2004 DAEWOO LACETTI ignition

9P – 6IDOORS
DAEWOO V–121 BL4
DIAGNOSIS
POWER WINDOWS
System With Only Front Power Windows, One or Both Windows
are Inoperative
CAUTION : When powering the window motors directly from a battery with jumper wires, make sure one of the
jumper wires contains a fuse. If the jumpers are accidentally touched together, the fuse will prevent sparking
and burns from sudden terminal heating.
Step
ActionValue(s)YesNo
11. Turn the ignition ON.
2. Attempt to operate both power windows.
Is either window working?–Go to
Step 18Go to
Step 2
2Visually inspect the connection at the dual
power window switch.
Is the electrical connector correctly attached
to the switch?–Go to
Step 4Go to
Step 3
3Correctly attach the electrical connector to
the dual power window switch.
Is the repair complete?–System
OK–
41. Disconnect the electrical connector from the
dual power window switch.
2. Turn the ignition ON.
3. Check the voltage at terminal 4 and 5 of the
power window main switch connector.
Is the voltage equal to the specified value?11–14 vGo to
Step 16Go to
Step 5
5Check fuses EF14 and EF9.
Is either fuse blown?–Go to
Step 6Go to
Step 7
61. Check for a short circuit and repair if neces-
sary.
2. Replace the blown fuse(s).
Is the repair complete?–System
OK–
71. Turn the ignition ON.
2. Check the voltages at fuses EF9 and EF14.
Are both voltages equal to the specified val-
ue?11–14 vGo to
Step 9Go to
Step 8
8Repair the power supply to the fuse which did
not indicate battery voltage with the ignition
on.
Is the repair complete?–System
OK–
91. Remove the power window relay.
2. Turn the ignition ON.
3. Check the voltage at terminal 30 and terminal
85 of the power window relay socket. (Termi-
nals of the relay socket can be identified by
the markings on the bottom of the relay.)
Does the voltmeter indicate the specified val-
ue at terminals 30 and 85?11–14 vGo to
Step 11Go to
Step 10
10Repair the open circuit between the fuses and
the power window relay.
Is the repair complete?–System
OK–

DOORS 9P – 9
DAEWOO V–121 BL4
System With Front and Rear Power Windows, One or Both Front
Windows are Inoperative
CAUTION : When powering the window motors directly from a battery with jumper wires, make sure one of the
jumper wires contains a fuse. If the jumpers are accidentally touched together, the fuse will prevent sparking
and burns from sudden terminal heating.
Step
ActionValue(s)YesNo
11. Turn the ignition ON.
2. Attempt to operate each front power window.
Is either window working?–Go to
Step 18Go to
Step 2
2Visually inspect the connection at the power
window main switch.
Is the electrical connector correctly attached
to the main switch?–Go to
Step 4Go to
Step 3
3Correctly attach the electrical connector to
the power window main switch.
Is the repair complete?–System
OK–
41. Disconnect the electrical connector from the
power window main switch.
2. Turn the ignition ON.
3. Check the voltage at terminal 3 and 10 of the
power window main switch connector.
Is the voltage equal to the specified value?11–14 vGo to
Step 16Go to
Step 5
5Check fuses EF14 and EF9.
Is either fuse blown?–Go to
Step 6Go to
Step 7
61. Check for a short circuit and repair, if neces-
sary.
2. Replace the blown fuse(s).
Is the repair complete?–System
OK–
71. Turn the ignition ON.
2. Check the voltages at fuses Ef9 and EF14.
Are both voltages equal to the specified val-
ue?11–14 vGo to
Step 9Go to
Step 8
8Repair the power supply to the fuse which did
not indicate battery voltage with the ignition
on.
Is the repair complete?–System
OK–
91. Remove the power window relay.
2. Turn the ignition ON.
3. Check the voltage at terminal 30 and terminal
86 of the power window relay socket. (Termi-
nals of the relay socket can be identified by
the markings on the bottom of the relay.)
Does the voltmeter indicate the specified val-
ue?11–14 vGo to
Step 11Go to
Step 10
10Repair the open circuit between the fuses and
the power window relay.
Is the repair complete?–System
OK–

