ECU DAEWOO NUBIRA 2004 Service Repair Manual

AUDIO SYSTEMS 9F – 5
DAEWOO V–121 BL4
FM Radio Does Not Work, AM and Cassette OK
StepActionValue(s)YesNo
11. Unplug the antenna cable from the antenna.
2. Connect the test antenna to the antenna cable.
3. Check the FM radio reception.
Is the FM radio operating properly?–Go to Step 2Go to Step 3
2Replace the antenna.
Is the repair complete?–System OK–
31. Remove the cassette radio from the instrument
panel.
2. Unplug the antenna cable from the audio sys-
tem.
3. Plug the test cable into the audio system.
4. Check the FM radio reception.
Is the FM radio operating properly?–Go to Step 4Go to Step 5
4Replace the antenna cable between the audio sys-
tem and the antenna.
Is the repair complete?–System OK–
5Replace the cassette radio.
Is the repair complete?–System OK–
SPEAKERS
Front Speakers Distorted or Inoperative, Rest of Audio System OK
StepActionValue(s)YesNo
11. Turn the ignition and the radio ON.
2. Check for distorted or inoperative front speak-
ers using the fader and the balance controls
with all of the sources (AM, FM, tape, CD).
Are the front speakers distorted?–Go to Step 2Go to Step 4
2Check the speaker and the door area for damage,
rattles, or vibration.
Is there anything loose or in the way of the speaker
causing the distortion?–Go to Step 3Go to Step 4
3Make the necessary repairs to secure the compo-
nent causing the distortion.
Is the repair complete?–System OK–
41. Remove the front speakers and disconnect the
speaker connector.
2. Using an ohmmeter, test the speaker wires for
a short to ground.
Does the ohmmeter show the specified value?Go to Step 6Go to Step 5
5Repair the short circuit between the front speaker
connector and the radio connector.
Is the repair complete?–System OK–
6Substitute a known good speaker for the speaker
causing the distortion.
Is the distortion eliminated?–Go to Step 7Go to Step 8

9F – 6IAUDIO SYSTEMS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
7Replace the speaker.
Is the repair complete?–System OK–
8Replace the cassette radio.
Is the repair complete?–System OK–
Rear Speakers Distorted or Inoperative, Rest of Audio System OK
StepActionValue(s)YesNo
11. Turn the ignition and the radio on.
2. Check for distorted or inoperative rear speak-
ers using the fader and the balance controls
with all the of the sources (AM, FM, tape, CD).
Are the rear speakers distorted?–Go to Step 2Go to Step 4
2Check the speakers, the rear deck, and the trunk
area for damage, rattles, or vibration.
Is there anything loose or in the way of the speaker
causing the distortion?–Go to Step 3Go to Step 4
3Make the necessary repairs to secure the compo-
nent causing the distortion.
Is the repair complete?–System OK–
41. Disconnect the rear speakers.
2. Using an ohmmeter, test the speaker wires for
a short to ground.
Does the ohmmeter show the specified value?Go to Step 6Go to Step 5
5Repair the short circuit between the rear speaker
connector and the radio connector.
Is the repair complete?–System OK–
6Substitute a known good speaker for the speaker
causing the distortion.
Is the distortion eliminated?–Go to Step 7Go to Step 8
7Replace the speaker.
Is the repair complete?–System OK–
8Replace the audio system.
Is the repair complete?–System OK–

AUDIO SYSTEMS 9F – 11
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
STEREO CASSETTE AM/FM RADIO
There are three audio systems offered. The stereo digital
logic cassette AM/FM radio with electronic tape ejection
is offered in standard and deluxe models. Both models
feature RDS (radio data system) which automatically se-
lects the best station within the chain of RDS stations cur-
rently being listened to. A trunk mounted CD changer is
also available.
AUDIO SCURITY SYSTEM
The audio security system is activated whenever the audio
system circuit is disconnected from the battery. A four–
digit security code must be entered in order for the audio
system to resume functioning. The security code is
stamped on a card located in the vehicle (usually in the
glove box). The following security code entering proce-
dure must be used to deactivate the audio security sys-
tem:
1. After connecting the audio security system to the
battery, ”CODE” will flash on the display.
2. Enter the proper security number into the unit, us-
ing the preset buttons No. 1 through 8.
3. For example, if the security number is ”1234”:
a. Press the preset button No. 1. ”CODE” will
disappear and ”1 – – – ” will appear on the dis-
play.
b. Press the preset button No. 2, and ”12 – – ”
will appear.
c. Press the preset button No. 3, and ”123– ” will
appear.
d. Press the preset button No. 4, and ”1234” will
appear and flash three times.4. The audio system will function and will transfer to
the radio.
If the incorrect security number is entered into the unit,
”Err” will appear followed by ”CODE” and there will be sev-
eral audible beeps. If this happens, repeat the security en-
tering procedure beginning with Step 2.
SPEAKERS
All audio systems use eight speakers, four speakers and
four tweeters mounted in each door.
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 per-
formed every 100 hours of cassette operation.
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 instructions 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 de-
tergent and wipe the disc clean.

