2007 NISSAN 350Z service

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STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
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Revision: 2006 November2007 350Z
STARTING & CHARGING SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions for Battery Service ................................ 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
BATTERY .................................................................... 4
How to Handle Battery ............................................. 4
METHODS OF PREVENTING OVER-DIS-
CHARGE ............................................................... 4
CHECKING ELECTROLYTE LEVEL .................... 5
SPECIFIC GRAVITY CHECK ............................... 5
CHARGING THE BATTERY ................................. 6
Trouble Diagnoses with Battery Service Center ....... 7
Removal and Installation .......................................... 7
REMOVAL ............................................................. 7
INSTALLATION ..................................................... 7
STARTING SYSTEM .................................................. 8
System Description .................................................. 8
M/T MODELS ........................................................ 8
A/T MODELS ........................................................ 9
Wiring Diagram — START — ................................. 10
M/T MODELS ...................................................... 10
A/T MODELS ...................................................... 12
Trouble Diagnoses with Starting/Charging System
Tester (Starting) ...................................................... 13
DIAGNOSTIC PROCEDURE 1 ........................... 14
DIAGNOSTIC PROCEDURE 2 ........................... 15MINIMUM SPECIFICATION OF CRANKING
VOLTAGE REFERENCING COOLANT TEM-
PERATURE ......................................................... 16
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSTALLATION ................................................... 18
Disassembly and Assembly .................................... 19
TYPE: S114-928 .................................................. 19
INSPECTION AFTER DISASSEMBLY ................ 19
CHARGING SYSTEM ............................................... 20
System Description ................................................. 20
MALFUNCTION INDICATOR .............................. 20
Wiring Diagram — CHARGE — ............................. 21
Trouble Diagnoses with Starting/Charging System
Tester (Charging) .................................................... 22
PRELIMINARY INSPECTION ............................. 23
DIAGNOSTIC PROCEDURE 1 ........................... 23
DIAGNOSTIC PROCEDURE 2 ........................... 24
DIAGNOSTIC PROCEDURE 3 ........................... 24
DIAGNOSTIC PROCEDURE 4 ........................... 24
Removal and Installation ........................................ 26
REMOVAL ........................................................... 26
ALTERNATOR PULLEY INSPECTION ............... 27
INSTALLATION ................................................... 27
Disassembly and Assembly .................................... 28
TYPE: A3TJ1991 ................................................. 28
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 29
Battery .................................................................... 29
Starter ..................................................................... 29
Alternator ................................................................ 29

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PRECAUTIONS
Revision: 2006 November2007 350Z
PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS00001
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery ServiceNKS00002
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During 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 disconnected.

PREPARATION
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PREPARATIONPFP:00002
Special Service ToolsNKS00004
Commercial Service ToolsNKS0054Y
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-48087)
Battery Service CenterTests battery.
For operating instructions, refer to Technical
Service Bulletin and Battery Service Center
User Guide.
—
(J-44373 Model MCR620)
Starting/Charging System Tester
Tests starting and charging system.
For operating instructions, refer to Technical
Service Bulletin.
WKIA5280E
SEL403X
Tool nameDescription
Power toolLoosening bolts, nuts and screws
PIIB1407E

BATTERY
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Trouble Diagnoses with Battery Service CenterNKS00007
For battery testing, use Battery Service Center (J-48087). For details and operating instructions, refer to Tech-
nical Service Bulletin and/or Battery Service Center User Guide.
Removal and Installation NKS00008
REMOVAL
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. During normal
operation, the window slightly raises and lowers automatically to prevent any window to vehicle inter-
ference. The automatic window function will not work with the battery disconnected.
1. Remove hoodledge cover (right).
2. Disconnect both battery cables from terminals.
CAUTION:
When disconnecting, disconnect the battery cable from the
negative terminal first.
3. Remove clips of cowl top cover (right) and it raises to the up
side.
4. Remove battery fix frame mounting nuts and battery fix frame.
5. Remove relay box from bracket.
6. Remove battery.
INSTALLATION
Installation is the reverse order of removal.
CAUTION:
When connecting, connect the battery cable to positive terminal first.
PKIA1919E
SKIB1149E
Battery fix frame mounting nut
: 3.9 N·m (0.40 kg-m, 35 in-lb)
Battery cable tightening nut
: 5.4 N·m (0.55 kg-m, 48 in-lb)

STARTING SYSTEM
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Trouble Diagnoses with Starting/Charging System Tester (Starting)NKS0000B
For starting system testing, use Starting/Charging System Tester (J-44373). For details and operating instruc-
tions, refer to Technical Service Bulletin.
SKIB1369E

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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

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CHARGING SYSTEM
Revision: 2006 November2007 350Z
Trouble Diagnoses with Starting/Charging System Tester (Charging)NKS0000G
For charging system testing, use Starting/Charging System Tester (J-44373). For details and operating
instructions, refer to Technical Service Bulletin.
*1SC-23, "Check “L” Terminal Circuit
(Open)"
*2SC-24, "Check “L” Terminal Circuit
(Short)"
*3SC-24, "Check “S” Terminal Circuit"
*4SC-24, "Check “B” Terminal Circuit"*5SC-27, "ALTERNATOR PULLEY
INSPECTION"
SKIB0527E

CHARGING SYSTEM
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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 and fusible links.
OK or NG
OK >> GO TO 3.
NG >> Be sure eliminate cause of malfunction before installing new fuse and fusible link.
3. CHECK ALTERNATOR DRIVE BELT TENSION
Check alternator drive belt tension. Refer to EM-12, "
Checking Drive Belts" .
OK or NG
OK >> INSPECTION END
NG >> Repair as needed.
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 Starting/Charging system
test. Refer to Technical Service Bulletin.
2. CHECK “L” TERMINAL CIRCUIT (OPEN)
1. Disconnect alternator connector.
2. Apply ground to alternator harness connector terminal.
3. Check condition the charge warning lamp with the ignition
switch in the ON position.
OK or NG
OK >> Go to SC-22, "Trouble Diagnoses with Starting/Charging
System Tester (Charging)" .
NG >> Check the following.

Harness for open between combination meter and alternator

Harness for open between combination meter and fuse

Charge warning lamp (Combination meter)
Unit Power source (Power supply terminals) Fuse and fusible link No.
Alternator Battery (“S” terminal) 36, letter B, letter A
Combination meter Ignition switch ON (“L” terminal) 14
Alternator
connectorTerminal
GroundCondition
Ignition switch
positionCharge warning
lamp
F58 3 ON illuminate
PKIB8807E