Isuzu N-Series. Service manual - part 1161

8-356 CAB AND CHASSIS ELECTRICAL

Circuit Diagram

Except 4JH1 Engine

2L

B-7

H-25

H-3

B-59

B-59

N-8

N-8

1

J-52

B-1

J-9

H-6

X-8

H-5

P-1

P-2

P-3

P-4

P-5

2

X-8

1

2

X-8

X-8

4

5

6

J-52

2

N-8

H-25

3

2

H-3

5

2

B-59

4

1

2

FRAME

30B/R

8

B

FL-1 100A or 120A

MAIN

8W (12V)

5W

RELAY; CHARGE(5)

0.85W/R

RELAY; EXHAUST
BRAKE

3B/R

F-2

15A

EXH. BRAKE,
FUEL HEATER

F-3 15A

REAR HEATER

0.5B/R

0.5B/R

0.5B

FUEL HEATER

0.5B/R

REAR HEATER

0.5B

0.85L/R

0.5L/R

0.5L/W

0

.85L/W

H I

LO

OFF

REAR HEATER 
SW

3B

5B

0.5B

2B

HEADLIGHT BRACKET (LH)

FRAME-LH(FRONT)

FRAME-LH (CENER)

(24 V MODEL)

0.85L/R

0.85L/W

0.85B/R

1

2

3

5W (24V)

8W/B (12V)
5W/B (24V)

H-25

H-3

0.5B/R

1

6

2B

3B

3W/B

0.5W/R

N8A5435E

CAB AND CHASSIS ELECTRICAL 8-357

4JH1 Engine

2L

B-7

H-25

H-3

B-59

B-59

N-8

N-8

1

J-52

B-1

J-9

H-6

X-13

H-5

P-1

P-2

P-5

2

X-13

1

2

X-13

X-13

4

5

6

J-52

2

N-8

H-25

3

2

H-3

5

2

B-59

4

1

2

FRAME

30B/R

8

B

FL-1  100A
MAIN

8W

5W

8W/B

3W/B

RELAY; CHARGE(5)

0.85W/R

RELAY; HEATER

2B/R

F-2 15A

FUEL HEATER

F-3 15A

REAR HEATER

0.5B/R

0.5B/R

0.3B

FUEL HEATER

0.5B/R

REAR HEATER

0.5B

0.85L/R

0.5L/R

0.5L/W

0

.85L/W

H I

LO

OFF

REAR HEATER 
SW

3B

5B

0.5B

2B

0.85L/R

0.85L/W

0.85B/R

1

2

3

0.5W/R

H-25

H-3

0.5B/R

1

6

2B

3B

P-3

P-4

HEADLIGHT BRACKET (LH)

FRAME-LH(FRONT)

FRAME-LH (CENTER)

N8A0396E

8-358 CAB AND CHASSIS ELECTRICAL

Connector List

No.

Connector Face

X-13

X-8

B-59

H-3

H-3

H-25

H-25

J-52

005-006

005-006

004-015

1

2

3

4

006-014

1

2

3

4

5

6

006-015

1

2

3

4

5

6

003-020

2 3

1

003-021

1

3

2

002-033

1

2

J-52

N-8

N-8

P-1

(12 V)

P-2

P-1

(24 V)

P-4

P-2

(24 V)

No.

Connector Face

002-034

2

1

003-022

1

2

3

003-023

2

3

1

000-003

000-004

000-004

000-004

000-006

CAB AND CHASSIS ELECTRICAL 8-359

H-5

H-6

Fuel Heater

P-3

P-5

(12 V)

P-5

(24 V)

No.

Connector Face

000-006

000-007

000-002

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

N8A0371E