2003 DAEWOO MATIZ clock

8B–2 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
Diagnostic Illustration 8 8B-65. . . . . . . . . . . . . . . . . . .
Diagnostic Illustration 9 8B-65. . . . . . . . . . . . . . . . . . .
Diagnostic Illustration 10 8B-66. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 11 8B-66. . . . . . . . . . . . . . . . . . .
Diagnostic Illustration 12 8B-66. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 13 8B-66. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 14 8B-67. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 15 8B-67. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 16 8B-67. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 17 8B-67. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 18 8B-68. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 19 8B-68. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 20 8B-68. . . . . . . . . . . . . . . . . .
Diagnostic Illustration 21 8B-68. . . . . . . . . . . . . . . . . .
Repair Instructions 8B-69. . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 8B-69. . . . . . . . . . . . . . . . . . . . . . . . . Driver Airbag Module 8B-69. . . . . . . . . . . . . . . . . . . . .
Clock Spring 8B-70. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Passenger Airbag Module 8B-71. . . . . . . . . . . . . . . . .
Sensing and Diagnostic Module (SDM) 8B-72. . . . . .
Airbag Module Deployment (In Vehicle) 8B-74. . . . . .
Airbag Module Deployment (Outside
of Vehicle) 8B-76. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deployed Airbag Module Disposal Procedure 8B-76
Specifications 8B-78. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 8B-78. . . . . . . . . .
Special Tools and Equipment 8B-78. . . . . . . . . . . . . .
Special Tools Table 8B-78. . . . . . . . . . . . . . . . . . . . . . .
Schematic and Routing Diagrams 8B-79. . . . . . . . . .
Supplemental Inflatable Restraints (SIR)
Electrical Schematic 8B-79. . . . . . . . . . . . . . . . . . . .

8B–4 SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR)
DAEWOO M-150 BL2
If there is a failure of the sensing and diagnostic module
or the external circuits, the SIR warning lamp in the in-
strument cluster turns ON.
As a system check, the SIR warning lamp also turns ON
when the ignition is first switched to the ON position.
Correct Functioning
The system is working properly if:

The SIR warning lamp turns OFF after approximately
four seconds.
Faulty Functioning
The system is not working properly, meaning one of the
SIR components or the wiring connector is faulty, if:

The SIR warning lamp fails to turn ON when the
ignition is first switched ON.

The SIR warning lamp remains ON.
D110B009A
CLOCK SPRING
The clock spring:

Is on the steering column.

Contains a coil that is the electrical contact between
the steering column wiring harness and the driver
side airbag module.

Is part of the circuit for the horn.
Notice: Turning the steering wheel more than three and
one-quarter turns may damage the clock spring.
Turning the steering wheel:

In one direction tightens the coil.

In the opposite direction loosens the coil.

More than three and one-quarter turns may damage
the clock spring.
Caution: Disassembling the clock spring can cause
injury and vehicle damage.The clock spring should never be disassembled.
The clock spring must be replaced if the airbags have
been deployed.
D110B008A
WIRING HARNESS/CONNECTORS
The connector for the sensing and diagnostic module
(SDM) has a built-in shorting bar that will turn ON the
warning lamp if there is a poor connection at the SDM.
As an anti-deployment mechanism, additional shorting
bars are in the

Connector for the clock spring at the lower steering
column.

Passenger airbag module connector.

SDM connector.
When these connectors are separated, the shorting
bars will short circuit any current which is applied, pre-
venting the current from reaching the airbag modules.
SIR SYSTEM
The supplemental inflatable restraints (SIR) system is a
safety device used in conjunction with the seat belts.
The airbag does not replace the function of the seat belt.
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 im-
pact to the vehicle. The airbags deploy if the force is ap-
plied from a direction within 30 degrees of the vehicle’s
centerline and above 25 km/h (15 mph) speed.
The SIR consists of a

Driver airbag module.

Passenger airbag module.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–5
DAEWOO M-150 BL2

Sensing and diagnostic module.

Steering column clock spring.

Wiring harness.

SIR malfunction warning lamp.
D110B001
GENERAL PRECAUTIONS
The supplemental inflatable restraints (SIR) warning
lamp must illuminate when the ignition is switched ON,
and then turn OFF after approximately 4 seconds.
There is a fault in the airbag system if

The warning lamp does not turn OFF.

