Isuzu KB P190. Manual - part 406

ENGINE CONTROL SYSTEM (4JK1/4JJ1)   6E-7

P1261

34

C

A

A

Injector Positive Voltage Control Circuit (Supply Voltage 
High)

P1262

34

A

A

A

Injector Positive Voltage Control Circuit Group 2

P1404

45

A

A

A

EGR Position Fault (Closed Position Error)

P1404

45

A

-

-

EGR Position Fault (Learned Position Error)

P1411

445

A

A

A

EGR Solenoid Control Driver

P1412

445

A

A

A

EGR Solenoid Control Driver

P1413

445

A

A

A

EGR Solenoid Control Driver

P156A

135

C

A

A

Battery Voltage Low

P156B

135

C

A

A

Battery Voltage High

P161B

179

C

A

A

Immobilizer Wrong Response

P1621

54

C

A

A

Control Module Long Term Memory Performance 
(Learned Data)

P1621

254

C

A

A

Control Module Long Term Memory Performance (VIN or 
Immobilizer Data)

P1664

76

D

-

-

Service Vehicle Soon Lamp Control Circuit (Low Voltage)

P1664

76

C

-

-

Service Vehicle Soon Lamp Control Circuit (High 
Voltage)

P2100

446

B

A

A

Intake Throttle Solenoid Circuit Open

P2101

446

B

A

A

Intake Throttle Solenoid Circuit Low

P2103

446

B

A

A

Intake Throttle Solenoid Circuit High

P2122

121

C

A

A

Pedal Position Sensor 1 Circuit Low Input

P2123

121

C

A

A

Pedal Position Sensor 1 Circuit High Input

P2127

122

C

A

A

Pedal Position Sensor 2 Circuit Low Input

P2128

122

C

A

A

Pedal Position Sensor 2 Circuit High Input

P2132

123

C

A

A

Pedal Position Sensor 3 Circuit Low Input

P2133

123

A

A

A

Pedal Position Sensor 3 Circuit High Input

P2138

124

C

A

A

Pedal Position Sensor 1 - 2 Voltage Correlation

P2139

125

C

A

A

Pedal Position Sensor 1 - 3 Voltage Correlation

P2140

126

C

A

A

Pedal Position Sensor 2 - 3 Voltage Correlation

P2146

158

A

A

A

Fuel Injector Group 1 Supply Voltage Circuit Short

P2147

158

A

A

A

Fuel Injector Group 1 Supply Voltage Circuit Low

P2148

158

A

A

A

Fuel Injector Group 1 Supply Voltage Circuit High

P2149

159

A

A

A

Fuel Injector Group 2 Supply Voltage Circuit Short

P2150

159

A

A

A

Fuel Injector Group 2 Supply Voltage Circuit Low

P2151

159

A

A

A

Fuel Injector Group 2 Supply Voltage Circuit High

P2227

71

A

A

-

Barometric Pressure Sensor Circuit Range/ Performance

P2228

71

A

A

A

Barometric Pressure Sensor Circuit Low

P2229

71

A

A

A

Barometric Pressure sensor Circuit High

P2621

94

-

-

A

Throttle Position Output Circuit Low

DTC

Flash 
Code

DTC Type

DTC Descriptor

Euro 4 

Specification

Except Euro 4 

Specification 

(High Output)

Except Euro 4 

Specification 

(Standard 

Output)

6E-8   ENGINE CONTROL SYSTEM (4JK1/4JJ1)

P2622

94

-

-

A

Throttle Position Output Circuit High

U0001

84

A

A

A

High Speed CAN Communication Bus

U0101

85

A

A

-

Lost Communication with TCM

U0167

177

C

A

A

Lost Communication With Vehicle Immobilizer Control 
Module

DTC

Flash 
Code

DTC Type

DTC Descriptor

Euro 4 

Specification

Except Euro 4 

Specification 

(High Output)

Except Euro 4 

Specification 

(Standard 

Output)

ENGINE CONTROL SYSTEM (4JK1/4JJ1)   6E-9

Schematic and Rounting Diagrams

Fuel System Routing Diagram

Legend

1. Fuel rail
2. Fuel pressure limiter
3. Leak off pipe
4. Fuel injector
5. Fuel return pipe
6. Fuel cooler
7. Fuel tank
8. Fuel pump and sender assembly

9. Fuel filler cap

10. Vent valve

11. Fuel feed pipe

12. One-way valve
13. Fuel filter with sedimenter
14. Fuel pressure switch
15. Fuel supply pump

 

Vacuum Hose Routing Diagram

Legend

1. Swirl control solenoid valve
2. Actuator control vacuum hose
3. Swirl control actuator
4. Brake booster
5. Vacuum pipe
6. Vacuum pump

7. Actuator control vacuum hose
8. Air cleaner
9. Turbocharger nozzle control actuator

10. Solenoid valve ventilation hose

11. Turbocharger nozzle control solenoid valve

 

RTW76ESF000101

1

2

3

4

5

11

7

8

9

10

14

13

12

15

6

RTW76ESF000201

1

2

4

5

6

9

8

3

7

11

High output

10

6E-10   ENGINE CONTROL SYSTEM (4JK1/4JJ1)

Engine Controls Schematics

Power Distribution (1)

RTW76EXF003601

X-11

X-11

Heater relay

1

2

Blower motor

Ignition switch

Ignition switch

Starter relay

SBF1 Main 120A

SBF2 ABS-1 40A

SBF3 ABS-2 20A

SBF5 IG1 40A

SBF4 ECM 40A

SBF6 Blower 30A

EB-13 A/C 10A

2 BLU/ RED

3 BLU/ RED

3 BLU/ RED

SBF8 Glow 60A

SBF7 Front Fog 20A

SBF9 IG2 60A

EB-9 Fog 15A or Trailer 20A

EB-10 Tail/Illumi 10A or Condenser fan 20A

EB-4 Engine 10A

EB-14 4WD 10A

EB-15 Horn 10A

EB-16 Hazard 10A

EB-1 ACG (S) 10A

EB-2 ECM (B) 10A

EB-3 F/Pump 10A

EB-5

H/L

HI(RH)10A

Fuse

EB-6

H/L

HI(LH)10A

Fuse

EB-7

H/L

LO(RH)10A

Fuse

EB-8

H/L

LO(LH)10A

Fuse

P-6 Body

Generator

P-5

8

BLK/

P-1

P-2

Battery

8 BLK

5WHT

Srarter

Srarter

C-3 ELEC

IG

10A Fuse

E-92

0.5

WHT

0.3 BLK

3 WHT/ RED

5 WHT

0.3 BLK

5 RED/ BLU

5 RED

3 WHT/ BLK

30 BLK/ RED

30 BLK/ YEL

P-10 Engine

5

4

X-12

X-12

ECM Fuel

pump

relay

ECM

ECM main relay

1

2

5

4

X-6

X-6

2 RED/ WHT

0.3 RED/ BLU

Fuse/

relay

box(Engine

room)

2 RED

2 RED

0.5 RED

2 WHT

2 RED/ BLU

2 WHT

2

3

1

5

Lighting switch

Head lamp relay

C-36

C-36

RED

P-16

P-15

2nd Battery

30 BLK/ YEL

30 BLK/ RED

P-10