SANY Crawler Hydraulic Excavator SY365H-9, SY365BH-9. Shop Manual (2014) - page 23

7-11

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

Connector No.

Type

Num-

ber of 

pins

Component

Stereo-

gram

CN-303M

H

8

Work lamp switch

R-6

CN-305M

H

8

Washer switch

R-6

CN-304M

H

8

Wiper switch

R-6

CN-104M

A

2

Horn switch

R-6

CN-003F

S

12

Air conditioner

W-4

CN-150F

AMP

2

Front pump solenoid valve

I-7

CN-151F

AMP

2

Rear pump solenoid valve

I-7

CN-135F

AMP

2

Boom priority 2 solenoid valve

J-6

CN-134F

AMP

2

Bucket con

fl

 uence solenoid valve

J-6

CN-132F

AMP

2

Boom priority 1 solenoid valve

J-6

CN-136F

AMP

2

Pilot solenoid valve

J-6

CN-131F

AMP

2

High/low travel speed valve

J-6

CN-133F

AMP

2

Swing priority valve

J-6

CN-211M

AMP

2

Washer motor

K-5

F-300

Terminal

1

Coolant temp sensor

K-7

F-101

W

1

Right horn

I-6

F-100

W

1

Left horn

I-6

CN-140M

AMP

35

Controller

W-6

CN-141M

AMP

35

Controller

W-6

CN-800F

S

2

Alternator terminal  L/R

K-7

F-103

S

3

Safety relay

X-6

CN-7-707

AMP

2

Cigar lighter

P-4

CN-150M

D

8

Intermediate connector

AE-3

CN-215F

HL

7

Radio

W-6

PF021

_

_

Fuse box

X-4

CN-1-001

AMP

2

Left speaker

AD-7

CN-1-002

AMP

2

Right speaker

AE-6

CN-1-003

AMP

2

Right head lamp

AB-5

CN-1-004

AMP

2

Left head lamp

AB-5

CN-1-005

AMP

2

Cab lamp

AE-7

7-12

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

Connector No.

Description

S

SWP type, Yazaki

A/AMP

AMP, Japan

D

DT type, made in Japan

H

Hebi

HL

Hulane

L

Ling Xing

DF

Delphi, U.S.

