2001 NISSAN X-TRAIL App sensor

HO2S2
EC-677
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HO2S2PFP:226A0
Component DescriptionEBS00NCV
The heated oxygen sensor 2, after three way catalyst, monitors the
oxygen level in the exhaust gas on each bank.
Even if switching characteristics of the heated oxygen sensor 1 are
shifted, the air-fuel ratio is controlled to stoichiometric, by the signal
from the heated oxygen sensor 2.
This sensor is made of ceramic zirconia. The zirconia generates volt-
age from approximately 1V in richer conditions to 0V in leaner condi-
tions.
Under normal conditions the heated oxygen sensor 2 is not used for
engine control operation.
CONSULT-II Reference Value in Data Monitor ModeEBS00NCW
Specification data are reference values.
ECM Terminals and Reference ValueEBS00NCX
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.
SEF327R
MONITOR ITEM CONDITION SPECIFICATION
HO2S2 (B1)
●Engine: After warming up
●Keeping the engine speed at
between 3,500 to 4,000 rpm for
one minutes and at idle for one
minute under no loadRevving engine from idle up to 3,000
rpm quickly.0 - 0.3V ←→ Approx. 0.6 - 1.0V
HO2S2 MNTR (B1)
●Engine: After warming up
●Keeping the engine speed at
between 3,500 to 4,000 rpm for
one minutes and at idle for one
minute under no loadRevving engine from idle up to 3,000
rpm quickly.LEAN←→ RICH
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
95 OR/BHeated oxygen sen-
sor 2[Engine is running]
●Warm-up condition
●Revving engine from idle up to 3,000 rpm quickly
after the following conditions are met.
●Keeping the engine speed between 3,500 and
4,000 rpm for one minute and at idle for one
minute under no load.0 - Approximately 1.0V

HO2S2
EC-681
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5. Select “FUEL INJECTION” in “ACTIVE TEST” mode, and select
“HO2S2 (B1)” as the monitor item with CONSULT-II.
6. Check “HO2S2 (B1)” at idle speed when adjusting “FUEL INJECTION” to ±25%.
“HO2S2 (B1)” should be above 0.68V at least once when the “FUEL INJECTION” is +25%.
“HO2S2 (B1)” should be below 0.50V at least once when the “FUEL INJECTION” is −25%.
CAUTION:
●Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m
(19.7 in) onto a hard surface such as a concrete floor; use a new one.
●Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor
Thread Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
Without CONSULT-II
1. Start engine and warm it up to the normal operating temperature.
2. Turn ignition switch “OFF” and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least one minute under no
load.
4. Let engine idle for one minute.
5. Set voltmeter probes between ECM terminal 95 (HO2S2 signal) and engine ground.
6. Check the voltage when revving up to 4,000 rpm under no load
at least 10 times.
(Depress and release accelerator pedal as soon as possible.)
The voltage should be above 0.68V at least once during this
procedure.
If the voltage is above 0.68V at step 4, step 5 is not neces-
sary.
7. Keep vehicle idling for 10 minutes, then check voltage. Or check
the voltage when coasting from 80 km/h (50 MPH) in “D” posi-
tion with “OD” OFF (A/T), 3rd gear position (M/T).
The voltage should be below 0.50V at least once during this
procedure.
8. If NG, replace heated oxygen sensor 2.
CAUTION:
●Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7
in) onto a hard surface such as a concrete floor; use a new one.
●Before installing new oxygen sensor, clean exhaust system threads using Oxygen Sensor Thread
Cleaner tool J-43897-18 or J-43897-12 and approved anti-seize lubricant.
SEF662Y
PBIB0551E
PBIB0550E

IVT CONTROL SOLENOID VALVE
EC-699
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IVT CONTROL SOLENOID VALVEPFP:23796
DescriptionEBS00ND9
SYSTEM DESCRIPTION
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing control solenoid
valve depending on driving status. This makes it possible to control the shut/open timing of the intake valve to
increase engine torque in low/mid speed range and output in high-speed range.
COMPONENT DESCRIPTION
Intake valve timing control solenoid valve is activated by ON/OFF
pulse duty (ratio) signals from the ECM.
The intake valve timing control solenoid valve changes the oil
amount and direction of flow through intake valve timing control unit
or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
CONSULT-II Reference Value in Data Monitor ModeEBS00NDA
Specification data are reference values.
Sensor Input signal to ECM function ECM Actuator
Crankshaft position sensor (POS) Engine speed
Intake valve
timing controlIntake valve timing control
solenoid valve Camshaft position sensor (PHASE) Engine speed and piston position
Engine coolant temperature sensor Engine coolant temperature
Wheel sensor Vehicle speed
PBIB0540E
PBIB0195E
MONITOR ITEM CONDITION SPECIFICATION
INT/V SOL (B1)
●Engine: After warming up
●Shift lever: N
●Air conditioner switch: OFF
●No-loadIdle 0% - 2%
When revving engine up to 2,000 rpm
quicklyApprox. 0% - 50%

