NISSAN ALMERA N16 2003 Electronic Repair Manual

SEL020Z
3. Check commutator surface.
Rough ... Sand lightly with No. 500 - 600 emery paper.
SEL021Z
4. Check diameter of commutator.
Commutator minimum diameter:
Refer to SDS (SC-37).
Less than specified value ... Replace.
SEL022Z
5. Check depth of insulating mold from commutator surface.
Less than 0.2 mm (0.008 in) ... Undercut to 0.5 to 0.8 mm
(0.020 to 0.031 in)
AssemblyNJSC0020Apply high-temperature grease to lubricate the bearing, gears and
frictional surface when assembling the starter.
Carefully observe the following instructions.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
EL
IDX
STARTING SYSTEM
Inspection (Cont’d)
SC-25

SEL026Z
PINION PROTRUSION LENGTH ADJUSTMENTNJSC0020S01Clearance (QG engine models)NJSC0020S0101With pinion driven out by magnetic switch, push pinion back to
remove slack and measure clearance “” between the front edge
of the pinion and the pinion stopper.
Clearance “”:
Refer to SDS (SC-37).
MEL140L
Movement (YD engine models)NJSC0020S0102Compare movement “” in height of pinion when it is pushed out
with magnetic switch energized and when it is pulled out by hand
until it touches stopper.
Movement “”:
Refer to SDS (SC-37).
SEL633BA
Not in the specified value ... Adjust by adjusting plate.
STARTING SYSTEM
Assembly (Cont’d)
SC-26

System DescriptionNJSC0009The 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. 39, 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 100A 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 30
Ground is supplied to terminal 18 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 sufficient volt-
age 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.GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
EL
IDX
CHARGING SYSTEM
System Description
SC-27

Wiring Diagram — CHARGE —NJSC0010
YEL607D
CHARGING SYSTEM
Wiring Diagram — CHARGE —
SC-28

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 “CHARGE” warning lamp, if any of the following
symptoms occur while alternator is operating:
Excessive voltage is produced.
No voltage is produced.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
EL
IDX
CHARGING SYSTEM
Trouble Diagnoses
SC-29

ConstructionNJSC0012
MEL480HB
MEL141LC
CHARGING SYSTEM
Construction
SC-30

MEL141LA
MEL142L
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
EL
IDX
CHARGING SYSTEM
Construction (Cont’d)
SC-31

MEL143LA
MEL144L
CHARGING SYSTEM
Construction (Cont’d)
SC-32

MEL497L
MEL145L
Removal and InstallationNJSC0013REMOVAL (QG ENGINE MODELS)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 MODELS)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.
GI
MA
EM
LC
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
EL
IDX
CHARGING SYSTEM
Construction (Cont’d)
SC-33

INSTALLATIONNJSC0013S02To install, reverse the removal procedure.
SEL032Z
DisassemblyNJSC0021REAR COVERNJSC0021S01CAUTION:
Rear cover may be hard to remove because a ring is used to
lock outer race of rear bearing. To facilitate 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 BEARINGNJSC0021S02CAUTION:
Do not reuse rear bearing after removal. Replace with a
new one.
Do not lubricate rear bearing outer race.
SEL033Z
InspectionNJSC0022ROTOR CHECKNJSC0022S011. Resistance test
Resistance: Refer to SDS (SC-38).
Not within the specified values ... Replace rotor.
2. Insulator test
Continuity exists ... Replace rotor.
3. Check slip ring for wear.
Slip ring minimum outer diameter:
Refer to SDS (SC-38).
Not within the specified values ... Replace rotor.
CHARGING SYSTEM
Removal and Installation (Cont’d)
SC-34