windshield motor DAEWOO NUBIRA 2004 Service Repair Manual

7A – 28IHEATING AND VENTILATION SYSTEM
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
HEATING AND VENTILATION
SYSTEMS
The base heater system is designed to provide heating,
ventilation, windshield defrosting, side window defogging,
and on some vehicles, heating directly to the rear seat
area.
The heater and fan assembly blower regulates the airflow
from the air inlet for further processing and distribution.
The heater core transfers the heat from the engine coolant
to the inlet air.
The temperature door regulates the amount of the air that
passes through the heater core. The temperature door
also controls the temperature of the air by controlling the
mix of the heated air and the ambient air.
The mode door regulates the flow and the distribution of
the processed air to the heater ducts and to the defroster
ducts.
This console–mounted heating and ventilation panel con-
tains the following:
The Rotary Temperature Control Knob
1. The Rotary Temperature Control Knob
S Actuates by cable.
S Raises the temperature of the air entering the
vehicle by rotation toward the right, or the red
portion of the knob.
2. The Rotary Blower Control Knob
S Turns ON to operate the blower motor at four
speeds.
S Turns OFF to stop the blower.
S Operates completely independently both from
the mode control that regulates the defroster
door and from the temperature control knob.S Changes the fan speed in any mode and at any
temperature setting.
3. The Rotary Mode Control Knob
S Actuates by cable.
S Regulates the air distribution between the wind-
shield, the instrument panel, and the floor vents.
Two Push Knobs
1. The Rear Window Defogger Push Knob
S Controls the rear window defogger.
S Turns ON the rear window defogger when the
push knob is pressed and the indicator lamp is
illuminated.
2. The A/C Push Knob (if the vehicle is equipped with
air conditioning)
S Controls the A/C.
S Turns the A/C ON when the push knob is down.
However, if the blower control knob is OFF, the
A/C system is OFF, regardless of the position of
the A/C knob.
Fresh Air Control Level Or Push Knob
1. The Fresh Air Control Level
S Operates by cable.
S Switches between recirculating passenger
compartment air and bringing outside air into the
passenger compartment.
S Draws in outside air when the lever is moved to
the right.
S Recirculates inside air when the lever is moved
to the left.
2. The Fresh Air Control Push Knob
S Operates by cable.
S Switches between recirculating passenger
compartment air and bringing outside air into the
passenger compartment.
S Draws in outside air when knob is off.
S Recirculates inside air when the knob is down
with the indicator lamp illuminated.

7D – 40IAUTOMATIC TEMPERATURE CONTROL HEATING, VENTILATION, AND AIR CONDITIONING SYSTEM
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
GENERAL INFORMATION
THE V5 SYSTEM
Refer to Section 7B, Manual Control Heating, Ventilation,
and Air Conditioning System,for general information de-
tails for the following:
S System Components – Functional.
S The V5 A/C System.
S V5 Compressor – Description of Operation.
S V5 Compressor – General Description.
SYSTEM COMPONENTS–CONTROL
Controller
The operation of the A/C system is controlled by the
switches on the control head. This console–mounted
heating and ventilation system contains the following
knobs and display:
Temperature Control Push Knobs
1. Raise the temperature of the air entering the ve-
hicle by pressing the top switch, with the red arrow
pointing upward.
2. Lower the temperature by pressing the bottom
switch, with the blue arrow pointing downward.
3. Actuate the air mix door by an electric motor.
4. Vary the mix of the air passing through the heater
core with the air bypassing the core.
Each press of a switch changes the set temperature by in-
crements of 0.5°C (1°F). This is shown in the temperature
window on the function display.
The Function Display
This is an LCD display indicating the status of the control
settings selected. Starting from the left end of the display,
the sections are as follows:
1. Temperature setting – Indicates the temperature set
with the temperature control knob.
2. Auto status – Indicates whether the system is oper-
ating in the full auto mode or the manual mode.
3. Defroster icon – Indicates manual selection of full
defrost mode.
4. Mode – Indicated by icon, the mode chosen by the
system in auto (or by the operator in manual) is
shown by an illumination arrow indicating the air
path.
5. A/C – A snowflake icon indicating whether the A/C
is ON or OFF.
6. Fan speed – Indicates the fan speed by illuminating
a bar based on the segment at the front, for low
speed, and adding additional segments in order up
to the fifth, for high speed.Eight Additional Push Knobs
1. Full defrost – Causes the mode motors to direct all
air to the windshield and aide window outlets for
maximum defrosting.
2. Air intake – Switches between fresh air intake, the
default, and recirculating air. Airflow arrows on the
display indicate the mode in effect.
3. Full Auto Switch – Maintains the set temperature
automatically. In this mode, the fully automatic tem-
perature control (FATC) system controls the follow-
ing:
S The air mix door motor.
S The mode door motor.
S The blower motor speed.
S The inlet air door motor.
S A/C ON/OFF.
4. OFF Switch – Turns the automatic air conditioning
and fan control off.
5. Mode Switch – Allows manual selection of the air-
flow direction.
S Selection is shown on the function display.
S Each time the mode switch is pressed, the next
function is displayed.
6. A/C Switch – Allows manual selection and control
of the air conditioning function.
7. Fan Control Switch – Allows manual selection
among five fan speeds.
8. Defogger Switch – Turns on the electric defogging
heater in the rear window and the outside rearview
mirrors, if the vehicle is equipped with heated mir-
rors.
Pressure Transducer
Pressure transducer switching incorporates the functions
of the high–pressure and the low–pressure cutout
switches along with the fan cycling switch. The pressure
transducer is located in the high–side liquid refrigerant line
behind the right strut tower, between the right strut tower
and the fire wall. The output from this pressure transducer
goes to the electronic control module (ECM), which con-
trols the compressor function based on the pressure sig-
nal.
Wide–Open Throttle (WOT) Compressor
Cutoff
During full–throttle acceleration, the throttle position sen-
sor (TPS) sends a signal to the ECM, which then controls
the compressor clutch.
High RPM Cutoff
As engine rpm approaches the maximum limit, the ECM
will disengage the compressor clutch until the engine
slows to a lower rpm.