EC-732
[QR25(WITHOUT EURO-OBD)]
FUEL PUMP CIRCUIT
FUEL PUMP
1. Disconnect fuel level sensor unit and fuel pump harness connector.
2. Check resistance between fuel level sensor unit and fuel pump
terminals 3 and 5.
CONDENSER
1. Turn ignition switch “OFF”.
2. Disconnect condenser harness connector.
3. Check resistance between condenser terminals 1 and 2.
Removal and InstallationEBS00NL1
FUEL PUMP
Refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" . Resistance: Approximately 1.0Ω [at 25°C (77°F)]
PBIB0658E
Resistance: Above 1MΩ [at 25°C (77°F)]
SEF124Y

REFRIGERANT PRESSURE SENSOR
EC-733
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REFRIGERANT PRESSURE SENSORPFP:92136
Component DescriptionEBS00NL2
The refrigerant pressure sensor is installed at the liquid tank of the
air conditioner system. The sensor uses an electrostatic volume
pressure transducer to convert refrigerant pressure to voltage. The
voltage signal is sent to ECM, and ECM controls cooling fan system.
ECM Terminals and Reference ValueEBS00NL3
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.
PBIB0503E
SEF099X
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
58 B Sensors' ground[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
65 RSensor's power sup-
ply[Ignition switch “ON”]Approximately 5V
83 R/LRefrigerant pressure
sensor[Engine is running]
●Warm-up condition
●Both A/C switch and blower switch are “ON”.
(Compressor operates.)1.0 - 4.0V

REFRIGERANT PRESSURE SENSOR
EC-735
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Diagnostic ProcedureEBS00NL5
1.CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION
1. Start engine and warm it up to normal operating temperature.
2. Turn A/C switch and blower switch “ON”.
3. Check voltage between ECM terminal 83 and ground with CON-
SULT-II or tester.
OK or NG
OK >>INSPECTION END
NG >> GO TO 2.
2.CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Turn A/C switch and blower switch “OFF”.
2. Stop engine.
3. Disconnect refrigerant pressure sensor harness connector.
4. Turn ignition switch “ON”.
5. Check voltage between refrigerant pressure sensor terminal 3
and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
●Harness connectors E61, F38
●Harness for open or short between ECM and refrigerant pressure sensor
>> Repair harness or connectors. Voltage: 1.0 - 4.0V
PBIB0659E
PBIB0503E
Voltage: Approximately 5V
SEF479Y

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-751
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureEBS00NLG
Idle Speed and Ignition TimingEBS00NLH
*1: Under the following conditions:
●Air conditioner switch: OFF
●Electric load: OFF (Lights, heater fan & rear window defogger)
●Steering wheel: Kept in straight-ahead position
*2: It refrigerant pressure is low, the idle speed may not be increased.
Calculated Load ValueEBS00NLI
Mass Air Flow SensorEBS00NLJ
*: Engine is warmed up to normal operating temperature and running under no-load.
Intake Air Temperature SensorEBS00NLK
Engine Coolant Temperature SensorEBS00NLL
Heated Oxygen Sensor 1 HeaterEBS00NLM
Heated Oxygen sensor 2 HeaterEBS00NLN
Crankshaft Position Sensor (POS)EBS00NLO
Refer to EC-556, "Component Inspection" .
Fuel pressure at idle kPa (bar, kg/cm2 , psi)Approximately 350 (3.5, 3.57, 51)
Target idle speed
No-load*1 (in “P” or N” position)A/T: 700±50 rpm
M/T: 700±50 rpm
Air conditioner: ONIn “P” or N” position
A/T: 700 rpm or more*
2
M/T: 750 rpm or more*2
Ignition timingIn “P” or N” position AT: 15°±5° BTDC
MT: 15°±5° BTDC
Calculated load value% (Using CONSULT-II or GST)
At idle10 - 35
At 2,500 rpm10 - 35
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle1.1 - 1.5*V
Mass air flow (Using CONSULT-II or GST)1.4 - 4.0 g·m/sec at idle*
4.0 - 10.0 g·m/sec at 2,500 rpm*
Temperature °C (°F) Resistance kΩ
25 (77)1.9 - 2.1
80 (176)0.31 - 0.37
Temperature °C (°F) Resistance kΩ
20 (68) 2.1 - 2.9
50 (122) 0.68 - 1.00
90 (194) 0.236 - 0.260
Resistance [at 25°C (77°F)] 2.3 - 4.3Ω
Resistance [at 25°C (77°F)] 2.3 - 4.3Ω

EC-752
[QR25(WITHOUT EURO-OBD)]
SERVICE DATA AND SPECIFICATIONS (SDS)
Camshaft Position Sensor (PHASE)
EBS00NLP
Refer to EC-562, "Component Inspection" .
Throttle Control MotorEBS00NLQ
InjectorEBS00NLR
Fuel PumpEBS00NLS
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 20°C (68°F)] 13.5 - 17.5Ω
Resistance [at 25°C (77°F)] Approximately 1.0Ω