engine NISSAN NAVARA 2005 Repair Workshop Manual

DTC P0102, P0103 MAF SENSOR
EC-97
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EC
4. Select “MAS AIR/FL SE” and check indication under the follow-
ing conditions.
*: Check for linear voltage rise in response to engine being increased to about
4,000 rpm.
5. If the voltage is out of specification, proceed the following.
a. Check for the cause of uneven air flow through mass air flow sensor. Refer to following.
lCrushed air ducts
lMalfunctioning seal of air cleaner element
lUneven dirt of air cleaner element
lImproper specification of intake air system parts
b. If NG, repair or replace malfunctioning part and perform step 2 to 4 again.
IfOK,gotonextstep.
6. Turn ignition switch OFF.
7. Disconnect mass air flow sensor harness connector and reconnect it again.
8. Performstep2to4again.
9. If NG, clean or replace mass air flow sensor.
Without CONSULT-II
1. Reconnect all harness connectors disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminal 54 (Mass air flow sensor
signal) and ground.
*: Check for linear voltage rise in response to engine being increased to about
4,000 rpm.
4. If the voltage is out of specification, proceed the following.
a. Check for the cause of uneven air flow through mass air flow sensor. Refer to following.
lCrushed air ducts
lMalfunctioning seal of air cleaner element
lUneven dirt of air cleaner element
lImproper specification of intake air system parts
b. If NG, repair or replace malfunctioning part and perform step 2 to 3 again.
IfOK,gotonextstep.
5. Turn ignition switch OFF.
6. Disconnect mass air flow sensor harness connector and reconnect it again.
7. Perform step 2 and 3 again.
8. If NG, clean or replace mass air flow sensor.
Removal and InstallationEBS01KE3
MASS AIR FLOW SENSOR
Refer toEM-15, "AIR CLEANER AND AIR DUCT".
Condition MAS AIR/FL SE (V)
Ignition switch ON (Engine stopped.) Approx. 0.4
Idle (Engine is warmed-up to normal
operating temperature.)1.3 - 1.7
Idle to about 4,000 rpm 1.3 - 1.7 to Approx. 4.0*
MBIB1240E
Condition Voltage V
Ignition switch ON (Engine stopped.) Approx. 0.7
Idle (Engine is warmed-up to normal
operating temperature.)1.6 - 2.0
Idle to about 4,000 rpm 1.6 - 2.0 to Approx. 4.3*
SEF865T

DTC P0117, P0118 ECT SENSOR
EC-103
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DTC P0117, P0118 ECT SENSORPFP:22630
DescriptionEBS01KEB
The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine coolant
temperature input. The sensor uses a thermistor which is sensitive to
the change in temperature. The electrical resistance of the ther-
mistor decreases as temperature increases.

*: This data is reference values and is measured between ECM terminal 51 (Engine
coolant temperature sensor) and ground.
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.
On Board Diagnosis LogicEBS01KEC
The MI will not light up for these self-diagnoses.
DTC Confirmation ProcedureEBS01KED
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go toEC-106, "
Diagnostic Procedure".
SEF594K
Engine coolant tempera-
ture°C(°F)Voltage* (V) Resistance (kW)
-10 (14) 4.7 7.0 - 11.4
20 (68) 3.8 2.1 - 2.9
50 (122) 2.6 0.68 - 1.00
90 (194) 1.3 0.236 - 0.260
SEF012P
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0117
0117Engine coolant temperature
sensor circuit low inputAn excessively low voltage from the sensor is
sent to ECM.
lHarness or connectors
(The sensor circuit is open or
shorted.)
lEngine coolant temperature sensor P0118
0118Engine coolant temperature
sensor circuit high inputAn excessively high voltage from the sensor is
sent to ECM.
SEF817Y

EC-106
DTC P0117, P0118 ECT SENSOR
Diagnostic Procedure
EBS01KEF
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.
Refer toEC-78, "
Ground Inspection".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK ECT SENSOR POWER SUPPLY CIRCUIT
1. Disconnect engine coolant temperature sensor (1) harness con-
nector.
–: Vehicle front
–EGR volume control valve (2)
2. Turn ignition switch ON.
3. Check voltage between ECT sensor terminal 1 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connectors.
: Vehicle front
1. Body ground E21 2. ECM 3. Body ground E41
4. A/C high-pressure service valve 5. ABS actuator and electric unit
(control unit)6. Body ground E61
MBIB1218E
MBIB1230E
Voltage: Approximately 5.3V
SEF193Z

DTC P0117, P0118 ECT SENSOR
EC-107
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3.CHECK ECT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between ECT sensor terminal 2 and ECM terminal 70. Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer toEC-107, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace engine coolant temperature sensor.
5.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS01KEG
ENGINE COOLANT TEMPERATURE SENSOR
1. Check resistance between engine coolant temperature sensor
terminals 1 and 2 as shown in the figure.

