Nissan Murano Z50 (2005 year). Manual — part 209
STARTING SYSTEM
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Removal and Installation
AKS004F2
REMOVAL
1.
Remove battery. Refer to
SC-8, "Removal and Installation"
.
2.
Remove air duct (inlet). Refer to
EM-16, "AIR CLEANER AND AIR DUCT"
3.
Remove battery bracket, using power tools.
4.
Remove fluid charging pipe. Refer to
.
5.
Disconnect “S” connector.
6.
Remove “B” terminal nut.
7.
Remove starter motor mounting bolts, using power tools.
8.
Remove starter motor upward from the vehicle.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
1.
Starter motor
2.
B terminal harness
3.
B terminal nut
4.
S connector
PKIA2424E
PKIA2851E
PKIA2425E
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STARTING SYSTEM
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2005 Murano
Disassembly and Assembly
AKS004F3
INSPECTION AFTER DISASSEMBLY
Pinion/Clutch Check
1.
Inspect pinion teeth.
●
Replace pinion if teeth are worn or damaged. (Also check condition of ring gear teeth.)
2.
Inspect reduction gear teeth.
●
Replace reduction gear if teeth are worn or damaged. (Also check condition of armature shaft gear
teeth.)
3.
Check to see if pinion locks in one direction and rotates smoothly in the opposite direction.
●
If it locks or rotates in both directions, or unusual resistance is evident, replace.
1.
Stopper ring
2.
Pinion stopper
3.
Pinion assembly
4.
Pinion spring
5.
Front bracket assembly
6.
Shift lever
7.
Plate
8.
Packing
9.
Plate
10. Magnetic switch assembly
11. Clutch gear assembly
12. Internal gear assembly
13. Gear shaft assembly
14. Gear assembly
15. Ball
16. Packing
17. Yoke assembly
18. Armature assembly
19. Brush assembly
20. Metal
21. Rear cover
Through-bolt
: 8 N·m (0.84 kg-m, 71 in-lb)
PKIA2426E
CHARGING SYSTEM
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CHARGING SYSTEM
PFP:23100
System Description
AKS004F5
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
●
through 10A fuse (No. 33, located in the fuse and fusible link block)
●
to alternator terminal 4 (“S” terminal).
“B” terminal 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” terminal) detecting the input voltage.
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. 14, located in the fuse block (J/B)]
●
to combination meter terminal 20 for the charge warning lamp.
Ground is supplied
●
to combination meter terminal 4
●
through alternator terminal 3 (“L” terminal)
●
to alternator terminal 2 (“E” terminal)
●
through ground E29.
With power and ground supplied, the charge warning lamp will illuminate. When the alternator is providing suf-
ficient 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.
MALFUNCTION INDICATOR
The IC regulator warning function activates to illuminate charge warning lamp, if any of the following symp-
toms occur while alternator is operating:
●
Excessive voltage is produced.
●
No voltage is produced.
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CHARGING SYSTEM
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2005 Murano
Wiring Diagram — CHARGE —
AKS004F6
TKWA0735E
CHARGING SYSTEM
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Trouble Diagnosis with Battery/Starting/Charging System Tester
AKS004F7
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter and alternator test segments must be done
as a set from start to finish.
Before starting, perform the preliminary inspection. Refer to
SC-22, "PRELIMINARY INSPECTION"
1.
Turn off all loads on the vehicle electrical system.
2.
Perform battery and starting system test with Battery/Starting/
Charging system tester.
3.
Press “ENTER” to begin the charging system test.
4.
Start engine.
5.
Press “ENTER” until “LOADS OFF REV ENGINE 5 SEC” is dis-
played.
6.
Raise and hold the engine speed at 1,500 to 2,000 rpm for about
5 seconds, then return the engine to idle.
Once the increase in engine rpm is detected, press “ENTER” to
continue.
NOTE:
●
If after 30 seconds an increase in engine idle speed is not
detected, “RPM NOT DETECTED” will display.
●
Some engines may have a higher idle initially after starting,
particularly when the engine is cold. The tester may detect
this without any other action being taken. If this occurs, con-
tinue on with the testing process. The final results will not be affected.
7.
The tester now checks the engine at idle and performs the
DIODE/RIPPLE check.
8.
When complete, the tester will prompt you to turn on the follow-
ing electrical loads.
●
Heater fan set to highest speed. Do not run the A/C or wind-
shield defroster.
●
Headlamp high beam
●
Rear window defogger
NOTE:
Do not run the windshield wipers or any other cyclical loads.
9.
Press “ENTER” to continue.
SEL417X
SEL418X
SEL419X
SEL420X
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CHARGING SYSTEM
Revision: 2005 August
2005 Murano
10. Raise and hold the engine speed at 1,500 to 2,000 rpm for about
5 seconds, then return the engine to idle. Once the increase in
engine rpm is detected, press “ENTER” to continue.
NOTE:
If after 30 seconds an increase in engine idle speed is not
detected, “RPM NOT DETECTED” will be displayed. Press
“ENTER” to restart the test.
