Lamp DAEWOO LACETTI 2004 Service Repair Manual

LIGHTING SYSTEMS 9B – 33
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
11Use an ohmmeter to check the resistance between
ground and the BLK wire at the luggage compart-
ment lamp switch connector (harness side).
Is the resistance equal to the specified value?0WGo to Step 12Go to Step 13
12Replace the luggage compartment lamp switch.
Is the repair complete?–System OK–
13Repair the ground circuit for the interior courtesy
lamp.
Is the repair complete?–System OK–

9B – 34ILIGHTING SYSTEMS
DAEWOO V–121 BL4
FOG LAMPS
Diagnostic Aids
The front fog lamps will not operate unless the illumination lamps or daytime running lamps are on. If the illumination lamps
or daytime running lamps are not operating, repair that problem before attempting to diagnose the fog lamps.
Front Fog Lamps Inoperative
StepActionValue(s)YesNo
1Check fuse Ef24.
Is fuse Ef24 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–
3Use a voltmeter to check fuse Ef24.
Does the battery voltage available at fuse Ef24 equal
the specified value?11–14 vGo to Step 5Go to Step 4
4Repair the open circuit from the battery to fuse Ef24.
Is the repair complete?–System OK–
5Remove the fog lamp relay and temporarily substi-
tute a known good relay, such as the headlamp relay.
(Do not substitute the illumination lamp relay.)
Do the fog lamps work with the substituted relay?–Go to Step 6Go to Step 7
61. Return the substituted relay to its original posi-
tion.
2. Replace the inoperative fog lamp relay.
Is the repair complete?–System OK–
71. Return the substituted relay to its original posi-
tion, but do not reinstall the fog lamp relay.
2. Turn on the exterior lamps and the front fog
lamps.
3. Using a voltmeter, check the fog lamp relay
socket at the connector for fog lamp relay ter-
minal 30.
Does the voltage available at the fog lamp relay
socket equal the specified value?11–14 vGo to Step 9Go to Step 8
8Repair the open circuit between fuse Ef24 and the
fog lamp relay.
Is the repair complete?–System OK–
9At the fog lamp relay socket, use an ohmmeter to
verify that the connector for relay terminal 85 is con-
nected to ground.
Does the resistance equal the specified value?0 WGo to Step 11Go to Step 10
10Repair the ground circuit for the fog lamp relay.
Is the repair complete?–System OK–
111. Reinstall the fog lamp relay.
2. Turn ON the exterior lamps and the front fog
lamps.
3. Test for voltage at terminal 2 of the fog lamp
connector.
Does the battery voltage available at terminal 2 of
the fog lamp connector equal the specified value?11–14 vGo to Step 13Go to Step 12

LIGHTING SYSTEMS 9B – 35
DAEWOO V–121 BL4
StepNo Yes Value(s) Action
12Repair the open circuit between the fog lamp relay
terminal 87 and the fog lamps.
Is the repair complete?–System OK–
13Use an ohmmeter (or test lamp) to check the ground
at terminal 1 of the fog lamp connector.
Does the resistance equal the specified value?0 WGo to Step 15Go to Step 14
14Repair the fog lamp ground circuit.
Is the repair complete?–System OK–
15Replace the faulty fog lamp bulbs.
Is the repair complete?–System OK–

9B – 36ILITHING SYSTEMS
DAEWOO V–121 BL4
MAINTENANCE AND REPAIR
ON–VEHICLE SERVICE
HEADLAMPS/FRONT TURN SIGNAL
LAMPS
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the headlamp mounting bolts and nut.
3. Disconnect the electrical connectors.
4. Remove the turn signal bulb.
5. Remove the headlamp assembly.
6. Remove the cap concealing the headlamp bulb.
7. Disconnect the headlamp bulb electrical connector.
8. Remove the headlamp bulb.
Installation Procedure
1. Install the headlamp bulb.
2. Connect the headlamp bulb electrical connector.
3. Install the cap concealing the headlamp bulb.
4. Install the turn signal bulb.
5. 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.
6. Install the headlamp assembly with the bolts and
nut.
7. Connect the negative battery cable.

