2005 NISSAN NAVARA engine

COMBINATION METERS
DI-21
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Engine Speed Signal InspectionEKS00PDG
Symptom: Tachometer indication is malfunction.
1.CHECK COMBINATION METER INPUT SIGNAL
1. Start engine and select “METER” on CONSULT-II.
2. Using “TACHO METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” with tachometer pointer of combina-
tion meter.
OK or NG
OK >> Perform ECM self-diagnosis. Refer toEC-59, "CON-
SULT-II Function (ENGINE)".
NG >> Replace combination meter. (Perform self-diagnosis of
ECM when the value in the monitor indicates 8191.875
rpm. Then repair or replace the malfunction part. Refer
toEC-59, "
CONSULT-II Function (ENGINE)".)
Engine Coolant Temperature Signal InspectionEKS00PDH
Symptom: Water temperature gauge indication is malfunction.
1.CHECK COMBINATION METER INPUT SIGNAL
1. Start engine and select “METER” on CONSULT-II.
2. Using “W TEMP METER” on “DATA MONITOR”, compare the
value of “DATA MONITOR” with water temperature gauge
pointer of combination meter.
OK or NG
OK >> Perform ECM self-diagnosis. Refer toEC-59, "CON-
SULT-II Function (ENGINE)".
NG >> Replace combination meter. (Perform self-diagnosis of ECM when the value in the monitor indi-
cates 215°C. Then repair or replace the malfunction part. Refer toEC-59, "
CONSULT-II Function
(ENGINE)".)
PKIA2090E
Water temperature gauge pointer Reference value of data monitor [°C(°F)]
Hot Approx. 130 (266)
Middle Approx. 70 - 105 (158 - 221)
Cold Approx. 50 (122)
PKIA2091E

DI-28
WARNING LAMPS
WARNING LAMPS
PFP:24814
System DescriptionEKS00MHA
OIL PRESSURE WARNING LAMP
Oil Pressure Warning
Oil pressure warning lamp turns ON when engine oil pressure reducing abnormally.
lIPDM E/R reads oil pressure switch signal from oil pressure switch, and transmits the signal to combina-
tion meter with CAN communication.
lCombination meter turns oil pressure warning lamp ON with received oil pressure switch signal.
Oil Level Warning
If engine oil level is 15 mm below low level of oil level gauge, oil level warning is detected.
Oil pressure warning lamp blinks and “OIL Lo” is displayed on odo/trip meter display, when oil level warning is
detected.
Oil level warning is displayed during ignition switch ON for 30 seconds after engine oil maintenance informa-
tion is displayed for 5 seconds.
lCombination meter reads oil level signal from oil level sensor.
lWhen combination meter judges oil level warning condition by oil level signal, oil level warning is dis-
played.
NOTE:
lOil level is gauged when the driver door is open.
lOil level is not gauged for 5 minutes after ignition switch OFF to wait oil falling down from cylinder head.
Component Parts and Harness Connector LocationEKS00MHB
SKIB4797E
SKIB4761E

DI-44
WARNING LAMPS
Oil Pressure Warning Lamp Stays Off (Ignition Switch ON)
EKS00M52
1.CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer toPG-19, "
Auto Active Test".
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 4.
2.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector and oil pressure switch connector.
3. Check continuity between IPDM E/R harness connector (A) and
oil pressure switch harness connector (B).
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3.CHECK OIL PRESSURE SWITCH
Check oil pressure switch. Refer toDI-47, "
OIL PRESSURE SWITCH".
OK or NG
OK >> Replace IPDM E/R. Refer toPG-26, "Removal and Installation of IPDM E/R".
NG >> Replace oil pressure switch.
4.CHECK COMBINATION METER (CONSULT-II)
Perform self-diagnosis of combination meter. Refer toDI-15, "
CONSULT-II Function (METER)".
Self-diagnosis results
No malfunction detected>> GO TO 5.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
5.CHECK COMBINATION METER INPUT SIGNAL
Select “METER” on CONSULT-II. Operate ignition switch with “OIL
W/L” of “DATA MONITOR” and check operation status.
OK or NG
OK >> Replace combination meter.
NG >> Replace IPDM E/R.
AB
Connector Terminal Connector Terminal
E17 42 F33 1
PKIC1995E
“OIL W/L”
When ignition switch is in ON
position (Engine stopped):ON
When engine running : OFF
PKIA2064E

