ECU DAEWOO MATIZ 2003 Service Repair Manual

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–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–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.

DAEWOO M-150 BL2
SECTION 9F
AUDIO SYSTEMS
CAUTION: Disconnect the negative battery cable before removing or installing any electrical unit or when a
tool or equipment could easily come in contact with exposed electrical terminals. Disconnecting this cable
will help prevent personal injury and damage to the vehicle. The ignition must also be in B unless otherwise
noted.
TABLE OF CONTENTS
Description and Operation 9F-2. . . . . . . . . . . . . . . . . .
Stereo Cassette AM/FM Radio with CD Changer
and RDS/Audio Security System 9F-2. . . . . . . . . . . . .
Front and Rear Speakers 9F-2. . . . . . . . . . . . . . . . . . .
Roof Antenna 9F-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tape Player and Cassette Care 9F-2. . . . . . . . . . . . .
Compact Disc Care 9F-2. . . . . . . . . . . . . . . . . . . . . . . .
Component Locator 9F-3. . . . . . . . . . . . . . . . . . . . . . . .
Audio Systems 9F-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diagnostic Information and Procedures 9F-4. . . . .
Audio System 9F-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Repair Instructions 9F-6. . . . . . . . . . . . . . . . . . . . . . . . .
On–Vehicle Service 9F-6. . . . . . . . . . . . . . . . . . . . . . . . . .
Audio System 9F-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CD Changer 9F-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Speakers 9F-8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Speaker Covers 9F-9. . . . . . . . . . . . . . . . . . . . . .
Rear Speakers 9F-9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof Antenna 9F-10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Specifications 9F-11. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 9F-11. . . . . . . . . .
Schematic and Routing Diagrams 9F-12. . . . . . . . . .
Audio System Circuit 9F-12. . . . . . . . . . . . . . . . . . . . . .

9F –2 AUDIO SYSTEMS
DAEWOO M-150 BL2
DESCRIPTION AND OPERATION
STEREO CASSETTE AM/FM RADIO
WITH CD CHANGER AND
RDS/AUDIO SECURITY SYSTEM
The stereo digital logic cassette AM/FM radio with elec-
tronic tape ejection and the stereo digital logic cassette
AM/FM radio with a CD changer located under the front
seat (LH) are optional equipment.
The radio data system (RDS) uses a single button to se-
lect a specific radio station once it is set to the listener’s
preference.
The audio security system is activated whenever the au-
dio system circuit is disconnected from the battery. A
four-digit security code must be entered in order for the
audio system to be functional once again. The security
code is stamped on a card located in the vehicle (usually
in the glove box). One of the following security code en-
tering procedures can be followed.
With RDS
1. With the ignition switch in the I or II position, turn the
radio ON. At this time, “CODE” will be shown on the
radio display.
2. Press the P-UP button until the correct first digit is
shown on the display.
3. Press the P-DN button to move over to the second
digit and then press P-UP once again to enter the cor-
rect second digit.
4. Use steps two and three to enter the third and fourth
digits using the same method.
5. After entering the correct four-digit security code,
press the TP button. “CODE OK” will briefly appear
on the radio display, and the system is ready for use.
Wrong Code
If the wrong code is entered, “ERROR 1” will appear on
the display. After this, “CODE” will appear once again,
and the correct security code can be entered. The timebetween each new coding attempt is doubled; a total of
ten coding attempts can be made.
FRONT AND REAR SPEAKERS
All audio systems use four speakers: two speakers
mounted in the front doors and two speakers mounted in
the rear parcel side shelf.
ROOF ANTENNA
Roof antenna is located on the roof and is designed to
separate the antenna pole from the antenna base. The
antenna pole should be removed to prevent the painting
damage before washing the vehicle. The roof antenna
cannot be adjusted.
TAPE PLAYER AND CASSETTE CARE
The head and the capstan are the two parts of the tape
player that should be cleaned. This service should be
performed every 100 hours of cassette operation.
In order to clean the head and the capstan, use a cotton
swab dipped in rubbing alcohol.
A cassette cleaning kit may also be used to clean the
head and the capstan. Follow the cleaning kit instruc-
tions to clean the tape player.
Do not touch the tape head with magnetized tools. If the
head becomes magnetized, it will degrade cassettes
played in the player. No service is performed on the cas-
settes. The cassette manufacturer handles warranties
of the cassettes. Store cassettes away from extreme
heat and direct sunlight.
COMPACT DISC CARE
Handle discs carefully. Store the discs in protective
cases away from the sun, heat, and dust. If the surface
is soiled, dampen a clean, soft cloth in a solution of mild
neutral detergent and wipe the disc clean. Mini discs
(about 3 inches in diameter), will not eject and should
not be used.

9F –4 AUDIO SYSTEMS
DAEWOO M-150 BL2
DIAGNOSTIC INFORMATION AND PROCEDURES
AUDIO SYSTEM
ConditionProbable CauseCorrection
Audio System Inoperative
The power supply circuit to the
fuse Ef2 is open circuit or short
circuit.
Repair or Replace the power
supply wiring harness.

The fuse Ef2 is blown.
Replace the fuse.

The circuit between the fuse Ef2
and the fuse F11 is open or short.
Repair or Replace the wiring
harness.

The fuse F6 or the fuse F11 is
blown.
Replace the fuse.

The audio system circuit to the
fuse F6 or the fuse F11 is open
circuit or short circuit.
Repair or Replace the wiring
harness.

Poor ground G201.
Replace or Replace the wiring
harness.

