Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual — part 190

ENGINE DRIVEABILITY AND EMISSIONS

6E–1

ENGINE

CONTENTS

C24SE ENGINE DRIVEABILITY AND EMISSIONS

ABBREVIATIONS CHARTS . . . . . ..

6E-6

ECM CIRCUIT DIAGRAM . . . . . . .

6E-12

GROUND POINT CHART (1/4) . . . . .

6E-13

LOCATION . . . . . . . . . . . .

6E-17

CABLE HARNESS & CONNECTOR

LOCATION . . . . . . . . . . . ..

6E-19

CONNECTOR LIST . . . . . . . . ...

6E-22

RELAY AND FUSE . . . . . . . . .

6E-24

RELAY AND FUSE BOX LOCATION . .

6E-24

RELAY AND FUSE BOX LOCATION . .

6E-25

FUSE AND RELAY LOCATION . . . .

6E-26

ECM WIRING DIAGRAM (1/9) . . . . ..

6E-27

ECM WIRING DIAGRAM (2/9) . . . . ..

6E-28

ECM WIRING DIAGRAM (3/9) . . . . ..

6E-29

ECM WIRING DIAGRAM (4/9) . . . . ..

6E-30

ECM WIRING DIAGRAM (5/9) . . . . ..

6E-31

ECM WIRING DIAGRAM (6/9) . . . . ..

6E-32

ECM WIRING DIAGRAM (7/9) . . . . ..

6E-33

ECM WIRING DIAGRAM (8/9) . . . . ..

6E-34

ECM WIRING DIAGRAM (9/9) . . . . ..

6E-35

ECM CONNECTOR PIN ASSIGNMENT &

OUTPUT SIGNAL . . . . . . . . .

6E-36

GENERAL DESCRIPTION FOR ECM AND

SENSORS . . . . . . . . . . . ...

6E-40

Engine Control Module (ECM) . . . . ...

6E-40

Manifold Absolute Pressure (MAP) Sensor

6E-40

Throttle Position Sensor (TPS) . . . . ..

6E-41

Idle Air Control (IAC) Valve . . . . . ...

6E-41

Crankshaft Position (CKP) Sensor . . .

6E-42

Engine Coolant Temperature (ECT) Sensor

6E-42

Intake Air Temperature (IAT) Sensor . .

6E-43

Vehicle Speed Sensor (VSS) . . . . .

6E-43

Heated Oxygen (O

2

) Sensor . . . . . .

6E-43

GENERAL DESCRIPTION FOR FUEL

METERING . . . . . . . . . . . ..

6E-44

Battery Voltage Correction Mode . . . ..

6E-44

Clear Flood Mode . . . . . . . . . ..

6E-44

Deceleration Fuel Cutoff (DFCO) Mode .

6E-44

Engine Speed/ Vehicle Speed/ Fuel Disable

Mode . . . . . . . . . . . . . .

6E-44

Acceleration Mode . . . . . . . . . .

6E-44

Fuel Cutoff Mode . . . . . . . . . ...

6E-44

Starting Mode . . . . . . . . . . .

6E-44

Run Mode . . . . . . . . . . . . ..

6E-44

Fuel Metering System Components . . ..

6E-45

Fuel Injector . . . . . . . . . . . ...

6E-45

Fuel Pressure Regulator . . . . . . .

6E-45

Fuel Rail . . . . . . . . . . . . . .

6E-45

Fuel Pump Electrical Circuit . . . . . ...

6E-45

Thottle Body Unit . . . . . . . . . ...

6E-45

GENERAL DESCRIPTION FOR ELECTRIC

IGNITION SYSTEM . . . . . . . . .

6E-46

Spark Plug . . . . . . . . . . . . .

6E-46

GENERAL DESCRIPTION FOR EVAPORATIVE

EMISSION SYSTEM . . . . . . . ...

6E-49

EVAP Emission Control System Purpose ..

6E-49

EVAP Emission Control System Operation

6E-49

System Fault Detection . . . . . . . ..

6E-49

POSITIVE CRANKCASE VENTILATION (PCV)

SYSTEM . . . . . . . . . . . . ..

6E-51

Crankcase Ventilation System Purpose .

