engine NISSAN X-TRAIL 2003 Electronic Repair Manual

RFD-2
PRECAUTIONS
PRECAUTIONS
PFP:00001
CautionEDS00056
lBefore starting diagnosis of the vehicle, understand symptoms well. Perform correct and systematic oper-
ations.
lCheck for the correct installation status prior to removal or disassembly. When mating marks are required,
be sure they do not interfere with the function of the parts they are applied to.
lCarry out an overhaul in a clean work place. Using a dust proof room is recommended.
lBefore disassembly, using steam or white gasoline, completely remove sand and mud from the exterior of
the unit, preventing them from entering into the unit during disassembly or assembly.
lCheck appearance of the disassembled parts for damage, deformation, and abnormal wear. If a malfunc-
tion is detected, replace it with a new one.
lNormally replace lock pins, oil seals, and bearings with new ones every time they are removed.
lIn principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, observe it.
lClean and flush the parts sufficiently and blow them dry.
lBe careful not to damage the sliding surfaces and mating surfaces.
lWhen applying sealant, remove the old sealant from the mounting surface; then remove any moisture, oil,
and foreign materials from the application and mounting surfaces.
lAlways use shop paper for cleaning the inside of components.
lAvoid using cotton gloves or a shop cloth to prevent entering of lint.
lDuring assembly, observe the specified tightening torque, and apply new differential oil, Vaseline, or Nis-
san MP Special Grease No. 2, as specified for each vehicle, when necessary.
lDo not reuse drained oil. Discard waste oil after oil changes or part treatment in accordance with local
laws and regulations.
Precautions for Brake SystemEDS000HX
lWhen installing rubber parts, final tightening must be carried out
under unladen condition* with tires on ground.
*: Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
lAfter installing removed suspension parts, check wheel align-
ment and adjust if necessary.
lUse flare nut wrench when removing or installing brake tubes.
lAlways torque brake lines when installing.
SBR686C

RSU-2
PRECAUTIONS
PRECAUTIONS
PFP:00001
CautionEES0007C
lFinal tightening of bushings must be carried out under unladen condition with tires on the ground. Oil will
shorten life of bushings. Be sure to wipe off any spilled oil.
l“Unladen condition” means that fuel, coolant and lubricant are full and ready for drive. However, spare tire,
jack, and hand tools should be unloaded.
lAfter installing the removed suspension parts, always check wheel alignment and adjust if necessary.
lReplace the caulking nut with a new one. Install a new nut without wiping the oil off before tightening.
Precautions for Brake SystemEES000JB
lWhen installing rubber parts, final tightening must be carried out
under unladen condition* with tires on ground.
*: Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
lUse flare nut wrench when removing or installing brake tubes.
lAfter installing removed suspension parts, check wheel align-
ment and adjust if necessary.
lAlways torque brake lines when installing.
SBR686C

RSU-14
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
General SpecificationEES000J7
Wheel Alignment (Unladen)EES0007N
: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Wheelarch Height (Unladen)EES000J8
: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.Suspension type Parallel link and strut type
Shock absorber type Double-acting hydraulic
Camber
Degree minute (Decimal degree)Minimum-1°25¢(-1.42°)
Nominal-0°40¢(-0.67°)
Maximum 0°05¢(0.08°)
Total Toe-in Distance (A - B) Minimum 0 mm (0 in)
Nominal 1 mm (0.04 in)
Maximum 2 mm (0.08 in)
Applied modelQR20DE engine YD22ET engine
215/65R15
Front (Hf) 773 mm (30.43 in) 771 mm (30.35 in)
Rear (Hr) 786 mm (30.94 in) 785 mm (30.91 in)
SFA818A

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STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
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STARTING & CHARGING SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Wiring Diagrams and Trouble Diagnosis .................. 2
BATTERY .................................................................... 3
How to Handle Battery ............................................. 3
METHODS OF PREVENTING OVER-DIS-
CHARGE ............................................................... 3
CHECKING ELECTROLYTE LEVEL .................... 3
SPECIFIC GRAVITY CHECK ............................... 4
Battery Test and Charging Chart .............................. 5
CHART I ................................................................ 5
CHART II ............................................................... 6
A: SLOW CHARGE ............................................... 7
B: STANDARD CHARGE ...................................... 8
C: QUICK CHARGE ............................................ 10
Removal and Installation .........................................11
CHARGING SYSTEM ............................................... 12
System Description ................................................ 12
Wiring Diagram — CHARGE — ............................. 13
Trouble Diagnoses ................................................. 14
WITH IC REGULATOR ....................................... 14
MALFUNCTION INDICATOR .............................. 14
Removal and Installation ........................................ 14
REMOVAL (QR ENGINE MODELS) ................... 14
REMOVAL (YD ENGINE MODELS) ................... 15
INSTALLATION ................................................... 15
Disassembly and Assembly ................................... 16
............................................................................ 16
............................................................................ 17
Disassembly ........................................................... 17
REAR COVER .................................................... 17REAR BEARING ................................................. 18
Inspection ............................................................... 18
ROTOR CHECK .................................................. 18
BRUSH CHECK .................................................. 18
PULLEY CHECK(WITH CLUTCH TYPE) ............ 18
STATOR CHECK ................................................. 19
Assembly ................................................................ 19
RING FITTING IN REAR BEARING .................... 19
REAR COVER INSTALLATION ........................... 19
STARTING SYSTEM ................................................. 21
System Description ................................................. 21
M/T MODELS ...................................................... 21
A/T MODELS ....................................................... 21
Wiring Diagram — START —/M/T models ............. 22
Wiring Diagram — START —/A/T models .............. 23
Trouble Diagnoses ................................................. 24
Removal and Installation ........................................ 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25
Disassembly and Assembly .................................... 26
Inspection ............................................................... 28
MAGNETIC SWITCH CHECK ............................. 28
PINION/CLUTCH CHECK ................................... 29
BRUSH CHECK .................................................. 29
YOKE CHECK ..................................................... 30
ARMATURE CHECK ........................................... 31
Assembly ................................................................ 32
PINION PROTRUSION LENGTH ADJUST-
MENT .................................................................. 32
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 34
Battery .................................................................... 34
Starter ..................................................................... 34
Alternator ................................................................ 34

