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![NISSAN X-TRAIL 2001 Service Repair Manual POSITIVE CRANKCASE VENTILATION
EC-1115
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POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionEBS00N2R
SYSTEM DESCRIPTION
This system returns blow-by gas to NISSAN X-TRAIL 2001 Service Repair Manual POSITIVE CRANKCASE VENTILATION
EC-1115
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POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionEBS00N2R
SYSTEM DESCRIPTION
This system returns blow-by gas to](/manual-img/5/57405/w960_57405-1464.png)
POSITIVE CRANKCASE VENTILATION
EC-1115
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POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionEBS00N2R
SYSTEM DESCRIPTION
This system returns blow-by gas to the intake manifold.
The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intake
manifold. During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the
PCV valve. Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of venti-
lating air. The ventilating air is then drawn from the air inlet tubes into the crankcase. In this process the air
passes through the hose connecting air inlet tubes to rocker cover. Under full-throttle condition, the manifold
vacuum is insufficient to draw the blow-by flow through the valve. The flow goes through the hose connection
in the reverse direction.
On vehicles with an excessively high blow-by, the valve does not
meet the requirement. This is because some of the flow will go
through the hose connection to the air inlet tubes under all condi-
tions.
Component InspectionEBS00N2S
PCV (POSITIVE CRANKCASE VENTILATION) VALVE
With engine running at idle, remove PCV valve from rocker cover. A
properly working valve makes a hissing noise as air passes through
it. A strong vacuum should be felt immediately when a finger is
placed over valve inlet.
PBIB0492E
SEF559A
SEC137A
Page 1466 of 3833
EC-1116
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POSITIVE CRANKCASE VENTILATION
PCV VALVE VENTILATION HOSE
1. Check hoses and hose connections for leaks.
2. Disconnect all hoses and clean with compressed air. If any hose
cannot be freed of obstructions, replace.
S-ET277
Page 1467 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual SERVICE DATA AND SPECIFICATIONS (SDS)
EC-1117
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureEBS00N2T
Idle Speed and Ignition TimingEBS00N2 NISSAN X-TRAIL 2001 Service Repair Manual SERVICE DATA AND SPECIFICATIONS (SDS)
EC-1117
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureEBS00N2T
Idle Speed and Ignition TimingEBS00N2](/manual-img/5/57405/w960_57405-1466.png)
SERVICE DATA AND SPECIFICATIONS (SDS)
EC-1117
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureEBS00N2T
Idle Speed and Ignition TimingEBS00N2U
*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 ValueEBS00N2V
Mass Air Flow SensorEBS00N2W
*: Engine is warmed up to normal operating temperature and running under no-load.
Intake Air Temperature SensorEBS00N2X
Engine Coolant Temperature SensorEBS00N2Y
Heated Oxygen Sensor 1 HeaterEBS00N2Z
Heated Oxygen sensor 2 HeaterEBS00N30
Crankshaft Position Sensor (POS)EBS00N31
Refer to EC-961, "Component Inspection" .
Camshaft Position Sensor (PHASE)EBS00N32
Refer to EC-967, "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: 650±50 rpm
Air conditioner: ONIn “P” or N” position
725 rpm or more*
2
Ignition timingIn “P” or N” position AT: 16°±5° BTDC
MT: 14°±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
Page 1468 of 3833
EC-1118
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SERVICE DATA AND SPECIFICATIONS (SDS)
Throttle Control Motor
EBS00N33
InjectorEBS00N34
Fuel PumpEBS00N35
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
Page 1469 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual INDEX FOR DTC
EC-1119
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[QR20(WITHOUT EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS00N36
Check if the vehicle is a model with Euro-OBD (E-OBD) NISSAN X-TRAIL 2001 Service Repair Manual INDEX FOR DTC
EC-1119
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[QR20(WITHOUT EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS00N36
Check if the vehicle is a model with Euro-OBD (E-OBD)](/manual-img/5/57405/w960_57405-1468.png)
INDEX FOR DTC
EC-1119
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[QR20(WITHOUT EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS00N36
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type approval number” on the
identification plate. Refer to GI-43, "
IDENTIFICATION PLATE" .
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
EC-1199
.
×: Applicable —: Not applicable
*1: 1st trip DTC No. is the same as DTC No.
*2: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*3: When engine is running.
