NISSAN X-TRAIL 2001 Service Repair Manual

CHARGING SYSTEM
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Removal and Installation EKS0031A
REMOVAL (QR ENGINE MODELS)
1. Disconnect negative battery cable.
2. Remove alternator drive belt. Refer to EM-12, "
Checking Drive Belts" in EM section.
3. Remove alternator harness mounting bolt, ground mounting
bolt, alternator connector and B terminal mounting nut.
4. Remove alternator mounting bolts.
5. Remove alternator assembly from vehicle upper side.
REMOVAL (YD ENGINE MODELS)
1. Disconnect negative battery cable.
2. Remove alternator harness mounting bolt, alternator connector
and B terminal mounting nut.
3. Remove drive belt.Refer to EM-118, "
Checking Drive Belts" in
EM section.
4. Remove alternator bracket mounting bolts and alternator
bracket.
5. Remove alternator mounting bolts.
6. Remove alternator assembly from vehicle upper side.
INSTALLATION
Install in the reverse order of removal, taking care of the following point.
●Install alternator, and check tension of belt. Refer to EM-12, "Tension Adjustment" (QR engine models) or
EM-118, "
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
PKIA2496E
MEL948N
B terminal nut:
: 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:
: 59 - 69 N·m (6.1 - 7.1 kg-m, 45 - 51 ft-lb)
B terminal nut:
: 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 (upper side):
: 16 - 20 N·m (1.6 - 2.1 kg-m, 12 - 15 ft-lb)
Alternator mounting bolt (lower side):
: 38 - 50 N·m (3.8 - 5.1 kg-m, 28 - 36 ft-lb)

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CHARGING SYSTEM
Disassembly and Assembly
EKS0031B
PKIA0460E
1. Pulley 2. Front cover 3. Front bearing
4. Retainer 5. Rotor 6. Slip ring
7. Stator 8. Fan guide 9. IC voltage regulator assembly
10. Diode assembly 11. Rear cover
Through-bolt:
: 3.2 - 3.9 N·m (0.33 - 0.40kg-m, 29 - 35 in-lb)

CHARGING SYSTEM
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DisassemblyEKS0031C
REAR COVER
CAUTION:
Rear cover may be hard to remove because a ring is used to lock outer race of rear bearing. To facili-
tate removal of rear cover, heat just bearing box section with a 200W soldering iron.
Do not use a heat gun, as it can damage diode assembly.
PKIA0461E
1. Pulley 2. Front cover 3. Front bearing
4. Retainer 5. Rotor 6. Rear bearing
7. Stator 8. IC voltage regulator assembly 9. Diode assembly
10. Rear cover
Through-bolt
: 3.5 - 5.3 N·m(0.36 - 0.54 kg-m, 31.0 - 46.9 in-lb)
Pulley nut:
: 99 - 137 N·m(10.1 - 14.0 kg-m, 73.0 - 101.1 ft-lb)
SEL032Z

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CHARGING SYSTEM
REAR BEARING
CAUTION:
●Do not reuse rear bearing after removal. Replace with a new one.
●Do not lubricate rear bearing outer race.
InspectionEKS0031D
ROTOR CHECK
1. Resistance test
●Not within the specified values... Replace rotor.
2. Insulator test
●Continuity exists... Replace rotor.
3. Check slip ring for wear.
●Not within the specified values... Replace rotor.
BRUSH CHECK
1. Check smooth movement of brush.
●Not smooth... Check brush holder and clean.
2. Check brush for wear.
●Replace brush if it is worn down to the limit line.
PULLEY CHECK(WITH CLUTCH TYPE)
1. Check for locking (Outer ring is turned counterclockwise when
viewed from the rear).
●If it rotates in both directions... Replace pulley.
2. Check for dragging (Outer ring is turned clockwise when viewed
from the rear).
●If it locks or unusual resistance is felt... Replace pulley.
STATOR CHECK
1. Continuity test
●No continuity... Replace stator.Resistance : Refer to SDS.SC-33,
"Alternator"
Slip ring minimum
outer diameter:Refer to SDS.SC-33,
"Alternator"SEL033Z
SEL631DA
PKIA0458E
SEL108E

