2005 NISSAN NAVARA heating

CO-24
THERMOSTAT AND WATER PIPING
Removal and Installation
EBS01E6X
WARNING:
Do not remove radiator cap and/or reservoir tank cap when engine is hot. Serious burns could occur
from high pressure engine coolant escaping from radiator and/or reservoir tank.
REMOVAL
1. Remove front engine undercover and middle engine undercover. Refer toEI-15, "FRONT BUMPER".
2. Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
side of cylinder block. Refer toCO-7, "
Changing Engine Coolant"andEM-110, "CYLINDER BLOCK".
CAUTION:
Perform this step when engine is cold.
3. Remove engine cover. Refer toEM-20, "
INTAKE MANIFOLD".
4. Disconnect radiator hoses (upper and lower) from engine side. Refer toCO-11, "
RADIATOR".
5. Remove air inlet pipe and air duct between air cleaner case and turbocharger. Refer toEM-15, "
AIR
CLEANER AND AIR DUCT"andEM-28, "TURBO CHARGER".
6. Remove water outlet, water inlet and thermostat.
7. Remove thermostat housing.
8. Disconnect heater return hose and water hoses at heater return pipe side, and remove heater return pipe.
9. Remove oil level gauge guide mounting bolt, vacuum hoses (to turbocharger boost control solenoid valve)
and spill hose. Refer toEM-36, "
OIL PAN AND OIL STRAINER",EM-20, "INTAKE MANIFOLD"andEM-
44, "INJECTION TUBE AND FUEL INJECTOR".
10. Disconnect water hoses (to EGR cooler) (A/T models), vacuum hoses and heater feed hose at heater
feed pipe side, and remove heater feed pipe. Refer toEM-20, "
INTAKE MANIFOLD".
INSPECTION AFTER REMOVAL
Thermostat
lPlace a string so that it is caught in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.
lThe valve opening temperature is the temperature at which the
valve opens and falls from the thread.
lContinue heating. Check the full-open lift amount.
lAfter checking the full-open lift amount, lower the water temper-
ature and check the valve closing temperature.
Standard values
lIf out of the standard, replace thermostat.
INSTALLATION
Note the following, and install in the reverse order of removal.
lSecurely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.
lWhen inserting heater feed pipe end into cylinder head, apply a neutral detergent to O-ring. Then insert it
immediately.
SLC252B
Item Thermostat
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Full-open lift amount More than 9 mm/ 95°C (0.35 in/ 203°F)
Valve closing temperature More than 77°C(171°F)

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

DTC P0217 ENGINE OVER TEMPERATURE
EC-133
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EC
CONSULT-II Reference Value in Data Monitor ModeEBS01KFL
Specification data are reference values.
On Board Diagnosis LogicEBS01KFM
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer toCO-7, "
Changing Engine
Coolant". Also, replace the engine oil. Refer toLU-6, "Changing Engine Oil".
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer toMA-16, "
Engine Coolant Mixture Ratio".
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckEBS01KFN
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
lNever remove a radiator cap and/or a reservoir tank cap when the engine is hot. Serious burns
could be caused by high pressure fluid escaping from the radiator and the reservoir tank.
lWrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-
up pressure to escape. Then turn the cap all the way off.
MONITOR ITEM CONDITION SPECIFICATION
COOLING FAN
lEngine: After warming up, idle
the engine
lAir conditioner switch: OFFEngine coolant temperature: 97°C
(207°F) or lessOFF
Engine coolant temperature: Between
98°C (208°F) and 104°C(219°F)LOW
Engine coolant temperature: 105°C
(221°F) or moreHI
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0217
0217Engine over temperature
(Overheat)
lCooling fan does not operate properly (Over-
heat).
lCooling fan system does not operate properly
(Overheat).
lEngine coolant was not added to the system
using the proper filling method.
lEngine coolant is not within the specified
range.
lHarness or connectors
(The cooling fan circuit is open or
shorted.)
lIPDM E/R
lCooling fan
lCooling fan (Crankshaft driven)
lRadiator hose
lRadiator
lRadiator cap
lReservoir tank
lReservoir tank cap
lWater pump
lThermostat
For more information, refer toEC-140,
"Main 12 Causes of Overheating".

EC-138
DTC P0217 ENGINE OVER TEMPERATURE
5.CHECK RESERVOIR TANK CAP
Apply pressure to cap with a tester and check reservoir tank cap
relief pressure.
Refer toCO-13, "
Checking Reservoir Tank Cap".
OK or NG
OK >> GO TO 6.
NG >> Replace reservoir tank cap.
6.CHECK COMPONENT PARTS
Check the following.
lThermostat. Refer toCO-23, "THERMOSTAT AND WATER PIPING".
lEngine coolant temperature sensor. Refer toEC-107, "Component Inspection".
OK or NG
OK >> GO TO 7.
NG >> Replace malfunctioning component.
7.CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go toEC-140, "
Main 12 Causes of Overheating".
>>INSPECTION END
SLC755AC

