Page 2257 of 2643

LIGHTING SYSTEMS 9B – 31
DAEWOO V–121 BL4
INTERIOR COURTESY AND LUGGAGE COMPARTMENT
LAMPS
Interior Courtesy Lamp Inoperative
CAUTION : Always make sure there is an electrical
load (lamp bulb, etc.) in any circuit between battery
terminals. Do not make a short circuit between bat-
tery terminals with a jumper wire. Hazardous spark-
ing would result and could cause injury.
Test Description
The number(s) below refer to step(s) on the diagnostictable.
1. Bulb test. Clip one end of a jumper wire to the neg-
ative battery terminal. Clip the other end of the
jumper wire onto one end of the bulb. Take the free
end of the bulb (the end without the jumper at-
tached) and touch it to the positive battery terminal.
Step
ActionValue(s)YesNo
11. Remove the interior courtesy lamp bulb and
inspect the filament.
2. If the filament is not broken, test the bulb using
the vehicle’s battery and a jumper wire.
Does the bulb pass the visual and physical checks?–Go to Step 3Go to Step 2
2Replace the bulb.
Is the repair complete?–System OK–
31. Reinstall the interior courtesy lamp bulb.
2. Check fuse Ef19.
Is fuse Ef19 blown?–Go to Step 4Go to Step 5
41. Check for a short circuit and repair it, if neces-
sary.
2. Replace the fuse.
Is the repair complete?–System OK–
5Check fuse Ef19.
Does the voltage at fuse Ef19 equal the specified
value?11–14 vGo to Step 7Go to Step 6
6Repair the open power supply circuit for fuse Ef19.
Is the repair complete?–System OK–
71. Disconnect the interior courtesy lamp electrical
connector.
2. Check the voltage at connector terminal 1.
Does the voltage at connector terminal 1 equal the
value specified?11–14 vGo to Step 8Go to Step 9
8Repair the open circuit between fuse Ef19 and the
interior courtesy lamp terminal 1.
Is the repair complete?–System OK–
91. With the interior courtesy lamp disconnected,
turn it to the on position.
2. Use an ohmmeter to check the resistance be-
tween ground and terminal 2 of the interior
courtesy lamp connector (harness side).
Is the resistance equal to the specified value?0WGo to Step 10Go to Step 11
10Replace the interior courtesy lamp switch assembly.
Is the repair complete?–System OK–
11Repair the ground circuit for the interior courtesy
lamp.
Is the repair complete?–System OK–
Page 2258 of 2643

9B – 32ILIGHTING SYSTEMS
DAEWOO V–121 BL4
Luggage Compartment Lamp Inoperative
CAUTION : Always make sure there is an electrical
load (lamp bulb, etc.) in any circuit between battery
terminals. Do not make a short circuit between bat-
tery terminals with a jumper wire. Hazardous spark-
ing would result and could cause injury.
Test Description
The number(s) below refer to step(s) on the diagnostictable.
1. Bulb test. Clip one end of a jumper wire to the neg-
ative battery terminal. Clip the other end of the
jumper wire onto one end of the bulb. Take the free
end of the bulb (the end without the jumper at-
tached) and touch it to the positive battery terminal.
Step
ActionValue(s)YesNo
11. Remove the luggage compartment lamp bulb
and inspect the filament.
2. If the filament is not broken, test the bulb using
the vehicle’s battery and a jumper wire.
Does the bulb pass the visual and physical check?–Go to Step 3Go to Step 2
2Replace the bulb.
Is the repair complete?–System OK–
31. Reinstall the luggage compartment lamp bulb.
2. Check fuse Ef19.
Is fuse Ef19 blown?–Go to Step 4Go to Step 5
41. Check for a short circuit and repair it, if neces-
sary.
2. Replace the fuse.
Is the repair complete?–System OK–
5Check fuse Ef19.
Does the voltage at fuse Ef19 equal the specified
value?11–14 vGo to Step 7Go to Step 6
6Repair the open power supply circuit for fuse Ef19.
Is the repair complete?–System OK–
71. Disconnect the luggage compartment lamp
electrical connector.
2. Check the voltage at the orange wire.
Does the voltage at the ORN wire equal the specified
value?11–14 vGo to Step 8Go to Step 9
8Repair the open circuit between fuse Ef19 and the
luggage compartment lamp.
Is the repair complete?–System OK–
91. Reconnect the luggage compartment lamp.
2. Remove the luggage compartment lamp
switch.
3. With a voltmeter (or test lamp), test the PNK/
BLK wire at the luggage compartment lamp
switch.
Does the voltage at the luggage compartment lamp
switch equal the specified value?11–14 vGo to Step 11Go toStep 10
10Repair the open circuit between the luggage
compartment lamp and the luggage compartment
lamp switch.
Is the repair complete?–System OK–
Page 2259 of 2643
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–
Page 2260 of 2643

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
Page 2261 of 2643
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–
Page 2262 of 2643
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.
Page 2263 of 2643
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.
Page 2264 of 2643
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.