NISSAN X-TRAIL 2003 Service Repair Manual

CHARGING SYSTEM
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Disassembly and AssemblyEKS0031B
QR ENGINE MODELS
1. Stator 2. Rear bearing 3. Rotor
4. Retainer 5. Front bearing 6. Front cover
7. Pulley 8. Fan guide 9. Labyrinth seal
10. IC voltage regulator assembly 11. Diode assembly 12. Rear cover
13. Terminal assembly 14. Through-bolt
PKIA4856E

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CHARGING SYSTEM

YD ENGINE MODELS
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.
REAR BEARING
CAUTION:

Do not reuse rear bearing after removal. Replace with a new one.

Do not lubricate rear bearing outer race.
1. Rear bearing 2. Rotor 3. Retainer
4. Front bearing 5. Through bolt 6. Front cover
7. Pulley 8. Pulley nut 9. Stator
10. IC voltage regulator assembly 11. Diode assembly 12. Rear cover
13. B terminal
PKIA4857E
SEL032Z

CHARGING SYSTEM
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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-34, "
Alternator" .
Slip ring minimum
outer diameter: Refer to SDS. SC-34, "
Alternator" .
SKIB0463E
SEL631DA
PKIA0458E
SKIB0464E

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CHARGING SYSTEM

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.
SKIB0465E
SEL044Z
SEL048Z
SEL049Z

STARTING SYSTEM
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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.

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STARTING SYSTEM

Wiring Diagram — START —/M/T modelsEKS0031G
TKWA0056E

STARTING SYSTEM
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Wiring Diagram — START —/A/T modelsEKS0031H
TKWA0057E

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STARTING SYSTEM

Trouble DiagnosesEKS0031I
If any malfunction is found, immediately disconnect the battery cable from the negative terminal.
SEL761W

STARTING SYSTEM
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Removal and Installation EKS0031J
REMOVAL
M/T models
1. Disconnect the battery cable from the negative terminal.
2. Remove air duct. Refer to EM-15, "
AIR CLEANER AND AIR
DUCT" (QR engine models) or EM-133, "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 upward.
A/T models
1. Disconnect the battery cable from the negative terminal.
2. Remove air duct and air cleaner assembly. Refer to EM-15, "
AIR
CLEANER AND AIR DUCT" (QR engine models) or EM-133,
"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 upward.
INSTALLATION
Installation is 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)

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STARTING SYSTEM

Disassembly and Assembly EKS0031K
QR ENGINE MODELS
M/T Models
1. Sleeve bearing 2. Gear case 3. Stopper clip
4. Pinion stopper 5. Pinion assembly 6. Internal gear
7. Plate 8. Packing 9. Adjusting plate
10. Magnetic switch assembly 11. Planetary gear 12. Ball
13. Packing 14. Yoke 15. Armature
16. Brush holder assembly 17. Rear bearing 18. Rear cover
Through-bolt:
: 4.1 - 7.4 N·m (0.45 - 0.72 kg-m, 39.1 - 62.5 in-lb)
PKIA0464E