EC-140
DTC P0217 ENGINE OVER TEMPERATURE
5.CHECK COOLING FAN MOTOR
Refer toEC-141, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace cooling fan motors.
6.CHECK INTERMITTENT INCIDENT
PerformEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
OK or NG
OK >> Replace IPDM E/R. Refer toPG-14, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-
ULE ENGINE ROOM)".
NG >> Repair or replace harness or connector.
Main 12 Causes of OverheatingEBS01KFQ
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer toCO-4, "
OVERHEATING CAUSE ANALYSIS". Engine Step Inspection item Equipment Standard Reference page
OFF 1
lBlocked radiator
lBlocked condenser
lBlocked radiator grille
lBlocked bumper
lVisual No blocking —
2
lCoolant mixturelCoolant tester 50 - 50% coolant mixture SeeMA-16, "Engine
Coolant Mixture Ratio".
3
lCoolant levellVisual Coolant up to MAX level
in reservoir tank and radi-
ator filler neckSeeCO-7, "LEVEL
CHECK".
4
lReservoir tank caplPressure tester SeeCO-13, "Checking Reservoir Tank Cap".
ON*
25lCoolant leakslVisual No leaks SeeCO-7, "CHECKING
RADIATOR SYSTEM
FOR LEAKS".
ON*
26lThermostatlTouch the upper and
lower radiator hosesBoth hoses should be hot SeeCO-23, "THERMO-
STAT AND WATER PIP-
ING".
ON*
17lCooling fanlCONSULT-II Operating See trouble diagnosis for
DTC P0217 (EC-132
).
ON*
27lCooling fan (Crankshaft
driven)lVisual OperatingSeeCO-19, "COOLING
FA N".
OFF 8
lCombustion gas leaklColor checker chemical
tester 4 Gas analyzerNegative —
ON*
39lCoolant temperature
gaugelVisual Gauge less than 3/4
when driving—
lCoolant overflow to
reservoir tanklVisual No overflow during driving
and idlingSeeCO-7, "Changing
Engine Coolant".
OFF*
410lCoolant return from
reservoir tank to radia-
torlVisual Should be initial level in
reservoir tankSeeCO-7, "LEVEL
CHECK".
OFF 11
lCylinder headlStraight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)SeeEM-92, "CYLINDER
HEAD".
12
lCylinder block and pis-
tonslVisual No scuffing on cylinder
walls or pistonSeeEM-110, "CYLIN-
DER BLOCK".

GLOW CONTROL SYSTEM
EC-295
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EC
GLOW CONTROL SYSTEMPFP:25230
DescriptionEBS01KLM
SYSTEM DESCRIPTION
*: The output signal is sent from the ECM through CAN communication line.
When engine coolant temperature is more than approximately 80°C(176°F), the glow relay turns off.
When engine coolant temperature is lower than approximately 80°C(176°F):
lIgnition switch ON
After ignition switch has turned to ON, the glow relay turns ON for a certain period of time in relation to
engine coolant temperature, allowing current to flow through glow plug.
lCranking
The glow relay turns ON, allowing current to flow through glow plug.
lSta rti ng
After engine has started, current continues to flow through glow plug (after-glow mode) for a certain period
in relation to engine coolant temperature.
The glow indicator lamp turns ON for a certain period of time in relation to engine coolant temperature at the
time glow relay is turned ON.
COMPONENT DESCRIPTION
Glow Plug
The glow plug is provided with a ceramic heating element to obtain a
high-temperature resistance. It glows in response to a signal sent
from the ECM, allowing current to flow through the glow plug via the
glow relay.
Sensor Input Signal to ECM ECM Function Actuator
Crankshaft position sensor Engine speed
Glow controlGlow lamp*
Glow relay
Glow plugs Engine coolant temperature sensor Engine coolant temperature
SEF376Y

GLOW CONTROL SYSTEM
EC-301
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EC
15.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS01KLP
GLOW RELAY
Check continuity between glow relay terminals (3) and (5) under the
following conditions.
Operation takes less than 1 second.
GLOW PLUG
1. Remove glow plug connecting plate.
2. Check glow plug resistance.
NOTE:
lDo not bump glow plug heating element. If it is bumped,
replace glow plug with a new one.
lIf glow plug is dropped from a height of 10 cm (3.94 in) or
higher, replace with a new one.
lIf glow plug installation hole is contaminated with car-
bon, remove it with a reamer or suitable tool.
lHand-tighten glow plug by turning it two or three times,
then tighten using a tool to specified torque.
Removal and InstallationEBS01KLQ
GLOW PLUG
Refer toEM-41, "GLOW PLUG".
Conditions Continuity
12V direct current supply between ter-
minals (1) and (2)Ye s
No current supply No
PBIB0428E
Resistance: Approximately 0.8W[at 25°C(77°F)]
: 20.1 N-m (2.1 kg-m, 15 ft-lb)
MBIB1130E

PRECAUTIONS
EM-5
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Precautions For Liquid GasketEBS01E5N
REMOVAL OF LIQUID GASKET
lAfter removing the mounting bolts and nuts, separate the mating
surface using the seal cutter [SST] and remove the old liquid
gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.
lTap seal cutter to insert it, and then slide it by tapping on the
side as shown in the figure.
lIn areas where seal cutter [SST] is difficult to use, use plastic
hammer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as screwdriver is
used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove the old liquid gasket adhering to the liq-
uid gasket application surface and the mating surface.
lRemove the liquid gasket completely from the groove of the
liquid gasket application surface, mounting bolts and bolt
holes.
2. Wipe the liquid gasket application surface and the mating sur-
face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
3. Attach the liquid gasket tube to the tube presser [SST].
Use Genuine Liquid Gasket or equivalent.
4. Apply the liquid gasket without breaks to the specified location
with the specified dimensions.
lIf there is a groove for the liquid gasket application, apply the
liquid gasket to the groove.
lAs for the bolt holes, normally apply the liquid gasket inside
the holes. If specified, it should be applied outside the holes.
Make sure to read the text of this manual.
lWithin five minutes of liquid gasket application, install the mat-
ing component.
lIf the liquid gasket protrudes, wipe it off immediately.
lDo not retighten mounting bolts or nuts after the installation.
lAfter 30 minutes or more have passed from the installation, fill
the engine oil and engine coolant.
CAUTION:
If there are instructions in this manual, observe them.
PBIC0275E
PBIC0003E
PBIC2160E
SEM159F