Isuzu N-Series. Manual - part 1070

CAB AND CHASSIS ELECTRICAL 8-385

J-234

J-235

J-236

J-237

L-2

L-2

P-1

P-2

No.

Connector Face

002-003

1

2

002-003

1

2

002-042

004-020

003-009

1 2 3

003-010

3 2 1

000-004

000-006

P-3

P-4

P-5

P-6

X-5, 

14, 18, 

26

X-19, 

21

X-32

X-33

No.

Connector Face

000-006

000-004

000-002

000-002

005-006

005-003

1

2

3

5

4

004-004

1

2

3

4

014-002

1 2 3

7 8 9 10

11

4

12

5

13

6

14

8-386 CAB AND CHASSIS ELECTRICAL

H-5

H-6, H-7, H-8

Electronic Control Type PTO

General Description

This circuit consists of starter switch, PTO switch (for
dump vehicle, it shares with dump control switch), relay,
diodes, solenoid and control unit.
Electronic control type PTO is installed on the left side of
transmission. 
PTO's gears are engaged at any time. There is a sleeve
installed on the output shift, and the sleeve is shifted by
the solenoid through the shift rods(s) and shift arm(s).
This causes turning the power on or off.

N-2

N-7

N-17

N-18

N-19

No.

Connector Face

001-020

001-020

008-005

1

2

3

4

5

6

7

8

006-007

1 2 3
4 5 6

010-003

10

9

8

7

6

5

4

3

2

1

1

2

3

7

8

9

13

14 15

19

20 21

25

26 27

31

32 33

34

35

36

37

4

5

6

10

11 12

16

17 18

22

23 24

28

29 30

38

39 40

6

5

4

12

11 10

18

17 16

24

23 22

30

29 28

40

39 38

3

2

1

9

8

7

15

14 13

21

20 19

27

26 25

33

32 31

34

35

36

37

N8A5488E

1

2

1

2

1 2 3 4

5 6 7 8

9 10 11 12 13

14 15 16 17 18

2

1

2

1

4 3 2 1

8 7 6 5

13 12 11 10 9

18 17 16 15 14

H - 6

H - 7

H - 8

N8A5489E

CAB AND CHASSIS ELECTRICAL 8-387

Parts Location

B-67  STARTER SW

B-84  PTO SW

P-1

J-123, J-124  PTO CONTROL UNIT

J-125  PTO SOLENOID

J-126  PTO SOLENOID SW

P-2

P-3

P-4

J-9

B-51

PTO INDICATOR LAMP (METER)

RELAY BOX ASM

FL-1, FL-2

FUSIBLE LINK

BATTERY

P-5

RELAY BOX ASM (No.1)

X-12  HEATER & A/C RELAY

X-32, X-34  DIODE

FUSE

BOX ASM

F-16 FUSE

RELAY BOX ASM (No.2)

F-29~F-31 FUSE

X-14 PTO MAIN RELAY

X-15 PTO SOLENOID RELAY

X-16 PTO CUT RELAY

B-7

B-274

H6~H8

B-89  CLUTCH SW

N8A0526E

8-388 CAB AND CHASSIS ELECTRICAL

Circuit Diagram

40A

KEY

P-1

P-2

P-3

P-4

P-5

FRAME

H-7

1

B-67

2

2

FL-2

10A

PTO

F-31

100A/120A

MAIN

CHARGE

RELAY

HEATER
& A/C
RELAY

FL-1

B

ST

ACC

ON

STARTER SW

DIODE

PTO CUT

RELAY

CLUTCH
SWITCH

DIODE

PTO SOL
M/T RELAY

PTO
SWITCH

B-67

B-67

3

4

X-34

1

X-16

3

X-34

2

X-16

5

3.0W/L

3.0L

3.0
W/B

3.0
B/Y

3.0
B/Y

0.5
B/Y

0.5W/B

3.0B/Y

0.5

B/W

0.5
L/R

0.5
R/Y

0.3
W

0.3
W

0.3
B

0.5
Y

0.5Y

0.5Y

0.3
B

0.85
P

0.85
Y

0.85
B

0.85W/G

0.85
B

0.5B

0.5
V/W

0.5

R/Y

1.25

W/L

0.85

G/O

0.5
L

10A

PTO

F-30

10A

METER

F-16

20A

PTO

F-29

X-16

1

X-16

2

X-16

4

X-12

1

X-12

2

X-12

5

X-12

4

X-15

5

X-15

2

X-15

3

X-15

1

B-89

1

B-89

4

H-8

2

B-51

5

J-126

1

J-126

2

B-51

8

H-6

2

X-14

0.85L

3.0B/Y

2

X-32

1

X-32

X-34

3

3

X-14

DIODE

PTO MAIN

RELAY

PTO SOL.
SWITCH

METER
PTO

3

X-32

4

X-32

B-84

4

B-84

B-7

1

J-9

B-274

H-8

1

J-123

2

J-124

5

1

X-14

5

X-14

J-123

1

J-125

3

J-125

2

J-124

4

J-124

3

J-125

1

FRAME

FRAME

H/L BRACKET

PTO SOL.

CONT UNIT

PTO

2.0

L

0.5
B

N8A0516E