Isuzu N-Series. Manual - part 1120

8-192 CAB AND CHASSIS ELECTRICAL

Parts Location

N8A5195E

CAB AND CHASSIS ELECTRICAL 8-193

Circuit Diagram

For 12 Volt

OFF

ON

ACC

ST

B

RH

LH

IG

RH

LH

B

TB

FU

B-70

B-70

B-70

B-16

H-6

H-7

B-67

B-67

B-55

B-55

B-74

B-74

R-6

R-1

R-6

R-1

H-16

H-16

H-5

H-5

B-5

B-5

B-55

B-55

H-20

B-30

B-30

B-30

R-1

R-1

H-16

R-6

R-6

H-16

B-66

B-66

H-5

J-9

B-7

B-1

P-1

P-2

P-5

12

2

3

3

1

2

82

6

1

5

4

3

7

12

13

5

17

8

10

1

2

2

11

7

1

1

8

7

3

3

6

6

7

11

1

2

2

2

6

2

6

FRAME

MAIN

STARTER SWITCH

FLASHER 

UNIT

RELAY; TAIL (5)

3W/L

5W

0.5G

3B/Y

0.5Y/R

0.5BR

0.5LG/R

TURN SIGNAL LIGHT SWITCH

(COMBINATION SWITCH)

0.5G/B

0.5G/W

0.5G/W

0.5G/B

0.5B

F-19 15A
HORN, HAZARD

F-11  10A

TURN LIGHT

F-5

10A

STOP LIGHT

F-4

15A

AUDIO

STOPLIGHT SWITCH

0.5G

0.5G

0.5G

1.25B

2B

STOPLIGHT (RH)

(For DUMP VEHICLE)

TURN SIGNAL

INDICATOR LIGHT (RH) (METER)

0.5G/Y

0.5LG/B

(Except DUMP VEHICLE)

FRAME-LH

(FRONT)

HEADLIGHT 

BRACKET

(LH)

0.5BR

B-16

B-16

B-30

B-30

B-30

B-30

B-30

HAZARD 

WARNING 

SWITCH

3W/B

5W

FL-1

100A

KEY SW

FL-2 

50A

J-65

J-65

J-62

J-62

2

6

2

6

0.5G

1.25B

2B

8W

TURN SIGNAL LIGHT 

(FRONT COMBINATION LIGHT-RH)

0.5B

(NKR DUMP VEHICLE)

STOPLIGHT (LH)

STOPLIGHT (RH)

STOPLIGHT (LH)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-RH)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-LH)

TURN SIGNAL LIGHT

(FRONT COMBINATION LIGHT-LH)

TURN SIGNAL INDICATOR LIGHT (LH) (METER)

0.5G/B

0.5G/W

1.25B

0.5G

0.85B

0.85B

1.25B

1.25B

0.85B

0.85B

3B

FRAME-LH (CENTER)

2L

P-3

P-4

4JH1

SIDE TURN SIGNAL LIGHT (RH)

(DOOR)

SIDE TURN SIGNAL LIGHT (LH)

(DOOR)

(NPR/NQR W/CAB EC ONLY)

(NPR/NQR W/CAB

EC ONLY)

1

H-20

2

H-22

1

H-22

5

8W/B

SIDE TURN SIGNAL LIGHT (LH)

(S/CAB)

P/SOURCE

(SERVICE)

SIDE TURN SIGNAL LIGHT (RH)

(S/CAB)

0.5W

0.5L

0.85R

0.5G/W

0.5G/B

0.5B

0.5B

(S/CAB EC TURKEY ONLY)

J-62

J-65

J-62

J-65

3

3

6

6

(NKR DUMP VEHICLE)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-RH)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-LH)

0.5G/W

0.5G/B

2B

1.25B

N8A5602E

8-194 CAB AND CHASSIS ELECTRICAL

For 24 Volt

OFF

ON

ACC

ST

B

RH

LH

IG

RH

LH

B

TB

FU

B-70

B-70

B-70

B-16

H-6

H-7

B-67

B-67

B-55

B-55

B-74

B-74

R-6

R-1

R-6

R-1

H-16

H-16

H-5

H-5

B-5

B-5

B-55

B-55

H-20

B-30

B-30

B-30

R-1

R-1

H-16

R-6

51

2

34

6

R-6

H-16

B-66

B-66

H-5

J-9

B-7

B-1

P-1

P-2

P-3

P-4

P-5

12

2

3

3

1

82

6

1

5

4

3

7

12

13

5

17

8

10

1

2

2

11

7

1

1

8

7

3

3

6

6

7

11

1

2

2

2

6

2

6

FRAME

MAIN

STARTER SWITCH

FLASHER 

UNIT

RELAY; TAIL (5)