W

AMP, Japan

Terminal Round

7-13

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

7.3.1  Connector location layout

F

E

D

C

B

A

8

7

6

5

1

3

2

4

CN-104M

CN-102M

CN-101M

Z

CN-105M

ZX305-1005001

Fig. 7-1 

7-14

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

ZX305-1105041

T-104

T-118

T-103

T-500

F-101

T-112

T-109

T-135

CN-155M

CN-800F

CN-182P

CN-211M

T-117

T-102

T-101

T-106

T-105

Z

CN-111F

CN-113F

CN-120M

CN-121M

CN-122M

CN-123M

CN-124M

CN-125M

CN-126M

CN-128M

CN-129M

CN-115M

F-100

CN-136F

CN-135F

CN-134F

CN-133F

CN-132F

CN-131F

F-300

T-107

T-111

T-110

CN-116M

KB

CN-113M

Fig. 7-2 

7-15

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

ZX305-1105042

F-505

F-504

F-503

F-502

CN-502F

CN-307M

CN-305M

CN-304M

CN-303M

CN-104M

F-501

CN-142M

CN-7-707

9

8

7

6

5

1

3

2

4

T

S

R

Q

P

O

N

F-506

F-507

F-508

F-509

CN-302M

Fig. 7-3 

7-16

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

CN-503F

F-103

CN-506F

CN-180M

T-202

CN-215F

CN-003F

CN-201F

PF021

KH

CN-181M

K9

K7

K3

K4

K2

K6

CN-502F

CN-504M

CN-1-112F

CN-1-111M

ZX305-1105043

CN-616M

CN-507M

CN-505F

Z

Y

X

W

V

U

T

CN-615M

K5

Fig. 7-4 

7-17

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

ZX305-1105042

F-505

F-504

F-503

F-502

CN-502F

CN-307M

CN-305M

CN-304M

CN-303M

CN-104M

F-501

CN-142M

CN-7-707

9

8

7

6

5

1

3

2

4

T

S

R

Q

P

O

N

F-506

F-507

F-508

F-509

CN-302M

Fig. 7-5 

7-18

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

7.3.2  Diagram of system electrical elements

C

D

B

E

F

A

1

3

2

4

5

6

7

8

9

ZX305-1105035

0

105

66

64
63
65

28

66

14

90

90

14

66

28

65

63

64

38

22

22

00A

60

00A

37

37

CN-506F

(S-16)

14

13

13
14

3

2

1

7
8

10

9

11

12

1
2

3

12

11

9
10

8

7

14

100

20

20

90

21

21

21

21

21

13

20

21

20

20

PF021

F9

27

F8

38

F7

26

F6

F5

25

24 F4

F3

23

F2

F1

14

22

F13

F14

21

21

20

70 F12

F11

F10

29

28

F15

2

1

1
2

1

2

3 4 5

5

4

3

2

1

610

33

24

35H

37

36

60

14

25

35L

35L

50A

62

69

61
22

13

00A

70

72

72

70

00A

50A

13

22

61

69

2

4

3

5

6

9

8

7

1

10

11

11

10

1

00#

00#

00A

1
2

4

3

5

6

8

7

7

8

00#

29

22

00A

00A

00#

T-501

T-500

T-116

T-102

T-135

F-506

F-507

T-120

T-104

T-102

T-101

CN-508F

(H-8)

CN-505F

(H-8)

CN-507F

(H-8)

CN-503F

(H-8)

T-101

25

70

23

24

0#

21

26

1
2

3

3

2

1

506

14

60

T-107

F-508

F-509

70

14

60

57

57

22

57

00#

CN-501F
(A-3)

25

14
60

36

37

61

69

14

69

72

72

36

33

37

25

33

25

36

37

24

66

65

6563

64

63

64

0

62

1

2

3 4 5

5

4

3

2

1

P2

P1

A

B

E

60

14

14
60

21

21

E

12

E

12

2

2

CN-505F

CN-504M

2

-

-

+

+

21

20

15

0

KB

1

2

3 4 5

5

4

3

2

1

11

61

13

22 62

C

R2

BR ACC

B

HEAT

ON

OFF

TERMINAL

R1

START

21

0

60

35H

0

27

105

1

2

3 4 5

5

4

3

2

1

61a

60a

CN-205M

(A-2)

24

00A

57

62

6

5

3
4

2

1

CN-502M

(D-12)

6
5

5

6

CN-506M

(D-8)

CN-203M

(D-12)

7

8

9

6

5

3

4

2

33

CN-204F

(D-12)

9

8

7

1

2

4

3

5

6

7
8

9

6

5

3
4

2

1

CN-7-706M

(S-2)

2

1

1
2

S

CAN-

CAN+

CN-7-112F

(D-3)

3

2

1

CN-7-707F

(A-2)

2

1

22

CN-7-113M

(D-12)

12

11

9

10

8

7

29

1

2

4

3

5

6

7

8

10

9

11

12

6

5

3

4

2

1

1

2 3 45

5

4

3

2

1

11

0

0

00#

00#

20b

20b

5A

10A

20A

5A

10A

5A

15A

5A

10A

20A

20A

5A

5A

20A

10A

11b

11a

60a

61a

60a

61a

50A

F-103

F-105

F-105

F-104

35L

35H

35H

35L

11b

11a

61a

60a

CN-112M

11C

CN-7-705M

29

22

CAN-

-

CAN+

24V

24V

CAN-

CAN+

1

2

3

4

5

6

7

8

9

10

11

12

Servce lamp

Refuel

GND

GND

Cigar 
lighter

Charging indicator

Fuel control dial

Head lamp 
switch

Wiper 
switch

Washer 
switch

Work lamp 
switch

Parking relay

Parking 
motor

Alternator

Start
motor

Chassis
ground

Chassis
ground

Chassis
ground

Start protection relay

Battery relay

Start 
switch

Low-temp
switch

Safety
relay

Lockout relay

Start relay

Pilot switch

Preheat indicator

Compressor clutch

To controller circuit

Sunlight sensor

Fig. 7-6 

7-19

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

●

This circuit diagram has been compiled by extracting the wiper system and the switch control
systems from the general electrical circuit diagram.