9P – 12IDOORS
DAEWOO V–121 BL4
System With Front and Rear Power Windows, One or Both Rear
Windows are Inoperative
CAUTION : When powering the window motors directly from a battery with jumper wires, make sure one of the
jumper wires contains a fuse. If the jumpers are accidentally touched together, the fuse will prevent sparking
and burns from sudden terminal heating.
Step
ActionValue(s)YesNo
11. Turn the ignition ON.
2. Make sure that the window lock position has
not been selected on the power window main
switch.
Is either rear power window working?–Go to
Step 18Go to
Step 2
2Visually inspect the connection at the power
window main switch.
Is the electrical connector correctly attached
to the main switch?–Go to
Step 4Go to
Step 3
3Correctly attach the electrical connector to
the power window main switch.
Is the repair complete?–System
OK–
41. Disconnect the electrical connector from the
power window main switch.
2. Turn the ignition ON.
3. Check the voltage at terminal 3 and 10 of the
power window main switch connector.
Is the voltage equal to the specified value?11–14 vGo to
Step 16Go to
Step 5
5Check fuses EF9 and EF14.
Is either fuse blown?–Go to
Step 6Go to
Step 7
61. Check for a short circuit and repair, if neces-
sary.
2. Replace the blown fuse(s).
Is the repair complete?–System
OK–
71. Turn the ignition ON.
2. Check the voltages at fuses Ef9 and EF14.
Are both voltages equal to the specified val-
ue?11–14 vGo to
Step 9Go to
Step 8
8Repair the power supply to the fuse which did
not indicate battery voltage with the ignition
on.
Is the repair complete?–System
OK–
91. Turn the ignition ON.
2. Remove the power window relay.
3. Check the voltage at terminal 30 and terminal
86 of the power window relay socket. (Termi-
nals of the relay socket can be identified by
the markings on the bottom of the relay.)
Does the voltmeter indicate the specified val-
ue?11–14 vGo to
Step 11Go to
Step 10
10Repair the open circuit between the fuses and
the power window relay.
Is the repair complete?–System
OK–

9P – 14IDOORS
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
181. Remove the trim panel from the rear door
which has an inoperative power window.
2. Move a vehicle battery close enough to the
door so that the window motor can be pow-
ered directly from the battery with jumper
wires.
3. Disconnect the the two–pin window motor
connector in the door.
Important : To prevent the fuse in the jumper wire
from blowing, do not touch the jumper wires togeth-
er.
1. Attach a jumper wire between the negative
battery terminal and one of the terminals in
the two–pin window motor connector.
2. Attach a fused jumper wire between the posi-
tive battery terminal and the remaining termi-
nal in the two–pin power window motor con-
nector. Unless the motor is at the end of its
travel, the power window should move with
the jumpers attached.
3. To move the power window in the opposite
direction, reverse the jumper wire connec-
tions at the power window motor connector.
Does the power window operate in both direc-
tions when the motor is operated directly from
a battery?–Go to
Step 20Go to
Step 19
19Replace the power window motor.
Is the repair complete?–System
OK–
201. Make sure the window lock on the main
switch is off.
2. Turn the ignition ON.
3. At the rear power window switch connector,
check the voltage at terminal 1.
Is the voltage equal to the specified value?11–14vGo to
Step 21Go to
Step 29
211. At the power window motor two–pin connec-
tor, use an ohmmeter to measure the resist-
ance of the power window motor. Record the
resistance.
2. Re–connect the two–pin power window motor
connector.
3. Disconnect the rear power window switch
connector.
4. Use an ohmmeter to measure between termi-
nals 2 and 6 of the rear power window switch
connector.
Is the resistance measured at the rear power
window switch connector equal to the resist-
ance previously measured at the rear power
window motor connector?–Go to
Step 23Go to
Step 22
22Repair the open circuit between the rear pow-
er window switch and the rear power window
motor connector.
Is the repair complete?–System
OK–

DOORS 9P – 15
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
231. Remove the rear power window switch for
testing.
2. Connect an ohmmeter between terminals 4
and 2 of the rear power window switch, and
observe the ohmmeter.
3. Connect the ohmmeter between terminals 11
and 6 of the rear power window switch, and
observe the ohmmeter.
For both tests, did the ohmmeter indicate the
specified value?
0 WGo to
Step 25Go to
Step 24
24Replace the rear power window switch.
Is the repair complete?–System
OK–
251. With the rear power window switch removed
for testing, connect an ohmmeter between
terminals 1 and 2, and put the switch in the
DOWN position. Observe the ohmmeter.
2. Connect the ohmmeter between terminals 1
and 6, and put the switch in the UP position
and observe the ohmmeter.
For both tests, did the ohmmeter indicate the
specified value?
0 WGo to
Step 26Go to
Step 24
261. Reconnect the rear power window switch
connector.
2. Disconnect the electrical connector from the
power window main switch.
3. Use an ohmmeter to measure the resistance
at the power window main switch between
between terminals 8 and 12 if you are testing
the left rear window, or terminals 13 and 14 if
you are testing the right rear window.
Is the resistance equal to the resistance pre-
viously measured at the motor connector?–Go to
Step 28Go to
Step 27
27Repair the open circuit between the power
window main switch and the rear power win-
dow switch.
Is the repair complete?–System
OK–
28Replace the power window main switch.
Is the repair complete?–System
OK–
291. Remove the power window main switch, but
do not disconnect the electrical connector.
2. Make sure the window lock is off.
3. Turn the ignition ON.
4. Check the voltage at terminal 7 of the power
window main switch.
Is the voltage equal to the specified value?11–14 vGo to
Step 27Go to
Step 28