*4: When the fail-safe operation occurs, the MI illuminates.
*5: The trouble shooting for this DTC needs CONSULT-II.
*6: Except for M/T models without ESP/TCS/ABS system.
*7: For M/T models with ESP/TCS/ABS system.Items
(CONSULT-II screen terms)DTC*
1
Trip MI lighting up Reference page
CONSULT-II
ECM*2
APP SEN/CIRCUIT P0121 0121 1×EC-1222
BRAKE SW/CIRCUIT P1805 1805 2 —EC-1301
CAN COMM CIRCUIT*6U1000
1000*51×EC-1199
CKP SEN/CIRCUIT P0335 0335 2×EC-1240
CMP SEN/CIRCUIT P0340 0340 2×EC-1246
ECM P0605 0605 1 or 2× or —EC-1262
ECM BACK UP/CIRC P1065 1065 2×EC-1269
ECT SEN/CIRCUIT*4P0117 0117 1×EC-1209
ECT SEN/CIRCUIT*4P0118 0118 1×EC-1209
ENG OVER TEMP P1217 1217 1×EC-1287
ETC ACTR P1121 1121 1 or 2×EC-1273
ETC FUNCTION/CIRC P1122 1122 1×EC-1275
ETC MOT RLY/CIRC P1123 1123 1 or 2× or —EC-1281
HO2S1 (B1) P0134 0134 2×EC-1229
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-1235
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-1235
MAF SEN/CIRCUIT*4 P0102 0102 1×EC-1202
MAF SEN/CIRCUIT*4 P0103 0103 1×EC-1202
MIL/CIRC P0650 0650 2 —EC-1265
NATS MALFUNCTIONP1610 -
P16151610 - 1615 2 —EC-1143
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC
Flashing*3—
Flashing*3EC-1144
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
PW ST P SEN/CIRC P0550 0550 2 —EC-1257
TCS/CIRC*7P1212 1212 2 —EC-1286
THRTL POS SEN/CIRC*4P0120 0120 1 or 2× or —EC-1214
VEH SPEED SEN/CIRC P0500 0500 2×EC-1252
Page 1470 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1120
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INDEX FOR DTC
DTC No. Index
EBS00N37
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type approval number” on the
identification plate. NISSAN X-TRAIL 2001 Service Repair Manual EC-1120
[QR20(WITHOUT EURO-OBD)]
INDEX FOR DTC
DTC No. Index
EBS00N37
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type approval number” on the
identification plate.](/manual-img/5/57405/w960_57405-1469.png)
EC-1120
[QR20(WITHOUT EURO-OBD)]
INDEX FOR DTC
DTC No. Index
EBS00N37
Check if the vehicle is a model with Euro-OBD (E-OBD) system or not by the “Type approval number” on the
identification plate. Refer to GI-43, "
IDENTIFICATION PLATE" .
NOTE:
If DTC U1000 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000. Refer to
EC-1199
.
×: Applicable —: Not applicable
*1: 1st trip DTC No. is the same as DTC No.
*2: In Diagnostic Test Mode II (Self-diagnostic results), these numbers are controlled by NISSAN.
*3: When engine is running.
*4: When the fail-safe operation occurs, the MI illuminates.
*5: The trouble shooting for this DTC needs CONSULT-II.
*6: Except for M/T models without ESP/TCS/ABS system.