CHARGING SYSTEM
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2. Ground test
●Continuity exists... Replace stator.
AssemblyEKS0031E
RING FITTING IN REAR BEARING
●Fix ring into groove in rear bearing so that it is as close to the
adjacent area as possible.
CAUTION:
Do not reuse rear bearing after removal.
REAR COVER INSTALLATION
1. Fit brush assembly, diode assembly, regulator assembly and
stator.
2. Push brushes up with fingers and install them to rotor.
Take care not to damage slip ring sliding surface.
SEL109E
SEL044Z
SEL048Z
SEL049Z

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STARTING SYSTEM
STARTING SYSTEM
PFP:00011
System Description EKS0031F
M/T MODELS
Power is supplied at all times
●through 30A fusible link (letter J, located in the fuse and fusible link box)
●to ignition switch terminal 1.
With the ignition switch in the START position, power is supplied
●from ignition switch terminal 5
●to 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
●through 30A fusible link (letter J, located in the fuse and fusible link box)
●to ignition switch terminal 1.
With the ignition switch in the START position, power is supplied
●from ignition switch terminal 5
●to park/neutral position relay terminal 5.
With the ignition switch in the ON or START position, power is supplied
●through 10A fuse [No,13 located in the fuse block (J/B)]
●to park/neutral position relay terminal 1.
With the selector lever in the P or N position, ground is supplied
●to park/neutral position relay terminal 2
●through the park/neutral position switch terminals 1 and 2,and
●through body grounds F9 and F10.
Then park/neutral position relay is energized and power is supplied
●from park/neutral position relay terminal 3
●to 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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Wiring Diagram — START —/M/T modelsEKS0031G
TKWA0056E

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STARTING SYSTEM
Wiring Diagram — START —/A/T models
EKS0031H
TKWA0057E

STARTING SYSTEM
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Trouble DiagnosesEKS0031I
If any abnormality is found, immediately disconnect battery negative terminal.
SEL761W

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STARTING SYSTEM
Removal and Installation
EKS0031J
REMOVAL
M/T models
1. Disconnect negative battery cable.
2. Remove air duct. Refer to EM-14, "
AIR CLEANER AND AIR
DUCT" (QR engine models) or EM-120, "AIR CLEANER AND
AIR DUCT" (YD engine models).
3. Disconnect S connector 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 to EM-14, "
AIR
CLEANER AND AIR DUCT" (QR engine models) or EM-120,
"AIR CLEANER AND AIR DUCT" (YD engine models).
3. Remove A/T selector cable and harness from bracket.
4. Disconnect S connector and B terminal from starter motor.
5. Remove starter motor from upper side the vehicle.
INSTALLATION
Install in the reverse order of removal.
QR engine models (M/T)
QR engine models (A/T)
YD22 engine models
PKIA2741E
PKIA2742E
B terminal nut:
:9.81 - 11.8 N·m (1.0 - 1.2 kg-m, 87 - 112 in-lb)
Starter motor mounting bolt:
: 98.1 - 127.0 N·m (10.0 - 13.0 kg-m, 73 - 94 ft-lb)
B terminal nut:
: 7.3 - 9.8 N·m (0.75 - 1.00 kg-m, 65 - 87 in-lb)
Starter motor mounting bolt:
Upper side :
: 41.2 - 52.0 N·m (4.2 - 5.3 kg-m, 31 - 38 ft - lb)
Lower side :
: 98.1 - 127.0 N·m (10.0 -13.0 kg-m, 73 -94 ft-lb)
B terminal nut:
: 9.81 - 11.8 N·m (1.0 - 1.2 kg-m, 87 - 112 in-lb)
Starter motor mounting bolt:
: 41.2 - 52.0 N·m (4.2 - 5.3 kg-m, 31 - 38 ft-lb)