6E-51

A/C CLUTCH DIAGNOSIS . . . . . .

6E-52

A/C Clutch Circuit Operation . . . . . ..

6E-52

A/C Clutch Circuit Purpose . . . . . .

6E-52

A/C Request Signal . . . . . . . . ...

6E-52

ISUZU STRATEGY BASED DIAGNOSTICS

6E-53

Overview . . . . . . . . . . . . .

6E-53

STRATEGY BASED DIAGNOSTICS CHART 6E-53

Diagnostic Thought Process . . . . . ..

6E-54

1. Verify the Complaint . . . . . . . ..

6E-54

2. Perform Preliminary Checks . . . . ..

6E-54

3. Check Bulletins and Troubleshooting

Hints . . . . . . . . . . . . . .

6E-55

4. Perform Service Manual Diagnostic

Checks . . . . . . . . . . . . . .

6E-55

5a and 5b. Perform Service Manual Diagnostic

Procedures . . . . . . . . . . . ..

6E-55

5c. Technician Self Diagnoses . . . . ..

6E-55

5d. Intermittent Diagnosis . . . . . . ..

6E-56

5e. Vehicle Operates as Designed . . .

6E-57

6. Re-examine the complaint . . . . . .

6E-58

7. Repair and Verify Fix . . . . . . . .

6E-58

GENERAL SERVICE INFORMATION . ...

6E-59

On-Board Diagnostic (OBD) . . . . . ..

6E-60

6E–2

ENGINE DRIVEABILITY AND EMISSIONS

On-Board Diagnostic Tests . . . . . ...

6E-60

The Diagnostic Executive . . . . . . ..

6E-60

Diagnostic Information . . . . . . . ...

6E-60

Check Engine Lamp . . . . . . . . ..

6E-60

Data Link Connector (DLC) . . . . . ...

6E-60

Tech 2 Operating Flow Cart (Start Up) . ..

6E-62

TYPICAL SCAN DATA & DEFINITIONS
(ENGINE DATA) . . . . . . . . ...

6E-64

TYPICAL SCAN DATA & DEFINITIONS
(O2 SENSOR DATA) . . . . . . .

6E-66

MISCELLANEOUS TEST . . . . . . ..

6E-68

PLOTTING SNAPSHOT GRAPH . . . ..

6E-70

Plotting Graph Flow Chart (Plotting graph after

obtaining vehicle information) . . . . ..

6E-71

Flow Chart for Snapshot Replay

(Plotting Graph) . . . . . . . . . ...

6E-72

ON-BOARD DIAGNOSTIC (OBD) SYSTEM

CHECK . . . . . . . . . . . . .

6E-82

Circuit Description . . . . . . . . . .

6E-82

Diagnostic Aids . . . . . . . . . . ..

6E-82

Test Description . . . . . . . . . . .

6E-82

ON-BOARD DIAGNOSTIC (OBD) SYSTEM

CHECK . . . . . . . . . . . . .

6E-83

NO CHECK ENGINE LAMP (MIL) . . . .

6E-86

Circuit Description . . . . . . . . . .

6E-86

Diagnostic Aids . . . . . . . . . . ..

6E-86

No Check Engine Lamp (MIL) . . . . ...

6E-86

CHECK ENGINE LAMP (MIL) “ON”

STEADY . . . . . . . . . . . . ..

6E-88

Circuit description . . . . . . . . . ..

6E-88

Diagnostic Aids . . . . . . . . . . ..

6E-88

Check Engine Lamp (MIL) “ON” Steady .

6E-88

FUEL METERING SYSTEM CHECK . .

6E-90

FUEL INJECTOR COIL TEST PROCEDURE

AND FUEL INJECTOR BALANCE TEST
PROCEDURE . . . . . . . . . . ..

6E-90

Test Description . . . . . . . . . . .

6E-90

Injector Coil Test Procedure (Steps 1-6)

and Injector Balance Test Procedure
(Steps 7-11) . . . . . . . . . . . .

6E-91

Injector Coil Test Procedure (Steps 1-6)

and Injector Balance Test Procedure
(Steps 7-11) . . . . . . . . . . . .

6E-92

FUEL SYSTEM ELECTRICAL TEST . .

