2003 DAEWOO MATIZ Service Repair Manual

8B–70 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
D110B504
CLOCK SPRING
(Left–Hand Drive Shown, Right–Hand
Drive Similar)
Removal Procedure
1. Disconnect the negative battery cable. Wait 1 minute
until the capacitor inside the sensing and diagnostic
module has discharged.
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 lower/upper steering column cover.

Remove the screws (1).

Remove the lower/upper steering column cover(2).
D110B505
5. Disconnect the clock spring and the horn terminal
connector.
6. Disconnect the clock spring and the horn terminal
connector which are banded on the steering column.
7. Remove the clock spring.

Remove the screws (1).

Remove the clock spring (2).
3 Nm
D1AB506A
D110B507
Installation Procedure
Caution: If the clock spring is not properly aligned,
the steering wheel may not be able to rotate com-
pletely during a turn. Restricted turning ability can
cause the vehicle to crash. Improper alignment of
the clock spring also may make the supplemental
inflatable restraints (SIR) system inoperative, pre-
venting the airbags from deploying during a crash.
Both of these outcomes can result in injury.
Notice: Turning the clock spring more than three turns
clockwise or more than three turns counterclockwise
can damage the spring.
1. Turn the front wheels straight ahead.
2. Install the clock spring with the screws.
Tighten
Tighten the clock spring mounting screws to 3 Nm
(27 lb-in)
Important: The clock spring may come packed in mate-
rial used to prevent damage to the spring during ship-
ping or storage. Avoid installing any of the packing
material with the clock spring.
3. Turn the label of the clock spring clockwise to lock.
4. Turn the label of the clock spring counterclockwise
approximately three turns to the neutral positions with
the front wheels ahead.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–71
DAEWOO M-150 BL2
5. Properly align the pointed marks () on the com-
ponents of the clock spring.
6. Connect the electrical connectors on the lower
spring steering column.
7. Install the lower/upper steering column cover.
8. Install the steering wheel. Refer to Section 6E,
Steering Wheel and Column.
9. Connect the driver airbag module and the horn con-
nectors.
10. Install the driver airbag module. Refer to “Driver air-
bag module” in this section.
11. Connect the negative battery cable.
D110B508
PASSENGER AIRBAG MODULE
(Left–Hand Drive Shown, Right–Hand
Drive Similar)
Tool Required
DS 401 Torx Bolt Wrench.
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the glove box. Refer to Section 9E, Instru-
ment/Driver Information.
3. Disconnect the passenger airbag module connector.
D110B509
4. Remove the passenger airbag module.

Remove the nuts (1).

Remove the airbag module torx bolts using a torx
bolt wrench DS 401.
a. Passenger airbag module torx bolt.

Remove the passenger airbag module (2).
15 Nm 10 Nm
D1AB510A
Installation Procedure
1. Install the passenger airbag module.
2. Install the passenger airbag module mounting torx
bolts and the nuts using a torx bolt wrench DS 401.
Tighten

Tighten the passenger airbag module torx bolts to
15 Nm (11 lb-ft).
a. Passenger airbag module torx bolt.

Tighten the passenger airbag module nuts to 10
Nm (89 lb-in).
b. Passenger airbag module nut.
Notice : Do not reuse the removed torx bolts.
Replace the torx bolts with the new ones.

8B–72 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
D1AB508A
3. Connect the passenger airbag module connector.
4. Install the glove box. Refer to Section 9E, Instrument/
Driver Information.
5. Connect the negative battery cable.
D19E573A
SENSING AND DIAGNOSTIC
MODULE (SDM)
Tool Required
DS 401 Torx Bolt Wrench.
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the floor console. Refer to Section 9G, Inte-
rior Trim.
D110B511
3. Remove the SDM.

Disconnect the SDM electrical connector (1).

Remove the torx bolts using a torx bolt wrench DS
401 (2).

Remove the SDM (3).
D1AB512A
Installation Procedure
Notice: Do not install an SDM that has been dropped or
has water damage, dents, cracks, or other visible de-
fects. Attempted use of a defective SDM can result in
vehicle damage.
1. Install the SDM with the mounting torx bolts so that
the arrow on the SDM label points toward the front of
the vehicle.
Notice : Ground the wiring harness to the mounting torx
bolt (1).
Tighten
Tighten the SDM mounting torx bolts to 15 Nm (11
lb-ft).
2. Connect the SDM electrical connector.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–73
DAEWOO M-150 BL2
D110B009A
3. Install the floor console. Refer to Section 9G, Interior
Trim.
4. Connect the negative battery cable.
5. Check for proper operation of the system.

Turn the ignition ON while watching the supple-
mental inflatable restraints warning lamp.

The warning lamp should turn ON for about 4 sec-
onds, and then turn OFF.