WARNING LAMPS
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Oil Pressure Warning Lamp Does Not Turn Off (Oil Pressure Is Normal)EKS00M53
NOTE:
For oil pressure inspection, refer toLU-5, "
ENGINE OIL PRESSURE CHECK".
1.CHECK OIL PRESSURE WARNING LAMP OPERATION
Activate IPDM E/R auto active test. Refer toPG-19, "
Auto Active Test".
Does oil pressure warning lamp blink?
YES >> GO TO 2.
NO >> GO TO 5.
2.CHECK IPDM E/R OUTPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect oil pressure switch connector.
3. Turn ignition switch ON.
4. Check voltage between oil pressure switch harness connector
and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK OIL PRESSURE SWITCH
1. Turn ignition switch OFF.
2. Check oil pressure switch. Refer toDI-47, "
OIL PRESSURE SWITCH".
OK or NG
OK >> Replace IPDM E/R. Refer toPG-26, "Removal and Installation of IPDM E/R".
NG >> Replace oil pressure switch.
4.CHECK OIL PRESSURE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector and
ground.
OK or NG
OK >> Replace IPDM E/R. Refer toPG-26, "Removal and
Installation of IPDM E/R".
NG >> Repair harness or connector.
Terminals
Vo l ta g e
(Approx.) (+)
(–)
Oil pressure switch
connectorTerminal
F33 1 Ground 12 V
PKIC2151E
IPDM E/R connector Terminal
GroundContinuity
E17 42 No
SKIB6850E

DI-46
WARNING LAMPS
5.CHECK IPDM E/R (CONSULT-II)
Perform self-diagnosis of IPDM E/R. Refer toPG-16, "
CONSULT-II Function (IPDM E/R)".
Self-diagnosis results
No malfunction detected>>Replace combination meter.
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.
Oil Pressure Warning Lamp Keeps Blinking (Oil Level Is Normal)EKS00MM6
NOTE:
For engine oil level inspection, refer toLU-5, "
ENGINE OIL LEVEL".
If combination meter detects that oil level sensor is open or short circuit, oil level warning is displayed.
1.CHECK OIL LEVEL SENSOR
1. Turn ignition switch OFF.
2. Disconnect oil level sensor connector.
3. Check oil level sensor. Refer toDI-47, "
OIL LEVEL SENSOR".
OK or NG
OK >> GO TO 2.
NG >> Replace oil level sensor.
2.CHECK OIL LEVEL SENSOR POWER SUPPLY CIRCUIT
1. Disconnect combination meter connector.
2. Check continuity between combination meter harness connector
(A) and oil level sensor harness connector (B).
3. Check continuity between combination meter harness connector
(A) and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
AB
Continuity
Connector Terminal Connector Terminal
M22 51 F34 3 Yes
A
GroundContinuity
Connector Terminal
M22 51 No
SKIB4799E

WARNING LAMPS
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3.CHECK OIL LEVEL SENSOR GROUND CIRCUIT
1. Check continuity between combination meter harness connector
(A) and oil level sensor harness connector (B).
2. Check continuity between combination meter harness connector
(A) and ground.
OK or NG
OK >> Replace combination meter.
NG >> Repair harness or connector.
Component InspectionEKS00M54
OIL PRESSURE SWITCH
Check continuity between oil pressure switch and ground.
OIL LEVEL SENSOR
Check resistance between oil level sensor terminals 1 and 3.
AB
Continuity
Connector Terminal Connector Terminal
M22 52 F34 1 Yes
A
GroundContinuity
Connector Terminal
M22 52 No
SKIB4800E
ConditionOil pressure kPa (bar, kg/cm2,
psi)Continuity
Engine stopped Less than 29 (0.3, 0.3, 4) Yes
Engine running More than 29 (0.3, 0.3, 4) No
ELF0044D
Terminal Resistance value [W]
13 3–20
SKIB4845E