6E-95

Circuit Description . . . . . . . . . .

6E-95

Diagnostic Aids . . . . . . . . . . ..

6E-95

Fuel Pressure Relief Procedure . . . .

6E-96

Fuel Pressure Gauge Installation . . . ..

6E-96

Fuel System Electrical Test . . . . . ...

6E-96

FUEL SYSTEM DIAGNOSIS . . . . . .

6E-100

Circuit Description . . . . . . . . . .

6E-100

Test Description . . . . . . . . . . .

6E-100

Fuel Pressure Relief Procedure . . . . .

6E-101

Fuel Pressure Gauge Installation . . . ..

6E-101

Fuel System Diagnosis . . . . . . . ..

6E-102

ECM DIAGNOSTIC TROUBLE CODES

(DTC) . . . . . . . . . . . . . ...

6E-105

DIAGNOSTIC TROUBLE CODE (DTC) P0107

MANIFOLD ABSOLUTE PRESSURE
CIRCUIT LOW INPUT . . . . . . . .

6E-111

Circuit Description . . . . . . . . . ..

6E-111

Diagnostic Aids . . . . . . . . . . ..

6E-111

Diagnostic Trouble Code (DTC) P0107

Manifold Absolute Pressure Circuit Low
Input . . . . . . . . . . . . . . .

6E-112

DIAGNOSTIC TROUBLE CODE (DTC) P0108

MANIFOLD ABSOLUTE PRESSURE CIRCUIT
HIGH INPUT . . . . . . . . . . .

6E-115

Circuit Description . . . . . . . . . ..

6E-115

Diagnostic Aids . . . . . . . . . . ..

6E-116

Diagnostic Trouble Code (DTC) P0108

Manifold Absolute Pressure Circuit High
Input . . . . . . . . . . . . . . .

6E-116

DIAGNOSTIC TROUBLE CODE (DTC) P0112

INTAKE AIR TEMPERATURE SENSOR LOW
INPUT . . . . . . . . . . . . . ..

6E-119

Circuit Description . . . . . . . . . ..

6E-119

Diagnostic Aids . . . . . . . . . . ..

6E-119

Diagnostic Trouble Code (DTC) P0112

Intake Air Temperature Sensor Low
Input . . . . . . . . . . . . . . .

6E-120

DIAGNOSTIC TROUBLE CODE (DTC) P0113

INTAKE AIR TEMPERATURE SENSOR
HIGH INPUT . . . . . . . . . . .

6E-123

Circuit Description . . . . . . . . . ..

6E-123

Diagnostic Aids . . . . . . . . . . ..

6E-123

Diagnostic Trouble Code (DTC) P0113

Intake Air Temperature Sensor High Input

6E-124

DIAGNOSTIC TROUBLE CODE (DTC) P0117

ENGINE COOLANT TEMPERATURE
SENSOR LOW INPUT . . . . . . . .

6E-128

Circuit Description . . . . . . . . . ..

6E-128

Diagnostic Aids . . . . . . . . . . ..

6E-128

Diagnostic Trouble Code (DTC) P0117

Engine Coolant Temperature Sensor Low
Input . . . . . . . . . . . . . . .

6E-129

DIAGNOSTIC TROUBLE CODE (DTC) P0118

ENGINE COOLANT TEMPERATURE
SENSOR HIGH INPUT . . . . . . .

6E-131

Circuit Description . . . . . . . . . ..

6E-131

Diagnostic Aids . . . . . . . . . . ..

6E-131

Diagnostic Trouble Code (DTC) P0118

Engine Coolant Temperature Sensor High

ENGINE DRIVEABILITY AND EMISSIONS

6E–3

Input . . . . . . . . . . . . . . .

6E-132

DIAGNOSTIC TROUBLE CODE (DTC) P0122

THROTTLE POSITION SENSOR LOW
INPUT . . . . . . . . . . . . . ..

6E-135

Circuit Description . . . . . . . . . .

6E-135

Diagnostic Aids . . . . . . . . . . ..

6E-135

Diagnostic Trouble Code (DTC) P0122

Throttle Position Sensor Low Input . . ..

