NISSAN X-TRAIL 2005 Service Repair Manual

POSITIVE CRANKCASE VENTILATION
EC-527
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POSITIVE CRANKCASE VENTILATIONPFP:11810
DescriptionEBS010VZ
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 InspectionEBS010W0
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
PBIB1588E
PBIB1589E

EC-528
[QR (WITH EURO-OBD)]
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

AUTOMATIC SPEED CONTROL DEVICE (ASCD)
EC-529
[QR (WITH EURO-OBD)]
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AUTOMATIC SPEED CONTROL DEVICE (ASCD)PFP:18930
System DescriptionEBS01FAX
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric throttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indicator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press ASCD MAIN switch. (The CRUISE indicator in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET indicator in combination meter illuminates.)
ACCEL OPERATION
If the RESUME/ACCELERATE switch is pressed during cruise control driving, increase the vehicle speed until
the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.

CANCEL switch is pressed

More than 2 switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)

Brake pedal is depressed

Clutch pedal is depressed or gear position is changed to the neutral position (M/T models)

Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed

ESP/TCS system is operated
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.

Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.

Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
Sensor Input signal to ECM ECM function Actuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator Stop lamp switch Brake pedal operation
ASCD clutch switch (M/T) Clutch pedal operation
ASCD steering switch ASCD steering switch operation
Park/Neutral position (PNP)
switchGear position
wheel sensor* Vehicle speed

EC-530
[QR (WITH EURO-OBD)]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)

COAST OPERATION
When the SET/COAST switch is pressed during cruise control driving, decrease vehicle set speed until the
switch is released. And then ASCD will keep the new set speed.
RESUME OPERATION
When the RESUME/ACCELERATE switch is pressed after cancel operation other than pressing MAIN switch
is performed, vehicle speed will return to last set speed. To resume vehicle set speed, vehicle condition must
meet following conditions.

Brake pedal is fully released

Clutch pedal is fully released (M/T models)

A/T selector lever is in other than P and N position (A/T models)

Vehicle speed is greater than 40 km/h (25 MPH) and less than 144 km/h (89 MPH)
Component DescriptionEBS01FAY
ASCD STEERING SWITCH
Refer to EC-377 .
ASCD BRAKE SWITCH
Refer to EC-387 and EC-506 .
ASCD CLUTCH SWITCH
Refer to EC-387 and EC-506
STOP LAMP SWITCH
Refer to EC-387 , EC-405 and EC-506 .
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EC-294 , EC-296 , EC-306 and EC-314 .
ASCD INDICATOR
Refer to EC-514 .

SERVICE DATA AND SPECIFICATIONS (SDS)
EC-531
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureEBS010W1
Idle Speed and Ignition TimingEBS010W2
*: Under the following conditions:

Air conditioner switch: OFF

Electric load: OFF (Lights, heater fan & rear window defogger)

Steering wheel: Kept in straight-ahead position
Calculated Load ValueEBS010W3
Mass Air Flow SensorEBS010W4
*: Engine is warmed up to normal operating temperature and running under no-load.
Intake Air Temperature SensorEBS010W5
Engine Coolant Temperature SensorEBS010W6
Heated Oxygen Sensor 1 HeaterEBS010W7
Fuel pressure at idle
Approximately 350 kPa (3.5bar, 3.57kg/cm2 , 51psi)
Target idle speedQR20DEM/T No load* (in Neutral position) 650±50 rpm
A/T No load* (in P or N position)
700±50 rpm
QR25DEM/T No load* (in Neutral position)
A/T No load* (in P or N position)
Air conditioner: ONQR20DEM/T In Neutral position
725 rpm or more
A/T In P or N position
QR25DEM/T In Neutral position 750 rpm or more
A/T In P or N position 700 rpm or more
Ignition timingQR20DEM/T In Neutral position
15°±5° BTDC A/T In P or N position
QR25DEM/T In Neutral position
A/T In P or N position
Calculated load value% (Using CONSULT-II or GST)
At idle10 - 35
At 2,500 rpm10 - 35
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle0.7 - 1.1*V (QR20DE)
0.8 - 1.2*V (QR25DE)
Mass air flow (Using CONSULT-II or GST)1.0 - 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)1.800 - 2.200
80 (176)0.283 - 0.359
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)] 3.3 - 4.0Ω