1

1

F-103
(W-1)

F-104
(W-1)

CN-1-110M

(D-6)

CN-101M

(A-2)

CN-506M
(D-16)

35H

35L

36

25

M

5

4

3

1

32

1

2

1

1

2

1

1

2

2

1

CN-104M

(A-2)

1

2

2

1

CN-105M

(A-2)

6

16

16

6

34

8

7

6

5

4

3

1

71

2

3

4

5

2

0

1

1

3

4
5
6
7
8

26

1

2

2

1

0

26

0

0

1

3
4
5
6
7

2

R+

2

2

R-

L+

L-
0#

CN-107M

4

8

7

6

5

1

0#

38

38

20b

0#

20b

L-

L+

R-

R+

61a

60a

57

CN-207F

CN-150M

(S-8)

0

57

2

1

CN-109M

26

0

34

0

34

0

34

1

2

2

1

M

37

0

CN-112M

(A-2)

1

2

2

1

0

77

77

0

1

2

2

1

1

2

3 4 5

5

4

3

2

1

K6

K5

1

2

3 4 5

5

4

3

2

1

K2

1

2

3 4 5

5

4

3

2

1

KH

1

2

3 4 5

5

4

3

2

1

3

1

6

2

5

MT+

MT-

507

CN-124F
(S-6)

6

5

3

2

1

AC-2000

5

2

6

1

3

37

33

36

35H

35L

72
69
61

57

507

MT-

MT+

66

14

26

21

33

0#

70

23

24

0

31

0

14

24

72

70

71

23

0 23 32

34

32

34

71

0

71

0

0

37

1

2

3

6

5

4

66

31

61

0 69

14

68

17

21

16

16

CN-181M
(D-6)

25

T-107

T-105

T-106

61a

60a

50A

00A

00A

50A

20b

38

6

6

CN-506F
(S-16)

K

I

L

J

H

G

ZX225-1105036

1

2

3

5

4

6

9

8

7

Preheat 
controller

Horn relay

Work lamp relay

Head lamp relay

Preheater relay

Horn switch

Throttle 
motor

Preheater

Wiper

Washer motor

Head lamp (R)

Head lamp (L)

Horn

Revolving frame
work lamp

Left boom
work lamp

Right boom
work lamp

Radio speaker (R)

Radio speaker (L)

Cab lamp

To A/C control panel

To radio control panel

 

Fig. 7-7 

7-20

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

7.3.3  Diagram of electrical control system 

D

9

8

7

6

5

4

2

3

1

A

F

C

B

E

G

ZX335-1105037

(D-16)

CN-502F

(AMP-2)

CN-152M

1
2

5

11
13

15

19

30
31

34
38
48

49
50

51
52

53
54
55
56
58
60
65
67
68
69

70
71
72
73
74
75
77
78

80

(AMP-81)

CN-616M

120
121

119

115

114

113

105

101

100

99

98

89

88

84

83

82

(AMP-40)

CN-615M

T-103

T-104

T-102

T-101

-

-

+

+

21

20

13

0

KB

1

2 3 45

5

4

3

2

1

13

22

C

R2

BRACC

B

HEAT

ON

OFF

TERMINAL

R1

START

42

200
204
207
202

508

(D-3)

CN-112M

A B C

B

A

(D-3)