6E-136

DIAGNOSTIC TROUBLE CODE (DTC) P0123

THROTTLE POSITION SENSOR HIGH
INPUT . . . . . . . . . . . . . ..

6E-139

Circuit Description . . . . . . . . . .

6E-139

Diagnostic Aids . . . . . . . . . . ..

6E-139

Diagnostic Trouble Code (DTC) P0123

Throttle Position Sensor High Input . . .

6E-140

DIAGNOSTIC TROUBLE CODE (DTC) P0131

O

2

SENSOR CIRCUIT LOW VOLTAGE

(BANK 1 SENSOR 1) . . . . . . . ..

6E-143

Circuit Description . . . . . . . . . .

6E-143

Diagnostic Aids . . . . . . . . . . ..

6E-143

Diagnostic Trouble Code (DTC) P0131

O

2

Sensor Circuit Low Voltage

(Bank 1 Sensor 1). . . . . . . . . .

6E-144

DIAGNOSTIC TROUBLE CODE (DTC) P0132

O

2

SENSOR CIRCUIT HIGH VOLTAGE

(BANK 1 SENSOR 1) . . . . . . . ..

6E-147

Circuit Description . . . . . . . . . .

6E-147

Diagnostic Aids . . . . . . . . . . ..

6E-147

Diagnostic Trouble Code (DTC) P0132

O

2

Sensor Circuit High Voltage

(Bank 1 Sensor 1) . . . . . . . . .

6E-148

DIAGNOSTIC TROUBLE CODE (DTC) P0134

O

2

SENSOR NO ACTIVITY DEFECTED

CIRCUIT (BANK 1 SENSOR 1) . . . ...

6E-151

Circuit Description . . . . . . . . . .

6E-151

Diagnostic Aids . . . . . . . . . . ..

6E-152

Diagnostic Trouble Code (DTC) P0134

O

2

Sensor Circuit No Activity Detected

(Bank 1 Sensor 1) . . . . . . . . .

6E-152

DIAGNOSTIC TROUBLE CODE (DTC) P0135

O

2

SENSOR HEATER CIRCUIT

(BANK 1 SENSOR 1) . . . . . . . ..

6E-155

Circuit Description . . . . . . . . . .

6E-155

Diagnostic Aids . . . . . . . . . . ..

6E-156

Diagnostic Trouble Code (DTC) P0135

O

2

Sensor Heater Circuit

(Bank 1 Sensor 1) . . . . . . . . .

6E-156

DIAGNOSTIC TROUBLE CODE (DTC) P0201

INJECTOR 1 CONTROL CIRCUIT . . .

6E-159

DIAGNOSTIC TROUBLE CODE (DTC) P0202

INJECTOR 2 CONTROL CIRCUIT . . .

6E-159

DIAGNOSTIC TROUBLE CODE (DTC) P0203

INJECTOR 3 CONTROL CIRCUIT . . ..

6E-159

DIAGNOSTIC TROUBLE CODE (DTC) P0204

INJECTOR 4 CONTROL CIRCUIT . . ..

6E-159

Circuit Description . . . . . . . . . ..

6E-159

Diagnostic Aids . . . . . . . . . . ..

6E-160

Diagnostic Trouble Code (DTC) P0201

Injector 1 Control Circuit . . . . . . ..

6E-160

Diagnostic Trouble Code (DTC) P0202

Injector 2 Control Circuit . . . . . . ..

6E-160

Diagnostic Trouble Code (DTC) P0203

Injector 3 Control Circuit . . . . . . ..

6E-160

Diagnostic Trouble Code (DTC) P0204

Injector 4 Control Circuit . . . . . . ..

6E-160

DIAGNOSTIC TROUBLE CODE (DTC) P0325

KNOCK SENSOR (KS) CIRCUIT
MALFUNCTION . . . . . . . . . ...

6E-166

Circuit Description . . . . . . . . . ..

6E-166

Diagnostic Aids . . . . . . . . . . ..

6E-166

Diagnostic Trouble Code (DTC) P0325

Knock Sensor Module Circuit . . . . ..

6E-166

DIAGNOSTIC TROUBLE CODE (DTC) P0327

KNOCK SENSOR (KS) CIRCUIT LOW
INPUT . . . . . . . . . . . . . ..

