Daewoo Nubira. Manual — part 84

9B – 10

I

LIGHTING SYSTEMS

DAEWOO V–121 BL4

FOG LAMPS CIRCUIT

LIGHTING SYSTEMS 9B – 11

DAEWOO V–121 BL4

DIAGNOSIS

HEADLAMPS–ON REMINDER CHIME

Headlamp Reminder Chime Is Inoperative

Step

Action

Value(s)

Yes

No

1

Check the parking lamps.
Do the parking lamps work?

Go to Step 3

Go to Step 2

2

Repair the parking lamps.
Is the repair complete?

Go to Step 3

Go to Step 2

3

Check fuse EF20.
Is fuse EF20 blown?

Go to Step 4

Go to Step 5

4

1. Check for a short circuit and repair it, if neces-

sary.

2. Replace fuse EF20.

Is the repair complete?

System OK

5

1. Turn the parking lamps on.
2. Use a voltmeter to check the voltage at fu-

seEF20.

Is the specified voltage available at fuse EF21?

11–14 v

Go to Step 7

Go to Step 6

6

Repair the open powersupply circuit for fuseEF20.
Is the repair complete?

System OK

7

1. Disconnect the chime module.
2. Turn the parking lamps on.
3. Check the voltage at terminal 6 of the chime

module connector.

Is the voltage equal to the specified value?

11–14 v

Go to Step 9

Go to Step 8

8

Repair the open circuit between fuse EF20 and ter-
minal 6 of the chime module.
Is the repair complete?

System OK

9

With the chime module disconnected, use an ohm-
meter to check the resistance between ground and
terminal 5 of the chime module connector.
Is the resistance equal to the specified value?

[

0

W

Go to Step 11

Go to Step 10

10

Repair the open circuit between ground and terminal
5 of the chime module.
Is the repair complete?

System OK

11

1. Open the driver door.
2. With the chime module disconnected, use an

ohmmeter to check the resistance between
ground and terminal 4 of the chime module
connector.

Is the resistance equal to the specified value?

[

0

W

Go to Step 15

Go to Step 12

12

1. Remove the driver door–open switch.
2. Use an ohmmeter to check the resistance be-

tween terminal 4 of the chime module connec-
tor and terminal 1 of the driver door–open
switch.

Does the ohmmeter show the specified value?

[

0

W

Go to Step 14

Go to Step 13

9B – 12

I

LIGHTING SYSTEMS

DAEWOO V–121 BL4

Step

No

Yes

Value(s)

Action

13

Repair the open wire between the driver door–open
switch and terminal 4 of the chime module connec-
tor.
Is the repair complete?

System OK

14

Replace the driver door–open switch.
Is the repair complete?

System OK

15

Replace the chime module.
Is the repair complete?

System OK

HEADLAMPS

Low–Beam Headlamps Are Inoperative, High–Beam Headlamps

Are OK

Step

Action

Value(s)

Yes

No

1

Check fuses EF31 (left side headlamps) and EF26
(right side headlamps).
Is fuse EF31 or EF26 blown?

Go to Step 2

Go to Step 3

2

1. Check for a short circuit and repair if neces-

sary.

2. Replace the fuse.

Is the repair complete?

System OK

3

Check the voltage at fuses EF31 and EF26.
Are the voltages equal to the specified value?

11–14 v

Go to Step 4

Go to Step 9

4

1. Disconnect both headlamp connectors.
2. Turn the headlamps ON.
3. Select the low beams.

Is the voltage at each headlamp connector terminal
5 equal to the specified value?

11–14 v

Go to Step 6

Go to Step 5

5

Repair the open circuit between fuses EF31 or EF26
and the low beam headlamps.
Is the repair complete?

System OK

6

1. Disconnect the headlamp connectors.
2. Connect an ohmmeter between ground and

either headlamp connector terminal 6.

Is the resistance equal to the value specified?

0

W

Go to Step 8

Go to Step 7

7

Repair the ground circuit.
Is the repair complete?

System OK

8

Replace the faulty headlamps.
Is the repair complete?

System OK

9

1. Disconnect the headlamp combination switch

connector C1.

2. Select the low beams.
3. Use an ohmmeter to check the continuity be-

tween terminals 6 and 5 of the headlamp com-
bination switch.

Does the ohmmeter indicate the value specified?

0

W

Go to Step 10

Go to Step 11

LIGHTING SYSTEMS 9B – 13

DAEWOO V–121 BL4

Step

No

Yes

Value(s)

Action

10

Replace the headlamp combination switch.
Is the repair complete?

System OK

11

Repair the open circuit between fuses EF31 and
EF26 and the headlamp combination switch con-
nector C1 (terminal 5).
Is the repair complete?

System OK

High–Beam Headlamps Are Inoperative, Low–Beam Headlamps

Are OK

Step

Action

Value(s)

Yes

No

1

Check the high–beam headlamps in the ”flash–to–
pass” mode.
Do the high–beam headlamps work in the ”flash–to–
pass” mode?

Go to Step 8

Go to Step 2

2

Check fuses EF30 and EF25.
Is either fuse blown?

Go to Step 3

Go to Step 4

3

1. Check for a short circuit. Repair it if necessary.
2. Replace the fuse.

Is the repair complete?

System OK

4

1. Turn the high–beam headlamps ON.
2. Check the voltage at fuses EF21 and EF22.

Are the voltages equal to the specified value?

11–14 v

Go to Step 5

Go to Step 10

5

1. Turn the high–beam headlamps ON.
2. Check the voltage at headlamp terminal 4.

Does the voltage available at the headlamp connec-
tor terminal 4 equal the value specified?

11–14 v

Go to Step 7

Go to Step 6

6

Repair the open circuit between fuse EF30 or EF25
and the high–beam headlamps.
Is the repair complete?

System OK

7

Replace the faulty headlamps.
Is the repair complete?

System OK

8

1. Disconnect the headlamp combination switch

connector.

2. Put the switch in the high–beam position.
3. Use an ohmmeter to check the continuity of the

headlamp switch between terminals 7 and 4.

Does the ohmmeter indicate the specified value?

0

W

Go to Step 10

Go to Step 9

9

Replace the headlamp combination switch.
Is the repair complete?

System OK

10

Repair the open circuit between headlamp combina-
tion switch connector C1 (terminal 4) and fuse EF30
or EF25.
Is the repair complete?

System OK

High–Beam and Low–Beam Headlamps Are Inoperative On Both

Left and Right Sides