EC-532
[QR (WITH EURO-OBD)]
SERVICE DATA AND SPECIFICATIONS (SDS)

Heated Oxygen sensor 2 HeaterEBS010W8
Crankshaft Position Sensor (POS)EBS010W9
Refer to EC-255, "Component Inspection" .
Camshaft Position Sensor (PHASE)EBS010WA
Refer to EC-262, "Component Inspection" .
Throttle Control MotorEBS010WB
InjectorEBS010WC
Fuel PumpEBS010WD
Resistance [at 25°C (77°F)] 5.0 - 7.0Ω
Resistance [at 25°C (77°F)] Approximately 1 - 15Ω
Resistance [at 10 - 60°C (50 - 140°F)] 13.5 - 17.5Ω
Resistance [at 25°C (77°F)] Approximately 0.2 - 5.0Ω

INDEX FOR DTC
EC-533
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[QR (WITHOUT EURO-OBD)]INDEX FOR DTCPFP:00024
Alphabetical IndexEBS010WE
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-46, "
IDENTIFICATION PLATE" .
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-633, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
Items
(CONSULT-II screen terms)DTC*1
TripMI lighting
upReference page
CONSULT-II*2ECM*3
APP SEN 1/CIRC P2122 2122 1×EC-815
APP SEN 1/CIRC P2123 2123 1×EC-815
APP SEN 2/CIRC P2127 2127 1×EC-822
APP SEN 2/CIRC P2128 2128 1×EC-822
APP SENSOR P2138 2138 1×EC-838
ASCD BRAKE SW*7P1572 1572 1 —EC-790
ASCD SW *7P1564 1564 1 —EC-780
ASCD VHL SPD SEN*7P1574 1574 1 —EC-800
BRAKE SW/CIRCUIT P1805 1805 1×EC-809
CAN COMM CIRCUIT U1000
1000*52—EC-633
CAN COMM CIRCUIT U1001
1001*52—EC-633
CKP SEN/CIRCUIT P0335 0335 2×EC-693
CMP SEN/CIRC-B1 P0340 0340 2×EC-701
CTP LEARNING P1225 1225 2 —EC-771
CTP LEARNING P1226 1226 2 —EC-773
ECM P0605 0605 1 or 2× or —EC-716
ECM BACK UP/CIRCUIT P1065 1065 2×EC-719
ECT SEN/CIRC P0117 0117 2×EC-652
ECT SEN/CIRC P0118 0118 2×EC-652
ENG OVER TEMP P1217 1217 1×EC-755
ETC ACTR P1121 1121 1×EC-723
ETC FUNCTION/CIRC P1122 1122 1×EC-726
ETC MOT P1128 1128 1×EC-745
ETC MOT PWR P1124 1124 1×EC-737
ETC MOT PWR P1126 1126 1×EC-737
HO2S1 (B1) P0132 0132 2×EC-666
HO2S1 (B1) P0134 0134 2×EC-673
INT/V TIM CONT-B1 P0011 0011 2 —EC-636
KNOCK SEN/CIRC-B1 P0327 0327 2 —EC-688
KNOCK SEN/CIRC-B1 P0328 0328 2 —EC-688
MAF SEN/CIRCUIT P0102 0102 1×EC-644
MAF SEN/CIRCUIT P0103 0103 1×EC-644
NATS MALFUNCTION P1610 - P1615 1610 - 1615 2 —EC-567
NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.No DTC
Flashing*4—
Flashing*4EC-569

EC-534
[QR (WITHOUT EURO-OBD)]
INDEX FOR DTC

*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: For models with ESP system.
*7: For QR25DE engine models.NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.P0000 0000———
PW ST P SEN/CIRC P0550 0550 2 —EC-711
P-N POS SW/CIRCUIT P1706 1706 2 —EC-802
SENSOR POWER/CIRC P1229 1229 1×EC-775
TCS C/U FUNCTN*6P1211 1211 2 —EC-753
TCS/CIRC*6P1212 1212 2 —EC-754
TP SEN 1/CIRC P0222 0222 1×EC-680
TP SEN 1/CIRC P0223 0223 1×EC-680
TP SEN 2/CIRC P0122 0122 1×EC-658
TP SEN 2/CIRC P0123 0123 1×EC-658
TP SENSOR P2135 2135 1×EC-830
VEH SPEED SEN/CIRC P0500 0500 2×EC-709
V/SP SEN (A/T OUT) P1720 1720 2 —EC-807
Items
(CONSULT-II screen terms)DTC*1
TripMI lighting
upReference page
CONSULT-II*2ECM*3