6E-169

Circuit Description . . . . . . . . . ..

6E-169

Diagnostic Aids . . . . . . . . . . ..

6E-169

Diagnostic Trouble Code (DTC) P0327

Knock Sensor Circuit . . . . . . . ...

6E-170

DIAGNOSTIC TROUBLE CODE (DTC) P0336

CRANKSHAFT POSITION (CKP) SENSOR
CIRCUIT RANGE/PERFORMANCE (58X)

6E-172

DIAGNOSTIC TROUBLE CODE (DTC) P0337

CRANKSHAFT POSITION (CKP) SENSOR
CIRCUIT LOW INPUT (58X) . . . . ...

6E-172

Circuit Description . . . . . . . . . ..

6E-172

Diagnostic Aids . . . . . . . . . . ..

6E-173

Diagnostic Trouble Code (DTC) P0336

Crankshaft Position Sensor Circuit Range/
performance (58x) . . . . . . . . ...

6E-173

Diagnostic Trouble Code (DTC) P0337

Crankshaft Position Sensor Circuit Low
Input (58x) . . . . . . . . . . . ...

6E-173

DIAGNOSTIC TROUBLE CODE (DTC) P0351

IGNITION 1 CONTROL CIRCUIT . . .

6E-178

DIAGNOSTIC TROUBLE CODE (DTC) P0352

IGNITION 2 CONTROL CIRCUIT . . .

6E-178

Circuit Description . . . . . . . . . ..

6E-178

Diagnostic Aids . . . . . . . . . . ..

6E-178

Diagnostic Trouble Code (DTC) P0351

Ignition 1 Control Circuit . . . . . . ..

6E-179

Diagnostic Trouble Code (DTC) P0352

Ignition 2 Control Circuit . . . . . . ..

6E-179

DIAGNOSTIC TROUBLE CODE (DTC) P0443

6E–4

ENGINE DRIVEABILITY AND EMISSIONS

EVAPORATIVE EMISSION (EVAP) CONTROL
SYSTEM PURGE CONTROL VALVE CIRCUIT
MALFUNCTION . . . . . . . . . ...

6E-183

Circuit Description . . . . . . . . . .

6E-183

Diagnostic Aids . . . . . . . . . . ..

6E-183

Diagnostic Trouble Code (DTC) P0443

Evap Emission Control System Purge Control
Circuit . . . . . . . . . . . . . ..

6E-184

DIAGNOSTIC TROUBLE CODE (DTC) P0502

VEHICLE SPEED SENSOR (VSS) CIRCUIT
LOW INPUT . . . . . . . . . . . .

6E-187

Circuit Description . . . . . . . . . .

6E-187

Diagnostic Aids . . . . . . . . . . ..

6E-187

Diagnostic Trouble Code (DTC) P0502 Vehicle

Speed Sensor Circuit Low Input . . . ..

6E-188

DIAGNOSTIC TROUBLE CODE (DTC) P0562

SYSTEM VOLTAGE LOW . . . . . ...

6E-194

Circuit Description . . . . . . . . . .

6E-194

Diagnostic Aids . . . . . . . . . . ..

6E-194

Diagnostic Trouble Code (DTC) P0562

System Voltage Low . . . . . . . .

6E-194

DIAGNOSTIC TROUBLE CODE (DTC) P0563

SYSTEM VOLTAGE HIGH . . . . . ..

6E-196

Circuit Description . . . . . . . . . .

6E-196

Diagnostic Aids . . . . . . . . . . ..

6E-196

Diagnostic Trouble Code (DTC) P0563

System Voltage High . . . . . . . ...

6E-196

DIAGNOSTIC TROUBLE CODE (DTC) P0601

ECM MEMORY CHECKSUM . . . . ..

6E-198

Circuit Description . . . . . . . . . .

6E-198

Diagnostic Aids . . . . . . . . . . ..

6E-198

Diagnostic Trouble Code (DTC) P0601

ECM Memory Checksum . . . . . . .

6E-198

DIAGNOSTIC TROUBLE CODE (DTC) P0602

PROGRAMMING ERROR . . . . . ...