8B–74 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
D110B010
AIRBAG MODULE DEPLOYMENT
(IN VEHICLE)
(Left–Hand Drive Shown, Right–Hand
Drive Similar)
Deploy the airbags before disposing of them. This in-
cludes those in a whole vehicle being scrapped.
If the vehicle is still within the warranty period, contact
the Daewoo regional service manager for approval or
special instructions before deploying the airbag mod-
ules.
Caution: Before deploying the airbags, remove all
loose objects from the airbags expansion area.
Caution: Deploy the airbags with the vehicle doors
closed and the side windows open.
Caution: Deploy the airbags only in an evacuated
area. Service personnel who must be present dur-
ing the deployment should be at least 10 meters
(33 feet) in front of the vehicle.
Caution: Do not connect the voltage source until af-
ter having completed all other preparations for the
deployment of the airbags.
Caution: Allow a deployed airbag module to cool
for at least 30 minutes before handling.
Caution: Wear the gloves and the eye protectors
during the disposal process.
Caution: If the deployment fails, disconnect the volt-
age source and wait 5 minutes before approaching
the vehicle.
Deployment Procedure
1. Disconnect both battery cables and place the battery
at least 10 meters (32.8 feet) from the vehicle.
Caution: Wait 1 minute after disconnecting both
battery cables to allow the capacitor inside the
sensing and diagnostic module (SDM) to discharge
before taking any other action. The capacitor sup-
plies the reserve power to deploy the airbags, even
if the battery is disconnected. Unintentional deploy-
ment of the airbags can cause injury.
2. Remove the lower cover from the steering column.
3. At the lower steering column, cut the two wires lead-
ing from the supplemental inflatable restraint (SIR)
harness to the clock spring.
4. Strip 13 mm (0.5 inch) of insulation from the ends of
the wires leading to the clock spring.
5. Use two additional wires, each at least 10 meters
(33 feet) long, to reach from the deployment battery
to the airbag module.
6. Strip 13 mm (0.5 inch) of insulation from the ends of
these two additional wires.
7. Twist the two wires together at one end.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–75
DAEWOO M-150 BL2
D110B011A
8. Place the twisted ends of the two wires near the de-
ployment 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 wire from the airbag module.
10. Wrap the splices with insulating 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 deploy-
ment battery, clear the area.
12. Untwist the wires that are near the deployment
battery.
13. Touch one wire to the positive battery terminal and
touch the other wire to the negative battery terminal.
The airbag will deploy.
14. Repeat the procedure for the passenger airbag,
cutting the wires to the passenger airbag module
instead of the wires leading to the clock spring.
15. Strip 13 mm (0.5 inch) of insulation from the ends of
the wires leading to the passenger airbag module.
16. Use two additional wires, each at least 10 meters
(33 feet) long, to reach from the deployment battery
to the passenger airbag module.
17. Strip 13 mm (0.5 inch) of insulation from the ends of
these two additional wires.
18. Twist the two wires together at one end.
19. Place the twisted ends of the two wires near the de-
ployment battery. Do not connect the wires to the
battery at this time.
20. Using the free ends of the 10 meter (33 feet) wires to
the passenger airbag module, make two splices,
one at each wire from the airbag module.
21. Wrap the splices with insulating tape.
22. Now that the free ends of the 10 meters (33 feet)
wires are spliced to the passenger airbag module
wires, and the ends that are twisted together are
near the deployment battery, clear the area.
23. Untwist the wires that are near the deployment
battery.
24. Touch one wire to the positive battery terminal and
touch the other wire to the negative battery terminal.
The passenger airbag will deploy.
25. Using the proper precautions, dispose of the
deployed airbag. Refer to “Deployed Airbag Module
Disposal Procedure” in this section.

8B–76 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
AIRBAG MODULE DEPLOYMENT
(OUTSIDE OF VEHICLE)
Deploy all intact airbag modules that have been

Removed from a scrapped vehicle.

Found to be defective.

Found to have been damaged during transit, storage,
or service.
Caution: Deploy the airbags only in an evacuated
area. Service personnel who must be present dur-
ing the deployment should be at least 10 meters
(33 feet) in front of the vehicle.
Caution: Do not connect the voltage source until
completing all other preparations for the deploy-
ment of the airbags.
Caution: Allow a deployed airbag module to cool
for at least 30 minutes before removing it from the
vehicle.
Caution: Wear gloves and eye protection during the
disposal process.
Caution: If the deployment fails, disconnect the volt-
age source and wait 5 minutes before approaching
the vehicle.
1. Position the airbag module face up, on flat ground
outdoors, at least 10 meters (33 feet) from any ob-
stacles or people.
2. Place a vehicle battery at least 10 meters (33 feet)
away from the airbag module.
3. Deploy the airbag module using the deployment tool.
4. Using the proper precautions, dispose of the
deployed airbag. Refer to “Deployed Airbag Module
Disposal Procedure” in this section.
DEPLOYED AIRBAG MODULE
DISPOSAL PROCEDURE
Caution: After an airbag module has been
deployed, the surface of the airbag may contain a
powdery residue. The powder lubricates the airbag
as it inflates. The dust that is produced as a by-
product of the deployment is unlikely to be harmful,
but use the gloves and the safety glasses in order to
prevent any possible irritation of the skin and the
eyes.
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 modules near any flammable objects, and al-
low the airbag modules to cool for 30 minutes be-
fore handling them.
Deploy an airbag before disposing of it. This includes
those in a whole vehicle being scrapped.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–77
DAEWOO M-150 BL2
D110B012
If the vehicle is still within the warranty period, contact
the Daewoo regional service manager for approval or
special instructions before deploying an airbag module.
Deployed airbag modules should be disposed of in the
same manner as any other scrap parts, with the addition
of the following steps:
1. Place the deployed airbag 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.