Nissan Murano Z50 (2004 year). Manual — part 204
STARTING SYSTEM
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Trouble Diagnosis with Battery/Starting/Charging System Tester
AKS004F1
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.
1.
Turn off all loads on the vehicle electrical system.
2.
Perform battery test with Battery/Starting/Charging system
tester. Refer to
SC-6, "Trouble Diagnosis with Battery/Starting/
.
3.
Press “ENTER” to begin the starting system test.
4.
Start the engine.
5.
Diagnosis result is displayed on the tester. Refer to
"DIAGNOSTIC RESULT ITEM CHART"
.
NOTE:
●
If the starter performs normally but the engine does not start,
perform engine diagnosis.
●
For intermittent “NO CRANK” or “NO STARTER OPERA-
TION” incidents, refer to
.
DIAGNOSTIC RESULT ITEM CHART
SEL408X
SEL409X
SEL410X
Diagnostic item
Service procedure
CRANKING VOLTAGE NORMAL
Go to
CRANKING VOLTAGE LOW
Go to
CHARGE BATTERY
Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Per-
form battery test again with Battery/Starting/Charging system tester. Refer to
Diagnosis with Battery/Starting/Charging System Tester"
.
REPLACE BATTERY
Before replacing battery, clean the battery cable clamps and battery posts. Perform battery
test again with Battery/Starting/Charging system tester. Refer to
with Battery/Starting/Charging System Tester"
. If second test result is “REPLACE BAT-
TERY”, then do so. Perform battery test again to confirm repair.
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STARTING SYSTEM
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WORK FLOW
SKIB0227E
*1
SC-11, "Trouble Diagnosis with Battery/
Starting/Charging System Tester"
*2
SC-14, "MINIMUM SPECIFICATION
OF CRANKING VOLTAGE REFER-
ENCING COOLANT TEMPERA-
TURE"
*3
SC-13, "DIAGNOSTIC PROCEDURE
1"
.
*4
STARTING SYSTEM
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DIAGNOSTIC PROCEDURE 1
Check “B” Terminal Circuit
1.
CHECK POWER SUPPLY FOR STARTER MOTOR “B” TERMINAL
1.
Remove the fuel pump fuse.
2.
Crank or start the engine (where possible) until the fuel pressure is released.
3.
Turn the ignition switch OFF.
4.
Make sure the starter motor B terminal F38 terminal 2 (B/R) connection is clean and tight.
5.
Check voltage between starter motor B terminal F38 terminal 2
(B/R) and ground using a digital circuit tester.
OK or NG
OK
>> GO TO 2.
NG
>> Check harness between the battery and the starter
motor for open circuit.
2.
CHECK BATTERY HARNESS CONNECTION (VOLTAGE DROP TEST)
Check voltage between starter motor B terminal F38 terminal 2 (B/R)
and battery positive terminal using a digital circuit tester.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness between the battery and the starter
motor for poor continuity.
3.
CHECK STARTER MOTOR GROUND CIRCUIT (VOLTAGE DROP TEST)
Check voltage between starter motor case and battery negative ter-
minal using a digital circuit tester.
OK or NG
OK
>> Starter motor “B” terminal circuit is OK. Further inspec-
tion necessary. Refer to
NG
>> Check the starter motor case and ground for poor conti-
nuity.
Battery voltage should exist.
PKIA2369E
When the ignition switch is in START position,
Voltage: Less than 0.5V
PKIA2370E
When the ignition switch is in START position,
Voltage: Less than 0.2V
PKIA2786E
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STARTING SYSTEM
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DIAGNOSTIC PROCEDURE 2
Check “S” Connector Circuit
1.
CHECK POWER SUPPLY FOR STARTER MOTOR “S” CONNECTOR
1.
Remove the fuel pump fuse.
2.
Crank or start the engine (where possible) until the fuel pressure is released.
3.
Turn the ignition switch OFF.
4.
Disconnect starter motors connector.
5.
Check voltage between starter motor harness connector F5 ter-
minal 1 (B/W) and ground using a digital circuit tester.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following.
●
40A fusible link (letter M , located in the fuse and fus-
ible link block)
●
Ignition switch
●
Starter relay [within the IPDM (intelligent power distribution module engine room)]
●
Harness for open or short
2.
CHECK “S” CONNECTOR CONNECTION (VOLTAGE DROP TEST)
1.
Connect starter motors connector.
2.
Check voltage between starter motor harness connector F5 ter-
minal 1 (B/W) and battery positive terminal using a digital circuit
tester.
OK or NG
OK
>> Starter motor “S” connector circuit is OK. Further inspec-
tion necessary. Refer to
NG
>> Check harness between the battery and the starter
motor “S” connector for poor continuity.
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA-
TURE
When the ignition switch is in START position,
Battery voltage should exist.
PKIA2422E
When the ignition switch is in START position,
Voltage: Less than 1V
PKIA2423E
Engine coolant temperature
Voltage V
−
30
°
C to
−
20
°
C (
−
22
°
F to
−
4
°
F)
8.4
−
19
°
C to
−
10
°
C (
−
2
°
F to 14
°
F)
8.9
−
9
°
C to 0
°
C (16
°
F to 32
°
F)
9.3
More than 1
°
C (More than 34
°
F)
9.7
STARTING SYSTEM
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Removal and Installation
AKS004F2
REMOVAL
1.
Remove battery. Refer to
SC-8, "Removal and Installation"
.
2.
Remove air intake duct. Refer to
EM-14, "AIR CLEANER AND AIR DUCT"
in “ENGINE MECHANICAL
(EM)” section.
3.
Remove battery bracket, using power tools.
4.
Remove fluid charging pipe. Refer to
in “CVT” section.
