Daewoo NUBIRA, User Manual

Page: 325 / 685

LIGHTING SYSTEMS 9B – 15
DAEWOO V–121 BL4
Step No Yes Value(s) Action
14 Replace the engine fuse block.
Is the repair complete? System OK
15 With the headlamp relay removed, use a voltmeter
to check the headlamp relay connector terminal 85.
Does the voltmeter indicate the value specified? 11–14 v Go to Step 16 Go to Step 14
16
1. With the headlamp relay removed, turn the
headlamps to low–beam.
2. Use an ohmmeter to check the continuity be-
tween connector relay terminal 86 and ground.
Does the ohmmeter indicate the specified value?
[
0
W
Go to Step 22 Go to Step 17
17
1. Reinstall the headlamp relay.
2. Check the voltage at the headlamp switch con-
nector C2 (terminal 2).
Does the voltage equal the specified value?
11–14 v Go to Step 19 Go to Step 18
18 Repair the open circuit between headlamp relay ter-
minal 85 and the headlamp switch connector C2 ter-
minal 2.
Is the repair complete? System OK
19
1. Disconnect the headlamp switch connector C2.
2. Turn the low–beam headlamps ON.
3. Use an ohmmeter to check the continuity be-
tween terminals 2 and 3 of headlamp combina-
tion switch C2.
Does the ohmmeter indicate the specified value?
[
0
W
Go to Step 21 Go to Step 20
20 Replace the headlamp switch.
Is the repair complete? System OK
21 Repair the open circuit between terminal 3 of head-
lamp switch connector C2 and ground.
Is the repair complete? System OK
22 Check the voltage at headlamp switch connector
C1, (terminal 6).
Does the voltage equal the specified value? 11–14 v Go to Step 24 Go to Step 23
23 Repair the open circuit between headlamp switch
connector C1 and terminal 87 of the headlamp relay.
Is the repair complete? System OK
24
1. Disconnect headlamp switch connector C1.
2. Turn the headlamps to the low–beam position.
3. Connect an ohmmeter between terminals 5
and 6 of headlamp switch connector C1.
4. Turn the high–beam headlamps ON.
5. Connect an ohmmeter between terminals 4
and 6 of the headlamp switch.
Does the ohmmeter show the specified value for
both of the tests?
[
0
W
Go to Step 25 Go to Step 20
25 Repair the open circuit between the headlamp
switch and fuses EF30, EF25, EF31, and EF26.
Is the repair complete? System OK
Diagnostic Aids
The daytime running lamp (DRL) system will not work if the parking brake is applied. The system is designed to work only
when the engine is running and the parking brake is released. If the parking brake circuit is shorted to ground or the switch
stays closed when the engine is running, the DRL system will not work.