ac unit NISSAN X-TRAIL 2005 Service Manual PDF

CO-10
[QR]
ENGINE COOLANT

4. Check drained engine coolant for contaminants such as rust, corrosion or discoloration. If contaminated,
flush the engine cooling system. Refer to CO-10, "
FLUSHING COOLING SYSTEM" .
REFILLING ENGINE COOLANT
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.

If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-89, "CYLIN-
DER BLOCK" .
2. Make sure that each hose clamp has been firmly tightened.
3. Fill radiator and reservoir tank to specified level.

Pour engine coolant through engine coolant filler neck
slowly of less than 2 (1-3/4 lmp qt) a minute to allow air
in system to escape.

Use Genuine NISSAN Anti-freeze Coolant or equivalent
mixed with water (distilled or demineralized). Refer to
MA-17, "
RECOMMENDED FLUIDS AND LUBRICANTS".
4. Install radiator cap.
5. Warm up until opening thermostat and water control valve. Standard for warming-up time is approximately
10 minutes at 3,000 rpm.

Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat the engine.
6. Stop the engine and cool down to less than approximately 50°C (122°F).

Cool down using fan to reduce the time.

If necessary, refill radiator up to filler neck with engine coolant.
7. Refill reservoir tank to “MAX” level line with engine coolant.
8. Repeat steps 3 through 6 two or more times with radiator cap installed until the engine coolant level no
longer drops.
9. Check cooling system for leaks with the engine running.
10. Warm up the engine, and check for sound of engine coolant flow while running the engine from idle up to
3,000 rpm with heater temperature controller set at several position between “COOL” and “WARM”.

Sound may be noticeable at heater unit.
11. Repeat step 10 three times.
12. If sound is heard, bleed air from cooling system by repeating step 3 through 6 until the engine coolant
level no longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed, and radiator drain plug.Engine coolant capacity
(with reservoir tank at “MAX” level)
: Approx. 7.1 (6-1/4 lmp qt)
SMA182B
Reservoir tank capacity (at “MAX” level)
: 0.7 (5/8 lmp qt)
SMA412B

WATER PUMP
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WAT E R P U MPPFP:21020
Removal and InstallationEBS00KON
REMOVAL
1. Drain engine coolant. Refer to CO-9, "Changing Engine Coolant" .
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belt.
2. Remove the following parts.

RH undercover

Drive belt; Refer to EM-13, "DRIVE BELTS" .

Drive belt auto-tensioner; Refer to EM-14, "Removal and Installation of Drive Belt Auto-Tensioner" .
3. Remove water pump.

Engine coolant will leak from cylinder block, so have a receptacle ready below.
CAUTION:

Handle water pump vane so that it does not contact any other parts.

Water pump cannot be disassembled and should be replaced as a unit.
4. Remove water pump housing with the following procedure;
a. Remove alternator. Refer to SC-13, "
CHARGING SYSTEM" .
b. Remove oil level gauge and oil level gauge guide. Refer to EM-27, "
OIL PAN AND OIL STRAINER" .
CAUTION:
Plug the oil level gauge guide opening to prevent oil pan from entering foreign materials.
c. Remove mounting bolts for water pipe.
d. Remove water pump housing.
5. Remove exhaust manifold and three way catalyst assembly. Refer to EM-25, "
EXHAUST MANIFOLD
AND THREE WAY CATALYST" .
6. Remove water pipe.
1. Water pump 2. Gasket 3. Gasket
4. Water pump housing 5. Gasket 6. Water pipe
7. O-ring
PBIC2253E

