2003 NISSAN X-TRAIL air filter

ENGINE OIL
LU-7
[QR]
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LU

ENGINE OILPFP:KLA92
InspectionEBS00KO3
ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop
it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and make sure the engine oil level is within
the range shown in the figure.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE

Check engine oil for white turbidity or heavy contamination.

If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKAGE
Check for engine oil leakage around the following area.

Oil pan

Oil pan drain plug

Oil pressure switch

Oil filter

Oil cooler

Intake valve timing control cover and intake valve timing control solenoid valve

Front cover

Mating surface between cylinder block and lower cylinder block

Mating surface between cylinder block and cylinder head

Mating surface between cylinder head and rocker cover

Crankshaft oil seals (front and rear)
OIL PRESSURE CHECK
WARNING:

Be careful not to burn yourself, as engine oil may be hot.

Engine oil pressure check should be in “ Parking position” (A/T models) or “Neutral position” (M/T
models), and should apply parking brake securely.
1. Check engine oil level. Refer to LU-7, "
ENGINE OIL LEVEL" .
2. Remove RH undercover.
PBIC0249E

LU-20
[YD22DDTi]
ENGINE OIL

ENGINE OILPFP:KLA92
InspectionEBS00B03
ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop
it and allow 10 minutes before checking.
1. Pull out oil level gauge and wipe it clean.
2. Insert oil level gauge and make sure the engine oil level is within
the range shown in the figure.
3. If it is out of range, adjust it.
ENGINE OIL APPEARANCE

Check engine oil for white turbidity or heavy contamination.

If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKAGE
Check for engine oil leakage around the following area.

Oil pan

Oil pan drain plug

Oil pressure switch

Oil filter bracket

Oil cooler.

Oil pump housing

Va c u u m p u m p

Cylinder head rear cover assembly

Front and rear chain cases

Mating surface between cylinder block and cylinder head

Mating surface between cylinder head and rocker cover

Front and rear oil seals

Turbocharger

Oil tube connecting parts from turbocharger
ENGINE OIL PRESSURE CHECK
WARNING:

Be careful not to burn yourself, as the engine oil is hot.

Be sure to check oil pressure in “ Neutral position” and parking brake should be applied securely.
1. Check the engine oil level. Refer to LU-20, "
ENGINE OIL LEVEL" .
2. Remove RH engine undercover.
3. Remove exhaust front tube. Refer to EX-2, "
EXHAUST SYSTEM" .
SBIA0122E