2. If NG, replace engine coolant temperature sensor.
Removal and InstallationEBS01KEH
ENGINE COOLANT TEMPERATURE SENSOR
Refer toEM-92, "CYLINDER HEAD". Continuity should exist.
PBIB2005E
Engine coolant temperature°C(°F) Resistance kW
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
SEF012P

EC-108
DTC P0122, P0123 APP SENSOR
DTC P0122, P0123 APP SENSOR
PFP:18002
DescriptionEBS01KEI
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensors detect the accelera-
tor pedal position and sends a signal to the ECM. The ECM uses the
signal to determine the amount of fuel to be injected.
CONSULT-II Reference Value in Data Monitor ModeEBS01KEJ
Specification data are reference values.
*: This signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.
ECM Terminals and Reference ValueEBS01KEK
Specification data are reference values and are measured between each terminal and ground.
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.
PBIB1741E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL POS SEN*
lIgnition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.65 - 0.87V
Accelerator pedal: Fully depressed More than 4.3V
ACCEL SEN 2*
lIgnition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.28 - 0.48V
Accelerator pedal: Fully depressed More than 2.0V
TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
82 WAccelerator pedal position
sensor 1 power supply[Ignition switch ON]Approximately 5.3V
83 RAccelerator pedal position
sensor 1[Ignition switch ON]
lEngine stopped
lAccelerator pedal: Fully released0.95 - 1.17V
[Ignition switch ON]
lEngine stopped
lAccelerator pedal: Fully depressedMore than 4.6V
84 BAccelerator pedal position
sensor 1 ground[Ignition switch ON]Approximately 0.3V
85 —Sensor ground
(Accelerator pedal posi-
tion sensor shield circuit)[Ignition switch ON]Approximately 0.3V
90 WAccelerator pedal position
sensor 2 power supply[Ignition switch ON]Approximately 5.3V

DTC P0122, P0123 APP SENSOR
EC-109
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On Board Diagnosis LogicEBS01KEL
The MI will not light up for these self-diagnoses.
NOTE:
If DTC P0122 or P0123 is displayed with DTC P0642 or P0643, first perform the trouble diagnosis for
DTC P0642 or P0643. Refer toEC-222, "
DTC P0642, P0643 SENSOR POWER SUPPLY".
DTC Confirmation ProcedureEBS01KEM
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.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Wait at least 5 seconds.
4. If DTC is detected, go toE C - 111 , "
Diagnostic Procedure".
WITHOUT CONSULT-II
1. Turn ignition switch ON and wait 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 toE C - 111 , "
Diagnostic Procedure".
91 RAccelerator pedal position
sensor 2[Ignition switch ON]
lEngine stopped
lAccelerator pedal: Fully released0.58 - 0.78V
[Ignition switch ON]
lEngine stopped
lAccelerator pedal: Fully depressedMore than 2.3V
92 BAccelerator pedal position
sensor 2 ground[Ignition switch ON]Approximately 0.3V TERMI-
NAL
NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0122
0122Accelerator pedal position
sensor 1 circuit low inputAn excessively low voltage from the APP sensor
1 is sent to ECM.
lHarness or connectors
(The APP sensor 1 circuit is open or
shorted.)
lAccelerator pedal position sensor
(Accelerator pedal position sensor 1) P0123
0123Accelerator pedal position
sensor 1 circuit high inputAn excessively high voltage from the APP sensor
1 is sent to ECM.
SEF817Y

DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSOR
EC-113
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DTC P0182, P0183 FUEL PUMP TEMPERATURE SENSORPFP:16700
DescriptionEBS01KER
Fuel pump temperature sensor (1) is built in the fuel pump (2). The
sensor detects the fuel temperature in the fuel pump and calibrates
the fuel injection amount change by fuel temperature.
CONSULT-II Reference Value in Data Monitor ModeEBS01KES
Specification data are reference values.
ECM Terminals and Reference ValueEBS01KET
Specification data are reference values and are measured between each terminal and ground.
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.
On Board Diagnosis LogicEBS01KEU
The MI will not light up for these self-diagnoses.
MBIB1389E
MONITOR ITEM CONDITION SPECIFICATION
FUEL TEMP SEN
lEngine: After warming up More than 40°C(104°F)
TERMI-
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NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
50 Y Fuel pump temperature sensor[Engine is running]
lWarm-up conditionApproximately 0.3 - 5.3V
Output voltage varies with fuel
pump temperature
69 BFuel pump temperature sensor
ground[Ignition switch ON]Approximately 0.3V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0182
0182Fuel pump temperature
sensor circuit low inputAn excessively low voltage from the sensor is
sent to ECM.
lHarness or connectors
(The sensor circuit is open or
shorted.)
lFuel pump temperature sensor P0183
0183Fuel pump temperature
sensor circuit high inputAn excessively high voltage from the sensor is
sent to ECM.