*7: For M/T models with ESP/TCS/ABS system. DTC*
1Items
(CONSULT-II screen terms)Trip MI lighting up Reference page
CONSULT-II
ECM*
2
No DTC
Flashing*3NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
Flashing*3EC-1144
U1000
1000*5CAN COMM CIRCUIT*61×EC-1199
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.———
P0102 0102
MAF SEN/CIRCUIT*
41×EC-1202
P0103 0103
MAF SEN/CIRCUIT*41×EC-1202
P 0 11 7 0 11 7
ECT SEN/CIRCUIT*41×EC-1209
P 0 11 8 0 11 8
ECT SEN/CIRCUIT*41×EC-1209
P0120 0120
THRTL POS SEN/CIRC*41 or 2× or —EC-1214
P0121 0121 APP SEN/CIRCUIT 1×EC-1222
P0134 0134 HO2S1 (B1) 2×EC-1229
P0327 0327 KNOCK SEN/CIRC-B1 2 —EC-1235
P0328 0328 KNOCK SEN/CIRC-B1 2 —EC-1235
P0335 0335 CKP SEN/CIRCUIT 2×EC-1240
P0340 0340 CMP SEN/CIRCUIT 2×EC-1246
P0500 0500 VEH SPEED SEN/CIRC 2×EC-1252
P0550 0550 PW ST P SEN/CIRC 2 —EC-1257
P0605 0605 ECM 1 or 2× or —EC-1262
P0650 0650 MIL/CIRC 2 —EC-1265
P1065 1065 ECM BACK UP/CIRC 2×EC-1269
P1121 1121 ETC ACTR 1 or 2×EC-1273
P1122 1122 ETC FUNCTION/CIRC 1×EC-1275
P1123 1123 ETC MOT RLY/CIRC 1 or 2× or —EC-1281
P1212 1212
TCS/CIRC*72—EC-1286
P1217 1217 ENG OVER TEMP 1×EC-1287
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 —EC-1143
P1805 1805 BRAKE SW/CIRCUIT 2 —EC-1301
Page 1471 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual PRECAUTIONS
EC-1121
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS00NB NISSAN X-TRAIL 2001 Service Repair Manual PRECAUTIONS
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS00NB](/manual-img/5/57405/w960_57405-1470.png)
PRECAUTIONS
EC-1121
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EBS00NBS
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:
●To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
●Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
●Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harness connec-
tors.
On Board Diagnostic (OBD) System of Engine and A/TEBS00N39
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:
●Be sure to turn the ignition switch OFF and disconnect the negative battery terminal before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MI to light up.
●Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
●Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-68, "
HAR-
NESS CONNECTOR" .
●Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MI to light up due to the short circuit.
●Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MI to light up due to the malfunction of the fuel injection system, etc.
●Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM and
TCM (Transmission control module) before returning the vehicle to the customer.
PrecautionEBS00N3A
●Always use a 12 volt battery as power source.
●Do not attempt to disconnect battery cables while engine is
running.
●Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery terminal. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned off.
●Before removing parts, turn ignition switch OFF and then
disconnect battery ground cable.
SEF289H
Page 1472 of 3833
![NISSAN X-TRAIL 2001 Service Repair Manual EC-1122
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PRECAUTIONS
●Do not disassemble ECM.
●If a battery terminal is disconnected, the memory will return
to the ECM value.
The ECM will now start to self-control NISSAN X-TRAIL 2001 Service Repair Manual EC-1122
[QR20(WITHOUT EURO-OBD)]
PRECAUTIONS
●Do not disassemble ECM.
●If a battery terminal is disconnected, the memory will return
to the ECM value.
The ECM will now start to self-control](/manual-img/5/57405/w960_57405-1471.png)
EC-1122
[QR20(WITHOUT EURO-OBD)]
PRECAUTIONS
●Do not disassemble ECM.
●If a battery terminal is disconnected, the memory will return
to the ECM value.
The ECM will now start to self-control at its initial value.
Engine operation can vary slightly when the terminal is dis-
connected. However, this is not an indication of a malfunc-
tion. Do not replace parts because of a slight variation.
●When connecting ECM harness connector, fasten it
securely with a lever as far as it will go as shown at right.
●When connecting or disconnecting pin connectors into or
from ECM, take care not to damage pin terminals (bend or
break).
Make sure that there are not any bends or breaks on ECM
pin terminal, when connecting pin connectors.
●Securely connect ECM harness connectors.
A poor connection can cause an extremely high (surge)
voltage to develop in coil and condenser, thus resulting in
damage to ICs.
●Keep engine control system harness at least 10 cm (4 in)
away from adjacent harness, to prevent engine control sys-
tem malfunctions due to receiving external noise, degraded
operation of ICs, etc.
●Keep engine control system parts and harness dry.
●Before replacing ECM, perform “ECM Terminals and Refer-
ence Value” inspection and make sure ECM functions prop-
erly. Refer to EC-1166
.
●Handle mass air flow sensor carefully to avoid damage.
●Do not disassemble mass air flow sensor.
●Do not clean mass air flow sensor with any type of deter-
gent.
●Do not disassemble electric throttle control actuator.
●Even a slight leak in the air intake system can cause seri-
ous incidents.
●Do not shock or jar the camshaft position sensor (PHASE),
crankshaft position sensor (POS).
SEF707Y
SEF908W
PBIB0090E
MEF040D