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTIONEC
A
EC
ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 6
DTC No. Index ......................................................... 6
Alphabetical Index .................................................... 8
PRECAUTIONS ........................................................ 10
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” ................................................................ 10
On Board Diagnostic (OBD) System of Engine ...... 10
Precautions ............................................................ 10
Wiring Diagrams and Trouble Diagnosis ................ 13
PREPARATION ......................................................... 14
Special Service Tools ............................................. 14
Commercial Service Tools ...................................... 14
ENGINE CONTROL SYSTEM .................................. 15
System Diagram ..................................................... 15
Vacuum Hose Drawing ........................................... 16
System Chart ......................................................... 18
Fuel Injection Control System ................................ 18
Fuel Injection Timing Control System ..................... 20
Air Conditioning Cut Control ................................... 20
Fuel Cut Control (At No Load & High Engine Speed)... 20
Crankcase Ventilation System ............................... 21
CAN Communication .............................................. 22
BASIC SERVICE PROCEDURE .............................. 23
Fuel Filter ............................................................... 23
Fuel Pump Learning Value Clearing ...................... 24
Injector Adjustment Value Registration .................. 25
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 27
DTC Detection Logic .............................................. 27
Diagnostic Trouble Code (DTC) ............................. 27
Freeze Frame Data ................................................ 28
NATS (Nissan Anti-theft System) ........................... 28
Malfunction Indicator (MI) ....................................... 28
Relationship Between MI, DTC, CONSULT-II and
Driving Patterns ...................................................... 31
TROUBLE DIAGNOSIS ............................................ 33
Trouble Diagnosis Introduction ............................... 33
DTC Inspection Priority Chart ................................ 37
Basic Inspection ..................................................... 38
Symptom Matrix Chart ........................................... 42Engine Control Component Parts Location ............ 46
Circuit Diagram ....................................................... 50
ECM Harness Connector Terminal Layout ............. 52
ECM Terminals And Reference Value .................... 52
CONSULT-II Function (ENGINE) ............................ 59
CONSULT-II Reference Value in Data Monitor Mode
... 66
Major Sensor Reference Graph in Data Monitor
Mode ....................................................................... 69
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ......................................................................... 70
Description .............................................................. 70
Diagnostic Procedure ............................................. 70
POWER SUPPLY AND GROUND CIRCUIT ............. 71
ECM Terminals and Reference Value ..................... 71
Wiring Diagram ....................................................... 72
Diagnostic Procedure ............................................. 73
Ground Inspection .................................................. 78
DTC U1000 CAN COMMUNICATION LINE .............. 79
Description .............................................................. 79
On Board Diagnosis Logic ...................................... 79
DTC Confirmation Procedure ................................. 79
Wiring Diagram ....................................................... 80
Diagnostic Procedure ............................................. 81
DTC P0016 CKP - CMP CORRELATION ................. 82
On Board Diagnosis Logic ...................................... 82
DTC Confirmation Procedure ................................. 82
Diagnostic Procedure ............................................. 82
DTC P0088 FUEL SYSTEM ...................................... 84
On Board Diagnosis Logic ...................................... 84
DTC Confirmation Procedure ................................. 84
Diagnostic Procedure ............................................. 84
Removal and Installation ........................................ 85
DTC P0089 FUEL PUMP .......................................... 86
On Board Diagnosis Logic ...................................... 86
DTC Confirmation Procedure ................................. 86
Diagnostic Procedure ............................................. 87
Removal and Installation ........................................ 87
DTC P0093 FUEL SYSTEM ...................................... 88
On Board Diagnosis Logic ...................................... 88

