NISSAN X-TRAIL 2003 Electronic Repair Manual

BATTERY
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lCheck battery type and determine the specified current using the table shown above.
lAfter starting charging, adjustment of charging current is not necessary.
Fig. 5 ADDITIONAL CHARGE (Standard charge)
CAUTION:
lDo not use standard charge method on a battery whose specific gravity is less than 1.100.
lSet charging current to value specified in Fig. 4. If charger is not capable of producing specified
current value, set its charging current as close to that value as possible.
lKeep battery away from open flame while it is being charged.
lWhen connecting charger, connect leads first, then turn on charger. Do not turn on charger first,
as this may cause a spark.
lIf battery temperature rises above 60°C(140°F), stop charging. Always charge battery when its
temperature is below 60°C (140°F).
CON-VERTED
SPECIFIC GRAV-
ITYBATTERY TYPE28B19R(L) 34B19R(L) 46B24R(L) 55B24R(L) 50D23R(L) 55D23R(L) 025 YUASA type code
027 YUASA type code65D26R(L) 80D26R(L) 067 YUASA type code 096 YUASA type code75D31R(L) 95D31R(L) 115D31R(L) 110D26R(L)95E41R(L) 130E41R(L)
1.100 - 1.130 4.0 (A) 5.0 (A) 6.0 (A) 7.0 (A)8.0
(A)9.0 (A)13.
0
(A)
1.130 - 1.160 3.0 (A) 4.0 (A) 5.0 (A) 6.0 (A)7.0
(A)8.0 (A)11 .
0
(A)
1.160 - 1.190 2.0 (A) 3.0 (A) 4.0 (A) 5.0 (A)6.0
(A)7.0 (A)9.0
(A)
1.190 - 1.220 2.0 (A) 2.0 (A) 3.0 (A) 4.0 (A)5.0
(A)5.0 (A)7.0
(A)
*:SC-6
SEL759W

SC-10
BATTERY
C: QUICK CHARGE
Fig. 6 INITIAL CHARGING CURRENT SETTING AND CHARGING TIME (Quick charge)
lCheck battery type and determine the specified current using the table shown above.
lAfter starting charging, adjustment of charging current is not necessary.
CAUTION:
lDo not use quick charge method on a battery whose specific gravity is less than 1.100.
lSet initial charging current to value specified in Fig. 6. If charger is not capable of producing spec-
ified current value, set its charging current as close to that value as possible.
lKeep battery away from open flame while it is being charged.
lWhen connecting charger, connect leads first, then turn on charger. Do not turn on charger first,
as this may cause a spark.
lBe careful of a rise in battery temperature because a large current flow is required during quick-
charge operation.
If battery temperature rises above 60°C (140°F), stop charging. Always charge battery when its
temperature is below 60°C(140°F).
lDo not exceed the charging time specified in Fig. 6, because charging battery over the charging
time can cause deterioration of the battery.
*:SC-6
SEL760W
BATTERY TYPE
28B19R(L) 34B19R(L) 46B24R(L)
55B24R(L) 50D23R(L) 55D23R(L)
65D26R(L) 80D26R(L) 025 [YUASA type code] 027 [YUASA type code] 067 [YUASA type code]
096 [YUASA type code]75D31R(L)
95D31R(L) 115D31R(L) 110D26R(L)95E41R(L) 130E41R(L)
CURRENT [A] 10 (A) 15 (A) 20 (A) 25 (A) 30 (A)40
(A)
CONVERTED SPECIFIC GRAVITY1.100 -
1.1302.5 hours
1.130 -
1.1602.0 hours
1.160 -
1.1901.5 hours
1.190 -
1.2201.0 hours
Above
1.2200.75 hours (45 min.)

BATTERY
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Removal and InstallationEKS00315
Observe the following to ensure proper servicing.
CAUTION:
lWhen removing, remove negative terminal first. But for
installation, install positive terminal first.
lTighten parts to the specified torque shown below.
Battery fix frame mounting nut:
:3.5-5.3N·m(0.36-0.54kg-m,31-46in-lb)
Battery cable tightening nut:
:3.0-5.0N·m(0.31-0.51kg-m,27-44in-lb)
SKIA0068E

SC-12
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.

CHARGING SYSTEM
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Wiring Diagram — CHARGE —EKS00317
TKWA0058E

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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)

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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

CHARGING SYSTEM
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DisassemblyEKS0031C
REAR COVER
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 & nut:
L R1110 -71 3
: 3.14 - 3.9 N·m(0.320 - 0.398 kg-m, 27.8 - 34.5 in-lb)
A3TB0771
: 3.5 - 5.3 N·m(0.36 - 0.54 kg-m, 31.0 - 46.9 in-lb)
Pulley mounting nut:
: 99 - 137 N·m(10.1 - 14.0 kg-m, 73.0 - 101.1 ft-lb)
SEL032Z

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CHARGING SYSTEM
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:
lDo not reuse rear bearing after removal. Replace with a new one.
lDo not lubricate rear bearing outer race.
InspectionEKS0031D
ROTOR CHECK
1. Resistance test
lNot within the specified values... Replace rotor.
2. Insulator test
lContinuity exists... Replace rotor.
3. Check slip ring for wear.
lNot within the specified values... Replace rotor.
BRUSH CHECK
1. Check smooth movement of brush.
lNot smooth... Check brush holder and clean.
2. Check brush for wear.
lReplace 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).
lIf it rotates in both directions... Replace pulley.
2. Check for dragging (Outer ring is turned clockwise when viewed
from the rear).
lIf it locks or unusual resistance is felt... Replace pulley. Resistance : Refer to SDS.SC-34,
"Alternator"
Slip ring minimum
outer diameter:Refer to SDS.SC-34,
"Alternator"SEL033Z
SEL631DA
PKIA0458E