Audio system is out of order.
Replace the audio system.
Cassette Player Inoperative,
Bad–quality tape.
Do not use a bad-quality tape.
AM/FM Functions OK
The cassette player destroy a
good–quality tape.
Clean the cassette player head,
the capstan, and the drive system.

Obstructions behind the tape door.
Remove the obstruction using
gentle force.

Cassette player is out of order.
Replace the audio system.
FM Does Not Work, AM and
Cassette OK
Audio system is out of order.
Replace the audio system.
AM Radio Does Not Work, FM
and Cassette OK
AM radio reception is poor (Using
a test antenna, test the AM radio
reception).
Replace the audio system.

AM radio reception is good (Using
a test antenna, test the AM radio
reception).
Replace the antenna cable
between the audio system and the
antenna.
Front Speakers Distorted or
Inoperative
Damage, rattles, or vibration of
the speaker and the door area.
Make the necessary repairs to
secure the component causing the
distortion.

The circuit between the front
speaker connector and the radio
connector is open circuit or short
circuit.
Repair or Replace the wiring
harness.

The connection of the front
speaker connector and the audio
connector is poor.
Confirm the connection.

Front speaker is out of order.
Replace the front speaker.

Audio system is out of order.
Replace the audio system.
Rear Speakers Distorted or
Inoperative
Damage, rattles, or vibration of
the rear speaker and the rear
parael side shelf.
Make the necessary repairs to
secure the component causing the
distortion.

The circuit between the rear
speaker connector and the radio
connector is open circuit or short
circuit.
Repair or Replace the wiring
harness.

9G –14 INTERIOR TRIM
DAEWOO M-150 BL2
D109E570
REAR ROCKER TRIM PANEL
Removal Procedure
1. Remove the rear seat cushion.
D110A508
2. Remove the rear seat belt bolt on the floor.

Remove the bolt (1).

Remove the spacer and the spring washer (2).

Remove the plastic protector from the seat belt an-
chor.
D109E571
3. Pry off the rear rocker trim panel.

Remove the screws securing the rear rocker trim
panel (1).

Remove the clip (2).

Pry off the rear rocker trim panel (3).
D109E572
Installation Procedure
1. Install the rear rocker trim panel with the screws and
the clip.
2. Install the rear seat belt bolt on the floor.
3. Install the rear seat cushion.

DAEWOO M-150 BL2
SECTION 9K
SQUEAKS AND RATTLES
TABLE OF CONTENTS
Diagnostic Information and Procedures 9K-1. . . . .
Squeak and Rattle Diagnosis 9K-1. . . . . . . . . . . . . . . Repair Instructions 9K-3. . . . . . . . . . . . . . . . . . . . . . . . .
On-Vehicle Service 9K-3. . . . . . . . . . . . . . . . . . . . . . . . . .
Squeak and Rattle Repair 9K-3. . . . . . . . . . . . . . . . . .
DIAGNOSTIC INFORMATION AND PROCEDURES
SQUEAK AND RATTLE DIAGNOSIS
ConditionProbable CauseCorrection
Rattle Coming From the
Side Rail
Improperly connected brake
lines.
Tap lightly on the brake lines and listen for a
rattle.

Install plastic tie straps to secure the brake
lines tightly together.
Rattle Under Vehicle at
Higher RPM
The heat shield contacts with
the underbody.
Raise the vehicle and perform a visual
inspection.

Bend the heat shield slightly to gain
clearance from the underbody.
Squeak From the Front
of the Vehicle in Cold
Weather
Poor front stabilizer shaft
insulators taping.
While the vehicle is cold, perform a test drive
and achieve full front suspension travel by
driving through a dip in the road.

Remove the insulators and wrap teflon tape
around the stabilizer shaft. Reinstall the
insulators over the tape.
Thump From Rear of
Vehicle on Bumps
Improperly secured spare tire in
the rear compartment.
Open the rear compartment and perform a
visual inspection of the spare tire and the
tools.

Tightly secure the spare tire and all tools.

Perform a road test to verify that the noise is
eliminated.
Glass Knock Coming
From the Rear of the
Vehicle When Driving
Over Bumps
An out-of-adjustment hatchback
latch.
Test drive the vehicle in order to verify this
condition.

Loosen the latch nuts and adjust the latch
downward.
Rattle Coming From
Door
The door lock solenoid is loose.
Remove the door trim panel and check if the
solenoid is loose.

Tighten the solenoid bolts.

Rattling electrical connectors
inside the door trim panel.
Tap on the trim panel and listen for a rattle.

Remove the trim panel and wrap foam
padding around the connectors as required.
Squeak When
Operating Doors
A lack of lubrication of the door
hinge pins.
Operate the doors and listen for squeaks.

Lubricate the door hinge pins with light oil
and coat with lithium grease.

A lack of lubrication of the door
hold open link arm.
Lubricate the door hold open link arm with
light oil and coat with lithium grease.

SQUEAKS AND RATTLES 9K–3
DAEWOO M-150 BL2
REPAIR INSTRUCTIONS
ON–VEHICLE SERVICE
SQUEAK AND RATTLE REPAIR
Squeaks and rattles are caused by the unwanted move-
ment between parts of a vehicle. There are three means
to prevent squeaks or rattles.

Attach the parts securely so that there is no rela-
tive motion during the operation of the vehicle.

Separate the parts so that there is no contact dur-
ing operation.

Insulate the parts so that no squeaks or rattles oc-
cur with the movement of the parts. Low uniform
friction surfaces can be used to eliminate “stick–
slip” motion.