Daewoo Nubira. Service manual - part 35

9D – 4

I

WIPERS/WASHER SYSTEMS

DAEWOO V–121 BL4

DIAGNOSIS

WINDSHIELD WIPERS

Windshield Wipers Do Not Work At Any Speed

Step

Action

Value(s)

Yes

No

1

Check fuse F4.
Is fuse F4 blown?

Go to Step 2

Go to Step 3

2

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

sary.

2.  Replace the fuse.

Is the repair complete?

System OK

3

Check the voltage at fuse F4.
Is the voltage equal to the specified value?

11–14 v

Go to Step 5

Go to Step 4

4

Repair the open power supply circuit to fuse F4.
Is the repair complete?

System OK

5

1.  Disconnect the wiper motor connector.
2.  Turn the ignition ON.
3.  Turn the wiper switch to HI.
4.  Check the voltage at the wiper motor connector

terminal 6.

Is the voltage equal to the specified value?

11–14 v

Go to Step 6

Go to Step 7

6

Replace the wiper motor.
Is the repair complete?

System OK

7

1.  The wiper switch is still disconnected.
2.  Turn the ignition ON.
3.  Check for battery voltage at the wiper switch

connector terminal A8.

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 the wiper switch
connector terminal A8 and fuse F4.
Is the repair complete?

System OK

9

1.  The wiper switch is still disconnected.
2.  Turn the wiper switch to HI.
3.  Use an ohmmeter to check for continuity be-

tween wiper switch terminal A8 and A9.

Does the ohmmeter indicate the specified value?

[

 0 

W

Go to Step 11

Go to Step 10

10

Replace the wiper switch.
Is the repair complete?

System OK

11

Repair the open circuit between the wiper switch and
the wiper motor.
Is the repair complete?

System OK

 

WIPERS/WASHER SYSTEMS  9D – 5

DAEWOO V–121 BL4

Wipers Do Not Work On HI Speed, LO Speed OK

Step

Action

Value(s)

Yes

No

1

1.  Turn the ignition ON.
2.  Turn the wiper switch to HI.
3.  Check the voltage at the wiper motor connector

terminal 4.

Is voltage equal to the specified value?

11–14 v

Go to Step 2

Go to Step 3

2

Replace the wiper motor.
Is the repair complete?

System OK

3

1.  Disconnect the wiper switch.
2.  Turn the wiper switch to HI.
3.  Use an ohmmeter to check for continuity be-

tween wiper switch terminal A8 and A9.

Does the ohmmeter indicate the specified value?

[

 0 

W

Go to Step 5

Go to Step 4

4

Replace the wiper switch.
Is the repair complete?

System OK

5

Repair the open circuit between wiper switch con-
nector terminal A9 and wiper motor connector termi-
nal 4.
Is the repair complete?

System OK

 

Wipers Do Not Work On LO Speed, HI Speed OK

Step

Action

Value(s)

Yes

No

1

1.  Turn the ignition ON.
2.  Turn the wiper switch to LO.
3.  Check the voltage at the wiper motor connec-

tor, terminal 3.

Is the voltage equal to the specified value?

11–14 v

Go to Step 2

Go to Step 3

2

Replace the wiper motor.
Is the repair complete?

System OK

3

1.  Disconnect the wiper switch.
2.  Turn wiper switch to LO.
3.  Use an ohmmeter to check for continuity be-

tween wiper switch terminal A8 and A5.

Does the ohmmeter indicate the specified value?

[

 0 

W

Go to Step 5

Go to Step 4

4

Replace the wiper switch.
Is the repair complete?

System OK

5

Repair the open circuit between wiper switch con-
nector terminal A5 and wiper motor connector termi-
nal 3.
Is the repair complete?

System OK

 

9D – 6

I

WIPERS/WASHER SYSTEMS

DAEWOO V–121 BL4

Wipers Do Not Work On Intermittent (INT), Other Speeds OK

Step

Action

Value(s)

Yes

No

1

1.  Turn the ignition ON.
2.  Use a voltmeter to test the voltage at wiper

relay connector terminal 15.

Is voltage equal to the specified value?

11–14 v

Go to Step 3

Go to Step 2

2

Repair the open circuit between the wiper relay con-
nector terminal 15 and fuse F4.
Is the repair complete?

System OK

3

1.  Turn the ignition on.
2.  Turn the wiper switch to INT.
3.  Check the voltage at wiper relay connector ter-

minal I.

Does the voltmeter indicate a voltage equal to the
specified value?

11–14 v

Go to Step 7

Go to Step 4

4

Check for an open circuit between wiper switch con-
nector terminal A7 and wiper relay connector termi-
nal I.
Is there an open circuit?

Go to Step 6

Go to Step 5

5

Replace the wiper switch.
Is the repair complete?

System OK

6

Repair the open circuit between wiper switch con-
nector terminal A7 and wiper relay connector termi-
nal I.
Is the repair complete?

System OK

7

1.  Turn the ignition on.
2.  Turn the wiper switch to INT.
3.  Check for pulsing voltage at wiper switch con-

nector terminal A6.

Does the voltmeter indicate a pulsating voltage
equal to the specified value?

11–14 v

Go to Step 11

Go to Step 8

8

Using an ohmmeter, check the resistance between
ground and the wiper relay connector terminal 31.
Is resistance equal to the specified value?

[

 0 

W

Go to Step 10

Go to Step 9

9

Repair the open ground circuit.
Is the repair complete?

System OK

10

Replace the wiper relay.
Is the repair complete?

System OK

11

1. Ignition ON.
2.  Turn the wiper switch to INT.
3.  Backprobe to check the voltage at the wiper

switch connector terminal A5.

Does the voltmeter indicate a pulsating voltage
equal to the specified value?

11–14 v

Go to Step 12

Go to Step 13

12

Replace the wiper relay.
Is the repair complete?

System OK

13

Repair the open circuit between the wiper switch and
the wiper relay.
Is the repair complete?

System OK

 

WIPERS/WASHER SYSTEMS  9D – 7

DAEWOO V–121 BL4

Windshield Wipers Do Not Return To Park Position

Step

Action

Value(s)

Yes

No

1

1.  Turn the ignition ON.
2.  Check the voltage at the wiper motor connector

terminal 2.

Is the voltage equal to the specified value?

11–14 v

Go to Step 3

Go to Step 2

2

Repair the open circuit between the wiper motor
connector terminal 2 and fuse F4.
Is the repair complete?

System OK

3

1.  Turn the wiper switch to HI.
2.  While turning the wiper switch OFF, check the

voltage at the wiper motor connector terminal
1.

Is the specified voltage indicated when the wiper
switch is turned OFF?

11–14 v

Go to Step 5

Go to Step 4

4

Replace the wiper motor.
Is there an open circuit?

System OK

5

1.  Disconnect the wiper relay.
2.  Check continuity between wiper relay terminal

31b and 53e.

Does the ohmmeter indicate the specified value?

[

 0 

W

Go to Step 6

Go to Step 7

6

Repair the open circuit between the wiper motor and
the wiper relay.
Is the repair complete?

System OK

7

Replace the wiper relay.
Is the repair complete?

System OK