EC-9
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ECA
Wiring Diagram .................................................... 793
Diagnostic Procedure ........................................... 794
Component Inspection ......................................... 796
Removal and Installation ...................................... 797
IGNITION SIGNAL .................................................. 798
Component Description ........................................ 798
Wiring Diagram .................................................... 799
Diagnostic Procedure ........................................... 802
Component Inspection ......................................... 807
Removal and Installation ...................................... 808
EVAP CANISTER PURGE VOLUME CONTROL
SOLENOID VALVE ................................................. 809
Description ........................................................... 809
CONSULT-II Reference Value in Data Monitor Mode
. 809
Wiring Diagram .................................................... 810
Diagnostic Procedure ........................................... 812
Component Inspection ......................................... 815
Removal and Installation ...................................... 815
PNP SWITCH .......................................................... 816
Component Description ........................................ 816
CONSULT-II Reference Value in Data Monitor Mode
. 816
Wiring Diagram .................................................... 817
Diagnostic Procedure ........................................... 818
INJECTOR CIRCUIT ............................................... 820
Component Description ........................................ 820
CONSULT-II Reference Value in Data Monitor Mode
. 820
Wiring Diagram .................................................... 821
Diagnostic Procedure ........................................... 822
Component Inspection ......................................... 825
Removal and Installation ...................................... 825
VIAS ........................................................................ 826
Description ........................................................... 826
CONSULT-II Reference Value in Data Monitor Mode
. 827
Wiring Diagram .................................................... 828
Diagnostic Procedure ........................................... 830
Component Inspection ......................................... 833
Removal and Installation ...................................... 834
FUEL PUMP CIRCUIT ............................................ 835
Description ........................................................... 835
CONSULT-II Reference Value in Data Monitor Mode
. 835
Wiring Diagram .................................................... 836
Diagnostic Procedure ........................................... 839
Component Inspection ......................................... 842
Removal and Installation ...................................... 842
REFRIGERANT PRESSURE SENSOR ................. 843
Component Description ........................................ 843
Wiring Diagram .................................................... 844
Diagnostic Procedure ........................................... 845
Removal and Installation ...................................... 847
ELECTRICAL LOAD SIGNAL ................................ 848
CONSULT-II Reference Value in Data Monitor Mode
. 848
Wiring Diagram .................................................... 849
Diagnostic Procedure ........................................... 856MI & DATA LINK CONNECTORS ...........................861
Wiring Diagram .....................................................861
Wiring Diagram – ..................................................863
EVAPORATIVE EMISSION SYSTEM .....................865
Description ............................................................865
Component Inspection ..........................................868
POSITIVE CRANKCASE VENTILATION ...............870
Description ............................................................870
Component Inspection ..........................................870
SERVICE DATA AND SPECIFICATIONS (SDS) ....872
Fuel Pressure .......................................................872
Idle Speed and Ignition Timing .............................872
Mass Air Flow Sensor ...........................................872
Intake Air Temperature Sensor .............................872
Engine Coolant Temperature Sensor ...................872
Heated Oxygen Sensor 1 Heater .........................872
Heated Oxygen sensor 2 Heater ..........................872
Crankshaft Position Sensor (POS) .......................872
Camshaft Position Sensor (PHASE) ....................873
Throttle Control Motor ...........................................873
Injector ..................................................................873
Fuel Pump ............................................................873
YD (WITH EURO-OBD)
INDEX FOR DTC .....................................................874
Alphabetical Index ................................................874
DTC No. Index ......................................................876
PRECAUTIONS ......................................................878
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................878
On Board Diagnostic (OBD) System of Engine ....878
Precautions ...........................................................878
Wiring Diagrams and Trouble Diagnosis ..............881
PREPARATION .......................................................882
Special Service Tools ...........................................882
Commercial Service Tools ....................................882
ENGINE CONTROL SYSTEM ................................883
System Diagram ...................................................883
Vacuum Hose Drawing .........................................884
System Chart ........................................................885
Fuel Injection Control System ...............................885
Fuel Injection Timing Control System ...................887
Air Conditioning Cut Control .................................887
Fuel Cut Control (At No Load & High Engine Speed) .887
Crankcase Ventilation System ..............................888
CAN Communication ............................................888
BASIC SERVICE PROCEDURE .............................890
Fuel Filter ..............................................................890
Fuel Pump Learning Value Clearing .....................890
ON BOARD DIAGNOSTIC (OBD) SYSTEM ..........892
Introduction ...........................................................892
Three Trip Detection Logic and One Trip Detection
Logic .....................................................................892
Emission-related Diagnostic Information ..............892
NATS (Nissan Anti-theft System) .........................896
Malfunction Indicator (MI) .....................................896
OBD System Operation Chart ..............................898

