2007 NISSAN 350Z engine

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BATTERY
Revision: 2006 November2007 350Z
BATTERYPFP:AYBGL
How to Handle BatteryNKS00006
CAUTION:

If it becomes necessary to start the engine with a booster battery and jumper cables, use a 12-volt
booster battery.

After connecting battery cables, ensure that they are tightly clamped to battery terminals for good
contact.
METHODS OF PREVENTING OVER-DISCHARGE
The following precautions must be taken to prevent over-discharging
a battery.

The battery surface (particularly its top) should always be kept
clean and dry.

The terminal connections should be clean and tight.

At every routine maintenance, check the electrolyte level.
This also applies to batteries designated as “low maintenance”
and “maintenance-free”.

When the vehicle is not going to be used over a long period of
time, disconnect the battery cable from the negative terminal.

Check the charge condition of the battery.
Periodically check the specific gravity of the electrolyte. Keep a
close check on charge condition to prevent over-discharge.
MEL040F
ELA0349D
MEL042F

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STARTING SYSTEM
Revision: 2006 November2007 350Z
STARTING SYSTEMPFP:23300
System Description NKS00009
M/T MODELS
Power is supplied at all times:

through 40A fusible link (letter M , located in the fuse and fusible link block)

to ignition switch terminal 1,

through 10A fuse (No. 71, located in the IPDM E/R)

to CPU of IPDM E/R,

through 15A fuse (No. 78, located in the IPDM E/R)

to CPU of IPDM E/R.
With the ignition switch in the ON or START position, power is supplied:

to CPU of IPDM E/R, from battery direct

through 10A fuse (No. 89, located in the IPDM E/R) and IPDM E/R terminal 25

to clutch interlock switch terminal 1.
When the clutch pedal is depressed, power is supplied:

through clutch interlock switch terminal 2

to IPDM E/R terminal 53.
Ground is supplied:

to IPDM E/R terminals 38, 50 and 60

from grounds E17, E43 and B102 (with VDC, navigation system or telephone).

from grounds E17, E43 and F152 (without VDC, navigation system and telephone).
Then starter relay is turn ON.
With the ignition switch in the START position, IPDM E/R is energized and power is supplied:

from ignition switch terminal 5

to IPDM E/R terminal 4 and

through IPDM E/R terminal 3

to starter motor terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.

STARTING SYSTEM
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Revision: 2006 November2007 350Z
A/T MODELS
Power is supplied at all times:

through 40A fusible link (letter M , located in the fuse and fusible link block)

to ignition switch terminal 1,

through 10A fuse (No. 71, located in the IPDM E/R)

to CPU of IPDM E/R,

through 15A fuse (No. 78, located in the IPDM E/R)

to CPU of IPDM E/R.
With the ignition switch in the ON or START position, power is supplied:

to CPU of IPDM E/R, from battery direct.
When the selector lever in the “P” or “N” position, power is supplied:

from A/T assembly (TCM) terminal 9

to IPDM E/R terminal 53.
Ground is supplied:

to IPDM E/R terminals 38, 50 and 60

from grounds E17, E43 and B102 (with VDC, navigation system or telephone).

from grounds E17, E43 and F152 (without VDC, navigation system and telephone).
Then starter relay is turn ON.
With the ignition switch in the START position, IPDM E/R is energized and power is supplied:

from ignition switch terminal 5

to IPDM E/R terminal 4 and

through IPDM E/R terminal 3

to starter motor terminal 1.
The starter motor plunger closes and provides a closed circuit between the battery and starter motor. The
starter motor is grounded to the engine block. With power and ground supplied, cranking occurs and the
engine starts.

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STARTING SYSTEM
Revision: 2006 November2007 350Z
DIAGNOSTIC PROCEDURE 1
Check “B” Terminal Circuit
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1. CHECK “B” TERMINAL CIRCUIT
1. Turn ignition switch OFF.
2. Make sure that starter motor “B” terminal connection is clean
and tight.
3. Check voltage between starter motor “B” terminal and ground.
OK or NG
OK >> GO TO 2.
NG >> Check harness between battery and starter motor for open circuit.
2. CHECK BATTERY CABLE CONNECTION STATUS (VOLTAGE DROP TEST)
1. Shift A/T selector lever to “P” or “N” position. (A/T models)
Keep depressing clutch pedal fully. (M/T models)
2. Check voltage between starter motor “B” terminal and battery
positive terminal.
OK or NG
OK >> GO TO 3.
NG >> Check harness between the battery and the starter motor for poor continuity.
*1 For battery testing, use Battery Ser-
vice Center (J-48087). For details
and operating instructions, refer to
Technical Service Bulletin and/or
Battery Service Center User Guide.*2SC-16, "MINIMUM SPECIFICATION
OF CRANKING VOLTAGE REFER-
ENCING COOLANT TEMPERA-
TURE"
*3SC-14, "Check “B” Terminal Circuit"
*4SC-15, "Check “S” Connector Cir-
cuit"
Te r m i n a l s
Voltage (Approx.) (+)
(–)
Starter motor
“B” terminalTerminal
E203 2 Ground Battery voltage
PKIB8793E
Terminals
ConditionVoltage
(Approx.)
(+)(–)
Starter motor
“B” terminalTerminal
Battery positive
terminalE203 2 When the ignition
switch is in
START positionLess than
0.5 V
PKIB8794E

