2007 NISSAN LATIO engine

SC-22
STARTING SYSTEM
Revision: June 20062007 Versa
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA-
TURE
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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Revision: June 20062007 Versa
Removal and Installation EKS00HUY
REMOVAL
1. Disconnect the battery negative terminal.
2. Remove air duct (inlet). Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
3. Remove reservoir tank. Refer to CO-11, "
RADIATOR" .
4. Remove “S” terminal nut.
5. Remove “B” terminal nut.
6. Remove starter motor bolts.
7. Remove starter motor.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
1. "S" terminal harness 2. "B" terminal harness 3. Starter motor
4. Cylinder block Engine front
WKIA5611E

SC-24
CHARGING SYSTEM
Revision: June 20062007 Versa
CHARGING SYSTEMPFP:23100
System DescriptionEKS00IB3
The generator 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 generator terminal 3 through

10A fuse (No. 29, located in the fuse and fusible link box).
Power is supplied through terminal 1 to charge the battery and operate the vehicle's electrical system. Output
voltage is monitored at terminal 3 by the IC regulator. The charging circuit is protected by the 120A fusible link
[letter a , located in the fusible link box (battery)].
Ground is supplied

to generator terminal 5

through body ground F5, and

through the generator case to the cylinder block
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 3, located in the fuse block (J/B)]

to combination meter terminal 28 for the charge warning lamp.
The IC regulator controls ground to terminal 38 of the combination meter through terminal 2 of the generator.
When the ignition is turned on and power becomes available at terminal 2, this "wakes up" the regulator. The
regulator monitors charge output and grounds terminal 2 or leaves it open depending on charge output. With
power and ground supplied, the charge warning lamp will illuminate. When the generator is providing sufficient
voltage, 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.

SC-26
CHARGING SYSTEM
Revision: June 20062007 Versa
Trouble Diagnoses with Battery/Starting/Charging System TesterEKS00IB5
NOTE:
To ensure a complete and thorough diagnosis, the battery, starter and generator 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

CHARGING SYSTEM
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Revision: June 20062007 Versa
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 SC-27,
"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 SC-28, "
WORK FLOW" . LOW CHARGING VOLTAGE
HIGH CHARGING VOLTAGE
DIODE RIPPLE NORMAL Diode ripple is OK and will also show CHARGING VOLTAGE test result.
EXCESS RIPPLE DETECTEDReplace the generator. Perform “DIODE RIPPLE” test again using Battery/Starting/Charging
system tester to confirm repair.
DIODE RIPPLE NOT DETECTED Go toSC-28, "
WORK FLOW" .

SC-30
CHARGING SYSTEM
Revision: June 20062007 Versa
DIAGNOSTIC PROCEDURE 2
Check Battery Circuit
1. CHECK BATTERY CIRCUIT CONNECTION
Check to see if terminal 1 is clean and tight.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal 1 connection. Confirm repair by performing complete Battery/Starting/Charging
system test.
2. CHECK BATTERY CIRCUIT
Check voltage between generator connector F2 terminal 1 and
ground using a digital circuit tester.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

120A fusible link [letter a , located in fusible link box
(battery)]

Harness for open or short between generator and fus-
ible link
3. CHECK VOLTAGE DROP ON BATTERY CIRCUIT
Check voltage between generator connector F2 terminal 1 and bat-
tery positive terminal using a digital circuit tester.
OK or NG
OK >> Replace the generator. Refer to SC-32, "Removal and
Installation" . Confirm repair by performing complete
Battery/Starting/Charging system test.
NG >> Check harness between the battery and the generator
for poor continuity. Battery voltage should exist.
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With engine running
at idle and warm: Less than 0.2V
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CHARGING SYSTEM
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Revision: June 20062007 Versa
DIAGNOSTIC PROCEDURE 3
Check Voltage Regulator Circuit
1. CHECK VOLTAGE REGULATOR CIRCUIT CONNECTION
Check to see if terminal 3 is clean and tight.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal 3 connection. Confirm repair by performing complete Battery/Starting/Charging
system test.
2. CHECK VOLTAGE REGULATOR CIRCUIT
Check voltage between generator connector F1 terminal 3 and
ground using a digital circuit tester.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

10A fuse (No. 29, located in fuse and fusible link box)

Harness for open or short between generator and
fuse
3. CHECK VOLTAGE DROP ON VOLTAGE REGULATOR CIRCUIT
Check voltage between generator connector F1 terminal 3 and bat-
tery positive terminal using a digital circuit tester.
OK or NG
OK >> Replace the generator. Refer to SC-32, "Removal and
Installation" . Confirm repair by performing complete
Battery/Starting/Charging system test.
NG >> Check harness between the battery and the generator
for poor continuity. Battery voltage should exist.
WKIA5579E
With engine running
at idle and warm: Less than 0.2V
WKIA5580E

PREPARATION
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Revision: June 20062007 Versa
PREPARATIONPFP:00002
Special Service ToolEIS009AO
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolEIS009AP
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-39570)
Chassis earLocating the noise
—
(J-43980)
NISSAN Squeak and Rattle
KitRepairing the cause of noise
SIIA0993E
SIIA0994E
(Kent-Moore No.)
Tool nameDescription
(J-39565)
Engine earLocating the noise
SIIA0995E