EC-14 Crankshaft Position Sensor .................................1204
Camshaft Position Sensor ...................................1204
YD (WITHOUT EURO-OBD)
INDEX FOR DTC ....................................................1205
Alphabetical Index ...............................................1205
DTC No. Index .....................................................1206
PRECAUTIONS ......................................................1209
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ..............................................................1209
On Board Diagnostic (OBD) System of Engine ...1209
Precautions ..........................................................1209
Wiring Diagrams and Trouble Diagnosis .............1212
PREPARATION ......................................................1213
Special Service Tools ..........................................1213
Commercial Service Tools ...................................1213
ENGINE CONTROL SYSTEM ...............................1214
System Diagram ..................................................1214
Vacuum Hose Drawing ........................................1215
System Chart .......................................................1216
Fuel Injection Control System ..............................1216
Fuel Injection Timing Control System ..................1218
Air Conditioning Cut Control ................................1218
Fuel Cut Control (At No Load & High Engine Speed) 1218
Crankcase Ventilation System .............................1219
CAN Communication ...........................................1219
BASIC SERVICE PROCEDURE ............................1221
Fuel Filter .............................................................1221
Fuel Pump Learning Value Clearing ....................1221
ON BOARD DIAGNOSTIC (OBD) SYSTEM .........1223
DTC and MI Detection Logic ...............................1223
Diagnostic Trouble Code (DTC) ..........................1223
Freeze Frame Data ..............................................1223
NATS (Nissan Anti-theft System) .........................1224
Malfunction Indicator (MI) ....................................1224
TROUBLE DIAGNOSIS .........................................1227
Trouble Diagnosis Introduction ............................1227
DTC Inspection Priority Chart ..............................1230
Basic Inspection ..................................................1231
Symptom Matrix Chart .........................................1235
Engine Control Component Parts Location .........1239
Circuit Diagram ....................................................1243
ECM Harness Connector Terminal Layout ..........1245
ECM Terminals And Reference Value .................1245
CONSULT-II Function ..........................................1251
CONSULT-II Reference Value in Data Monitor Mode
1257
Major Sensor Reference Graph in Data Monitor
Mode ....................................................................1259
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT ......................................................................1260
Description ...........................................................1260
Diagnostic Procedure ..........................................1260
MAIN POWER SUPPLY AND GROUND CIRCUIT 1261
ECM Terminals and Reference Value ..................1261
Wiring Diagram ....................................................1262
Diagnostic Procedure ..........................................1263Component Inspection .........................................1266
Ground Inspection ................................................1267
DTC U1000 CAN COMMUNICATION LINE ...........1268
Description ...........................................................1268
On Board Diagnosis Logic ...................................1268
DTC Confirmation Procedure ...............................1268
Wiring Diagram ....................................................1269
Diagnostic Procedure ...........................................1270
DTC P0016 CKP - CMP CORRELATION ..............1271
On Board Diagnosis Logic ...................................1271
DTC Confirmation Procedure ...............................1271
Diagnostic Procedure ...........................................1271
DTC P0088 FUEL SYSTEM ...................................1273
On Board Diagnosis Logic ...................................1273
DTC Confirmation Procedure ...............................1273
Diagnostic Procedure ...........................................1273
Removal and Installation ......................................1274
DTC P0089 FUEL PUMP .......................................1275
On Board Diagnosis Logic ...................................1275
DTC Confirmation Procedure ...............................1275
Diagnostic Procedure ...........................................1275
Removal and Installation ......................................1276
DTC P0093 FUEL SYSTEM ...................................1277
On Board Diagnosis Logic ...................................1277
DTC Confirmation Procedure ...............................1277
Diagnostic Procedure ...........................................1277
Component Inspection .........................................1278
Removal and Installation ......................................1279
DTC P0102, P0103 MAF SENSOR ........................1280
Component Description .......................................1280
CONSULT-II Reference Value in Data Monitor Mode
1280
ECM Terminals and Reference Value ..................1280
On Board Diagnosis Logic ...................................1280
DTC Confirmation Procedure ...............................1280
Wiring Diagram ....................................................1282
Diagnostic Procedure ...........................................1283
Component Inspection .........................................1285
Removal and Installation ......................................1285
DTC P0112, P0113 IAT SENSOR ...........................1286
Component Description .......................................1286
On Board Diagnosis Logic ...................................1286
DTC Confirmation Procedure ...............................1286
Wiring Diagram ....................................................1287
Diagnostic Procedure ...........................................1288
Component Inspection .........................................1290
Removal and Installation ......................................1290
DTC P0117, P0118 ECT SENSOR .........................1291
Description ...........................................................1291
On Board Diagnosis Logic ...................................1291
DTC Confirmation Procedure ...............................1291
Wiring Diagram ....................................................1293
Diagnostic Procedure ...........................................1294
Component Inspection .........................................1296
Removal and Installation ......................................1296
DTC P0122, P0123 APP SENSOR ........................1297
Description ...........................................................1297
CONSULT-II Reference Value in Data Monitor Mode
1297

EC-50
[QR (WITH EURO-OBD)]
BASIC SERVICE PROCEDURE


Fuel filter for clogging

Fuel pump

Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.

EC-512
[QR (WITHOUT EURO-OBD)]
BASIC SERVICE PROCEDURE


Fuel filter for clogging

Fuel pump

Fuel pressure regulator for clogging
If OK, replace fuel pressure regulator.
If NG, repair or replace.

