engine NISSAN NAVARA 2005 Repair Workshop Manual

DTC P0201 - P0204 FUEL INJECTOR
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EC
DTC P0201 - P0204 FUEL INJECTORPFP:16600
Component DescriptionEBS01KFB
The fuel injector is a small, precise solenoid valve. When the ECM
supplies a ground to the fuel injector circuit, the coil in the fuel injec-
tor is energized. The energized coil pulls the needle valve back and
allows fuel to flow through the fuel injector into the cylinder. The
amount of fuel injected depends upon the injection pulse duration.
Pulse duration is the length of time the fuel injector remains open.
The ECM controls the injection pulse duration based on engine fuel
needs.
CONSULT-II Reference Value in Data Monitor ModeEBS01KFC
Specification data are reference values.
ECM Terminals and Reference ValueEBS01KFD
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
PBIB0465E
MONITOR ITEM CONDITION SPECIFICATION
MAIN INJ WID
lEngine: After warming up
lShift lever: P or N (A/T), Neutral (M/T)
lIdle speedNo load 0.50 - 0.70 msec
Blower fan switch: ON
Rear window defogger switch: ON0.50 - 0.80 msec
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
4
5V
GFuel injector power supply
(For cylinder No. 1 and 4)
Fuel injector power supply
(For cylinder No. 2 and 3)[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 7.5V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 8.0V
MBIB1295E
MBIB1296E

EC-126
DTC P0201 - P0204 FUEL INJECTOR
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS01KFE
21
22
23
24G
P
W
WFuel injector No. 2
Fuel injector No. 2
Fuel injector No. 3
Fuel injector No. 3[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 7.5V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 8.0V
40
41
42
43W
GR
W
BFuel injector No. 4
Fuel injector No. 4
Fuel injector No. 1
Fuel injector No. 1[Engine is running]
lWarm-up condition
lIdle speed
NOTE:
The pulse cycle changes depending on rpm
at idleApproximately 7.5V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpmApproximately 8.0V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage and Pulse Signal)
MBIB1297E
MBIB1298E
MBIB1297E
MBIB1298E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0201
0201No. 1 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 1 cylinder fuel injector.
lHarness or connectors
(The fuel injector circuit is open.)
lFuel injector P0202
0202No. 2 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 2 cylinder fuel injector.
P0203
0203No. 3 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 3 cylinder fuel injector.
P0204
0204No. 4 cylinder fuel injector
circuit openAn improper voltage signal is sent to ECM
through No. 4 cylinder fuel injector.

DTC P0201 - P0204 FUEL INJECTOR
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DTC Confirmation ProcedureEBS01KFF
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION
Before performing the following procedure, confirm the ambient temperature is more than -20°C (-4°F).
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for at least 5 seconds.
4. If DTC is detected, go toEC-129, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Start engine and let it idle for at least 5 seconds.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
4. If DTC is detected, go toEC-129, "
Diagnostic Procedure".
SEF817Y

EC-132
DTC P0217 ENGINE OVER TEMPERATURE
DTC P0217 ENGINE OVER TEMPERATURE
PFP:21481
DescriptionEBS01KFK
SYSTEM DESCRIPTION
NOTE:
If DTC P0217 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000. Refer to
EC-79, "
DTC U1000 CAN COMMUNICATION LINE".
Cooling Fan Control
*: This signal is sent to ECM through CAN communication line.
The ECM controls the cooling fan corresponding to the vehicle speed, engine coolant temperature, refrigerant
pressure, and air conditioner ON signal. The control system has 3-step control [HIGH/LOW/OFF].
Cooling Fan Operation
Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
COMPONENT DESCRIPTION
Cooling Fan Motor
The cooling fan operates at each speed when the current flows in the cooling fan motor as follows.
Sensor Input Signal to ECM ECM function Actuator
Wheel sensor Vehicle speed*
Cooling fan
controlIPDM E/R
(Cooling fan relays) Engine coolant temperature sensor Engine coolant temperature
Air conditioner switch Air conditioner ON signal*
Refrigerant pressure sensor Refrigerant pressure
MBIB1266E
Cooling fan speedCooling fan relay
12
Stop (OFF) OFF OFF
Low (LOW) ON OFF
High (HI) OFF ON
Cooling fan speedCooling fan motor terminals
(+) (-)
Low (LOW) 1 3
High (HI) 2 3

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-134
DTC P0217 ENGINE OVER TEMPERATURE
WITH CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go toEC-137,
"Diagnostic Procedure".
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go toEC-137,
"Diagnostic Procedure".
3. Turn ignition switch ON.
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
5. If the results are NG, go toEC-137, "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go toEC-137,
"Diagnostic Procedure".
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go toEC-137,
"Diagnostic Procedure".
3. Perform IPDM E/R auto active test and check cooling fan motors operation, refer toPG-19, "
Auto Active
Te s t".
4. If NG, go toEC-137, "
Diagnostic Procedure".
SEF621W
SEF111X
SEF621W

DTC P0217 ENGINE OVER TEMPERATURE
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EC
Wiring DiagramEBS01KFO
MBWA1332E

EC-136
DTC P0217 ENGINE OVER TEMPERATURE
MBWA1068E

DTC P0217 ENGINE OVER TEMPERATURE
EC-137
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EC
Diagnostic ProcedureEBS01KFP
1.CHECK COOLING FAN (CRANKSHAFT DRIVEN) OPERATION
1. Start engine and let it idle.
2. Make sure that cooling fan (crankshaft driven) operates normally.
OK or NG
OK (With CONSULT-II)>>GO TO 2.
OK (Without CONSULT-II)>>GO TO 3.
NG >> Check cooling fan (crankshaft driven). Refer toCO-19, "
Removal and Installation".
2.CHECK COOLING FAN OPERATION
With CONSULT-II
1. Start engine and let it idle.
2. Select “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
3. Make sure that cooling fan operate at each speed (LOW/HI).
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go toEC-139, "
PRO-
CEDURE A".)
3.CHECK COOLING FAN OPERATION
Without CONSULT-II
1. Perform IPDM E/R auto active test and check cooling fan motors operation, refer toPG-19, "
Auto Active
Te s t".
2. Make sure that cooling fan operate at each speed (Low/High).
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go toEC-139, "
PROCEDURE A".)
4.CHECK COOLING SYSTEM FOR LEAK
Apply pressure to the cooling system with a tester, and check if the
pressure drops. Refer toCO-7, "
CHECKING RADIATOR SYSTEM
FOR LEAKS".
lReservoir tank (1)
lSST (EG17650301): A
CAUTION:
Higher than the specified pressure may cause radiator damage.
Pressure should not drop.
OK or NG
OK >> GO TO 5.
NG >> Check the following for leak. Refer toCO-7, "
CHECK-
ING RADIATOR SYSTEM FOR LEAKS".
lHose
lRadiator
lRadiator cap
lWater pump
lReservoir tank
SEF784Z
MBIB1204E

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