REQUIRED AFTER AN ACCIDENT
CAUTION : Any repairs to the vehicle’s structure
must return it to the original production configu-
ration. Deployment requires replacement of
SDM, the inflator modules and a dimensional in-
spection of the steering column.
S If any SIR components are damaged, they must be
replaced. If SIR components mounting points are
damaged, they must be repaired or replaced.
S Never use SIR parts from another vehicle. This
does not include remanufactured parts purchased
from an authorized source.
S Do not attempt to service the SDM, the clock spring
or other airbag modules, these items must be re-
placed if they are defective.
S Verify the part number of replaced airbag modules.
Some inflator modules look identical but contain
different internal components.

8B – 90ISUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO V–121 BL4
ACCIDENT WITH DEPLOYMENT
COMPONENTS REPLACEMENTS
All SIR components must be replaced after frontal
crash involving airbag deployment. After deployment,
a powdery residue may be on the surface of the air-
bag. The powder consists primarily of corn-
starch(used to lubricate the bag as it inflates) and by–
products of the chemical reaction. The sodium
hydroxide then quickly reacts with atmospheric mois-
ture and is converted to sodium bicarbonate(also
known as baking soda). Therefore, it is unlikely that
sodium hydroxide will be present after deployment.
Replace the following SIR components.
CAUTION : Wear gloves and safely glasses dur-
ing the disposal procedure. Refer to ”Deployed
airbag module disposal procedure” in this sec-
tion.
S The SDM
S Airbag modules and pretensioners
S SIR wiring
S Clock spring
ACCIDENT WITHOUT DEPLOYMENT
COMPONENT INSPECTION
Certain inspection must be performed after any
crash, whether the airbag has deployed or not. :
S The steering column must be dimensionally in-
spected.
S Inspect the knee bolsters and mounting points for
distortion, bending and cracking or other damages.
S Inspect the instrument panel(I/P) and steering col-
umn reinforcement plate for distorsion, bending and
cracking or other damage.
S Inspect the I/P braces for distortion, bending and
cracking or other damage.
S Inspect the seat belt and mounting points. Refer to
Section 8A, Seat Belts.
SENSING AND DIAGNOSTIC
MODULE (SDM)
CAUTION : During service procedure, be very
careful when handling the SDM. Never strike or
jar the SDM. Never power the supplemental inflat-
able restraints(SIR) when the SDM is not rigidly
attached to the vehicle. All SDM mounting bolts
must be carefully tightened , and the arrow on the
SDM must be point toward the front of the vehicle
to ensure proper operation of the SIR. The SDM
could be activated if it is powered when it is not
rigidly attached to the vehicle, resulting in unex-
pected deployment and possible injury.

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.

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 – 100ISUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
SUPPLEMENTAL INFLATABLE
RESTRAINTS(SIR)
The supplemental inflatable restraints(SIR) is a safety de-
vice used in conjunction with the seat belt. The air bag
does not replace the fuction of the seatbelt. The driver and
the passengers must always fasten their seat belts and
adjust them for a proper fit.
The SIR is designed to protect the driver and the front seat
passenger in the event of a significant frontal impact to the
vehicle. The airbags deploy if the force is applied from a
direction within 30 degrees of the vehicle’s center line.
The SIR system consists of a
S Driver airbag module
S Driver side airbag module
S Passenger airbag module
S Passenger side airbag module
S Driver’s and front passenger’s seat belt pretension-
ers(and load limiter for some model).
S Sensing and diagnostic module(SDM)
S Clock spring.
S Wire harness and connectors.
S AIRBAG indicator on the instrument cluster.
S Side airbag sensor
AIRBAG MODULES
Driver Airbag Module
CAUTION : Tempering with driver airbag module
creates the risk of an injury from unexpected deploy-
ments. Therefore, the driver airbag module should
never be disassembled.
The driver airbag module is under the center pad of the
steering wheel. The driver airbag module contained an ig-
niter charge and a gas generator to inflate the folded air-
bag.The airbag connector contains a shorting bar, which
makes the circuit shorted when the connector is discon-
nected. The shorting bar prevents current from travelling
through the driver airbag module during servicing. The
shorting bar is disengaged when the connector is con-
nected.
Passenger Airbag Module
CAUTION : Tempering with passenger airbag module
creates the risk of an injury from unexpected deply-
ment. Therefore, the passenger airbag module
should never be disassembled. The passenger airbag
module is on the passenger part of the instrument
panel. The passenger airbag module contains an ig-
niter charge and a gas generator to inflate the folded
airbag .
The passenger airbag module is on the passenger part of
the instrument panel. The passenger airbag module con-
tains an igniter charge and a gas generator to inflate the
folded airbag .
The airbag connector contains a shorting bar, which
makes the circuit shorted when the connector is discon-
nected. The shorting bar prevents current from travelling
through the passenger airbag module during servicing.
The shorting bar is disengaged when the connector is con-
nected.
Side Airbag Module
CAUTION : Tempering with side airbag module
creates the risk of an injury from unexpected deploy-
ments. Therefore, the driver airbag module should
never be disassembled.
The side airbag modules are in the driver’s and passen-
ger’s seats. The side airbag module contains an igniter
charge and a gas generator to inflate the folded airbag .
The airbag connector contains a shorting bar, which
makes the circuit shorted when the connector is discon-
nected. The shorting bar prevents current from travelling
through the side airbag module during servicing. The
shorting bar is disengaged when the connector is con-
nected.