INDEX FOR DTC
EC-535
[QR (WITHOUT EURO-OBD)]
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DTC No. IndexEBS010WF
NOTE:
If DTC U1000 or U1001 is displayed with other DTC, first perform the trouble diagnosis for DTC U1000,
U1001. Refer to EC-633, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .
DTC*1Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II*
2ECM*3
No DTC
Flashing*4NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.—
Flashing*4EC-569
U1000
1000*5CAN COMM CIRCUIT 2 —EC-633
U1001
1001*5CAN COMM CIRCUIT 2 —EC-633
P0000 0000NO DTC IS DETECTED.
FURTHER TESTING
MAY BE REQUIRED.———
P0011 0011 INT/V TIM CONT-B1 2 —EC-636
P0102 0102 MAF SEN/CIRCUIT 1×EC-644
P0103 0103 MAF SEN/CIRCUIT 1×EC-644
P0117 0117 ECT SEN/CIRC 2×EC-652
P0118 0118 ECT SEN/CIRC 2×EC-652
P0122 0122 TP SEN 2/CIRC 1×EC-658
P0123 0123 TP SEN 2/CIRC 1×EC-658
P0132 0132 HO2S1 (B1) 2×EC-666
P0134 0134 HO2S1 (B1) 2×EC-673
P0222 0222 TP SEN 1/CIRC 1×EC-680
P0223 0223 TP SEN 1/CIRC 1×EC-680
P0327 0327 KNOCK SEN/CIRC-B1 2 —EC-688
P0328 0328 KNOCK SEN/CIRC-B1 2 —EC-688
P0335 0335 CKP SEN/CIRCUIT 2×EC-693
P0340 0340 CMP SEN/CIRC-B1 2×EC-701
P0500 0500 VEH SPEED SEN/CIRC 2×EC-709
P0550 0550 PW ST P SEN/CIRC 2 —EC-711
P0605 0605 ECM 1 or 2× or —EC-716
P1065 1065 ECM BACK UP/CIRCUIT 2×EC-719
P1121 1121 ETC ACTR 1×EC-723
P1122 1122 ETC FUNCTION/CIRC 1×EC-726
P1124 1124 ETC MOT PWR 1×EC-737
P1126 1126 ETC MOT PWR 1×EC-737
P1128 1128 ETC MOT 1×EC-745
P1211 1211
TCS C/U FUNCTN*62—EC-753
P1212 1212
TCS/CIRC*62—EC-754
P1217 1217 ENG OVER TEMP 1×EC-755
P1225 1225 CTP LEARNING 2 —EC-771
P1226 1226 CTP LEARNING 2 —EC-773
P1229 1229 SENSOR POWER/CIRC 1×EC-775
P1564 1564
ASCD SW*71—EC-780
P1572 1572
ASCD BRAKE SW*71—EC-790

EC-536
[QR (WITHOUT EURO-OBD)]
INDEX FOR DTC

*1: 1st trip DTC No. is the same as DTC No.
*2: This number is prescribed by ISO 15031-5.
*3: In Diagnostic Test Mode II (Self-diagnostic results), this number is controlled by NISSAN.
*4: When engine is running.
*5: The troubleshooting for this DTC needs CONSULT-II.
*6: For models with ESP system.
*7: For QR25DE engine models.P1574 1574
ASCD VHL SPD SEN*
71—EC-800
P1610 - P1615 1610 - 1615 NATS MALFUNCTION 2 —EC-567
P1706 1706 P-N POS SW/CIRCUIT 2 —EC-802
P1720 1720 V/SP SEN (A/T OUT) 2 —EC-807
P1805 1805 BRAKE SW/CIRCUIT 1×EC-809
P2122 2122 APP SEN 1/CIRC 1×EC-815
P2123 2123 APP SEN 1/CIRC 1×EC-815
P2127 2127 APP SEN 2/CIRC 1×EC-822
P2128 2128 APP SEN 2/CIRC 1×EC-822
P2135 2135 TP SENSOR 1×EC-830
P2138 2138 APP SENSOR 1×EC-838
DTC*1Items
(CONSULT-II screen terms)TripMI lighting
upReference page
CONSULT-II*
2ECM*3