SECTION : 9G
INTERIOR TRIM
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 LOCK unless otherwise noted.
TABLE OF CONTENTS
SPECIFICATIONS9G–1 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 9G–1. . . . . . . . . . .
SPECIAL TOOLS9G–2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools Table 9G–2. . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR9G–3 . . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 9G–3. . . . . . . . . . . . . . . . . . . . .
Front Door Trim Panel 9G–3. . . . . . . . . . . . . . . . . . . . . .
Rear Door Trim Panel 9G–4. . . . . . . . . . . . . . . . . . . . . .
A–pillar Trim Panel 9G–4. . . . . . . . . . . . . . . . . . . . . . . . .
Upper B–pillar Trim Panel 9G–5. . . . . . . . . . . . . . . . . . .
Lower B–pillar Trim Panel 9G–5. . . . . . . . . . . . . . . . . . .
C–pillar Trim Panel 9G–6. . . . . . . . . . . . . . . . . . . . . . . . .
Deck Lid Sill Plate Cover 9G–6. . . . . . . . . . . . . . . . . . .
Front Rocker Trim Panel 9G–7. . . . . . . . . . . . . . . . . . . .
Rear Rocker Trim Panel 9G–7. . . . . . . . . . . . . . . . . . . .
Front Wheelhouse Trim 9G–8. . . . . . . . . . . . . . . . . . . . .
Rear Wheelhouse Trim 9G–8. . . . . . . . . . . . . . . . . . . . .
Floor Console 9G–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Floor Carpet 9G–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Compartment Rear Low Cover 9G–11. . . . .
Luggage Compartment Wheelhouse Trim
Panel 9G–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Driver’s Side Knee Bolster 9G–12. . . . . . . . . . . . . . . . .
Hatchback Door Lower Garnish Molding 9G–13. . . . .
Hatchback Door Upper Garnish Molding 9G–14. . . . .
Luggage Compartment Wheelhouse Trim Panel
(HATCHBACK) 9G–14. . . . . . . . . . . . . . . . . . . . . . . . .
Luggage Compartment Rear Trim Panel 9G–14. . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION9G–16 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interior Trim Panels 9G–16. . . . . . . . . . . . . . . . . . . . . . .
Pressure Relief Vent 9G–16. . . . . . . . . . . . . . . . . . . . . .
Floor Console 9G–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Floor Carpet 9G–16. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Compartment Security Cover
(HATCHBACK) 9G–16. . . . . . . . . . . . . . . . . . . . . . . . .
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Door Trim Panel Screws2.5–22
Driver’s Side Knee Bolster Mounting Bolts10–89
Floor Console Screws2.5–22
Gearshift Housing Bolts8–70
Hood Latch Release Handle Mounting Screw3–27
Seat Belt Anchor Bolt3828–

9G – 16IINTERIOR TRIM
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
INTERIOR TRIM PANELS
The interior trim panels are molded plastic and fasten with
screws or plastic clips.
PRESSURE RELIEF VENT
When all the windows are closed and the ventilation sys-
tem is on, the addition of outside air to the interior of the
vehicle causes a positive pressure within the vehicle. To
relieve the pressure, air is released through a pressure re-
lief vent. The pressure relief vents are located at the rear
quarter of the vehicle, behind the bumper fascia.
FLOOR CONSOLE
The floor console fits over the tunnel in the floor of the ve-
hicle and extends from under the center of the instrument
panel to the rear seat area. The front portion of the consolecontains the cigar lighter and the transaxle shift lever. The
rear portion of the console contains the parking brake le-
ver, a cupholder, a storage compartment, and an ashtray
for the rear seat occupants.
The sensing and diagnostic module (SDM) for the airbag
system and the remote keyless entry module are located
under the console.
FLOOR CARPET
The one–piece floor carpet goes over both the front and
the rear floor pans.
REAR COMPARTMENT SECURITY
COVER (HATCHBACK)
A rear compartment security cover is provided on the
hatchback model. The security cover is attached to the
hatch and can be easily removed if more cargo space is
needed.