6E-199

Circuit Description . . . . . . . . . .

6E-199

Diagnostic Aids . . . . . . . . . . ..

6E-199

Diagnostic Trouble Code (DTC) P0602

Programming Error . . . . . . . . ..

6E-199

DTC P0650 MALFUNCTION INDICATOR

LAMP (MIL) CONTOROL CIRCUIT
MALFUNCTION . . . . . . . . . ...

6E-200

Circuit Description . . . . . . . . . .

6E-200

Diagnostic Aids . . . . . . . . . . ..

6E-200

Diagnostic Trouble Code (DTC) P0650

Malfunction Indicator Lamp (MIL) Control
Circuit Malfunction . . . . . . . . ...

6E-201

DIAGNOSTIC TROUBLE CODE (DTC) P1167

FUEL SUPPLY SYSTEM RICH DURING
DECELERATION FUEL CUT OFF . . ..

6E-203

Circuit Description . . . . . . . . . .

6E-203

Diagnostic Aids . . . . . . . . . . ..

6E-203

Diagnostic Trouble Code (DTC) P1167

Fuel Supply System Rich During Deceleration
Fuel Cutoff . . . . . . . . . . . ...

6E-204

DIAGNOSTIC TROUBLE CODE (DTC) P1171

FUEL SUPPLY SYSTEM LEAN DURING
POWER ENRICHMENT . . . . . . ..

6E-206

Circuit Description . . . . . . . . . ..

6E-206

Diagnostic Aids . . . . . . . . . . ..

6E-207

Diagnostic Trouble Code (DTC) P1171

Fuel Supply System Lean During Power
Enrichment . . . . . . . . . . . ..

6E-207

DIAGNOSTIC TROUBLE CODE (DTC) P1625

ECM SYSTEM RESET . . . . . . .

6E-209

Circuit Description . . . . . . . . . ..

6E-209

Diagnostic Aids . . . . . . . . . . ..

6E-209

Diagnostic Trouble Code (DTC) P1625

ECM System Reset . . . . . . . . .

6E-209

DIAGNOSTIC TROUBLE CODE (DTC) P1626

IMMOBILISER NO SIGNAL . . . . . .

6E-210

Circuit Description . . . . . . . . . ..

6E-210

Diagnostic Aids . . . . . . . . . . ..

6E-210

Diagnostic Trouble Code (DTC) P1626

Immobiliser No Signal . . . . . . . ..

6E-211

DIAGNOSTIC TROUBLE CODE (DTC) P1631

IMMOBILISER WRONG SIGNAL . . .

6E-214

Circuit Description . . . . . . . . . ..

6E-214

Diagnostic Aids . . . . . . . . . . ..

6E-214

Diagnostic Trouble Code (DTC) P1631

Immobiliser Wrong Signal . . . . . .

6E-215

DIAGNOSTIC TROUBLE CODE (DTC) P1648

WRONG SECURITY CODE ENTERED ..

6E-216

Circuit Description . . . . . . . . . ..

6E-216

Diagnostic Aids . . . . . . . . . . ..

6E-216

Diagnostic Trouble Code (DTC) P1648

Wrong Security Code Entered . . . . .

6E-217

DIAGNOSTIC TROUBLE CODE (DTC) P1649

IMMOBILISER FUNCTION NOT
PROGRAMMED . . . . . . . . . ..

6E-218

Circuit Description . . . . . . . . . ..

6E-218

Diagnostic Aids . . . . . . . . . . ..

6E-218

Diagnostic Trouble Code (DTC) P1649

Immobiliser Function Not Programmed ...

6E-219

DIAGNOSTIC TROUBLE CODE (DTC) P1693

TACHOMETER OUTPUT LOW VOLTAGE 6E-220

Circuit Description . . . . . . . . . ..

6E-220

Diagnostic Aids . . . . . . . . . . ..

6E-220

Diagnostic Trouble Code (DTC) P1693

Tachometer Output Low Voltage . . . .

6E-221

SYMPTOM DIAGNOSIS . . . . . . .

6E-224

PRELIMINARY CHECKS . . . . . . ..

6E-224

VISUAL/PHYSICAL CHECK . . . . . ..

6E-224