Isuzu N-Series. Manual - part 888

Transmission Control System (Smoother) 7A-7

Clutch Control

0.5

YEL/

BLK

0.5

1(LHD)

3(RHD)

3(LHD)

5(RHD)

RED/

YEL

0.5

YEL/

BLK

0.5

RED/

YEL

0.5

YEL/

BLK

0.5

RED/

YEL

0.5

YEL/

RED

0.5

BLU/

WHT

0.5

BLU/

WHT

0.5

YEL/

RED

0.5

BLU/

WHT

0.5

YEL/

RED

30

29

6

12

B-427

B-425

31

2

4

J-237

J-237

TCM

Oil Pump 

ASM

T

ransmission

fluid

temperature

sensor

Lock up clutch

solenoid valve

Gearshift clutch

solenoid valve

5

6

H-4

H-17

6

14

H-119

H-118

73

Low reference

TCM

H-4

B-427

TFT

sensor

signal

5V reference

Gearshift clutch

solenoid valve

control

+B

Lock up clutch

solenoid valve

control

+B

N7A2134E

7A-8 Transmission Control System (Smoother)

Input Shaft Speed Sensor, Turbine Sensor, Gearshift Position Sensor and Gear Select Position Sensor

N7A2135E

0.5

YEL/

WHT

TCM

33

H-5

11

10

B-426

10

4

B-427

29

23

H-5

0.5

YEL/

WHT

11

H-1

19

0.5

YEL/

WHT

0.5

YEL/

BLK

32

0.5

YEL/

BLK

7

0.5

YEL/

BLK

Low reference

0.5

WHT

10

H-8

19

18

0.5

WHT

3

H-1

19

0.5

WHT

0.5

RED

0.5

WHT/

BLU

0.5

ORN/

BLU

0.5

WHT/

BLU

0.5

ORN/

BLU

8

12

H-1

19

0.5

WHT/

BLU

0.5

ORN/

BLU

9

0.5

RED

2

0.5

RED

T

urbine

Speed

Sensor

Low reference

5V reference

Input shaft

speed sensor

signal

TCM

13

B-426

0.5

YEL/

RED

15

H-1

19

0.5

YEL/

RED

27

H-5

0.5

YEL/

RED

20

H-8

0.5

BLK

6

0.5

BLK

11

0.5

BLK

1

2

J-232

5V reference

T

urbine

speed sensor

signal

5V reference

Gear select

position sensor

signal

5V reference

Gear select

position sensor

signal

11

5

26

20

H-5

0.5

YEL

0.5

BRN

0.5

YEL

0.5

BRN

0.5

YEL

0.5

BRN

5

2

H-1

18

Input

Shaft

Speed

Sensor

1

2

J-139

2

1

J-223

3

J-223

Gear Select

Position

Sensor

Gear Shift

Position

Sensor

2

1

J-142

3

J-142

Low reference

Low reference

Transmission Control System (Smoother) 7A-9

Neutral Switch, Reset Switch, Half-clutch adjustment Switch, Brake Pedal Switch, Door Switch, PTO Switch

F-5

10A

F-17

NEES (IG)

10A

F-16

10A

F-18

10A

0.5

BLK/

ORN

0.5

BLK/

ORN

0.5

BLK/

ORN

0.3

GRY/

BLU

0.3

GRY/

RED

0.3

GRY/

BLK

0.5

GRN

0.5

GRN

0.5

GRN/

YEL

0.5GRN

Stop Light

11

H-5

3

B-428

2

9

17

Fuse & Relay Box

(Glove Box)

ST

OP

 LIGHT

METER

SRS

TCM

J/C-2

Brake

Pedal

Switch

2

1

B-66

B-66

Neutral

Switch

1

2

J-50

J-50

F-28

ECM

10A

0.5

LT GRN

0.5

LT GRN

ECM

Exhaust 

Brake 

Solenoid V

alve

0.5

BLK/

BLU

0.5

BLK/

BLU

37

H-5

10

0.5B/L

2

6

4

1

Neutral

switch

signal

Reset

switch

signal

Slow

switch

signal

Fast

switch

signal

Brake

pedal

switch

Reset

Switch

6

4

B-105

B-105

Half-clutch

Adjustment

Switch       

3

B-106

1

2

B-106

J/C-G

5

4

6

TCM

0.3

2

BLK

0.5

BLK

3

BLK

1.25

BLK

B-7

Headlight

Bracket

Tail

Light

BLU/

WHT

2

BLK

2

BLK

0.5GRY/RED

1.25

GRY/

BLK

0.5

GRY/

RED

0.5

GRY/

RED

12

5

7

1

1

6

H-12

19

B-428

3

H-3

B-1

Frame

Room Lamp

TCM

PTO

switch

signal

Door

switch

signal

Ignition

voltage

W/S-B

J/C-D

J/C-H

W/S-D

W/S-C

2

3

Door Switch

(Left)

1

N-7

Door Switch

(Right)

1

N-2

PT

O

Switch

1

2

3

B-417

B-417

4

Ignition

voltage

N7A2136E

7A-10 Transmission Control System (Smoother)

Change Lever Switch

20

3

1

0.5

RED

0.5

RED

R

TCM

6

13

2

0.5

WHT

0.5

WHT

N

14

9

3

B-428

H-12

N-18

5

N-18

0.5

GRN

0.5

GRN

1

13

8

2

B-427

0.5

RED/

BLK

0.5

RED/

BLK

R

Emergency

Shift Switch

21

20

2

67

B-428

B-427

0.5

WHT/

BLK

0.5

WHT/

BLK

N

Selector

Lever

14

0.5

ORN

0.5

ORN

D

12

10

15

0.5

BLU/

BLK

0.5

BLU/

BLK

+

1

8

7

0.5

PNK/

BLK

0.5

PNK/

BLK

-

11

4

8

0.5

GRN/

BLK

0.5

GRN/

BLK

A

1.25

BLK

B-1

Frame

0.5BLK

0.5BLK

N-19

9

15

IPC

Lever A

switch

signal

Ignition

voltage

Lever -

switch

signal

Ignition

voltage

Economy

mode

switch

signal

Ignition

voltage

1st gear

start

switch

signal

Ignition

voltage

Lever +

switch

signal

Ignition

voltage

Lever D

switch

signal

Ignition

voltage

Lever N

switch

signal

Ignition

voltage

Lever R

switch

signal

Ignition

voltage

Emergency

shift 1st

switch

signal

Ignition

voltage

Emergency

shift N

switch

signal

Ignition

voltage

Emergency

shift R

switch

signal

Ignition

voltage

1

B-427

0.5

YEL/

RED

0.5YEL/RED

13

10

5

B-428

H-12

ECONO

Mode

Switch

1st

Gear

Start

Switch

0.5

BLU

0.5

BLU

21

3

N-19

0.5

YEL/

RED

IPC

0.5

BLK

0.5

BLK

N-20

N-20

6

4

3

1

N7A2137E