11. Diagnostic result is displayed on the tester. Refer to
"DIAGNOSTIC RESULT ITEM CHART"
.
12. Press “ENTER” then test output code is displayed. Record the
test output code on the repair order.
13. Toggle back to the “DIAGNOSTIC SCREEN” for test results.
DIAGNOSTIC RESULT ITEM CHART
SEL421X
SEL422X
SEL577X
Diagnostic item
Service procedure
CHARGING SYSTEM NORMAL
Charging system is normal and will also show DIODE RIPPLE test result.
NO CHARGING VOLTAGE
Go to
LOW CHARGING VOLTAGE
HIGH CHARGING VOLTAGE
DIODE RIPPLE NORMAL
Diode ripple is OK and will also show CHARGING VOLTAGE test result.
EXCESS RIPPLE DETECTED
Replace the alternator. Perform “DIODE RIPPLE” test again using Battery/Starting/Charging sys-
tem tester to confirm repair.
DIODE RIPPLE NOT DETECTED
CHARGING SYSTEM
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WORK FLOW
*1
SC-23, "Check “L” Terminal Circuit
(Open)"
*2
SC-23, "Check “L” Terminal Circuit
(Short)"
*3
SC-24, "Check “S” Terminal Circuit"
*4
SC-25, "Check “B” Terminal Circuit"
*5
SC-27, "ALTERNATOR PULLEY
INSPECTION"
SKIB0527E
SC-22
CHARGING SYSTEM
Revision: 2005 August
2005 Murano
PRELIMINARY INSPECTION
1.
CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
OK or NG
OK
>> GO TO 2.
NG
>> Repair battery terminals connection.
2.
CHECK FUSE AND FUSIBLE LINK
Check for blown alternator and combination meter fuses.
OK or NG
OK
>> GO TO 3.
NG
>> If fuse is blown, be sure eliminate cause of malfunction before installing new fuse.
3.
CHECK “E” TERMINAL CONNECTION
Check if “E” terminal is clean and tight.
OK or NG
OK
>> GO TO 4.
NG
>> Repair “E” terminal connection.
4.
CHECK ALTERNATOR DRIVE BELT TENSION
Check alternator drive belt tension. Refer to
OK or NG
OK
>> INSPECTION END
NG
>> Repair as needed.
Unit
Power source (Power supply terminals)
Fuse No.
Alternator
Battery (“S” terminal)
33
Combination meter
Ignition switch ON (“L” terminal)
14
CHARGING SYSTEM
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DIAGNOSTIC PROCEDURE 1
Check “L” Terminal Circuit (Open)
1.
CHECK “L” TERMINAL CONNECTION
1.
Turn ignition switch OFF.
2.
Check if “L” terminal is clean and tight.
OK or NG
OK
>> GO TO 2.
NG
>> Repair “L” terminal connection. Confirm repair by performing complete Battery/Starting/Charging
system test.
2.
CHECK “L” TERMINAL CIRCUIT (OPEN)
1.
Disconnect alternator connector.
2.
Apply ground to alternator harness connector F27 terminal 3
(BR) with the ignition switch in the ON position.
OK or NG
OK
NG
>> Check the following.
●
Charge warning lamp (combination meter)
●
Harness for open between combination meter and
fuse
●
Harness for open between combination meter and alternator
DIAGNOSTIC PROCEDURE 2
Check “L” Terminal Circuit (Short)
1.
CHECK “L” TERMINAL CIRCUIT (SHORT)
1.
Turn ignition switch OFF.
2.
Disconnect alternator connector.
3.
Turn ignition switch ON.
Charge warning lamp should light up?
YES
>> Check the following.
●
Harness for short between combination meter and alternator
●
Charge warning lamp (Combination meter)
NO
3 (BR) – Ground
: Charge warning lamp
should light up.
PKIB5304E
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CHARGING SYSTEM
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2005 Murano
DIAGNOSTIC PROCEDURE 3
Check “S” Terminal Circuit
1.
CHECK “S” TERMINAL CONNECTION
1.
Turn ignition switch OFF.
2.
Check if “S” terminal is clean and tight.
OK or NG
OK
>> GO TO 2.
NG
>> Repair “S” terminal connection. Confirm repair by performing complete Battery/Starting/Charging
system test.
2.
CHECK ALTERNATOR “S” TERMINAL CIRCUIT
1.
Disconnect alternator connector.
2.
Check voltage between alternator harness connector F27 termi-
nal 4 (Y/B) and ground.
OK or NG
OK
>> Go to
.
NG
>> Check harness for open between alternator and fuse.
4 (Y/B) – Ground
: Battery voltage
PKIB5305E
CHARGING SYSTEM
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DIAGNOSTIC PROCEDURE 4
Check “B” Terminal Circuit
1.
CHECK “B” TERMINAL CONNECTION
1.
Turn ignition switch OFF.
2.
Check if “B” terminal is clean and tight.