BATTERY
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BATTERYPFP:00011
How to Handle BatteryEKS00313
CAUTION:
lIf it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt
booster battery.
lAfter connecting battery cables, ensure that they are tightly clamped to battery terminals for good
contact.
lNever add distilled water through the hole used to check specific gravity.
METHODS OF PREVENTING OVER-DISCHARGE
The following precautions must be taken to prevent over-discharging a battery.
lThe battery surface (particularly its top) should always be kept
clean and dry.
lThe terminal connections should be clean and tight.
lAt every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free”.
lWhen the vehicle is not going to be used over a long period of
time, disconnect the negative battery terminal. (If the vehicle has
an extended storage switch, turn it off.)
lCheck the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep a
close check on charge condition to prevent over-discharge.
CHECKING ELECTROLYTE LEVEL
WA RN ING:
Do not allow battery fluid to come in contact with skin, eyes, fabrics, or painted surfaces. After touch-
ing a battery, do not touch or rub your eyes until you have thoroughly washed your hands. If acid con-
tacts eyes, skin or clothing, immediately flush with water for 15 minutes and seek medical attention.
MEL040F
MEL041F
MEL042F

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CHARGING SYSTEM
CHARGING SYSTEM
PFP:00011
System DescriptionEKS00316
The alternator provides DC voltage to operate the vehicle's electrical system and to keep the battery charged.
The voltage output is controlled by the IC regulator.
Power is supplied at all times to alternator terminal 4 (S) through:
l120A (Gasoline engine models) or 100A (Diesel engine models) fusible link (letter A, located in the fuse
and fusible link box), and
l10A fuse (No.34, located in the fuse and fusible link box).
Terminal B supplies power to charge the battery and operate the vehicle's electrical system. Output voltage is
controlled by the IC regulator at terminal 4 (S) detecting the input voltage. The charging circuit is protected by
the 120A (Gasoline engine models) or 100A (Diesel engine models) link.
The alternator is grounded to the engine block.
With the ignition switch in the ON or START position, power is supplied
l10A fuse [No. 11, located in the fuse block (J/B)]
lto combination meter terminal 46 (LHD models) or terminal 59 (RHD models) for the charge warning
lamp.
Ground is supplied With power and ground supplied
lto terminal 64 (LHD models) or terminal 54 ( RHD models) of the combination meter
lthrough terminal 3 (L) of the alternator.
the charge warning lamp will illuminate. When the alternator is providing sufficient voltage with the engine run-
ning, the ground is opened and the charge warning lamp will go off.
If the charge warning lamp illuminates with the engine running, a fault is indicated.

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CHARGING SYSTEM
Trouble Diagnoses
EKS00319
Before conducting an alternator test, make sure that the battery is fully charged. A 30-volt voltmeter and suit-
able test probes are necessary for the test. The alternator can be checked easily by referring to the Inspection
Table.
lBefore starting, inspect the fusible link.
lUse fully charged battery.
WITH IC REGULATOR
NOTE:
lIf the inspection result is OK even though the charging system is malfunctioning, check the B terminal
connection. (Check the tightening torque.)
lWhen field circuit is open, check condition of rotor coil, rotor slip ring and brush. If necessary, replace
faulty parts with new ones.
MALFUNCTION INDICATOR
The IC regulator warning function activates to illuminate “CHARGE” warning lamp, if any of the following
symptoms occur while alternator is operating:
lExcessive voltage is produced.
lNo voltage is produced.
Removal and InstallationEKS0031A
REMOVAL (QR ENGINE MODELS)
1. Disconnect battery ground cable.
2. Remove alternator drive belt. Refer toEM-13, "
Checking Drive Belts"in EM section.
SEL338V