The warning lamp illuminates while the vehicle is in
operation.If the warning lamp indicates there is a fault in the airbag
system, assume that the SIR system may not be
functional.
Caution: Failure to follow all service procedures in
the correct sequence can cause the airbag system to
deploy unexpectedly and possibly cause a serious
injury.
Only trained personnel at franchised Daewoo dealers
and authorized Daewoo service dealerships may service
the airbag system.
Never attempt to disassemble, repair, or reuse the

Airbag modules.

Clock spring.

Sensing and diagnostic module.

Wiring harness.
When making SIR repairs,

Inspect any SIR part before it is installed.

Use only new parts.

Do not install used SIR parts from other vehicles.

Do not install any part that has been dropped or that
has dents, cracks, or other defects.
AIRBAG DEPLOYMENT CONDITION
Airbag is designed to deploy under 30 left/right angle
barrier and above 25 km/h (15 mph) speed.
Concrete Barrier Deployment Condition
In case of the 0 frontal concrete battier, airbag may
deploy above 25 km/h (15 mph) speed.

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B – 7
DAEWOO M-150 BL2
COMPONENT LOCATOR
SIR COMPONENT
(Left–Hand Drive Shown, Right–Hand Drive Similar)
D110B401
1. Driver Airbag Module
2. Passenger Airbag Module
3. Clock Spring4. Sensing and Diagnostic Module (SDM)
5. Wiring Harness

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–15
DAEWOO M-150 BL2
DTC 01 – Driver Firing Circuit, Resistance Too High
Step Action Value(s) Yes No

1


Examine the wiring and the connector at the driver
airbag module.
Is the connector disconnected?
–

Go to Step 2

Go to Step 3




2





1. Reconnect the driver airbag module connector.
2. Reinstall the driver airbag module in the steering
wheel.
3. Reconnect the negative battery terminal.
Is the repair complete?



–





Go to
Diagnostic
System Check




–












3












1. Remove the driver airbag module.
2. Place the driver airbag module in a secure
position with the decorative surface facing
upward.
3. Disconnect the electrical connector at the SDM.

The shorting bar at the disconnected SDM
connector will create a complete circuit
between the wires from the driver airbag
module.
4. Connect an ohmmeter to the terminals of the
wiring harness connector for the driver airbag
module.

Refer to ‘‘Diagnostic Illustration 3’’ in this
section.
Does the ohmmeter indicate the specified value?










≈0












Go to Step 4











Go to Step 6




4




1. Replace the SDM.
2. Reconnect the negative battery cable.
3. Set the scan tool for CODE ERASE.
4. Do the diagnostic system check.
Does the code 01 still show as a current fault?


–



Go to Step 5



System OK



5



1. Replace the driver airbag module.
2. Reconnect the negative battery terminal.
Is the repair complete?

–



Go to
Diagnostic
System Check

–








6








1. Disconnect the clock spring wiring harness
connector at the lower steering column.

The shorting bar at the disconnected SDM
connector will create a complete circuit
between the wires from the clock spring.
2. Connect an ohmmeter to the terminals at the
SDM side of the clock spring connector.

Refer to ‘‘Diagnostic Illustration 4’’ in this
section.
Does the ohmmeter show the specified value?






≈ 0








Go to Step 7







Go to Step 8

7


1. Replace the clock spring.
2. Reconnect the negative battery terminal.
Is the repair complete?

–


Go to
Diagnostic
System Check

–

8



1. Replace the SIR wiring harness.
2. Reconnect the negative battery cable.
Is the repair complete?


–



Go to
Diagnostic
System Check


–

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–17
DAEWOO M-150 BL2
DTC 02 – Driver Firing Circuit, Resistance Too Low
Step Action Value(s) Yes No







1







1. Remove the driver airbag module.
2. Store the driver airbag module with the decorative
side facing upward.
3. Connect an ohmmeter to the terminals of the
wiring harness connector for the driver airbag
module.

Refer to ‘‘Diagnostic Illustration 3’’ in this
section.
Does the ohmmeter show the specified value?





∞






Go to Step 2






Go to Step 4




2




1. Replace the SDM.
2. Reconnect the negative battery cable.
3. Set the scan tool to CODE ERASE.
4. Do the diagnostic system check.
Does the code 02 still show as a current fault?



–




Go to Step 3




System OK

3



1. Replace the driver airbag module.
2. Reconnect the negative battery cable.
Is the repair complete?


–



Go to
Diagnostic
System Check


–





4






1. Disconnect the clock spring wiring harness
connector at the lower steering column.
2. Connect an ohmmeter to the terminals at the
SDM side of the clock spring connector.

