2007 INFINITI FX35 service

SB-2
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NHS0006V
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.
Precaution for Seat Belt ServiceNHS0006W
CAUTION:

Before removing the front seat belt pre-tensioner assembly, turn the ignition switch off, discon-
nect the both battery cables and wait at least 3 minutes.

Do not use electrical test equipment for front seat belt pre-tensioner connector.

After replacing or reinstalling front seat belt pre-tensioner assembly, or reconnecting front seat
belt pre-tensioner connector, check the system function. Refer to SRS-20, "
SRS Operation Check"
.

Do not use disassemble buckle or seat belt assembly.

Replace anchor bolts if they are deformed or worn out.

Never oil tongue and buckle.

If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.

If webbing is cut, frayed, or damaged, replace seat belt assembly.

When replacing seat belt assembly, use a genuine NISSAN seat belt assembly.

Disposal, recycling, and transportation of air bag modules and seat belt pre-tensioners should be
performed in compliance with applicable federal, state and local laws and regulations.
AFTER A COLLISION
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the col-
lision was minor and the belts show no damage and continue to operate properly. Failure to do so
could result in serious personal injury in an accident. Seat belt assemblies not in use during a colli-
sion should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioner
should be replaced even if the seat belts are not in use during a frontal collision in which the air bags
are deployed.
Replace any seat belt assembly (including anchor bolts) if:

The seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).

The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide).

The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for damage
or distortion and repair as necessary before installing a new seat belt assembly.

Anchor bolts are deformed or worn out.

SC-1
STARTING & CHARGING SYSTEM
K ELECTRICAL
CONTENTS
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SECTION
A
B
SC
Revision: 2006 July 2007 FX35/FX45
STARTING & CHARGING SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
PREPARATION ...................................................... ..... 4
Special Service Tools .......................................... ..... 4
Commercial Service Tools ................................... ..... 4
BATTERY ............................................................... ..... 5
How to Handle Battery ........................................ ..... 5
METHODS OF PREVENTING OVER-DIS-
CHARGE .......................................................... ..... 5
CHECKING ELECTROLYTE LEVEL ............... ..... 6
SPECIFIC GRAVITY CHECK .......................... ..... 6
CHARGING THE BATTERY ............................ ..... 7
Trouble Diagnosis with Battery/Starting/Charging
System Tester (Battery) ....................................... ..... 8
DIAGNOSTIC RESULT ITEM CHART ............. ..... 9
Removal and Installation ..................................... ... 10
REMOVAL ........................................................ ... 10
INSTALLATION ................................................ ... 10
STARTING SYSTEM ............................................. ....11
System Description ............................................. .... 11
Wiring Diagram — START — .............................. ... 12
VK45DE ENGINE MODELS ............................ ... 12
VQ35DE ENGINE MODELS ............................ ... 13
Trouble Diagnosis with Battery/Starting/Charging
System Tester (Starting) ...................................... ... 14
DIAGNOSTIC RESULT ITEM CHART ............. ... 14
WORK FLOW ................................................... ... 15
DIAGNOSTIC PROCEDURE 1 ........................ ... 16
DIAGNOSTIC PROCEDURE 2 ........................ ... 17
MINIMUM SPECIFICATION OF CRANKING
VOLTAGE REFERENCING COOLANT TEM-
PERATURE ...................................................... ... 17
Removal and Installation (VK45DE Engine Models) ... 18
REMOVAL ........................................................ ... 18
INSTALLATION ................................................ ... 18
Removal and Installation [VQ35DE Engine Models
(2WD)] ................................................................. ... 19
REMOVAL ........................................................ ... 19 INSTALLATION ................................................
... 19
Removal and Installation [VQ35DE Engine Models
(AWD)] ................................................................. ... 20
REMOVAL ........................................................ ... 20
INSTALLATION ................................................ ... 20
Disassembly and Assembly ................................. ... 21
VK45DE ENGINE MODELS (M002T85075) .... ... 21
VQ35DE ENGINE MODELS (2WD) (S114-880) ... 22
VQ35DE ENGINE MODELS (AWD) (S114-881) ... 23
Inspection After Disassembly .............................. ... 23
PINION/CLUTCH CHECK ................................ ... 23
CHARGING SYSTEM ............................................ ... 24
System Description .............................................. ... 24
MALFUNCTION INDICATOR ........................... ... 24
Wiring Diagram — CHARGE — .......................... ... 25
VK45DE ENGINE MODELS ............................. ... 25
VQ35DE ENGINE MODELS ............................ ... 26
Trouble Diagnosis with Battery/Starting/Charging
System Tester (Charging) .................................... ... 27
DIAGNOSTIC RESULT ITEM CHART ............. ... 28
WORK FLOW ................................................... ... 29
PRELIMINARY INSPECTION .......................... ... 30
DIAGNOSTIC PROCEDURE 1 ........................ ... 31
DIAGNOSTIC PROCEDURE 2 ........................ ... 32
DIAGNOSTIC PROCEDURE 3 ........................ ... 32
DIAGNOSTIC PROCEDURE 4 ........................ ... 33
Removal and Installation (VK45DE Engine Models) ... 34
REMOVAL ........................................................ ... 34
ALTERNATOR PULLEY INSPECTION ............ ... 35
INSTALLATION ................................................ ... 35
Removal and Installation (VQ35DE Engine Models) ... 35
REMOVAL ........................................................ ... 35
ALTERNATOR PULLEY INSPECTION ............ ... 36
INSTALLATION ................................................ ... 36
Disassembly and Assembly ................................. ... 37
VK45DE ENGINE MODELS (LR1110-716V) .... ... 37
VQ35DE ENGINE MODELS (A3TG0191) ....... ... 38
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 39
Battery ................................................................. ... 39