SERVICE DATA AND SPECIFICATIONS (SDS)
CO-25
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00KOP
CAPACITY
Unit: (lmp qt)
RADIATOR
Unit: kPa (bar, kg/cm2 , psi)
THERMOSTAT
WATER CONTROL VALVE
*: Reference data
Tightening TorqueEBS00KOQ
Unit: N·m (kg-m, ft-lb)
Unit: N·m (kg-m, in-lb)*
Engine coolant capacity (With reservoir tank at “MAX” level) Approx. 7.1 (6-1/4)
Reservoir tank0.7 (5/8)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11- 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Valve opening temperature 80.5 - 83.5°C (177 - 182°F)
Maximum valve lift 8 mm/ 95°C (0.315 in/ 203°F)
Valve closing temperature 77°C (171°F)
Valve opening temperature 93.5 - 96.5°C (200 - 206°F)
Maximum valve lift 8 mm/ 108°C (0.315 in/ 226°F)*
Valve closing temperature 90°C (194°F)
Radiator mounting bracket 5.5 (0.56, 49)*
Radiator cooling fan assembly 5.5 (0.56, 49)*
Cooling fan3.43 (0.35, 30)*
Fan motor4.41 (0.45, 39)*
Water pump24.5 (2.5, 18)
Water pump housing28.0 (2.9, 21)
Water pipe28.0 (2.9, 21)
Water inlet28.0 (2.9, 21)
Water control valve housing (water outlet) 28.0 (2.9, 21)
Hater pipe28.0 (2.9, 21)
Engine coolant temperature sensor 24.5 (2.5, 18)

PREPARATION
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[YD22DDTi]
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PREPARATIONPFP:00002
Special Service ToolsEBS00BAV
Commercial Service ToolsEBS011UY
Tool number
Tool nameDescription
EG17650301
Radiator cap tester adapterAdapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV99103510
Radiator plate pliers AInstalling radiator upper and lower tanks
KV99103520
Radiator plate pliers BRemoving radiator upper and lower tanks
S-NT564
S-NT224
S-NT225
Tool nameDescription
Radiator cap tester Checking radiator and radiator cap
PBIC1982E

CO-34
[YD22DDTi]
ENGINE COOLANT

10. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between “COOL” and “WARM”.

Sound may be noticeable at heater unit.
11. Repeat step 10 three times.
12. If sound is heard, bleed air from cooling system by repeating steps 3 through 6 until engine coolant level
no longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.

If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-235, "ASSEM-
BLY" .
2. Fill radiator with water until water spills from the air relief hole, then close air relief plug. Fill radiator and
reservoir tank with water and reinstall radiator cap.
3. Run engine and warm it up to normal operating temperature.
4. Rev engine two or three times under no-load.
5. Stop engine and wait until it cools down.
6. Drain water from the system. Refer to CO-32, "
DRAINING ENGINE COOLANT" .
7. Repeat steps 1 through 6 until clear water begins to drain from radiator.

WATER PUMP
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WAT E R P U MPPFP:21020
Removal and InstallationEBS00BB4
WARNING:
Do not remove radiator cap when the engine is hot. Serious burns could occur from high pressure
engine coolant escaping from the radiator.
REMOVAL
1. Remove RH engine undercover.
2. Remove drive belt. Refer to EM-140, "
DRIVE BELTS" .
3. Drain engine coolant. Refer to CO-32, "
DRAINING ENGINE COOLANT" .
CAUTION:
Perform when engine is cold.
4. Support the bottom of oil pan (lower) with a floor jack etc, and remove RH engine mounting insulator (front
side of engine). Refer to EM-222, "
ENGINE ASSEMBLY" .
5. Remove water pump pulley.

Loosen the pulley bolts after fixing the pulley using a screwdriver etc.
6. Remove RH engine mounting bracket.
7. Remove water pump.

Engine coolant will leak from cylinder block, so have a receptacle ready below.
CAUTION:

Handle the water pump vane so that it does not contact any other parts.

Water pump cannot be disassembled and should be replaced as a unit.
1. Gasket 2. Water pump 3. RH engine mounting bracket
4. Water pump pulley
PBIC2384E

SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00CU0
CAPACITY
Unit: (lmp qt)
THERMOSTAT
RADIATOR
Unit: kPa (bar, kg/cm2 , psi)
Tightening TorqueEBS00BKE
Unit: N·m (kg-m, ft-lb)
Unit: N·m (kg-m, in-lb)*
Engine coolant capacity (With reservoir tank at “MAX” level) Approx 9.5 (8-3/8)
Reservoir tank0.7 (5/8)
Valve opening temperature 80 - 84°C (176 - 183°F)
Full open lift amount More than 10 mm/ 95°C (0.39 in/203°F)
Valve closing temperature More than 77°C (171°F)
Cap relief pressureStandard 78 - 98 (0.78 - 0.98, 0.8 - 1.0, 11 - 14)
Limit 59 (0.59, 0.6, 9)
Leakage test pressure 157 (1.57, 1.6, 23)
Air relief plug7.4 (0.75, 65)*
Radiator mounting bracket
Cooling fan assembly
Cooling fan
Cooling fan motor (RH and LH)5.5 (0.56, 49)*
5.5 (0.56, 49)*
3.43 (0.35, 30)*
4.41 (0.45, 39)*
Water pump
Water pump pulley
Water inlet
Thermostat housing
Water inlet pipe
Heater return pipe26.5 (2.7, 20)
8.5 (0.86, 75)*
25 (2.6, 18)
25 (2.6, 18)
25 (2.6, 18)
25 (2.6, 18)