EC-2
DTC Confirmation Procedure ................................. 88
Diagnostic Procedure ............................................. 89
Component Inspection ............................................ 90
Removal and Installation ........................................ 91
DTC P0102, P0103 MAF SENSOR ........................... 92
Component Description .......................................... 92
CONSULT-II Reference Value in Data Monitor Mode
... 92
ECM Terminals and Reference Value ..................... 92
On Board Diagnosis Logic ...................................... 93
DTC Confirmation Procedure ................................. 93
Wiring Diagram ....................................................... 94
Diagnostic Procedure ............................................. 95
Component Inspection ............................................ 96
Removal and Installation ........................................ 97
DTC P0112, P0113 IAT SENSOR ............................. 98
Component Description .......................................... 98
On Board Diagnosis Logic ...................................... 98
DTC Confirmation Procedure ................................. 98
Wiring Diagram .....................................................100
Diagnostic Procedure ...........................................101
Component Inspection ..........................................102
Removal and Installation ......................................102
DTC P0117, P0118 ECT SENSOR ..........................103
Description ............................................................103
On Board Diagnosis Logic ....................................103
DTC Confirmation Procedure ...............................103
Wiring Diagram .....................................................105
Diagnostic Procedure ...........................................106
Component Inspection ..........................................107
Removal and Installation ......................................107
DTC P0122, P0123 APP SENSOR .........................108
Description ............................................................108
CONSULT-II Reference Value in Data Monitor Mode
.108
ECM Terminals and Reference Value ...................108
On Board Diagnosis Logic ....................................109
DTC Confirmation Procedure ...............................109
Wiring Diagram .....................................................110
Diagnostic Procedure ............................................111
Component Inspection ..........................................112
Removal and Installation ......................................112
DTC P0182, P0183 FUEL PUMP TEMPERATURE
SENSOR ..................................................................113
Description ............................................................113
CONSULT-II Reference Value in Data Monitor Mode
.113
ECM Terminals and Reference Value ...................113
On Board Diagnosis Logic ....................................113
DTC Confirmation Procedure ...............................114
Wiring Diagram .....................................................115
Diagnostic Procedure ...........................................116
Removal and Installation ......................................117
DTC P0192, P0193 FRP SENSOR .........................118
Description ............................................................118
CONSULT-II Reference Value in Data Monitor Mode
.118
ECM Terminals and Reference Value ...................118
On Board Diagnosis Logic ....................................118DTC Confirmation Procedure ................................119
Wiring Diagram .....................................................120
Diagnostic Procedure ............................................121
Component Inspection ..........................................122
Removal and Installation .......................................122
DTC P0200 FUEL INJECTOR .................................123
On Board Diagnosis Logic ....................................123
DTC Confirmation Procedure ................................123
Diagnostic Procedure ............................................123
DTC P0201 - P0204 FUEL INJECTOR ...................125
Component Description ........................................125
CONSULT-II Reference Value in Data Monitor Mode
.125
ECM Terminals and Reference Value ...................125
On Board Diagnosis Logic ....................................126
DTC Confirmation Procedure ................................127
Wiring Diagram .....................................................128
Diagnostic Procedure ............................................129
Component Inspection ..........................................130
Removal and Installation .......................................131
DTC P0217 ENGINE OVER TEMPERATURE ........132
Description ............................................................132
CONSULT-II Reference Value in Data Monitor Mode
.133
On Board Diagnosis Logic ....................................133
Overall Function Check .........................................133
Wiring Diagram .....................................................135
Diagnostic Procedure ............................................137
Main 12 Causes of Overheating ...........................140
Component Inspection ..........................................141
DTC P0222, P0223 APP SENSOR .........................142
Description ............................................................142
CONSULT-II Reference Value in Data Monitor Mode
.142
ECM Terminals and Reference Value ...................142
On Board Diagnosis Logic ....................................143
DTC Confirmation Procedure ................................143
Wiring Diagram .....................................................144
Diagnostic Procedure ............................................145
Component Inspection ..........................................146
Removal and Installation .......................................146
DTC P0234 TC SYSTEM .........................................147
Description ............................................................147
ECM Terminals and Reference Value ...................147
On Board Diagnosis Logic ....................................148
Overall Function Check .........................................148
Wiring Diagram .....................................................149
Diagnostic Procedure ............................................150
Component Inspection ..........................................152
Removal and Installation .......................................152
DTC P0237, P0238 TC BOOST SENSOR ..............153
Component Description ........................................153
CONSULT-II Reference Value in Data Monitor Mode
.153
ECM Terminals and Reference Value ...................153
On Board Diagnosis Logic ....................................154
DTC Confirmation Procedure ................................154
Wiring Diagram .....................................................155
Diagnostic Procedure ............................................156