EC-890
[YD (WITH EURO-OBD)]
BASIC SERVICE PROCEDURE

BASIC SERVICE PROCEDUREPFP:00018
Fuel FilterEBS01172
DESCRIPTION
A water draining cock is on the lower side and a priming pump for bleeding air is on the upper side.
AIR BLEEDING
Pump the priming pump to bleed air.

When air is bled completely, the pumping of the priming pump
suddenly becomes heavy. Stop the operation at that time.

If it is difficult to bleed air by the pumping of the priming pump
(the pumping of the priming pump does not become heavy), dis-
connect the fuel supply hose between the fuel filter and the fuel
gallery. Then, perform the operation described above, and make
sure that fuel comes out. (Use a pan, etc. so as not to spill fuel.
Do not let fuel get on engine and other parts.) After that, connect
the hose, then bleed air again.

Start engine and let it idle for at least 1 minute after performing
air bleeding.
WATER DRAINING
1. Remove the fuel filter, filter bracket, protector assembly from the dash panel as follows.
a. Remove the air cleaner case (upper), air duct assembly, and vacuum hose for brake booster (between the
vacuum pump and vacuum pipe).
CAUTION:
After the duct is removed, cover the opening with gum tape, etc. to prevent foreign object from
getting into the engine during the operation.
b. Remove the mounting nuts on the dash panel, then remove the fuel filter, filter bracket, and protector
assembly from the dash panel.

It is not necessary to disconnect the fuel hose.
2. Using a tool such as a pliers, loosen the water draining cock at
the bottom of the fuel filter.
Loosening drain cock four to five turns causes water to
start draining.
Do not remove drain cock by loosening it excessively.
If water dose not drain properly, move the priming up and down.
CAUTION:
When the water is drained, the fuel is also drained. Use a
pan, etc. to avoid fuel adherence to the rubber parts such as
the engine mount insulator.
Do not over-tighten the water draining cock. This will dam-
age the cock thread, resulting in water or fuel leak.
3. Bleed air of the fuel filter. Refer to EC-890, "
AIR BLEEDING" .
4. Start the engine.
Fuel Pump Learning Value ClearingEBS01173
DESCRIPTION
In order to always keep optimum fuel pressure in fuel rail, the ECM controls fuel pump in high precision with
monitoring the signal of fuel rail pressure sensor.
Accordingly, the ECM always learns characteristic value of fuel pump. Fuel Pump Learning Value Clearing is
an operating to clear the value of the fuel pump learning.
It must be performed after the fuel pump is changed. When the ECM is replaced with brand new one, the Fuel
Pump Learning Value Clearing is not necessary to be performed. If the ECM to be replaced has the possibility
of learning the characteristic value of fuel pump, the Fuel Pump Learning Value Clearing is necessary to be
performed after the ECM has been replaced.
OPERATION PROCEDURE
NOTE:
Remove fuel pump without starting engine after performing Fuel Pump Learning Value Clearing.
PBIB1932E
SMA825B

EC-906
[YD (WITH EURO-OBD)]
TROUBLE DIAGNOSIS

1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related incident.
2. Check the current need for scheduled maintenance, especially for fuel filter and air cleaner filter. Refer to
MA-7, "
PERIODIC MAINTENANCE" .
3. Open engine hood and check the following:
–Harness connectors for improper connections
–Vacuum hoses for splits, kinks, or improper connections
–Wiring for improper connections, pinches, or cuts
4. Start engine and warm it up to the normal operating tempera-
ture.
>> GO TO 2.
2. PREPARATION FOR CHECKING IDLE SPEED
With CONSULT-II
Connect CONSULT-II to the data link connector.
>> GO TO 3.
3. CHECK IDLE SPEED
With CONSULT-II
1. Select “CKPS·RPM (TDC)” in “DATA MONITOR” mode with CONSULT-II.
2. Read idle speed.
OK or NG
OK >>INSPECTION END
NG >> GO TO 4.
4. CHECK FOR INTAKE AIR LEAK
Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 5.
NG >> Repair or replace.
SEF142I
725±25 rpm
SEF817Y