DAEWOO MATIZ 2003 Service Repair Manual

8B–64 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
D110B304
DIAGNOSTIC ILLUSTRATION 2
Checking the continuity on the instrument harness side
between the terminal J (13) of the assembly line diag-
nostic link and the terminal 4 of the connector C208.
D110B305
DIAGNOSTIC ILLUSTRATION 3
Measuring the wiring harness for the continuity of the
driver side airbag module circuit.
D110B306
DIAGNOSTIC ILLUSTRATION 4
Checking the continuity of the driver airbag circuit on the
sensing and diagnostic module (SDM) side of the clock
spring connector.
D110B307
DIAGNOSTIC ILLUSTRATION 5
Checking the driver airbag circuit for a short to ground
with the sensing and diagnostic module disconnected.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–65
DAEWOO M-150 BL2
D110B308
DIAGNOSTIC ILLUSTRATION 6
Checking the driver airbag circuit for a short to voltage.
D110B309
DIAGNOSTIC ILLUSTRATION 7
Checking the clock spring connector for a short to volt-
age on the sensing and diagnostic module side.
D110B310
.
DIAGNOSTIC ILLUSTRATION 8
Checking the passenger airbag circuit continuity on the
sensing and diagnostic module side of the connector.
D110B311
DIAGNOSTIC ILLUSTRATION 9
Checking the passenger airbag circuit for a short to
ground.

8B–66 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
D110B311
DIAGNOSTIC ILLUSTRATION 10
Checking the passenger airbag circuit for a short to
voltage.
D110B312
DIAGNOSTIC ILLUSTRATION 11
Checking the sensing and diagnostic module voltage
supply at the terminal 5.
D110B313
DIAGNOSTIC ILLUSTRATION 12
Checking the voltage supply on the instrument harness
side at the terminal 2 of the connector C208.
D110B314
DIAGNOSTIC ILLUSTRATION 13
Checking for a short to ground on the sensing and diag-
nostic module side of the supplemental inflatable re-
straints harness at the terminal 3 of the connector C208.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–67
DAEWOO M-150 BL2
D110B315
DIAGNOSTIC ILLUSTRATION 14
Checking for a short to ground in the instrument harness
on the instrument harness side at the terminal 3 of the
connector C208.
D110B316
DIAGNOSTIC ILLUSTRATION 15
Checking the voltage of the warning lamp circuit on the
instrument harness side at the terminal 3 of the connec-
tor C208.
D110B310
.
DIAGNOSTIC ILLUSTRATION 16
Checking the driver seat belt pretensioner circuit conti-
nuity on the sensing and driagnostic module side of the
connector.
D110B311
DIAGNOSTIC ILLUSTRATION 17
Checking the driver seat belt pretensioner circuit for a
short to ground.

8B–68 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
D110B311
DIAGNOSTIC ILLUSTRATION 18
Checking the driver seat belt pretensioner circuit for a
short to voltage.
D110B310
.
DIAGNOSTIC ILLUSTRATION 19
Checking the passenger seat belt pretensioner circuit
continuity on the sensing and driagnostic module side of
the connector.
D110B311
DIAGNOSTIC ILLUSTRATION 20
Checking the passenger seat belt pretensioner circuit
for a short to ground.
D110B311
DIAGNOSTIC ILLUSTRATION 21
Checking the passenger seat belt pretensioner circuit
for a short to voltage.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–69
DAEWOO M-150 BL2
REPAIR INSTRUCTIONS
ON–VEHICLE SERVICE
D110B501
DRIVER 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. Position the steering wheel straight ahead.
3. Remove the driver airbag module mounting bolts.

Remove the airbag module bolt cover (1).

Remove the airbag module torx bolt using a torx
bolt wrench DS 401.
a. Airbag module torx bolt.
D110B502
Caution: When handling an airbag module, always
keep the top of the unit facing upward. This leaves
room for the module to expand if the module unex-
pectedly deploys. Without room for expansion, a
module suddenly propelled toward a person or ob-
ject can cause injury or vehicle damage.
4.Remove the driver airbag module.

Disconnect the driver airbag module connector (1).

Disconnect the horn terminal connector (2).

Remove the driver airbag module (3).
15 Nm
D1AB503A
Installation Procedure
Caution: When removing an airbag module or han-
dling a new airbag module, always keep the top of
the unit facing upward. This leaves room for the
module to expand if the module unexpectedly de-
ploys. Without room for expansion, a module sud-
denly propelled toward a person or object can
cause injury or vehicle damage.
1. Install the driver airbag module.
2. Connect the connectors to the horn terminal and the
driver airbag module.
3. Install the driver airbag module torx bolt using a torx
bolt wrench DS 401.
Tighten
Tighten the torx bolt to 15 Nm (11 lb-ft)
4. Connect the negative battery cable.

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.