Isuzu N-Series. Manual - part 1057

CAB AND CHASSIS ELECTRICAL 8-333

Circuit Diagram

For 12 Volt - Except 4JH1

X-12

X-12

X-12

X-12

B-14

B-14

B-39

B-39

B-39

B-17

B-17

B-15

B-15

X-10

X-10

X-10

X-10

J-6

J-6

H-5

B-42

B-13

B-13

B-13

B-42

B-42

B-42

B-42

H-6

B-15

J-57

J-58

B-1

B-7

J-9

2

2

1

5

4

1

5

24

2

4

3

1

2

3

31

2

3

6

5

4

2

4

B-13

1

2

3

2

1

1

1

1

30B/R

8B

2L

8W

0.5W/R

3L

0.5BR

0.5B

2L/B

0.5BR

1.25LG/B

0.5LG

1.25L

0.85G/W

0.85G/W

0.85G/O

0.85G/O

0.5G/O

0.5G/Y

0.5G/Y

2L/B

2L/B

1.25L/O

0.85L/Y

0.5L/W

B-42

1

0.5P/G

2L

0.5B

2B

2B

3B

3B

5B

1.25B

8W/B

3W/B

P-1

P-2

P-5

FRAME

FL-1  100A

RELAY;

HEATER & A/C

RELAY; CHARGE (5)

FL-25

30A

F-1   10A

BLOWER

MOTOR

DIODE

PRESSURE

SWITCH

4

1

3

2

OFF

FAN SWITCH

BLOWER RESISTOR

ELECTRONIC THERMOSTAT

A/C SWITCH

MAGNETIC CLUTCH

(COMPRESSOR)

RELAY;

A/C THERMO

HEADLIGHT BRACKET (LH)

FRAME-LH (FRONT)

MAIN

AIR CON

HEATER

FRAME-LH (CENTER)

E-5

1

0.85G/O

VSV FICD

2

4JB1 / 4HG1 ENGINE ONLY

N8A0518E

8-334 CAB AND CHASSIS ELECTRICAL

For 12 Volt - 4JH1 Engine

X-12

X-12

X-12

X-12

B-14

B-14

B-39

B-39

B-39

B-17

B-17

B-15

B-15

X-10

X-10

X-10

X-10

B-42

B-13

B-13

B-13

B-42

B-42

B-42

B-42

H-6

B-15

B-1

B-7

J-9

2

2

1

5

4

1

5

24

2

1

1

2

3

31

2

3

6

5

4

2

4

B-13

1

2

3

2

1

30B/R

8B

2L

8W/B

0.5W/R

3L

0.85BR

0.5B

2L/B

0.85BR

1.25LG/B

0.5LG

1.25L

0.85G/W

0.5G/Y

0.5G/Y

2L/B

2L/B

1.25L/O

0.85L/Y

0.5L/W

B-42

1

0.5P/G

2L

2B

0.85B

0.5B

2B

5B

3B

2B

8W/B

3W/B

P-1

P-2

P-5

FRAME

FL-1  100A

RELAY;

HEATER & A/C

RELAY; CHARGE (5)

FL-25

30A

F-1   10A

BLOWER

MOTOR

DIODE

4

1

3

2

OFF

FAN SWITCH

BLOWER RESISTOR

ELECTRONIC THERMOSTAT

A/C SWITCH

RELAY;

A/C THERMO

HEADLIGHT BRACKET (LH)

FRAME-LH (FRONT)

MAIN

AIR CON

HEATER

FRAME-LH (CENTER)

J-6

J-6

H-14

E-5

H-5

2

1

1

12

0.85G/W

0.85G/O

0.85G/Y

0.5W/G

0.5G/Y

PRESSURE

SWITCH

A/C ON

SIGNAL RESISTOR

MAGNETIC

CLUTCH

(COMPRESSOR)

ECM

0.85G/Y

0.5G/O

0.5L/R

0.5W/G

0.5G/Y

0.5G/Y

0.5B

B-339

1

2

B-339

X-26

X-26

X-26

X-26

1

2

53

X-24

X-24

X-24

X-24

1

2

53

B-234

B-234

33

41

H-8

H-8

16

15

RELAY;

GLOW (4)

RELAY;

A/C SIGNAL

RELAY;

