Isuzu KB P190. Manual - part 259

6E-2  Engine Control System (4JH1) 

DTC P0380 (Symptom Code 8) 

 (Flash Code 66)  ............................................6E-139

DTC P0381 (Symptom Code 4) 

 (Flash Code 67)  ............................................6E-141

DTC P0381 (Symptom Code 8) 

 (Flash Code 67)  ............................................6E-144

DTC P0400 (Symptom Code 3) 

 (Flash Code 32)  ............................................6E-146

DTC P0400 (Symptom Code 4) 

 (Flash Code 32)  ............................................6E-149

DTC P0400 (Symptom Code 5) 

 (Flash Code 32)  ............................................6E-152

DTC P0400 (Symptom Code 8) 

 (Flash Code 32)  ............................................6E-155

DTC P0500 (Symptom Code 1, A) 

 (Flash Code 24)  ............................................6E-157

DTC P0500 (Symptom Code B) 

 (Flash Code 24)  ............................................6E-160

DTC P0560 (Symptom Code 1) 

 (Flash Code 35)  ............................................6E-166

DTC P0560 (Symptom Code 2) 

 (Flash Code 35)  ............................................6E-167

DTC P0560 (Symptom Code A) 

 (Flash Code 35)  ............................................6E-169

DTC P0561 (Symptom Code A) 

 (Flash Code 18)  ............................................6E-171

DTC P0561 (Symptom Code B) 

 (Flash Code 18)  ............................................6E-173

DTC P0602 .....................................................6E-174

DTC P0606 (Symptom Code A, B) 

 (Flash Code 28)  ............................................6E-175

DTC P0645 (Symptom Code 4) 

 (Flash Code 46)  ............................................6E-176

DTC P0645 (Symptom Code 8) 

 (Flash Code 46)  ............................................6E-179

DTC P0703 (Symptom Code A, B) 

 (Flash Code 25)  ............................................6E-181

DTC P0704 (Symptom Code 6) 

 (Flash Code 57)  ............................................6E-185

DTC P1105 (Symptom Code 1) 

 (Flash Code 86)  ............................................6E-188

DTC P1105 (Symptom Code 2) 

 (Flash Code 86)  ............................................6E-189

DTC P1120 (Symptom Code 1) 

 (Flash Code 21)  ............................................6E-190

DTC P1120 (Symptom Code 7) 

 (Flash Code 21)  ............................................6E-193

DTC P1120 (Symptom Code 9) 

 (Flash Code 21)  ............................................6E-195

 

 

DTC P1120 (Symptom Code D) 

 (Flash Code 21)  ............................................6E-197

DTC P1120 (Symptom Code E) 

 (Flash Code 21)  ............................................6E-200

DTC P1173 (Symptom Code 3) 

 (Flash Code 22)  ............................................6E-204

DTC P1173 (Symptom Code 7, A) 

 (Flash Code 22)  ............................................6E-206

DTC P1335 (Symptom Code A) 

 (Flash Code 43)  ............................................6E-207

DTC P1345 (Symptom Code A) 

 (Flash Code 41)  ............................................6E-209

DTC P1520 (Symptom Code A) 

 (Flash Code 47)  ............................................6E-210

DTC P1520 (Symptom Code B) 

 (Flash Code 47)  ............................................6E-213

DTC P1605 (Symptom Code C, D, E) 

 (Flash Code 55)  ............................................6E-216

DTC P1610 (Symptom Code A) 

 (Flash Code 56)  ............................................6E-217

DTC P1611 (Symptom Code A) 

 (Flash Code 56)  ............................................6E-218

DTC P1612 (Symptom Code A) 

 (Flash Code 56)  ............................................6E-219

DTC P1613 (Symptom Code A) 

 (Flash Code 56)  ............................................6E-220

DTC P1614 (Symptom Code A) 

 (Flash Code 56)  ............................................6E-221

DTC P1625 (Symptom Code A) 

 (Flash Code 76)  ............................................6E-222

DTC P1625 (Symptom Code B) 

 (Flash Code 76)  ............................................6E-224

DTC P1630 (Symptom Code A, B) 

 (Flash Code 51)  ............................................6E-226

DTC P1650 (Symptom Code A) 

 (Flash Code 44)  ............................................6E-227

DTC P1650 (Symptom Code B) 

 (Flash Code 44)  ............................................6E-230

DTC P1651 (Symptom Code A, B) 

 (Flash Code 45)  ............................................6E-231

DTC P1690 (Symptom Code 4) 

 (Flash Code 77)  ............................................6E-234

DTC P1690 (Symptom Code 8) 