OK or NG
OK
>> GO TO 2.
NG
>> Repair “B” terminal connection. Confirm repair by performing complete Battery/Starting/Charging
system test.
2.
CHECK ALTERNATOR “B” TERMINAL CIRCUIT
Check voltage between alternator “B” terminal F26 terminal 1 (B/R)
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open between alternator and battery.
3.
CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1.
Start engine.
2.
When engine running at idle and warm, check voltage between
alternator “B” terminal F26 terminal 1 (B/R) and battery positive
terminal.
OK or NG
OK
NG
>> Check harness between battery and alternator for poor
continuity.
1 (B/R) – Ground
: Battery voltage
PKIA2944E
1 (B/R) – Battery positive terminal
: Less than 0.2 V
PKIA2366E
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CHARGING SYSTEM
Revision: 2005 August
2005 Murano
Removal and Installation
AKS004F8
REMOVAL
1.
Disconnect the battery cable from the negative terminal.
2.
Remove engine undercover, using power tools.
3.
Remove engine right side undercover.
4.
Remove cooling fan. Refer to
5.
Remove exhaust manifold cover (left side) and three way catalyst cover.
6.
Remove engine main harness (left side) clip.
7.
Remove oil pressure sensor harness clip and connector.
8.
Remove air conditioner compressor switch harness connector.
9.
Remove alternator and air conditioner compressor belt. Refer to
EM-14, "Removal and Installation"
.
10. Remove idler pulley.
11. Remove alternator mounting nut using power tools.
12. Remove through-bolt.
1.
Through-bolt
2.
Cylinder block
3.
Timing chain case
4.
Alternator mounting nut
5.
Alternator
6.
Alternator connector
7.
B terminal harness
8.
B terminal nut
9.
Alternator mounting bolt
10. Alternator bracket
11. Alternator bracket mounting bolt
PKIA2926J
PKIA2431E
CHARGING SYSTEM
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13. Disconnect alternator connector.
14. Remove “B” terminal nut.
15. Remove ground harness clip and ground harness mounting nut.
16. Remove alternator mounting bolt, using power tools.
17. Remove alternator bracket mounting bolt and alternator bracket.
18. Remove alternator upward from the vehicle.
NOTE:
Move alternator to battery side, then remove alternator upward.
ALTERNATOR PULLEY INSPECTION
Perform the following.
●
Make sure that alternator pulley does not rattle.
●
Make sure that alternator pulley nut is tight.
INSTALLATION
Installation is the reverse order of removal.
●
Install alternator, and check tension of belt. Refer to
CAUTION:
Be sure to tighten “B” terminal nut carefully.
PKIA2432E
PKIA2433E
Alternator pulley nut:
: 74 N·m (7.5 kg-m, 55 ft-lb)
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CHARGING SYSTEM
Revision: 2005 August
2005 Murano
Disassembly and Assembly
AKS004F9
1.
Stator
2.
Rear bearing
3.
Rotor assembly
4.
Retainer
5.
Front bearing
6.
Front cover
7.
Pulley
8.
Pulley nut
9.
Fan guide
10. Double labyrinth seal
11. IC voltage regulator assembly
12. Diode assembly
13. Rear cover
14. Terminal set
15. Through-bolt
PKIB6947E
SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Battery
AKS004FA
Starter
AKS004FB
Alternator
AKS004FC
Standard
Option
(With Intelligent Key)
Type
80D23L
110D26L
Capacity
12 V - 52 AH
12 V - 64 AH
Cold cranking current (For reference value)
582 A
720 A
Type
M1T68681
MITSUBISHI make
Reduction gear type
System voltage
12 V
No-load
Terminal voltage
11 V
Current
Less than 90 A
Revolution
More than 2,750 rpm
Minimum diameter of commutator
28.8 mm (1.134 in)
Minimum length of brush
5.5 mm (0.217 in)
Brush spring tension
15.0 - 20.4 N (1.53 - 20.8 kg, 3.3 - 4.5 lb)
Clearance between bearing metal and armature shaft
Less than 0.2 mm (0.008 in)
Movement in height of pinion assembly
0.5 - 2.0 mm (0.020 - 0.079 in)
Type
LR1110 - 723E
HITACHI make
Nominal rating
12 V - 110 A
Ground polarity
Negative
Minimum revolution under no-load (When 13.5 V is applied)
Less than 1,100 rpm
Hot output current (When 13.5 V is applied)
(More than 35 A/1,300 rpm)
More than 70 A/1,800 rpm
More than 91 A/2,500 rpm
More than 110 A/5,000 rpm
Regulated output voltage
14.1 - 14.7 V
Minimum length of brush
More than 6.00 mm (0.236 in)
Brush spring pressure
1.00 - 3.43 N (102 - 350 g, 3.60 - 12.34 oz)
Slip ring minimum outer diameter
More than 26.0 mm (1.024 in)
Rotor (Field coil) resistance
2.16 - 2.45
Ω
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SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2005 August
2005 Murano
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