SECTION : 9Q
ROOF
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
SPECIFICATIONS9Q–2 . . . . . . . . . . . . . . . . . . . . . . . . . .
Fastener Tightening Specifications 9Q–2. . . . . . . . . . .
SPECIAL TOOLS9Q–2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special Tools Table 9Q–2. . . . . . . . . . . . . . . . . . . . . . . .
SCHEMATIC AND ROUTING DIAGRAMS9Q–3 . . . . .
Power Sunroof System 9Q–3. . . . . . . . . . . . . . . . . . . . .
DIAGNOSIS9Q–4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Sunroof 9Q–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE AND REPAIR9Q–6 . . . . . . . . . . . . . . .
ON–VEHICLE SERVICE 9Q–6. . . . . . . . . . . . . . . . . . . . .
Power Sunroof 9Q–6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sun Shade 9Q–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sunroof Glass 9Q–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Formed Headliner 9Q–8. . . . . . . . . . . . . . . . . . . . . . . . .
Sun Visors with Vanity Mirror 9Q–10. . . . . . . . . . . . . . .
Passenger Assist Handles 9Q–10. . . . . . . . . . . . . . . . .
Power Sunroof Control Switch 9Q–11. . . . . . . . . . . . . .
GENERAL DESCRIPTION AND SYSTEM
OPERATION9Q–12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof 9Q–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Sunroof/Sunroof Control Switch 9Q–12. . . . . .
Sun Visors with Vanity Mirror 9Q–12. . . . . . . . . . . . . . .
Passenger Assist Handles 9Q–12. . . . . . . . . . . . . . . . .
Coat Hooks 9Q–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9Q – 4IROOF
DAEWOO V–121 BL4
DIAGNOSIS
POWER SUNROOF
Power Sunroof Does Not Work
StepActionValue(s)YesNo
1Check fuse F8.
Is either fuse blown?–Go to Step 2Go to Step 3
21. Check for a short circuit and repair it, if neces-
sary.
2. Replace the blown fuse.
Is the repair complete?–System OK–
31. Turn the ignition on.
2. Check the voltages at fuse F8.
Are both voltages equal to the specified value?11 – 14 vGo to Step 5Go to Step 4
4Repair the power supply to the fuse which did not in-
dicate battery voltage with the ignition on.
Is the repair complete?–System OK–
51. Disconnect the interior courtesy lamp/power
sunroof control switch connector.
2. Turn the ignition on.
3. Check the voltage at terminal 5 of the interior
courtesy lamp/power sunroof control switch
connector.
Is the voltage equal to the specified value?11–14 vGo to Step 7Go to Step 6
6Repair the open circuit between fuse F8 and the inte-
rior courtesy lamp/power sunroof control switch con-
nector.
Is the repair complete?–System OK–
71. Reconnect the interior courtesy lamp/power
sunroof control switch connector.
2. With the sunroof switch in the OPEN position,
check the voltage at terminal 4 of the interior
courtesy lamp/power sunroof control switch
connector.
3. With the sunroof switch in the CLOSE position,
check the voltage at terminal 6 of the interior
courtesy lamp/power sunroof control switch
connector.
Do both voltages equal the specified value?11 – 14 vGo to Step 9Go to Step 8
8Replace the interior courtesy lamp/power sunroof
control switch.
Is the repair complete?–System OK–
91. Disconnect the sunroof module connector.
2. With the sunroof switch in the OPEN position,
check the voltage at terminal 1 of the sunroof
module connector.
3. With the sunroof switch in the CLOSE position,
check the voltage at terminal 6 of the sunroof
module connector.
Are the voltages equal to the specified value?11–14 vGo to Step 11Go to Step 10

ROOF 9Q – 5
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
10Repair the open circuit between the interior courtesy
lamp/power sunroof control switch and the sunroof
module connector.
Is the repair complete?–System OK–
111. Reconnect the sunroof module.
2. Remove the sunroof motor, but leave the con-
nectors attached.
3. Turn the ignition on.
4. Use the sunroof switch to attempt to operate
the motor in both directions.
Does the motor operate?–Go to Step 12Go to Step 13
12Repair the jammed sunroof mechanism.
Is the repair complete?–System OK–
131. Disconnect both of the one–wire connectors at
the sunroof motor.
2. Connect a voltmeter between the one–wire
connectors, on the module side of the connec-
tors.
3. Turn the ignition on.
4. Turn the sunroof switch to the OPEN position
and observe the voltmeter reading.
5. Turn the sunroof switch to the CLOSE position
and observe the voltmeter reading.
Does the voltmeter indicate the specified voltage
when the switch is in either the OPEN or the CLOSE
position (one of the switch positions should show re-
verse polarity)?11–14vGo to Step 15Go to Step 14
14Replace the sunroof module.
Is the repair complete?–System OK–
15Replace the sunroof motor.
Does the sunroof operate with the new motor?–System OKGo to Step 14