Great Wall service chassis and body Manual - part 79

BE-45

Body Electric System

 Wiping and Washing System

Inspection on Common Trouble

Trouble

Possible causes

Repairing approaches

Make reparation as required;

Check the washer motor;

Check the brusher switch;

Make reparation as required.

Washer has no action

The washer hose or nozzle is blocked;

Failure of washer motor;

Failure of washer switch;

Wiring failure.

Failure of motor switch;
Check the brusher switch;
Make reparation as required.

Brusher has no action at the
intermissive gear

Failure of brusher switch;
Wiper or grounding failure;
Check the wiping motor.

Failure of brusher motor;
Brusher or grounding failure;
Check the brusher motor;

Make reparation as required.

Burn out of brusher fuse;
Failure of brusher switch;
Change the fuse and check whether there
is short circuit;
Check the brusher switch.

Brusher cannot move or cannot
return to the stop position

BE-46

Body Electric System

 Wiping and Washing System

Parts inspection

Brusher switch conductance situation

pi=ph=pv=pg

1

2

3

4

5

6

7

8

9

10 11 12

Terminal

switch position

MIST

OFF

INT

LO

HI

Washing

1

2

P

4

5

6

7

W/B

Gr/R

Gr/Br Gr/Bl

Gr/G

Gr

dêL_ê

a ê

pc

1

2

3

4

5

S

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

Terminal

switch position

OFF

INT

LO

HI

Washing

6

14

13

21

20

Gr

Gr/G

Gr/Br

Gr/Bl

Gr/B

1

2

P

4

5

6

7

8

9

10

11

NO

13

14

15

16

17

18

19

20

21

Terminal

switch position

OFF

INT

LO

HI

Washing

6

14

13

21

20

Gr/R

Gr/G

Gr/Br

Gr/Bl

Gr/B

BE-47

Body Electric System

 Wiping and Washing System

Brusher switch conductance situation (continued)

In case the conductance situation fails to satisfy the requirements in the above-mentioned drawing, change the switch.

Conductance Situation of Rear Brusher

Where the conductance fails to satisfy the requirements in the above-mentioned drawing, change the switch.

SY SJ

1

2

3

4

5

6

7

8

Terminal

switch position

OFF

ON

1

8

7

6

5

R/Y

B

G/W

Bl/Y

B/Y

SYDiesel

1

2

3

4

5

6

7

8

Terminal

switch position

OFF

ON

1

8

7

6

R

R/Y

B

G/R

Bl/Y

B/Y

SLDiesel SYDiesel

1

2

3

4

5

6

7

8

9

10 11 12

Terminal

switch position

MIST

OFF

INT

LO

HI

Washing

1

2

3

4

5

6

7

Bl/B

Lg/R

Lg/W

Bl/Y

Bl

Bl/O

Lg/W

BE-48

Body Electric System

 Wiping and Washing System

In low-speed operation
Check the front brusher motor
Connect the anode lead to the terminal 2 (1) from accumulator, and

the cathode lead to terminal 3, at this time, the front wiper motor

should be in low-speed operation, otherwise change the front

brusher motor.

In high-speed operation
 Connect the anode lead to the terminal 1(2) from the accumulator,

and cathode lead to terminal 3, in such condition, the front wiper

motor should be in high-speed operation.

In case the operation fails to meet the requirement, change the front

wiper motor.

in operation

stop running at the stop position

a.

Run the front wiper motor at low speed and stop it at any

positions excluding the stop position by disconnect the

anode lead from the terminal 2 (1).

b.

Connect the terminals 2 and 5.\

c.

Connect the anode lead to the terminal 6 (4) from the

accumulator, and the cathode lead to terminal 3, check

whether the wiper motor parks at the stop position after

it running for another time, if the requirement is not

satisfied, change the front brusher motor.

Remark: items in parenthesis is for Dr and SF.

Rear brusher motor inspection

Connect the anode lead to the terminal 3 from the accumulator, and

the cathode lead to terminal 4, at this time, the wiper motor will be

in normal operation, disconnect the terminal 3, the rear wiper motor

should stop running at any position excluding the stop position.

1

2

3

4

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6

1

2

3

4

5

6