LITHING SYSTEMS 9B – 37
DAEWOO V–121 BL4
Tighten
Tighten the headlamp assembly bolts and nut to 4
NSm (35 lb–in).
DAYTIME RUNNING LAMP MODULE
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the instrument panel under cover and the
knee bolster.
3. Remove the bolts and the daytime running lamp
module.
4. Disconnect the electrical connector.
Installation Procedure
1. Connect the electrical connector.
2. Install the daytime running lamp module with the
bolts.
Tighten
Tighten the daytime running lamp module bolts to 2
NSm (18 lb–in).
3. Install the instrument panel under cover and the
knee bolster.
4. Connect the negative battery cable.
PARKING LAMPS
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the headlamp. Refer to ”Headlamps” in
this section.
3. Remove the parking lamp.

9B – 38ILITHING SYSTEMS
DAEWOO V–121 BL4
Installation Procedure
1. Install the parking lamp.
2. Install the headlamp. Refer to ”Headlamps” in this
section.
3. Connect the negative battery cable.
SIDE TURN SIGNAL LAMPS
Removal Procedure
1. Disconnect the negative battery cable.
2. Slide the side turn signal lamp rearward.
3. Remove the lamp.
4. Disconnect the electrical connector.
Installation Procedure
1. Connect the electrical connector.
2. Install the side turn signal lamp.
3. Connect the negative battery cable.
FRONT FOG LAMPS
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the bolts and the front fog lamp.
3. Disconnect the electrical connector.

LITHING SYSTEMS 9B – 39
DAEWOO V–121 BL4
4. Remove the fog lamp access cover.
5. Remove the retaining wire.
6. Remove the bulb.
Installation Procedure
1. Install the bulb.
2. Install the retaining wire.
3. Install the fog lamp access cover.
4. Connect the electrical connector.
Notice : Dissimilar metals in direct contact with each other
may corrode rapidly. Make sure to use the correct fasten-
ers to prevent premature corrosion.
5. Install the front fog lamp with the bolts.
Tighten
Tighten the front fog lamp bolts to 4 NSm (35 lb–in).
6. Connect the negative battery cable.
NOTCHBACK REAR COMBINATION
LAMPS
(Typical)
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the nuts and the lamp assembly.
3. Remove the bulb(s).

9B – 40ILITHING SYSTEMS
DAEWOO V–121 BL4
Installation Procedure
1. Install the bulb(s).
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. Install the lamp assembly with the nuts.
Tighten
Tighten the rear combination lamp assembly nuts to
4 NSm (35 lb–in).
3. Connect the negative battery cable.
HATCHBACK REAR COMBINATION
LAMPS
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the taillamp assembly screws.
3. Side the taillamp assembly foward the hatch open-
ing and remove it.
4. Remove the bulbs.
Installation Procedure
1. Install the bulbs.
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. Install the taillamp assembly with the screws.
Tighten
Tighten the taillamp assembly screws to 3 NSm (27
lb–in).
3. Connect the negative battery cable.
HATCHBACK EXTENSION LAMPS
Removal Procedure
1. Disconnect the negative battery cable.
2. Open the hatchback door.
3. Remove the extension lamp assess cover.
4. Remove the nuts and the extension lamp assembly.
5. Disconnect the electrical connector.

LITHING SYSTEMS 9B – 41
DAEWOO V–121 BL4
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 extension lamp assembly with the nuts.
Tighten
Tighten the extension lamp assembly nuts to 3 NSm
(27 lb–in).
2. Connect the electrical connector.
3. Install the extension lamp access cover.
4. Connect the negative battery cable.
NOTCHBACK CENTER HIGH
MOUNTED STOPLAMP
Removal Procedure
1. Disconnect the negative battery cable.
2. Open the rear deck lid.
3. Remove the bolts and the CHMSL.
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 CHMSL with the bolts.
Tighten
Tighten the CHMSL mounting bolts to 4 NSm (35 lb–
in).
2. Connect the negative battery cable.
HATCHBACK CENTER HIGH
MOUNTED STOPLAMP
Removal Procedure
1. Disconnect the negative battery cable.
2. Pry off the hatchback door upper garnish molding.
3. Remove the bolts and the CHMSL.

9B – 42ILITHING SYSTEMS
DAEWOO V–121 BL4
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 CHMSL with the bolts.
Tighten
Tighten the CHMSL mounting bolts to 4 NSm (35 lb–
in).
2. Connect the negative battery cable.
LICENSE PLATE LAMPS
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the screws.
3. Remove the lamp assembly.
4. Remove the lamp socket from the lamp housing.
5. Remove the bulb.
Installation Procedure
1. Install a new bulb.
2. Install the lamp socket in the lamp housing.
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 lamp assembly with the screws.
4. Connect the negative battery cable.
DOOR JAMB SWITCH
Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the screw and the door jamb switch.
3. Disconnect the electrical connector.