SECTION : 9D
WIPERS/WASHER 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 LOCK unless otherwise noted.
TABLE OF CONTENTS
SPECIFICATIONS9D–1 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 9D–1. . . . . . . . . . .
SCHEMATIC AND ROUTING DIAGRAMS9D–2 . . . . .
Wipers and Washer System 9D–2. . . . . . . . . . . . . . . . .
Wipers and Washer System 9D–3. . . . . . . . . . . . . . . . .
Wipers and Washer System (HatchBack) 9D–4. . . . .
Wipers and Washer System (HatchBack) 9D–5. . . . .
DIAGNOSIS9D–6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wipers 9D–6. . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Washer System 9D–10. . . . . . . . . . . . . . . .
Rear Window Wiper (Hatchback) 9D–11. . . . . . . . . . .
Rear Window Washer System (Hatchback) 9D–13. . .
MAINTENANCE AND REPAIR9D–14 . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 9D–14. . . . . . . . . . . . . . . . . . . .
Windshield Wiper Arm 9D–14. . . . . . . . . . . . . . . . . . . . . Windshield Wiper Motor 9D–14. . . . . . . . . . . . . . . . . . .
Windshield Wiper Blade 9D–15. . . . . . . . . . . . . . . . . . .
Windshield Wiper Blade Insert 9D–16. . . . . . . . . . . . . .
Windshield Washer Reservoir 9D–16. . . . . . . . . . . . . .
Windshield Washer Pump(s) 9D–17. . . . . . . . . . . . . . .
Windshield Washer Nozzles 9D–18. . . . . . . . . . . . . . . .
Windshield Washer Hoses 9D–18. . . . . . . . . . . . . . . . .
Rear Window Wiper Arm (HATCHBACK) 9D–19. . . .
Rear Window Wiper Motor (HATCHBACK) 9D–20. . .
Rear Window Washer Nozzle (HATCHBACK) 9D–20
GENERAL DESCRIPTION AND SYSTEM
OPERATION9D–22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Windshield Wiper System 9D–22. . . . . . . . . . . . . . . . . .
Windshield Washer System 9D–22. . . . . . . . . . . . . . . .
Rear Window Wiper/Washer System 9D–22. . . . . . . .
SPECIFICATIONS
FASTENER TIGHTENING SPECIFICATIONS
ApplicationNSmLb–FtLb–In
Front Wheel Well Splash Shield Bolts1.5–13
Washer Fluid Reservoir Bolts8–71
Wiper Arm Linkage Nut5–44
Wiper Arm Nut2216–
Wiper Motor Bolts8–71
Rear Wiper Arm Nut11–97

9D – 6IWIPERS/WASHER SYSTEMS
DAEWOO V–121 BL4
DIAGNOSIS
WINDSHIELD WIPERS
Windshield Wipers Do Not Work At Any Speed
StepActionValue(s)YesNo
1Check fuse F9.
Is fuse F9 blown?–Go to Step 2Go to Step 3
21. Check for a short circuit and repair it, if neces-
sary.
2. Replace the fuse.
Is the repair complete?–System OK–
3Check the voltage at fuse F9.
Is the voltage equal to the specified value?11–14 vGo to Step 5Go to Step 4
4Repair the open power supply circuit to fuse F9.
Is the repair complete?–System OK–
51. Disconnect the wiper motor connector.
2. Turn the ignition ON.
3. Turn the wiper switch to HI.
4. Check the voltage at the wiper motor connector
terminal 5.
Is the voltage equal to the specified value?11–14 vGo to Step 6Go to Step 7
6Replace the wiper motor.
Is the repair complete?–System OK–
71. The wiper switch is still disconnected.
2. Turn the ignition ON.
3. Check for battery voltage at the wiper switch
connector terminal A8.
Is the voltage equal to the specified value?11–14 vGo to Step 9Go to Step 8
8Repair the open circuit between the wiper switch
connector terminal A8 and fuse F9.
Is the repair complete?–System OK–
91. The wiper switch is still disconnected.
2. Turn the wiper switch to HI.
3. Use an ohmmeter to check for continuity be-
tween wiper switch terminal A8 and A9.
Does the ohmmeter indicate the specified value?
0 WGo to Step 11Go to Step 10
10Replace the wiper switch.
Is the repair complete?–System OK–
11Repair the open circuit between the wiper switch and
the wiper motor.
Is the repair complete?–System OK–