CN-115M

120

Ω

00

4

13

13

4

108B
510
511

108A

511

0

1
2

240

Ω

CAN-
CAN+

CAN-

CAN+

11C
201
208
205
206
203
501

50
50

50

00

00

50

T-500

T-107

27

0

00#
42
509

502
00
00
50

607

42

608
604

603

602

00#
00#
42

610
611
702
703

201

208

203

202

200

204

602

205

207
206

703

702

608

607

604

603

511

510

508

502

509

501

108B

108A

42

27

L. travel pilot pressure

R. travel pilot pressure

Swing pilot pressure

Bkt-dump pilot pressure

Bkt-dig pilot pressure

Boom-down pilot pressure

Boom-up pilot pressure

Arm-in pilot pressure

Arm-out pilot pressure

Rear pump main pressure

Front pump main pressure

Battery relay

GND

Battery

To monitor circuit

Fig. 7-8 

7-21

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

●

This circuit diagram has been compiled by extracting the pressure collecting system and the
solenoid valve control systems from the general electrical circuit diagram.

K

I

1

2

3

5

4

6

9

8

7

M

J

H

L

CN-120M

(DF-3)

A

B
C

A

B
C

50

00

200

CN-205F

(A-2)

1

2

1
2

602

0

T-116

1

2

3

4

5

5

4

3

2

1

1

2

1
2

CN-136F
(AMP-2)

CN-132F
(AMP-2)

108A

108B

501

509

502

508

510

511

603
604
607
608
702
703

206

207

205

602

204

200

202

203

208

201

0

27

50

00

201

00

50

C

B

A

C

B

A

CN-121M

(DF-3)

CN-122M

(DF-3)

A

B
C

A

B
C

50

00

202

203

00

50

C

B

A

C

B

A

CN-129M

(DF-3)

204

00

50

C

B

A

C

B

A

CN-128M

(DF-3)

CN-123M

(DF-3)

A
B
C

A

B
C

50

00

208

CN-125M

(DF-3)

A

B
C

A

B
C

50

00

207

CN-126M

(DF-3)

A
B
C

A

B
C

50

00

206

205

00

50

C

B

A

C

B

A

CN-124M

(DF-3)

CN-115M

(DF-3)

A

B
C

A

B
C

50

00

501

A

B
C

A

B
C

50

00

502

CN-116M

(DF-3)

CN-133F
(AMP-2)

0

608

2

1

2

1

1

2

1
2

607

0

CN-131F
(AMP-2)

1

2

1
2

604

0

CN-134F
(AMP-2)

1

2

1
2

603

0

CN-135F
(AMP-2)

1

2

1
2

702

0

CN-111F
(AMP-2)

1

2

1
2

703

0

CN-113F
(AMP-2)

508

T-109

CN-101M

509

510

42

CN-113M
(AMP-2)

42

511

2

1

2

1

1

2

CN-125F

(S-2)

108A

108B

ZX225-1105038

L. travel pilot
pressure sensor

R. travel pilot
pressure sensor

Arm-out pilot
pressure sensor

Arm-in pilot
pressure sensor

Bucket-dump pilot
pressure sensor

Bucket-dig pilot
pressure sensor

Front pump
pressure sensor

Rear pump
pressure sensor

Swing pilot
pressure sensor

Boom-down pilot
pressure sensor

Boom-up pilot
pressure sensor

Boom priority-1
-prptnl valve

Boom priority-2
-prptnl valve

Bkt confluence
-prptnl valve

Swing priority
prptnl valve

Front pump
prptnl valve

Rear pump
prptnl valve

Engine oil
prsur switch

High speed
travel valve

Fuel level

Coolant temp
sensor

Hyd oil temp
sensor

Engine speed
sensor

Pilot valve

Pilot valve relay

Pilot switch

Fig. 7-9 

7-22

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

7.3.4 SWP connectors

7222-7414-40

7123-7414-40   

7222-1424-40

7123-1424-40     

7222-7464-40

7123-7464-40      

7222-7484-40

7123-7484-40     

7222-7564-40

7123-7564-40      

W365-130707

Male (plug)

Female (socket)

(1 pin)

(2 pins)

(6 pins)

(8 pins)

(16 pins)

Fig. 7-10 

7-23

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

7.3.5 A/AMP connectors

：

28210

Part No.