CHARGING SYSTEM
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3. Disconnect alternator harness mounting bolt, ground mounting
bolt, alternator connector and B terminal mounting nut.
4. Remove alternator mounting bolts.
5. Disconnect alternator assembly from vehicle upper side.
REMOVAL (YD ENGINE MODELS)
1. Remove alternator harness.
2. Loosen alternator upper nut and lower bolt.
3. Loosen drive belt.Refer toEM-110, "
Checking Drive Belts"in
EM section.
4. Remove alternator bracket bolts (two).
5. Remove alternator upper nut and lower bolt.
6. Remove alternator.
INSTALLATION
Install in the reverse order of removal, taking care of the following point.
lInstall alternator, and check tension of belt. Refer toEM-13, "Tension Adjustment"(QR engine models) or
EM-110, "
Tension Adjustment"(YD engine models) in “ENGINE MECHANICAL (EM)” section.
CAUTION:
Be sure to tighten B terminal mounting nut carefully.
QR engine models
YD engine models
SKIA0070E
MEL948N
Bterminalnut:
: 7.9 - 11.0 N·m (0.8 - 1.11 kg-m, 6.0 - 8.0 ft-lb)
Ground bolt:
:2.3-2.6N·m(0.23-0.27kg-m,20-23in-lb)
Alternator mounting bolt (lower side):
: 59 - 69 N·m (6.1 - 7.1 kg-m, 45 - 51 ft-lb)
Bterminalnut:
: 7.9 - 11.0 N·m (0.8 - 1.11 kg-m, 6.0 -8.0 ft-lb)
Ground bolt:
: 2.3 - 2.6 N·m (0.23 - 0.27 kg-m, 20 - 23 in-lb)
Alternator mounting bolt (lower side):
: 38 - 50 N·m (3.8 - 5.1 kg-m, 28 - 36 ft-lb)

STARTING SYSTEM
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STARTING SYSTEMPFP:00011
System DescriptionEKS0031F
M/T MODELS
Power is supplied at all times
lthrough 30A fusible link (letter J, located in the fuse and fusible link box)
lto ignition switch terminal 1.
With the ignition switch in the ON or START position, power is supplied
lfrom ignition switch terminal 5
lto starter motor harness connector terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.
A/T MODELS
Power is supplied at all times
lthrough 30A fusible link (letter J, located in the fuse and fusible link box)
lto ignition switch terminal 1.
With the ignition switch in the ON or START position, power is supplied
lthrough 10A fuse [No,13 located in the fuse block (J/B)]
lto park/neutral position relay terminal 1.
With the selector lever in the P or N position, ground is supplied
lto park/neutral position relay terminal 2
lthrough the park neutral position switch terminals 1 and 2,and
lthrough body grounds, F9 and F10.
Then park/neutral position relay is energized and power is supplied
lfrom park/neutral position relay terminal 3
lto starter motor harness connector terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.

STARTING SYSTEM
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Removal and InstallationEKS0031J
REMOVAL
M/T models
1. Disconnect negative battery cable.
2. Remove air duct. Refer toEM-15, "
AIR CLEANER AND AIR
DUCT"(QR engine models) orEM-112, "AIR CLEANER AND
AIR DUCT"(YD engine models).
3. Disconnect S terminal and B terminal from starter motor.
4. Remove starter motor mounting bolts.
5. Remove starter motor from upper side the vehicle.
A/T models
1. Disconnect negative battery cable.
2. Remove air duct and air cleaner assembly. Refer toEM-15, "
AIR
CLEANER AND AIR DUCT"(QR engine models) orEM-112,
"AIR CLEANER AND AIR DUCT"(YD engine models).
3. Remove A/T selector cable and harness from bracket.
4. Disconnect S terminal and B terminal from starter motor.
5. Remove starter motor from upper side the vehicle.
INSTALLATION
Install in the reverse order of removal.
QR20 engine models (M/T)
QR20 engine models (A/T)
YD22 engine models
PKIA0462E
PKIA0463E
Bterminalnut:
:9.81 - 11.8 N·m (1.0 - 1.2 kg-m, 87 - 112 in-lb)
Starter motor mounting nut:
Bolt a and b :
: 98.1 - 127.0 N·m (10.0 - 13.0 kg-m, 73 - 94 ft-lb)
Bterminalnut:
: 7.3 - 9.8 N·m (0.75 - 1.00 kg-m, 65 - 87 in-lb)
Starter motor mounting nut:
Bolt a :
: 41.2 - 52.0 N·m (4.2 - 5.3 kg-m, 31 - 38 ft - lb)
Bolt b :
: 98.1 - 127.0 N·m (10.0 -13.0 kg-m, 73 -94 ft-lb)
Bterminalnut:
: 9.81 - 11.8 N·m (1.0 - 1.2 kg-m, 87 - 112 in-lb)
Starter motor mounting nut:
: 41.2 - 52.0 N·m (4.2 - 5.3 kg-m, 31 - 38 ft-lb)