EC-118
DTC P0192, P0193 FRP SENSOR
DTC P0192, P0193 FRP SENSOR
PFP:16638
DescriptionEBS01KEZ
The fuel rail pressure (FRP) sensor is placed to the fuel rail. It measures the fuel pressure in the fuel rail. The
sensor sends voltage signal to the ECM. As the pressure increases, the voltage rises.
The ECM controls the fuel pressure in the fuel rail by the inlet throttling device. The ECM uses the signal from
fuel rail pressure sensor as a feedback signal.
CONSULT-II Reference Value in Data Monitor ModeEBS01KF0
Specification data are reference values.
ECM Terminals and Reference ValueEBS01KF1
Specification data are reference values and are measured between each terminal and ground.
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.
On Board Diagnosis LogicEBS01KF2
The MI will not light up for these self-diagnoses.
NOTE:
If DTC P0192 or P0193 is displayed with DTC P0652 or P0653, first perform the trouble diagnosis for
DTC P0652 or P0653. Refer toEC-227, "
DTC P0652, P0653 SENSOR POWER SUPPLY".
MONITOR CONDITION SPECIFICATOIN
ACT CR PRESS
lEngine: After warming up
lAir conditioner switch: OFF
lShift lever: P or N (A/T), Neutral (M/T)
lNo loadIdle 25 - 35 MPa
2,000 rpm 40 - 50 MPa
TERMI-
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NO.WIRE
COLORITEM CONDITIONDATA
(DC Voltage)
48
49L
BFuel rail pressure sensor[Engine is running]
lWarm-up condition
lIdle speed1.7 - 2.0V
[Engine is running]
lWarm-up condition
lEngine speed: 2,000 rpm2.0 - 2.3V
63 RFuel rail pressure sensor power
supply[Ignition switch ON]Approximately 5.3V
67 —Sensor ground
(Sensor shield circuit)[Ignition switch ON]Approximately 0.3V
68 W Fuel rail pressure sensor ground[Ignition switch ON]Approximately 0.3V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0192
0192Fuel rail pressure sensor
circuit low inputAn excessively low voltage from the sensor is
sent to ECM.
lHarness or connectors
(The sensor circuit is open or
shorted.)
lFuel rail temperature sensor P0193
0193Fuel rail pressure sensor
circuit high inputAn excessively high voltage from the sensor is
sent to ECM.

EC-122
DTC P0192, P0193 FRP SENSOR
3.CHECK FUEL RAIL PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between fuel rail pressure sensor terminal 3 and ECM terminal 68.
Refer to Wiring Diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK FUEL RAIL PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminals 48, 49 and fuel rail pressure sensor terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness connectors.
5.CHECK FUEL RAIL PRESSURE SENSOR
Refer toEC-122, "
Component Inspection".
OK or NG
OK >> GO TO 6.
NG >> Replace fuel rail.
6.CHECK INTERMITTENT INCIDENT
Refer toEC-70, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS01KF6
FUEL RAIL PRESSURE SENSOR
1. Reconnect harness connector disconnected.
2. Start engine and warm it up to normal operating temperature.
3. Check voltage between ECM terminals 48, 49 (fuel rail pressure
sensor signal) and ground under the following conditions.
4. If the voltage is out of specification, disconnect fuel rail pressure
sensor harness connector and connect it again. Then repeat
above check.
5. If NG, replace fuel rail.
Removal and InstallationEBS01KF7
FUEL RAIL
Refer toEM-44, "INJECTION TUBE AND FUEL INJECTOR". Continuity should exist.
Continuity should exist.
Condition Voltage V
Idle 1.7 - 2.0
2,000 rpm 2.0 - 2.3
MBIB0613E

DTC P0200 FUEL INJECTOR
EC-123
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DTC P0200 FUEL INJECTORPFP:16600
On Board Diagnosis LogicEBS01KF8
DTC Confirmation ProcedureEBS01KF9
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.
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-123, "
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-123, "
Diagnostic Procedure".
Diagnostic ProcedureEBS01KFA
1.INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.
4. PerformEC-123, "
DTC Confirmation Procedure", again.
5. Is DTC P0200 displayed again?
Without CONSULT-II
1. Turn ignition switch ON.
2. Erase the Diagnostic Test Mode II (Self-diagnostic results) memory. Refer toEC-27
.
3. PerformEC-123, "
DTC Confirmation Procedure", again.
4. Is DTC 0200 displayed again?
Ye s o r N o
Ye s > > G O T O 2 .
No >>INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0200
0200Fuel injector power supply
circuitECM detects a voltage of power source for the
fuel injector is excessively high or low.
lECM
SEF817Y