steering DAEWOO MATIZ 2003 Service Owners Manual

7B–20 MANUAL CONTROL HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM
DAEWOO M-150 BL2
D108B507
RECEIVER DRYER BRACKET
Removal Procedure
1. Remove the front bumper fascia. Refer to Section
9O, Bumpers and Fascias.
2. Remove the receiver dryer bracket.
Remove the receiver dryer bracket bolt (1).
Remove the receiver dryer bracket–to–body bolts
(2).
D18B508B
Installation Procedure
1. Install the receiver dry bracket with the bolts.
Tighten
Tighten the receiver dryer bracket–to–body bolts
to 5 Nm (44 lb-in) (1).
Tighten the receiver dryer bracket bolt to 5 Nm
(44 lb-in) (2).
2. Install the front bumper fascia. Refer to Section 9O,
Bumpers and Fascias.
D108B509
D18B510A
COMPRESSOR
Removal Procedure
1. Remove the receiver dryer. Refer to “Receiver Dryer
and Dual Cut Switch” in this section.
2. Remove the A/C belt. Refer to Section 6B, Power
Steering Pump.
3. Remove the compressor.
Discharge and recover the refrigerant. Refer to
“Discharging, Adding Oil, Evacuating, and Charg-
ing Provedures for A/C System” in this section.
Remove the bolt securing the low pressure pipe
line to the compressor (1).
Remove the bolt securing the high pressure pipe
line to the compressor (2).
Disconnect the electrical connector (3).
Remove the upper bolt mounting the compressor–
to–bracket (4).
Remove the lower bolts mounting the compres-
sor–to–bracket (5).

SUPPLEMENTAL INFLATABLE RESTRAINTS (SIR) 8B–3
DAEWOO M-150 BL2
DESCRIPTION AND OPERATION
(Left–Hand Drive Shown, Right–Hand Drive Similar)
AIRBAG MODULE
Driver Airbag Module
Caution: Tampering with the driver side airbag
module creates the risk of an injury from an unex-
pected deployment. Therefore, the driver side air-
bag module should never be disassembled.
The driver airbag module is under the center pad on the
steering wheel.
The driver airbag module contains an ignitor charge and
a gas generator to inflate the folded airbag.
D110B006
Passenger Airbag Module
Caution: Tampering with the passenger side airbag
module creates the risk of an injury from an unex-
pected deployment. Therefore, the passenger side
airbag module should never be disassembled.
The passenger airbag module is on the passenger side
of the instrument panel.
The passenger airbag module contains an ignitor charge
and a gas generator to inflate the folded airbag.
SENSING AND DIAGNOSTIC
MODULE (SDM)
The SDM

Has no user-serviceable parts.

Is under the front console assembly.

Continuously monitors the system components.

Records any faults which are discovered.
Illuminates a warning lamp that alerts the driver to
any faults.

Allows the fault codes to be retrieved with a scan tool.
The SDM controls the deployment of the airbag system
through the use of the

Arming sensor.

Capacitor.

Crash sensor, or accelerometer.
D110B007
Arming Sensor
The arming sensor is safety device made up of a dual-
contact, electro-mechanical switch that:

Acts independently of the electronic components.

Keeps the firing circuits for the airbags unarmed un-
der normal driving conditions.

Allows the airbags to deploy under the required
conditions.
Capacitor
The capacitor provides reserve power.
Crash Sensor
The crash sensor, or accelerometer, electronically rep-
resents the acceleration or deceleration of the vehicle
during a frontal impact. In this electronic representation,
the electrical signal is proportional to the acceleration or
deceleration of the vehicle.
SIR WARNING LAMP
The supplemental inflatable restraints (SIR) system in-
cludes a self-diagnostic function.

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–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


–

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.