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
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SECTION EC
A
EC

ENGINE CONTROL SYSTEM
QR (WITH EURO-OBD)
INDEX FOR DTC ...................................................... 19
Alphabetical Index .................................................. 19
DTC No. Index ....................................................... 21
PRECAUTIONS ........................................................ 24
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................ 24
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 24
Precaution .............................................................. 24
Wiring Diagrams and Trouble Diagnosis ................ 27
PREPARATION ......................................................... 28
Special Service Tools ............................................. 28
Commercial Service Tools ...................................... 29
ENGINE CONTROL SYSTEM .................................. 30
System Diagram ..................................................... 30
Vacuum Hose Drawing ........................................... 32
System Chart ......................................................... 34
Multiport Fuel Injection (MFI) System .................... 35
Electronic Ignition (EI) System ............................... 37
Air Conditioning Cut Control ................................... 38
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 38
CAN Communication Unit ...................................... 39
BASIC SERVICE PROCEDURE .............................. 45
Idle Speed and Ignition Timing Check .................... 45
Accelerator Pedal Released Position Learning ...... 46
Throttle Valve Closed Position Learning ................ 47
Idle Air Volume Learning ........................................ 47
Fuel Pressure Check .............................................. 49
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 52
Introduction ............................................................ 52
Two Trip Detection Logic ........................................ 52
Emission-related Diagnostic Information ................ 53
NATS (Nissan Anti-theft System) ........................... 64
Malfunction Indicator (MI) ....................................... 64
OBD System Operation Chart ................................ 67
TROUBLE DIAGNOSIS ............................................ 73
Trouble Diagnosis Introduction ............................... 73DTC Inspection Priority Chart ................................. 77
Fail-Safe Chart ....................................................... 78
Basic Inspection ..................................................... 79
Symptom Matrix Chart ............................................ 84
Engine Control Component Parts Location ............ 88
Circuit Diagram ....................................................... 93
ECM Harness Connector Terminal Layout ............. 95
ECM Terminals and Reference Value ..................... 95
CONSULT-II Function (ENGINE) ..........................103
Generic Scan Tool (GST) Function .......................113
CONSULT-II Reference Value in Data Monitor Mode
.115
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................118
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .120
Description ............................................................120
Testing Condition ..................................................120
Inspection Procedure ............................................120
Diagnostic Procedure ...........................................121
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................124
Description ............................................................124
Diagnostic Procedure ...........................................124
POWER SUPPLY AND GROUND CIRCUIT ...........125
Wiring Diagram .....................................................125
Diagnostic Procedure ...........................................126
Component Inspection ..........................................132
Ground Inspection ................................................132
DTC U1000, U1001 CAN COMMUNICATION LINE .133
Description ............................................................133
On Board Diagnosis Logic ....................................133
DTC Confirmation Procedure ...............................133
Wiring Diagram .....................................................134
Diagnostic Procedure ...........................................135
DTC P0011 IVT CONTROL .....................................136
Description ............................................................136
CONSULT-II Reference Value in Data Monitor Mode
.136
On Board Diagnosis Logic ....................................137

