Isuzu N-Series. Manual - part 653

6E-34    Engine Control System (4HK1) 

Camshaft Position (CMP) Sensor

Clutch Switch

Crankshaft Position (CKP) Sensor

2

WHT

Boost Pressure Sensor Signal

3

RED

Boost Pressure Sensor 5 Volts 
Reference

Connector No.

E-112

Connector Color

Black

Test Adapter No.

J-35616-33

Pin

Wire Color

Pin Function

1

BLK

CMP Sensor Shield Ground

2

BLU/WHT

CMP Sensor Signal

3

BLU/BLK

CMP Sensor 12 Volts Reference

Connector No.

J-216

Connector Color

Gray

Test Adapter No.

J-35616-33

Pin

Wire Color

Pin Function

1

2

3

N6A6454E

Connector No.

B-89

Connector Color

White

Test Adapter No.

J-35616-42

Pin

Wire Color

Pin Function

1

YEL/BLK

Clutch Pedal Switch Voltage 
Feed

2

BRN/YEL

Clutch Pedal Switch Signal

Connector No.

E-98

Connector Color

Gray

Test Adapter No.

J-35616-64A

Pin

Wire Color

Pin Function

1

YEL

CKP Sensor High Signal

2

ORN

CKP Sensor Low Signal

N6A6552E

N6A6551E

 Engine Control System (4HK1)    6E-35

Data Link Connector (DLC)

EGR Valve

Engine Coolant Temperature (ECT) Sensor

Connector No.

B-79

Connector Color

Black

Test Adapter No.

J-35616-2A

Pin

Wire Color

Pin Function

1

YEL

Diagnostic Request (ECM)

2

WHT/BLK

Class 2 Serial Communication 
(EHCU)

3

—

Not Used

4

BLK

Ground

5

BLK

Ground

6

—

Not Used

7

LT  BLU

Keyword Serial Communication 
(ECM, TCM or HSA & SRS)

8

—

Not Used

9

—

Not Used

10

—

Not Used

11

BLK/WHT

Diagnostic Request (TCM or 
HSA)

12

WHT/GRN

Diagnostic Request (EHCU)

13

GRY

Diagnostic Request (SRS)

14

—

Not Used

15

—

Not Used

16

—

Not Used

8

7

6

5

4

3

2

1

16

15

14

13

12

11

10

9

N6A3803E

Connector No.

E-94

Connector Color

Gray

Test Adapter No.

J-35616-64A

Pin

Wire Color

Pin Function

1

GRN/BLU

EGR Valve Position Sensor 5 
Volts Reference

2

BRN

EGR Valve Position Sensor Low 
Reference

3

WHT/ORN

EGR Valve Position Sensor 
Signal

4

BLK/ORN

EGR Valve Motor Control High 
Side

5

—

Not Used

6

ORN

EGR Valve Motor Control Low 
Side

N6A6553E

1

2

3

N6A6457E

6E-36    Engine Control System (4HK1) 

Engine Warm Up Switch

Exhaust Brake Solenoid Valve

Fuel Injector Cylinder No. 1

Connector No.

E-90

Connector Color

Gray

Test Adapter No.

J-35616-33

Pin

Wire Color

Pin Function

1

GRN/YEL

ECT Sensor Signal

2

BLK

ECT Sensor Low Reference

3

LT BLUK

ECT Gauge Signal

Connector No.

B-31

Connector Color

Gray

Test Adapter No.

J-35616-42

Pin

Wire Color

Pin Function

1

BLK

Indicator Lamp Ground

2

LT GRN/RED Illumination Lamp Voltage Feed

3

BRN/BLK

Engine Warm Up Switch Voltage 
Feed

4

LT GRN/BLU

Indicator Lamp Voltage Feed 
From Engine Warm Up Switch 
Signal

5

BLK

Illumination Lamp Ground

6

LT GRN/BLU Engine Warm Up Switch Signal

1

2

3

4

5

6

N6A3806E

Connector No.

J-31

Connector Color

Black

Test Adapter No.

J-35616-33

Pin

Wire Color

Pin Function

1

LT  GRN

Exhaust Brake Solenoid Valve 
Voltage Feed

2

BLK

Exhaust Brake Solenoid Valve 
Control

Connector No.

E-138

Connector Color

Silver

Pin

Wire Color

Pin Function

1

WHT

Common 1 Fuel Injector Drive

2

WHT

Common 1 Fuel Injector Drive

1 2

N6A6458E

N6A6554E

 Engine Control System (4HK1)    6E-37

Fuel Injector Cylinder No. 2

Fuel Injector Cylinder No. 3

Fuel Injector Cylinder No. 4

3

GRN

Cylinder #1 Fuel Injector 
Solenoid Control

Connector No.

E-139

Connector Color

Silver

Pin

Wire Color

Pin Function

1

RED

Common 2 Fuel Injector Drive

2

RED

Common 2 Fuel Injector Drive

3

BLU

Cylinder #2 Fuel Injector 
Solenoid Control

Connector No.

E-138

Connector Color

Silver

Pin

Wire Color

Pin Function

N6A6554E

N6A6554E

Connector No.

E-140

Connector Color

Silver

Pin

Wire Color

Pin Function

1

RED

Common 2 Fuel Injector Drive

2

RED

Common 2 Fuel Injector Drive

3

YEL

Cylinder #3 Fuel Injector 
Solenoid Control

Connector No.

E-141

Connector Color

Silver

Pin

Wire Color

Pin Function

1

WHT

Common 1 Fuel Injector Drive

2

WHT

Common 1 Fuel Injector Drive

3

BLK

Cylinder #4 Fuel Injector 
Solenoid Control

N6A6554E