Refer to ‘‘Diagnostic Illustration 4’’ in this
section.
Does the ohmmeter show the specified value?




∞





Go to Step 5





Go to Step 6



5



1. Replace the clock spring.
2. Reconnect the negative battery cable.
Is the repair complete?

–



Go to
Diagnostic
System Check

–



6



1. Replace the supplemental inflatable restraints
(SIR) wiring harness.
2. Reconnect the negative battery cable.
Is the repair complete?

–



Go to
Diagnostic
System Check


–

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–19
DAEWOO M-150 BL2
DTC 03 – Driver Firing Circuit, Short To Ground
Step Action Value(s) Yes No

1


Visually inspect the supplemental inflatable
restraints (SIR) wiring harness for damage.
Is there any visible damage to the SIR harness?
–

Go to Step 2

Go to Step 3

2



1. Replace the SIR wiring harness.
2. Reconnect the negative battery cable.
Is the repair complete?

–



Go to
Diagnostic
System Check


–













3













1. Remove the driver airbag module.
2. Place the driver airbag module in a secure
position with the decorative surface facing
upward.
3. Disconnect the electrical connector at the SDM.

The shorting bar at the disconnected SDM
connector will create a complete circuit be-
tween the wires from the driver airbag
module.
4. Use an ohmmeter to check the continuity
between ground and one of the terminals on the
wiring harness connector for the driver airbag
module.

Refer to ‘‘Diagnostic Illustration 5’’ in this
section.
Is the resistance less than the specified value?











∞












Go to Step 6












Go to Step 4






4






1. Replace the SDM.
2. Reconnect the negative battery cable.
3. Set the scan tool for CODE ERASE.
4. Do the diagnostic system check.

Refer to the “Diagnostic System Check” in this
section.
Does the code 03 still show as a current fault?




–





Go to Step 5





System OK

5


1. Replace the driver airbag module.
2. Reconnect the negative battery cable.
Is the repair complete?
–


Go to
Diagnostic
System Check
–






6







1. Disconnect the clock spring wiring harness
connector at the lower steering column.

The shorting bar at the disconnected SDM
connector will create a complete circuit be-
tween the wires from the clock spring.
2. Using an ohmmeter, check for continuity between
ground and one of the terminals on the SDM side
of the clock spring connector.
Is the resistance less than the specified value?






∞







Go to Step 2







Go to Step 7

7



1. Replace the clock spring.
2. Reconnect the negative battery terminal.
Is the repair complete?


–



Go to
Diagnostic
System Check


–

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–21
DAEWOO M-150 BL2
DTC 04 – Driver Firing Circuit, Short To Battery Voltage
Step Action Value(s) Yes No

1


Visually inspect the supplemental inflatable
restraints (SIR) harness for damage.
Is there any visible damage to the SIR harness?
–

Go to Step 2

Go to Step 3

2



1. Replace the SIR wiring harness.
2. Reconnect the negative battery cable.
Is your repair complete?

–



Go to
Diagnostic
System Check


–












3












1. Remove the driver airbag module.
2. Place the driver airbag module in a secure
position with the decorative surface facing
upward.
3. Disconnect the electrical connector at the SDM.

The shorting bar at the disconnected SDM
connector will create a complete circuit be-
tween the wires from the driver airbag
module.
4. Use a multimeter to check the voltage at one of
the terminals on the wiring harness connector for
the driver airbag module.

Refer to ‘‘Diagnostic Illustration 6’’ in this
section.
Is the voltage greater than the specified value?










0 v











Go to Step 6











Go to Step 4




4




1. Replace the SDM.
2. Reconnect the negative battery cable.
3. Set the scan tool for CODE ERASE.
4. Do the diagnostic system check.
Does the code 04 still show as a current fault?


–



Go to Step 5



System OK


5



1. Replace the driver airbag module.
2. Reconnect the negative battery cable.
Is the repair complete?

–



Go to
Diagnostic
System Check


–









6









1. Disconnect the clock spring wiring harness at the
lower steering column.

The shorting bar at the disconnected SDM
connector will create a complete circuit be-
tween the wires from the clock spring
connector.
2. Using a multimeter, check the voltage at one of
the terminals on the SDM side of the clock spring
connector.

Refer to ‘‘Diagnostic Illustration 7’’ in this
section.
Did the voltmeter indicate the specified value?







0 v








Go to Step 7








Go to Step 2

7



1. Replace the clock spring.
2. Reconnect the negative battery cable.
Is the repair complete?

–



Go to
Diagnostic
System Check


–