 (Flash Code 77)  ............................................6E-237

Glow Control System Check ...........................6E-239

A/C Compressor System Check .....................6E-242

Symptoms - Engine Controls .............................6E-255

Symptoms - Engine Controls ..........................6E-255

Intermittent Conditions ....................................6E-256

Hard Start........................................................6E-258

Engine Control System (4JH1)  6E-3 

Rough, Unstable, or Incorrect Idle And 

 Stalling............................................................6E-260

Cut Out, Misses...............................................6E-262

Surges/Chuggles.............................................6E-263

Lack of Power, Sluggishness, Sponginess .....6E-266

Hesitation, Sag, Stumble.................................6E-268

Fuel Knock/Combustion Noise........................6E-270

Poor Fuel Economy.........................................6E-271

Excessive Smoke (Black Smoke) ..................6E-272

Excessive Smoke (White Smoke) ..................6E-273

Repair Instructions .............................................6E-275

Engine Control Module (ECM) Replacement ..6E-275

Service Programming System (SPS) 

 Description .....................................................6E-276

Service Programming System (SPS) 

 (Remote Procedure) ......................................6E-277

Service Programming System (SPS) 

 (Pass-Thru Procedure) ..................................6E-278

Accelerator Pedal Position (APP) Sensor 

 Replacement ..................................................6E-279

Crankshaft Position Sensor (CKP) Sensor 

 Replacement ..................................................6E-279

EGR Solenoid Valve Replacement .................6E-280

Engine Coolant Temperature Coolant 

 (ECT) Sensor Replacement ...........................6E-280

Mass Air Flow (MAF) / Intake Air Temperature 

 Sensor Replacement......................................6E-280

Turbocharger Solenoid Valve Replacement 

 [High Altitude Spec]........................................6E-281

Vacuum Pressure Sensor Replacement 

 [High Altitude Spec]........................................6E-281

Vehicle Speed Sensor (VSS) Replacement....6E-282

Description And Operation .................................6E-283

Engine Control Module (ECM)  .......................6E-283

Engine Control Component Description..........6E-284

Fuel Injection System Description ...................6E-288

Low Pressure Fuel Circuit Description ............6E-290

High Pressure Fuel Circuit Description ...........6E-291

Timing Control Device Description..................6E-294

Exhaust Gas Recirculation (EGR) System 

 Description .....................................................6E-297

Turbocharger Description................................6E-298

Special Tools And Equipment ............................6E-299

Special Tools and Equipment .........................6E-299

 

 

 

6E-4  Engine Control System (4JH1) 

Specifications 

Temperature vs Resistance 

Engine Coolant Temperature vs. Resistance 

°C °F 

Ohms 

Temperature vs. Resistance Value (Approximately) 

120 248 120 

110 230 160 

100 212 200 

90 194 260 

80 176 350 

70 158 470 

60 140 640 

50 122 880 

40 104 

1250 

30 86 

1800 

20 68 

2650 

10 50 

4000 

0 32 

6180 

-10 14 9810 

-20 -4 

16000 

-30 -22 

27000 

Intake Air Temperature vs. Resistance 

°C °F 

Ohms 

Temperature vs. Resistance Value (Approximately) 

100 212 190 

90 194 240 

80 176 320 

70 158 430 

60 140 590 

50 122 810 

40 104 

1150 

30 86 

1650 

25 77 

2000 

20 68 

2430 

10 50 

3660 

0 32 

5650 

-10 14 8970 

-20 -4 

14700 

 

 

 

Altitude vs Barometric Pressure 

Altitude Measured 

in Meters (m) 

Altitude 

Measured in 

Feet (ft) 

Barometric 

Pressure 

Measured in 

Kilopascals (kPa)

Determine your altitude by contacting a local weather 
station or by using another reference source. 

4267 14000 56-64 

3962 13000 58-66 

3658 12000 61-69 

3353 11000 64-72 

3048 10000 66-74 

2743 9000 69-77 

2438 8000 71-79 

2134 7000 74-82 

1829 6000 77-85 

1524 5000 80-88 

1219 4000 83-91 

914 3000 87-98 

610 2000 90-98 

305 1000 

94-102 

0 

0 Sea Level 

96-104 

-305 -1000 

101-105 

 

 

 
 

Engine Control System (4JH1)  6E-5 

Schematic And Routing Diagrams 

Vacuum Hose Routing Diagram 

Normal Altitude Spec 

 

 
 

 

 

RTW66EMF001001 

 

Legend 

 1. Vacuum 

Pump 

  2.  Blue Stripe Vacuum Hose 

  3.  EGR Solenoid Valve 

  4.  White Stripe Vacuum Hose 

 

 

 5. Intake 

Duct 

  6.  Yellow Stripe Vacuum Hose 

 7. EGR 

Valve