Part No.

4-1

：

282080-1  

282105-1

282087-1          

174354-2

174352-2  

1473252-1

1473255-1   

1473244-1

1473247-1 

W365-130709

Male (plug)

Female (socket)

(2 pins)

(3 pins)

(40 pins)

(81 pins)

(2 pins)

Fig. 7-11 

7-24

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

7.3.6 DT connectors

W365-130710

DT06-2S

DT04-2P

A

B

A

B

DT06-3S

DT04-3P  

      

DT06-6S

DT04-6P

     

   

DT06-8S

DT04-8P  

    

DT06-12S

DT04-12P 

   

B

A

C

1

2

3

6

5

4

8

5

1

4

12

7

1

6

A

B

C

1

2

3

6

5

4

8

5

4

1

7

12

6

1

Housing (plug)

Housing (socket)

(3 pins)

(6 pins)

(8 pins)

(12 pins)

Fig. 7-12 

7-25

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

Information contained in troubleshooting table ............................................................. 7-26
E015 Power voltage abnormal ..................................................................................... 7-27
E212 Irregular throttle motor current or defective motor connection ............................ 7-28
E240 Hydraulic oil temperature abnormal .................................................................... 7-29
E320 Front pump output pressure abnormal ................................................................ 7-30
E321 Rear pump output pressure abnormal ................................................................ 7-31
E322 Bucket-dig pilot pressure abnormal..................................................................... 7-32
E323 Bucket-dump pilot pressure abnormal ................................................................ 7-33
E324 Arm-in pilot pressure abnormal ........................................................................... 7-34
E325 Arm-out pilot pressure abnormal ......................................................................... 7-35
E326 Boom-up pilot pressure abnormal ....................................................................... 7-36
E327 Boom-down pilot pressure abnormal .................................................................. 7-37
E328 Left travel pilot pressure abnormal ...................................................................... 7-38
E329 Right travel pilot pressure abnormal ................................................................... 7-39
E330 Swing pilot pressure abnormal ............................................................................ 7-40
E332 Motor built-in potentiometer irregular .................................................................. 7-41
E434 Front pump proportional solenoid current abnormal (A) ..................................... 7-42
E435 Rear pump proportional solenoid current abnormal (A) ...................................... 7-43
E436 Front pump proportional solenoid current abnormal (B) ..................................... 7-44
E437 Rear pump proportional solenoid current abnormal (B) ...................................... 7-45
E543 Engine speed abnormal ...................................................................................... 7-46
E244 Fuel control dial setting voltage abnormal .......................................................... 7-47
E145 CAN bus abnormal .............................................................................................. 7-48

7.4  Troubleshooting with an Event Code

7-26

Troubleshooting

SY365(B)H-9 Crawler Hydraulic Excavator

Information contained in troubleshooting table

Failure code

Service Code

Failure symp-

tom

Title of failure shown in failure history

Code displayed

——

Failure information

Failure is described on the monitor display. 

Controller reaction

When failure is detected, the controller has taken action to protect the affected 
system or equipment. 

Machine reaction

Symptom that is shown on the machine due to action of controller. 

Possible causes and standard values

Cause

Standard values and troubleshooting references

1

Possible causes 
of trouble (Given 
numbers are ref-
erence numbers, 
which do not in-
dicate priority)

<Inclusion>

• Standard value under normal condition can be used to judge pos-

sible causes

• Reference for passing the above "Good" or "No Good" judgement

<Symptom of Wiring Harness Failure>

• Open circuit

Faulty contact with connector or open circuit in wiring harness

• Faulty grounding

An ungrounded wiring is grounded.

• Short circuit

A wiring has mistaken contact with a 24 V electric circuit.

2

3

4

5

Related circuit diagram

This is part of the circuit diagram which shows the portion where the failure occurred.

●

Connector No.: A connector number Indicates a connector.

●

Arrow: An arrow roughly indicates the installing location.