EC-4 CONSULT-II Reference Value in Data Monitor Mode
.306
On Board Diagnosis Logic ....................................306
DTC Confirmation Procedure ...............................306
Wiring Diagram .....................................................308
Diagnostic Procedure ...........................................311
Component Inspection ..........................................313
DTC P1128 THROTTLE CONTROL MOTOR .........314
Component Description ........................................314
On Board Diagnosis Logic ....................................314
DTC Confirmation Procedure ...............................314
Wiring Diagram .....................................................315
Diagnostic Procedure ...........................................319
Component Inspection ..........................................320
Removal and Installation ......................................321
DTC P1143 HO2S1 .................................................322
Component Description ........................................322
CONSULT-II Reference Value in Data Monitor Mode
.322
On Board Diagnosis Logic ....................................322
DTC Confirmation Procedure ...............................323
Overall Function Check ........................................323
Diagnostic Procedure ...........................................324
Component Inspection ..........................................326
Removal and Installation ......................................327
DTC P1144 HO2S1 .................................................328
Component Description ........................................328
CONSULT-II Reference Value in Data Monitor Mode
.328
On Board Diagnosis Logic ....................................328
DTC Confirmation Procedure ...............................329
Overall Function Check ........................................329
Diagnostic Procedure ...........................................330
Component Inspection ..........................................332
Removal and Installation ......................................333
DTC P1146 HO2S2 .................................................334
Component Description ........................................334
CONSULT-II Reference Value in Data Monitor Mode
.334
On Board Diagnosis Logic ....................................334
DTC Confirmation Procedure ...............................335
Overall Function Check ........................................336
Wiring Diagram .....................................................337
Diagnostic Procedure ...........................................338
Component Inspection ..........................................340
Removal and Installation ......................................341
DTC P1147 HO2S2 .................................................342
Component Description ........................................342
CONSULT-II Reference Value in Data Monitor Mode
.342
On Board Diagnosis Logic ....................................342
DTC Confirmation Procedure ...............................343
Overall Function Check ........................................344
Wiring Diagram .....................................................345
Diagnostic Procedure ...........................................346
Component Inspection ..........................................348
Removal and Installation ......................................349
DTC P1211 TCS CONTROL UNIT ..........................350
Description ............................................................350On Board Diagnosis Logic ....................................350
DTC Confirmation Procedure ................................350
Diagnostic Procedure ............................................350
DTC P1212 TCS COMMUNICATION LINE .............351
Description ............................................................351
On Board Diagnosis Logic ....................................351
DTC Confirmation Procedure ................................351
Diagnostic Procedure ............................................351
DTC P1217 ENGINE OVER TEMPERATURE ........352
System Description ...............................................352
CONSULT-II Reference Value in Data Monitor Mode
.353
On Board Diagnosis Logic ....................................353
Overall Function Check .........................................353
Wiring Diagram .....................................................356
Diagnostic Procedure ............................................359
Main 12 Causes of Overheating ...........................366
Component Inspection ..........................................367
DTC P1225 TP SENSOR ........................................368
Component Description ........................................368
On Board Diagnosis Logic ....................................368
DTC Confirmation Procedure ................................368
Diagnostic Procedure ............................................369
Removal and Installation .......................................369
DTC P1226 TP SENSOR ........................................370
Component Description ........................................370
On Board Diagnosis Logic ....................................370
DTC Confirmation Procedure ................................370
Diagnostic Procedure ............................................371
Removal and Installation .......................................371
DTC P1229 SENSOR POWER SUPPLY ................372
On Board Diagnosis Logic ....................................372
DTC Confirmation Procedure ................................372
Wiring Diagram .....................................................373
Diagnostic Procedure ............................................374
DTC P1564 ASCD STEERING SWITCH ................377
Component Description ........................................377
CONSULT-II Reference Value in Data Monitor Mode
.377
On Board Diagnosis Logic ....................................377
DTC Confirmation Procedure ................................378
Wiring Diagram .....................................................379
Diagnostic Procedure ............................................383
Component Inspection ..........................................386
DTC P1572 ASCD BRAKE SWITCH ......................387
Component Description ........................................387
CONSULT-II Reference Value in Data Monitor Mode
.387
On Board Diagnosis Logic ....................................387
DTC Confirmation Procedure ................................388
Wiring Diagram .....................................................389
Diagnostic Procedure ............................................390
Component Inspection ..........................................395
DTC P1574 ASCD VEHICLE SPEED SENSOR .....396
System Description ...............................................396
On Board Diagnosis Logic ....................................396
DTC Confirmation Procedure ................................396
Diagnostic Procedure ............................................397