3W/L

5W

0.5G

3B/Y

0.5Y/R

0.5BR

0.5LG/R

TURN SIGNAL LIGHT SWITCH

(COMBINATION SWITCH)

0.5G/B

0.5G/W

0.85B

0.5G/W

0.5G/B

0.5B

F-20 15A
HORN, HAZARD

F-11  10A

TURN LIGHT

5W/B

F-5

10A

STOP LIGHT

F-4

15A

AUDIO

STOPLIGHT SWITCH

0.5G

0.5G

0.5G

1.25B

2B

STOPLIGHT (RH)

(For DUMP VEHICLE)

TURN SIGNAL

INDICATOR LIGHT (RH) (METER)

0.5G/Y

0.5LG/B

(Except DUMP VEHICLE)

FRAME-LH

(FRONT)

HEADLIGHT 

BRACKET

(LH)

0.5BR

B-16

B-16

B-30

B-30

B-30

B-30

B-30

HAZARD 

WARNING 

SWITCH

3W/B

5W

FL-1

100A or 120A

KEY SW

FL-2 

40A

J-65

J-65

J-62

J-62

2

6

2

6

0.5G

1.25B

2B

5W

TURN SIGNAL LIGHT 

(FRONT COMBINATION LIGHT-RH)

5

0.5B

(NKR DUMP VEHICLE)

STOPLIGHT (LH)

STOPLIGHT (RH)

STOPLIGHT (LH)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-RH)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-LH)

TURN SIGNAL LIGHT

(FRONT COMBINATION LIGHT-LH)

TURN SIGNAL INDICATOR LIGHT (LH) (METER)

0.5G/B

0.5G/W

0.5G

0.85B

0.85B

1.25B

1.25B

0.85B

0.85B

3B

FRAME-LH (CENTER)

2L

SIDE TURN SIGNAL LIGHT (RH)

(DOOR)

SIDE TURN SIGNAL LIGHT (LH)

(DOOR)

(NPR/NQR W/CAB EC ONLY)

(NPR/NQR W/CAB

EC ONLY)

1

H-20

2

H-22

1

H-22

5

RELAY SIDE TURN

(S/CAB)

SIDE TURN

SIGNAL LIGHT (LH)

(S/CAB)

P/SOURCE

(SERVICE)

SIDE TURN

SIGNAL LIGHT (RH)

(S/CAB)

0.5W

0.5L

0.85R

0.5B

0.5G/W

0.85R

0.5G/B

0.5B

0.5B

(S/CAB EC TURKEY ONLY)

J-62

J-65

J-62

J-65

3

3

6

6

(NKR DUMP VEHICLE)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-RH)

TURN SIGNAL LIGHT

(REAR COMBINATION LIGHT-LH)

0.5G/W

0.5G/B

2B

1.25B

N8A5574E

CAB AND CHASSIS ELECTRICAL 8-195

Connector List

No.

Connector Face

B-5

B-5

B-74

B-74

B-16

(12 V 
s/cab 

and 

with-

out 

side 

turn 

light c/

cab)

B-16

(24 V 

and 

12V 
with 
side 
turn 

light c/

cab)

B-30

004-012

1

2

3

4

004-013

1

2

3

4

004-012

1

2

3

4

004-013

1

2

3

4

003-008

1

3

2

006-010

1

2

3

4

5

6

008-005

1

2

3

4

5

6

7

8

B-52

B-51

B-53

B-66

B-67

B-67

B-70

B-70

No.

Connector Face

012-005

1

2

3

4

5

6

7

8

9 10 11 12

014-001

1 2 3 4 5 6 7 8

9 1011121314

012-004

1

2

3

4

5

6

7

8

9 10 11 12

002-024

1 2

004-001

1

2

3

4

004-002

2
4

1
3

014-002

1 2 3

7 8 9 10

11

4

12

5

13

6

14

014-003

6 5 4

1413 12 11

3 2 1

9 8 7

10