NISSAN TERRANO 2004 Service Repair Manual

YEL350D
STARTING SYSTEM
Construction (Cont'd)SC-18
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Magnetic Switch Check
Magnetic Switch Check
IBefore starting to check, disconnect battery ground cable.
I Disconnect ªMº terminal of starter motor.
1. Continuity test (between ªSº terminal and switch body). I No continuity ... Replace.
2. Continuity test (between ªSº terminal and ªMº terminal). I No continuity ... Replace.
Pinion/Clutch Check
1. Check to see if pinion locks in one direction and rotates
smoothly in the opposite direction.
I If it does not lock (or locks) in either direction or unusual
resistance is evident ... Replace.
2. Check pinion movement I If it is hard to move, apply grease or, if necessary, replace.
3. Check ball bearing. Spin outer race of ball bearing to ensure that it turns smoothly
without binding.
I Abnormal resistance ... Replace.
SEL555E
SEL556E
YEL546D
YEL547D
YEL548D
STARTING SYSTEM
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4. Inspect pinion teeth.I Replace pinion if teeth are worn or damaged. (Also check
condition of ring gear teeth.)
5. Inspect reduction gear teeth. I Replace reduction gear if teeth are worn of damaged.
(Also check condition of armature shaft gear teeth.)
Brush Check
BRUSH
Check wear of brush.
Wear limit length:Refer to SDS (SC-30).
I Excessive wear ... Replace.
BRUSH HOLDER
1. Perform insulation test between brush holder (positive side)
and its base (negative side).
I Continuity exists ... Replace.
2. Check brush to see if it moves smoothly. I If brush holder is bent, replace it; if sliding surface is dirty,
clean.
Field Coil Check
1. Continuity test (between field coil positive terminal and positive
brushes).
I No continuity ... Replace field coil.
2. Insulation test (between field coil positive terminal and yoke). I Continuity exists ... Replace field coil.
SEL014Z
YEL549D
YEL550D
SEL103E
STARTING SYSTEM
Pinion/Clutch Check (Cont'd)
SC-20
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Armature Check
1. Continuity test (between two segments side by side).I No continuity ... Replace.
2. Insulation test (between each commutator bar and shaft). I Continuity exists ... Replace.
3. Check commutator surface. I Rough ... Sand lightly with No. 500-600 emery paper.
4. Check diameter of commutator. Commutator minimum diameter:Refer to SDS (SC-30).
I Less than specified value ... Replace.
SEL625B
SEL104E
SEL020Z
SEL021Z
STARTING SYSTEM
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5. Check depth of insulating mold from commutator surface.I Less than 0.2 mm (0.008 in) ... Undercut to 0.5 - 0.8 mm
(0.020 - 0.031 in)
Assembly
Carefully observe the following instructions.
GREASE POINT
IRear cover metal
I Gear case metal
I Center bracket metal
I Frictional surface of pinion
I Moving portion of shift lever
I Plunger of magnetic switch
I Reduction gear
PINION PROTRUSION LENGTH ADJUSTMENT
Reduction gear type
Compare movement ª º 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 ªº:Refer to SDS (SC-30).
I Not in the specified value ... Adjust by adjusting plate.
SEL022Z
SEL497D
SEL573B
STARTING SYSTEM
Armature Check (Cont'd)
SC-22
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System Description
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) (ZD30DDTi engine models) through:
I10A fuse (No. 31, 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 (ZD30DDTi engine models). 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
I through 10A fuse [No. 12, located in the fuse block (J/B)]
I to combination meter terminal 28 for the charge warning lamp.
Ground is supplied to terminal 2 of the combination meter through terminal 1(L) (TD27Ti engine models) or
3(L) (ZD30DDTi engine models) 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 malfunction is indicated.
CHARGING SYSTEM
SC-23
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Wiring Diagram Ð CHARGE Ð
TD27Ti ENGINE MODELS
YEL055D
CHARGING SYSTEM
SC-24
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ZD30DDTi ENGINE MODELS
YEL056D
CHARGING SYSTEM
Wiring Diagram Ð CHARGE Ð (Cont'd)SC-25
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Trouble Diagnoses
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 Inspec-
tion Table.
IBefore starting, inspect the fusible link.
I Use fully charged battery.
WITH IC REGULATOR
NOTE:
IIf the inspection result is OK even though the charging system is malfunctioning, check the B terminal
connection. (Check the tightening torque.)
I When 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 ªCHARGEº warning lamp, if any of the following
symptoms occur while alternator is operating:
IExcessive voltage is produced.
I No voltage is produced.
SEL338V
CHARGING SYSTEM
SC-26
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Construction
MEL658K
YEL351D
CHARGING SYSTEM
SC-27
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