WIPERS/WASHER SYSTEMS 9D – 9
DAEWOO V–121 BL4
Windshield Wipers Do Not Return To Park Position
StepActionValue(s)YesNo
11. Turn the ignition ON.
2. Check the voltage at the wiper motor connector
terminal 8.
Is the voltage equal to the specified value?11–14 vGo to Step 3Go to Step 2
2Repair the open circuit between the wiper motor
connector terminal 8 and fuse F9.
Is the repair complete?–System OK–
3Replace the wiper motor.
Is the repair complete?–System OK–

9D – 14IWIPERS/WASHER SYSTEMS
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
WINDSHIELD WIPER ARM
(Left–Hand Drive Shown, Right–Hand Drive
Similar)
Removal Procedure
1. Open the hood.
2. Remove the cap to reveal the wiper arm nut, if nec-
essary.
3. Remove the nut from the wiper arm.
4. Pull the wiper arm off.
Installation Procedure
1. Install the wiper arm.
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
2. Secure the wiper arm with the nut.
Tighten
Tighten the wiper arm nut to 22 NSm (16 lb–ft).
3. Install the wiper arm nut cap, if necessary.
4. Close the hood.
WINDSHIELD WIPER MOTOR
(Left–Hand Drive Shown, Right–Hand Drive
Similar)
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the left–side portion of the cowl vent grille.
Refer to Section 9R, Body Front End.
3. Remove the nut and the washer that secure the
wiper arm linkage to the motor drive shaft.

WIPERS/WASHER SYSTEMS 9D – 15
DAEWOO V–121 BL4
4. Pry the wiper arm linkage off the motor drive shaft.
5. Remove the nuts.
6. Disconnect the electrical connector.
7. Remove the bolts and the wiper motor.
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 wiper motor with the bolts.
Tighten
Tighten the wiper motor bolts to 8 NSm (71 lb–in).
2. Connect the electrical connector.
3. Press the wiper arm linkage onto the motor drive
shaft.
4. Install the wiper arm linkage to the motor drive shaft
with the washer and the nut.
Tighten
Tighten the wiper arm linkage nut to 5 NSm (44 lb–in).
5. Install the left side portion of the cowl vent grille.
Refer to Section 9R, Body Front End.
6. Connect the negative battery cable.
WINDSHIELD WIPER BLADE
(Typical)
Removal Procedure
1. Rotate the wiper blade on the arm.
2. While pressing the retainer clip, slide the wiper
blade down the wiper arm and remove the blade.

9D – 22IWIPERS/WASHER SYSTEMS
DAEWOO V–121 BL4
GENERAL DESCRIPTION
AND SYSTEM OPERATION
WINDSHIELD WIPER SYSTEM
The windshield wiper system consists of a wiper motor, a
linkage, a wiper arm and a blade, and a wiper/washer
switch. The windshield wiper circuit incorporates a self–
parking device which consists of a worm gear and a cam
plate in order to keep the circuit engaged temporarily when
the switch is turned off. The wiper system is driven by a
permanent magnet–type motor. The windshield wiper mo-
tor is mounted on the dash panel and is directly connected
to the windshield wiper linkage.
The windshield wiper motor has two speeds, LO and HI,
and also has intermittent wiper capability. The wiper
switch is an integral part of the wiper/washer switch. Wind-
shield wiper operation is actuated through the lever on the
right side of the steering column.
WINDSHIELD WASHER SYSTEM
The windshield washer system is equipped with a washerfluid reservoir, a washer fluid pump, hoses, nozzles, and
a wiper/washer switch. The windshield washer reservoir
is mounted behind the front left wheel well splash shield.
Attached to the reservoir is a washer pump, which pumps
fluid through the hoses to the two nozzles mounted on the
hood. The washer switch is an integral part of the wiper/
washer switch. Windshield washer operation is actuated
through the lever on the right side of the steering column.
REAR WINDOW WIPER/WASHER
SYSTEM
The rear window wiper system consists of a wiper motor,
a wiper arm, and a blade. The rear window wiper motor is
located inside the hatchback/tailgate door and is directly
connected to the rear window wiper. The rear window
washer system is equipped with a separate washer fluid
pump and hose. The hatchback has a hatch–mounted
rear window washer nozzle and on the wagon, the washer
nozzle is incorporated into the rear wiper motor. The rear
window washer reservoir is mounted behind the front left
wheel well splash shield. Attached to the reservoir is a
washer pump, which pumps fluid through a hose to the
rear washer nozzle.