SEATS 9H – 3
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
FRONT BUCKET SEAT
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the plastic caps and the bolts securing the
rear portion of the front seat to the floor.
3. Remove the plastic caps and the bolts securing the
front portion of the front seat to the floor.
4. Disconnect the electrical connectors.
5. Remove the seat.
Installation Procedure
1. Install the seat.
2. Connect the electrical connectors.
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
3. Install the bolts into the front portion of the front
seat.
Tighten
Tighten the front seat–to–floor bolts to 25 NSm (18 lb–
ft).
4. Install the plastic caps.

9H – 8ISEATS
DAEWOO V–121 BL4
REAR SEAT CUSHION
Removal Procedure
1. Remove the rear seat cushion from the floor by lift-
ing it off of the retaining brackets and sliding it for-
ward.
Installation Procedure
1. Install the rear seat cushion by inserting the metal
loops into the rear retaining brackets and pressing
the front of the seat cushion down.
SPLIT REAR SEATBACK
Removal Procedure
1. Lower the rear seatbacks.
2. Remove the bolts, and the seatback from the
hinges.
Installation Procedure
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
1. Install the seatback to the hinges with the bolts.
Tighten
Tighten the rear seatback bolts to 25 NSm (18 lb–ft).
2. Raise and secure the rear seatbacks in the upright
position.

SEATS 9H – 9
DAEWOO V–121 BL4
SPLIT REAR SEATBACK HINGE
Removal Procedure
1. Remove the rear seatback and the rear seat cush-
ion. Refer to ”Split Rear Seatback” and ”Rear Seat
Cushion” in this section.
2. Remove the bolts and the seatback center hinge.
Installation Procedure
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
1. Install the seatback center hinge with the bolts.
Tighten
Tighten the rear seat hinge bolts to 45 NSm (33 lb–ft).
2. Install the rear seatback and the rear seat cushion.
Refer to ”Split Rear Seatback” and ”Rear Seat
Cushion” in this section.
REAR SEAT CENTER ARMREST
Removal Procedure
1. Lower the rear seatbacks.
2. Remove the nuts and the armrest.
Installation Procedure
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
1. Install the armrest with the nuts.
Tighten
Tighten the armrest nuts to 24 NSm (18 lb–ft).
2. Raise and secure the rear seatbacks in the upright
position.

SECTION : 9K
SQUEAKS AND RATTLES
TABLE OF CONTENTS
DIAGNOSIS9K–1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Squeak and Rattle Diagnosis 9K–1. . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR9K–3 . . . . . . . . . . . . . . . ON–VEHICLE SERVICE 9K–3. . . . . . . . . . . . . . . . . . . . .
Squeak and Rattle Repair 9K–3. . . . . . . . . . . . . . . . . . .
DIAGNOSIS
SQUEAK AND RATTLE DIAGNOSIS
Rattle Coming From the Side Rail
ChecksAction
Check the brake lines.S Tap lightly on the brake lines and listen for a rattle.
S Install plastic tie straps to secure the brake lines
tightly together.
Rattle Under Vehicle at Higher RPM
ChecksAction
Check for heat shield contact with the underbody.S Raise the vehicle and perform a visual inspection.
S Bend the heat shield slightly to gain clearance from
the underbody.
Squeak From the Front of the Vehicle in Cold Weather
ChecksAction
Check the front stabilizer shaft insulators.S While the vehicle is cold, perform a test drive and
achieve full front suspension travel by driving through
a dip in the road.
S Remove the insulators and wrap teflon tape around
the stabilizer shaft. Reinstall the insulators over the
tape.
Thump From Rear of Vehicle on Bumps
ChecksAction
Check for a properly secured spare tire in the rear
compartment.S Open the rear compartment and perform a visual
inspection of the spare tire and the tools.
S Tightly secure the spare tire and all tools.
S Perform a road test to verify that the noise is elimi-
nated.

SQUEAKS AND RATTLES 9K – 3
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
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.
S Attach the parts securely so that there is no relative
motion during the operation of the vehicle.
S Separate the parts so that there is no contact dur-
ing operation.
S 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.