PRECAUTIONS SC-3
C
D E
F
G H
I
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L
M A
B
SC
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS002UK
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.

SC-4
PREPARATION
Revision: 2006 July 2007 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsNKS002UL
Commercial Service ToolsNKS002UM
Tool number
Tool name Description
J-44373 Model 620
Battery/Starting/Charging system
tester
SEL403X
Tool number
Tool name Description
Power tool Loosening bolts and nuts
PBIC0190E

SC-8
BATTERY
Revision: 2006 July 2007 FX35/FX45
Trouble Diagnosis with Battery/Starting/Charging System Tester (Battery)NKS002UO
CAUTION:
When working with batteries, always wear appropriate eye protection.
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.

If battery surface charge is detected while testing, the tester will prompt you to turn on the headlamps to
remove the surface charge.

If necessary, the tester will prompt you to determine if the battery temperature is above or below 0 °C (32
° F). Choose the appropriate selection by pressing the up or down arrow button, then press “ENTER” to
make the selection.
1. Turn off all loads on the vehicle electrical system. Clean or repair as necessary.
2. Visually inspect the battery, battery terminals and cable ends with ignition switch in “OFF” position.
NOTE:
The contact surface between the battery terminals, cable ends
and tester leads must be clean for a valid test. A poor connec-
tion will prevent testing and a “CHECK CONNECTION” mes-
sage will appear during the test procedures. If this occurs, clean
the battery terminals, reconnect them and restart the test.
3. Connect the red tester lead clamp to the positive battery termi- nal, and the black to the negative terminal.
4. The tester will turn on automatically. Using the arrow keys, select “IN-VEHICLE” on the tester and then press the “ENTER”
key.
5. Locate the battery type and rating stamped or written on the
top case of the battery to be tested.
NOTE:
The battery rating will have either of the following.

CCA: Cold Cranking Amps (490 CCA, 550 CCA, etc.)

JIS: Japanese Industrial Standard.
When using the battery tester: Use the CCA rating only.

