NISSAN ALMERA 2001 Service Manual

SEL633BA
+Not in the specified value ... Adjust by adjusting plate.
STARTING SYSTEM
Assembly (Cont'd)
SC-25

System DescriptionNJSC0009SEDANNJSC0009S01The 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:
+10A fuse (No. 33, 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 80A (A/T models with QG13DE engine and M/T models with gasoline engine) or 100A (A/T models
except QG13DE engine and diesel engine models) fusible link.
The alternator is grounded to the engine block.
With the ignition switch in the ON or START position, power is supplied
+through 10A fuse [No. 30, located in the fuse block (J/B)]
+to combination meter terminal 17 (Models with tachometer) or 22 (Models without tachometer) for the
charge warning lamp.
Ground is supplied to terminal 62 (Models with tachometer) or 61 (Models without tachometer) of the combi-
nation meter through terminal 3 (L) of the alternator. With power and ground supplied, the charge warning lamp
will illuminate. When the alternator is providing sufficient voltage with the engine running, 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.
HATCHBACKNJSC0009S02The 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:
+10A fuse (No. 33, 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 80A (Gasoline engine models without daytime light system) or 100A (A/T models, diesel engine mod-
els and gasoline engine models with daytime light system) fusible link.
The alternator is grounded to the engine block.
With the ignition switch in the ON or START position, power is supplied
+through 10A fuse [No. 30, located in the fuse block (J/B)]
+to combination meter terminal 40 or 1
Ground is supplied to terminal 1 or 28 of the combination meter through terminal 3 (L) of the alternator. With
power and ground supplied, the charge warning lamp will illuminate. When the alternator is providing suffi-
cient voltage with the engine running, 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
System Description
SC-26

Wiring Diagram Ð CHARGE Ð/SedanNJSC0010GASOLINE ENGINE MODELSNJSC0010S02
HSC014
CHARGING SYSTEM
Wiring Diagram Ð CHARGE Ð/Sedan
SC-27

DIESEL ENGINE MODELSNJSC0010S03
HSC015
CHARGING SYSTEM
Wiring Diagram Ð CHARGE Ð/Sedan (Cont'd)
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Wiring Diagram Ð CHARGE Ð/HatchbackNJSC0029
YEL330C
CHARGING SYSTEM
Wiring Diagram Ð CHARGE Ð/Hatchback
SC-29

Trouble DiagnosesNJSC0011Before 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 Inspec-
tion Table.
+Before starting, inspect the fusible link.
+Use fully charged battery.
WITH IC REGULATORNJSC0011S01
SEL338V
NOTE:
+If the inspection result is OK even though the charging system is malfunctioning, check the B terminal
connection. (Check the tightening torque.)
+When field circuit is open, check condition of rotor coil, rotor slip ring and brush. If necessary, replace faulty
parts with new ones.
MALFUNCTION INDICATORNJSC0011S02The IC regulator warning function activates to illuminate ªCHARGEº warning lamp, if any of the following
symptoms occur while alternator is operating:
+Excessive voltage is produced.
+No voltage is produced.
CHARGING SYSTEM
Trouble Diagnoses
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ConstructionNJSC0012
MEL480HB
MEL141LC
CHARGING SYSTEM
Construction
SC-31

MEL141LA
MEL142L
CHARGING SYSTEM
Construction (Cont'd)
SC-32

MEL143LA
MEL144L
CHARGING SYSTEM
Construction (Cont'd)
SC-33

MEL497L
MEL145L
Removal and InstallationNJSC0013REMOVAL (QG ENGINE)NJSC0013S011. Loosen drive belt idler pulley.
2. Remove drive belt idler pulley (include tightening screw).
3. Remove alternator harness.
4. Remove alternator upper bolt and lower bolt.
5. Remove alternator.
MEL948N
REMOVAL (YD ENGINE)NJSC0013S031. Remove alternator harness.
2. Loosen alternator upper nut and lower bolt.
3. Loosen drive belt.
4. Remove alternator bracket bolts (two).
5. Remove alternator upper nut and lower bolt.
6. Remove alternator.
CHARGING SYSTEM
Construction (Cont'd)
SC-34