EC-6 Wiring Diagram .....................................................515
Diagnostic Procedure ...........................................517
MI & DATA LINK CONNECTORS ...........................518
Wiring Diagram .....................................................518
EVAPORATIVE EMISSION SYSTEM .....................522
Description ............................................................522
Component Inspection ..........................................525
POSITIVE CRANKCASE VENTILATION ...............527
Description ............................................................527
Component Inspection ..........................................527
AUTOMATIC SPEED CONTROL DEVICE (ASCD) .529
System Description ...............................................529
Component Description ........................................530
SERVICE DATA AND SPECIFICATIONS (SDS) ....531
Fuel Pressure .......................................................531
Idle Speed and Ignition Timing .............................531
Calculated Load Value ..........................................531
Mass Air Flow Sensor ...........................................531
Intake Air Temperature Sensor .............................531
Engine Coolant Temperature Sensor ...................531
Heated Oxygen Sensor 1 Heater .........................531
Heated Oxygen sensor 2 Heater ..........................532
Crankshaft Position Sensor (POS) .......................532
Camshaft Position Sensor (PHASE) ....................532
Throttle Control Motor ...........................................532
Injector ..................................................................532
Fuel Pump ............................................................532
QR (WITHOUT EURO-OBD)
INDEX FOR DTC .....................................................533
Alphabetical Index ................................................533
DTC No. Index ......................................................535
PRECAUTIONS .......................................................537
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ...............................................................537
On Board Diagnostic (OBD) System of Engine ....537
Precaution ............................................................537
Wiring Diagrams and Trouble Diagnosis ..............540
PREPARATION .......................................................541
Special Service Tools ...........................................541
Commercial Service Tools ....................................542
ENGINE CONTROL SYSTEM ................................543
System Diagram ...................................................543
Vacuum Hose Drawing .........................................545
System Chart ........................................................547
Multiport Fuel Injection (MFI) System ...................548
Electronic Ignition (EI) System .............................550
Air Conditioning Cut Control .................................551
Fuel Cut Control (at No Load and High Engine
Speed) ..................................................................551
CAN Communication Unit .....................................552
BASIC SERVICE PROCEDURE .............................558
Idle Speed and Ignition Timing Check ..................558
Accelerator Pedal Released Position Learning ....559
Throttle Valve Closed Position Learning ...............560
Idle Air Volume Learning ......................................560
Fuel Pressure Check ............................................562ON BOARD DIAGNOSTIC (OBD) SYSTEM ...........565
Introduction ...........................................................565
Two Trip Detection Logic .......................................565
Emission-related Diagnostic Information ..............565
NATS (Nissan Anti-theft System) ..........................567
Malfunction Indicator (MI) .....................................568
TROUBLE DIAGNOSIS ..........................................572
Trouble Diagnosis Introduction .............................572
DTC Inspection Priority Chart ...............................576
Fail-Safe Chart ......................................................577
Basic Inspection ....................................................578
Symptom Matrix Chart ..........................................584
Engine Control Component Parts Location ...........588
Circuit Diagram .....................................................593
ECM Harness Connector Terminal Layout ............595
ECM Terminals and Reference Value ...................595
CONSULT-II Function (ENGINE) ..........................604
CONSULT-II Reference Value in Data Monitor Mode
.615
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................618
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .620
Description ............................................................620
Testing Condition ..................................................620
Inspection Procedure ............................................620
Diagnostic Procedure ............................................621
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................624
Description ............................................................624
Diagnostic Procedure ............................................624
POWER SUPPLY AND GROUND CIRCUIT ...........625
Wiring Diagram .....................................................625
Diagnostic Procedure ............................................626
Component Inspection ..........................................632
Ground Inspection .................................................632
DTC U1000, U1001 CAN COMMUNICATION LINE .633
Description ............................................................633
On Board Diagnosis Logic ....................................633
DTC Confirmation Procedure ................................633
Wiring Diagram .....................................................634
Diagnostic Procedure ............................................635
DTC P0011 IVT CONTROL .....................................636
Description ............................................................636
CONSULT-II Reference Value in Data Monitor Mode
.637
On Board Diagnosis Logic ....................................637
DTC Confirmation Procedure ................................637
Overall Function Check .........................................639
Wiring Diagram .....................................................640
Diagnostic Procedure ............................................641
Component Inspection ..........................................643
Removal and Installation .......................................643
DTC P0102, P0103 MAF SENSOR .........................644
Component Description ........................................644
CONSULT-II Reference Value in Data Monitor Mode
.644
On Board Diagnosis Logic ....................................644
DTC Confirmation Procedure ................................644
Wiring Diagram .....................................................646