The tester requires the CCA rating for the battery be entered
exactly as it is written or stamped on the battery.

U.S. market : Refer to the latest “Battery Testing” Technical
Service Bulletin (TSB) for a chart which contains these ratings
listed by vehicle.

You must not use the JIS rating.
6. Using the arrow and “ENTER” keys alternately, select the battery type and rating. NOTE:
The tester lists five choices; CCA, JIS, IEC, DIN, and EN. Use only the CCA choice .
SEL404X
SEL405X
PKIC1310E

BATTERY SC-9
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Revision: 2006 July 2007 FX35/FX45
7. Press “ENTER” to begin the test. Diagnosis results are dis-
played on the tester. Refer to SC-9, "
DIAGNOSTIC RESULT
ITEM CHART" .
8. Press “ENTER”, then test output code is displayed. Record the test output code on the repair order.
9. Toggle back to the “DIAGNOSTIC SCREEN” for test results. NOTE:

If necessary, the tester will ask the user to determine if the
battery has just been charged. Choose the appropriate selec-
tion by pressing the up or down arrow button and then press
the “ENTER” button to make the selection.

When testing a battery installed in a vehicle that has recently
been driven, select “BEFORE CHARGE”.

If the battery has just been slow charged due to a “CHARGE
& RETEST” decision by the tester, and the tester asks the user “BEFORE CHARGE/AFTER
CHARGE”, select “AFTER CHARGE”.
DIAGNOSTIC RESULT ITEM CHART
SEL407X
SEL576X
Diagnostic item Service procedure
GOOD BATTERY Battery is OK, go to “Trouble Diagnosis”, “STARTING SYSTEM”. Refer to
SC-14, "
Trouble Diagnosis with
Battery/Starting/Charging System Tester (Starting)" .
REPLACE BATTERY Replace battery.
Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again with
Battery/Starting/Charging system tester. If second test result is “Replace Battery”, then do so. Perform battery
test again to confirm repair.
BAD CELL-REPLACE Replace the battery. Perform battery test again with Battery/Starting/Charging system tester to confirm repair.
GOOD-RECHARGE Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.)
CHARGE & RETEST Perform the slow battery charging. (Initial rate of charge is 10A for 12 hours.)
Perform battery test again with Battery/Starting/Charging system tester to confirm repair.
NOTE:
If the tester asks the user “BEFORE CHARGE/AFTER CHARGE”, select “AFTER CHARGE”.

SC-14
STARTING SYSTEM
Revision: 2006 July 2007 FX35/FX45
Trouble Diagnosis with Battery/Starting/Charging System Tester (Starting)NKS002US
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-8, "
Trouble Diagnosis with Battery/Starting/
Charging System Tester (Battery)" .
3. Press “ENTER” to begin the starting system test.
4. Start the engine.
5. Diagnostic result is displayed on the tester. Refer to SC-14,
"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 SC-17, "
DIAGNOSTIC PROCE-
DURE 2" .
DIAGNOSTIC RESULT ITEM CHART
SEL408X
SEL409X
SEL410X
Diagnostic item Service procedure
CRANKING VOLTAGE NORMAL Go to SC-15, "
WORK FLOW" .
CRANKING VOLTAGE LOW
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 SC-8, "
Trouble
Diagnosis with Battery/Starting/Charging System Tester (Battery)" .
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 SC-8, "
Trouble Diagnosis
with Battery/Starting/Charging System Tester (Battery)" . If second test result is “REPLACE
BATTERY”, then do so. Perform battery test again to confirm repair.

SC-28
CHARGING SYSTEM
Revision: 2006 July 2007 FX35/FX45
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-28,
"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-29, "
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 DETECTED Replace the alternator. Perform “DIODE RIPPLE” test again using Battery/Starting/Charging
system tester to confirm repair.
DIODE RIPPLE NOT DETECTED Go to SC-29, "
WORK FLOW" .