5.
Disconnect S connector.
6.
Remove B terminal nut.
7.
Remove starter motor mounting bolts, using power tools.
8.
Remove starter motor to the direction of upper side the vehicle.
INSTALLATION
Install in 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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Disassembly and Assembly
AKS004F3
Inspection After Disassembly
AKS004F4
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
: 5.6 - 10.4 N·m (0.57 - 1.1 kg-m, 50 - 92 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 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 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)
●
to alternator terminal E
●
through body 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.
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CHARGING SYSTEM
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Wiring Diagram — CHARGE —
AKS004F6
TKWA0735E
CHARGING SYSTEM
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Revision: 2004 November
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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.
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
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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
Go to
.
HIGH CHARGING VOLTAGE
Go to
.
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
system tester to confirm repair.
DIODE RIPPLE NOT DETECTED
Go to
.
CHARGING SYSTEM
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WORK FLOW
PKIA2226E
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CHARGING SYSTEM
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DIAGNOSTIC PROCEDURE 1
Check “L” Terminal Circuit
1.
CHECK “L” TERMINAL CONNECTION
Check to see 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
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
>> Go to
.
NG
>> Check the following.
●
10A fuse [No. 14, located in the fuse block (J/B)]
●
CHARGE lamp
●
Harness for open or short between combination
meter and fuse
●
Harness for open or short between combination meter and alternator
CHARGE lamp should light up.
PKIA2427E
CHARGING SYSTEM
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DIAGNOSTIC PROCEDURE 2
Check “B” Terminal Circuit
1.
CHECK “B” TERMINAL CONNECTION
Check to see if “B” terminal is clean and tight.
OK or NG
OK
>> GO TO 2. Confirm repair by performing complete Battery/Starting/Charging system test.
NG
>> Repair “B” terminal connection.
2.
CHECK ALTERNATOR “B” TERMINAL CIRCUIT
Check voltage between alternator B terminal F26 terminal 1 (B/R)
and ground using a digital circuit tester.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open or short between alternator and
battery.
3.
CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1.
Start the engine.
2.
When the engine running at idle and warm, check voltage
between alternator B terminal F26 terminal 1 (B/R) and battery
positive terminal using a digital circuit tester.
OK or NG
OK
>> Replace the alternator. Confirm repair by performing
complete Battery/Starting/Charging system test.
NG
>> Check harness between the battery and the alternator
for poor continuity.
Battery voltage should exist.
PKIA2367E
Voltage: Less than 0.2V
PKIA2366E
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CHARGING SYSTEM
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2004 Murano
DIAGNOSTIC PROCEDURE 3
Check “L” Terminal Circuit
1.
CHECK “L” TERMINAL CONNECTION
Check to see 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
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
>> Replace the alternator. Confirm repair by performing
complete Battery/Starting/Charging system test.
NG
>> Check the following.
●
10A fuse [No. 14, located in the fuse block (J/B)]
●
CHARGE lamp
●
Harness for open or short between combination
meter and fuse
●
Harness for open or short between combination meter and alternator
CHARGE lamp should light up.
PKIA2427E
CHARGING SYSTEM
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DIAGNOSTIC PROCEDURE 4
Check “B” Terminal Circuit
1.
CHECK “B” TERMINAL CONNECTION
Check to see if “B” terminal is clean and tight.
OK or NG
OK
>> GO TO 2. Confirm repair by performing complete Battery/Starting/Charging system test.
NG
>> Repair “B” terminal connection.
2.
CHECK ALTERNATOR “B” TERMINAL CIRCUIT
Check voltage between alternator B terminal F26 terminal 1 (B/R)
and ground using a digital circuit tester.
OK or NG
OK
>> GO TO 3.
NG
>> Check harness for open or short between alternator and
battery.
3.
CHECK “B” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1.
Start the engine.
2.
When the engine running at idle and warm, check voltage
between alternator B terminal F26 terminal 1 (B/R) and battery
positive terminal using a digital circuit tester.
OK or NG
OK
>> GO TO 4.
NG
>> Check harness between the battery and the alternator
for poor continuity.
4.
CHECK ALTERNATOR DRIVE BELT TENSION
1.
Turn ignition switch OFF.
2.
Check alternator drive belt tension. Refer to
(EM)” section.
YES or NO
YES
>> Replace the alternator. Confirm repair by performing complete Battery/Starting/Charging system
test.
NO
>> Readjust belt tension. Refer to
section.
Battery voltage should exist.
PKIA2367E
Voltage: Less than 0.2V
PKIA2366E
Does drive belt tension normal?
SC-26
CHARGING SYSTEM
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2004 Murano
DIAGNOSTIC PROCEDURE 5
Check “S” Terminal Circuit
1.
CHECK “S” TERMINAL CONNECTION
Check to see 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
Check voltage between alternator harness connector F27 terminal 4
(Y/B) and ground using a digital circuit tester.
OK or NG
OK
>> GO TO 3.
NG
>> Check the following.
●
10A fuse (No. 33, located in the fuse and fusible link
box)
●
Harness for open or short between alternator and
fuse
3.
CHECK “S” TERMINAL CONNECTION (VOLTAGE DROP TEST)
1.
Start the engine.
2.
When the engine running at idle and warm, check voltage
between alternator connector F27 terminal 4 (Y/B) and battery
positive terminal using a digital circuit tester.
OK or NG
OK
>> Replace the alternator. Confirm repair by performing
complete Battery/Starting/Charging system test.
NG
>> Check harness between the battery and the alternator
for poor continuity.
MALFUNCTION INDICATOR
The 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.
Battery voltage should exist.
PKIA2428E
Voltage: Less than 0.2V
PKIA2429E
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