A/C COMPRESSOR

P-3

P-4

N8A0514E

CAB AND CHASSIS ELECTRICAL 8-335

For 12 Volt - 4JH1 Engine For Taiwan

X-12

X-12

X-12

X-12

B-14

B-14

B-39

B-39

B-39

B-17

B-17

B-15

B-15

X-10

X-10

X-10

X-10

J-6

J-6

H-14

E-5

H-5

B-13

B-13

B-42

B-13

B-13

B-13

B-42

B-42

B-42

B-42

H-6

B-15

B-1

B-7

J-9

21

2

5

4

1

5

24

2

2

1

1

2

3

31

2

3

6

5

4

2

1

3

6

4

1

2

2

1

1

1

12

30B/R

8B

2L

8W/B

0.85W/R

3L

0.85BR

0.5B

2L/B

0.85BR

1.25LG/B

0.5LG

1.25L

0.85G/W

0.85G/W

0.85G/O

0.85G/Y

2B

0.5G/Y

0.5G/Y

2L/R

1.25L/O

0.85L/Y

0.5L/W

0.5P/G

2L

2B

2B

0.85B

0.5B

5B

3B

2B

5W

3W

FL-1  100A

RELAY;

HEATER & A/C

RELAY; CHARGE (5)

F-25   30A

F-1   10A

BLOWER

MOTOR

DIODE

PRESSURE

SWITCH

4

1

3

2

OFF

FAN SWITCH

A/C ON

SIGNAL RESISTOR

BLOWER RESISTOR

ELECTRONIC THERMOSTAT

A/C SWITCH

MAGNETIC

CLUTCH

(COMPRESSOR)

ECM

RELAY;

A/C THERMO

HEADLIGHT

BRACKET (LH)

FRAME-LH (FRONT)

MAIN

AIR CON

HEATER

FRAME-LH (CENTER)

0.85G/Y

0.5W/G

0.5G/O

0.5W/G

0.5G/Y

0.5G/Y

0.5G/Y

0.5B

B-42

B-339

1

2

B-339

X-26

X-26

X-26

X-26

1

2

53

X-24

X-24

X-24

X-24

1

2

53

B-234

B-234

33

41

H-8

H-8

16

15

RELAY;

GLOW (4)

RELAY;

A/C SIGNAL

RELAY;

A/C COMPRESSOR

P-1

P-2

P-5

FRAME

P-3

P-4

N8A0517E

8-336 CAB AND CHASSIS ELECTRICAL

For 24 Volt - Except 4HK1 Engine

J-6

J-6

B-13

B-13

B-13

B-42

B-42

B-42

B-42

B-42

B-7

B-1

J-9

B-39

B-39

B-39

B-15

B-15

B-15

X-10

X-10

X-10

X-10

H-5

B-17

B-17

H-6

B-14

B-14

B-13

OFF

X-12

X-12

X-12

X-12

J-41

J-41

E-5

P-5

P-4

P-3

P-2

P-1

2

1

2

5

4

1

2

1

2

3

3

4

1

2

5

4

1

4

2

3

3

6

5

4

2

31

2

21

2

9

H-14

J-23

2

3

J-23

J-23

4

1

2

1

30B/R

8B

8W/B

2L

8W/B

3W/B

5W/B

0.5W/R

3L

0.85L

0.85BR

0.85BR

0.85L/B

0.5B

0.85B

2B

B-42

1

0.5G/Y

0.5G/Y

0.5G/Y

0.5LG

0.5LG

0.5P/G

0.85G/W

0.85G/W

0.85G/O

0.5G/O

0.85G/O

0.85BR

3B

5B

FRAME

FL-1  100A or 120A

F-1   15A

RELAY; 

A/C THERMO 

VSV

FICD

MAGNETIC 

CLUTCH

ELECTRONIC

THERMOSTAT

4

3

2

1

FAN SWITCH

BLOWER RESISTOR

A/C SWITCH

RELAY;

HEATER & A/C

RELAY; CHARGE (5)

FRAME-LH (FRONT)

HEADLIGHT BRACKET (LH)

PRESSURE

SWITCH

0.5LG/B

MAIN

AIR CON, HEATER

BLOWER MOTOR

DIODE

FRAME-LH (CENTER)

0.85G/O

0.5B

2B

0.85L/B

0.5L/O

0.5L/Y

0.5L/W

0.85B

DIODE

ECM

(WITHOUT 4HE1 ENGINE)

(4HE1 ENGINE ONLY)

N8A0515E