STARTING SYSTEM
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Revision: 2006 November2007 350Z
3. CHECK GROUND CIRCUIT STATUS (VOLTAGE DROP TEST)
1. Turn ignition switch OFF.
2. Shift A/T selector lever to “P” or “N” position. (A/T models)
Keep depressing clutch pedal fully. (M/T models)
3. Check voltage between starter motor case and battery negative
terminal.
OK or NG
OK >> “B” terminal circuit is OK. Further inspection necessary. Refer to SC-13, "Trouble Diagnoses with
Starting/Charging System Tester (Starting)" .
NG >> Check the starter motor case and ground for poor continuity.
DIAGNOSTIC PROCEDURE 2
Check “S” Connector Circuit
CAUTION:
Perform diagnosis under the condition that engine cannot start by the following procedure.
1. Remove fuel pump fuse.
2. Crank or start the engine (where possible) until the fuel pressure is released.
1. CHECK “S” CONNECTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect starter motor connector.
3. Shift A/T selector lever to “P” or “N” position. (A/T models)
Keep depressing clutch pedal fully. (M/T models)
4. Check voltage between starter motor harness connector and
ground.
OK or NG
OK >> “S” connector circuit is OK. Further inspection necessary. Refer to SC-13, "Trouble Diagnoses
with Starting/Charging System Tester (Starting)" .
NG >> Check the following.

40A fusible link (letter M , located in fuse and fusible link block)

Ignition switch

Starter relay (within the IPDM E/R)

Harness for open or short
Terminals
Condition Voltage (Approx.)
(+) (–)
Starter motor
caseBattery negative
terminalWhen the ignition
switch is in START
positionLess than 0.2 V
PKIB6089E
Terminals
ConditionVoltage
(Approx.) (+)
(–)
Starter motor
connectorTerminal
F44 1 GroundWhen the ignition
switch is in
START positionBattery voltage
PKIB5303E

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STARTING SYSTEM
Revision: 2006 November2007 350Z
MINIMUM SPECIFICATION OF CRANKING VOLTAGE REFERENCING COOLANT TEMPERA-
TURE
Engine coolant temperature Voltage [V]
−30 °C to −20 °C (−22 °F to −4 °F) 8.6
−19 °C to −10 °C (−2 °F to 14°F) 9.1
−9 °C to 0 °C (16 °F to 32 °F) 9.5
More than 1 °C (More than 34 °F) 9.9

STARTING SYSTEM
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Revision: 2006 November2007 350Z
Removal and InstallationNKS0000C
REMOVAL
1. Open the driver and front passenger window, and then disconnect the battery cable from the negative ter-
minal.
CAUTION:
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent
any interference between the window edge and the vehicle when the door is opened/closed. Dur-
ing normal operation, the window slightly raises and lowers automatically to prevent any window
to vehicle interference. The automatic window function will not work with the battery discon-
nected.
2. Remove engine undercover, using power tools.
3. Disconnect steering lower joint (1), then remove it. Refer to PS-
17, "REMOVAL" .
4. Remove “B” terminal mounting nut (A).
1. “B” terminal mounting nut 2. “B” terminal harness 3. Starter motor
4. Transmission case (M/T models)
Converter housing (A/T models)5. Harness clip bracket 6. “S” terminal connector
7. Starter motor mounting bolt
: Vehicle front
Refer to GI-11, "
Components" for symbols not described on the above.
PKID1228E
PKID1141E

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CHARGING SYSTEM
Revision: 2006 November2007 350Z
CHARGING SYSTEMPFP:23100
System DescriptionNKS0000E
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. 36, 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 charging circuit is protected by the 140A fusible link (letter A , located in the fusible link holder).
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 23 for the charge warning lamp.
Ground is supplied with power and ground supplied

to terminal 17 of combination meter

through alternator terminal 3 (“L” terminal)

through case ground.
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.
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.