2006 INFINITI M35 belt

SEAT BELTS
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Revision: 2006 January2006 M35/M45
INSTALLATION OF SEAT BELT BUCKLE
Install in the reverse order of removal.
Tighten by specified torque.
Seat Belt InspectionNHS0008L
AFTER A COLLISION
WAR NING :
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN / INFINITI recommends that all seat belt assemblies in use during a collision be replaced
unless the collision was minor and the belts show no damage and continue to operate properly. Fail-
ure to do so could result in serious personal injury in an accident. Seat belt assemblies not in use dur-
ing a collision should also be replaced if either damage or improper operation is noted. Seat belt pre-
tensioned 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, etc.)
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.
The seat belt pre-tensioner should be replaced even if the seat belts are not in use during the collision in
which the air bags are deployed.
PRELIMINARY CHECKS
1. Check the seat belt warning lamp/chime for proper operation as follows:
a. Switch ignition ON. The seat belt warning lamp should illuminate. Also, the seat belt warning chime should
sound for about six seconds.
b. Fasten driver's seat belt. The seat belt warning lamp should go out and the chime (if sounding) should
stop.
2. If the air bag warning lamp is blinking, conduct self-diagnosis using CONSULT-II, and air bag warning
lamp. Refer to SRS-19, "
SRS Operation Check" .
3. Check that the seat belt retractor, seat belt anchor and buckle bolts are securely attached.
4. Check the shoulder seat belt guide and shoulder belt height adjuster for front seats. Ensure guide swivels
freely and that webbing lays flat and does not bind in guide. Ensure height adjuster operates properly and
holds securely.
5. Check retractor operation:
a. Fully extend the seat belt webbing and check for twists, tears or other damage.
b. Allow the seat belt to retract. Ensure that webbing returns smoothly and completely into the retractor. If
the seat belt does not return smoothly, wipe the inside of the loops with a clean paper cloth. Because dirt
built up in the loops of the upper anchors can cause the seat belts to retract slowly.
c. Fasten the seat belt. Check the seat belt returns smoothly and completely to the retractor. If the webbing
does not return smoothly, the cause may be an accumulation of dust or dirt. Use the “SEAT BELT TAPE
SET” and perform the following steps.
Inspect the front seat belt though-anchor
1. Pull the seat belt out to a length of 500 mm (19.69 in) or more.
2. Use a clip or other device to the fix the seat belt at the center pillar webbing opening.
3. Pass a thin wire though the though-anchor webbing opening. Hold both ends of the wire and pull it
tantly while moving it up and down several times along the webbing opening surface to move matter
stuck there.
4. Any dirt that can not be removed with the wire can be removed by cleaning the opening with a clean
cloth.
5. Apply tape at the point where the webbing contacts the though-anchor webbing opening. Tightening torque : 49.0 Nꞏm (5.0 kg-m, 36 ft-lb)

SB-34
SEAT BELTS
Revision: 2006 January2006 M35/M45
NOTE:
Apply the tape so that there is no looseness or wrinkling.
6. Remove the clip fixing the seat belt and check that the webbing returns smoothly.
6. Repeat steps above as necessary to check the other seat belts.
SEAT BELT RETRACTOR ON-VEHICLE CHECK
Emergency Locking Retractors (ELR) and Automatic Locking Retractors (ALR)
NOTE:
All seat belt retractors are of the Emergency Locking Retractors (ELR) type. In an emergency (sudden stop)
the retractor will lock and prevent the webbing from extending any further. All 3-point type seat belt retractors
except the driver's seat belt also have an Automatic Locking Retractors (ALR) mode. The ALR mode (also
called child restraint mode) is used when installing child seats. The ALR mode is activated when the seat belt
is fully extended. When the webbing is then retracted partially, the ALR mode automatically locks the seat belt
in a specific position so the webbing cannot be extended any further. To cancel the ALR mode, allow the seat
belt to fully wind back into the retractor.
Check the seat belt retractors using the following test(s) to determine if a retractor assembly is operating prop-
erly.
ELR Function Stationary Check
Grasp the shoulder webbing and pull forward quickly. The retractor should lock and prevent the belt from
extending further.
ALR Function Stationary Check
1. Pull out entire length of seat belt from retractor until a click is heard.
2. Retract the webbing partially. A clicking noise should be heard as the webbing retracts indicating that the
retractor is in the Automatic Locking Retractors (ALR) mode.
3. Grasp the seat belt and try to pull out the retractor. The webbing must lock and not extend any further. If
NG, replace the retractor assembly.
4. Allow the entire length of the webbing to retract to cancel the automatic locking mode.
ELR Function Moving Check
WAR NING :
Perform the following test in a safe, open area clear of other vehicles and obstructions (for example, a
large, empty parking lot). Road surface must be paved and dry. DO NOT perform the following test on
wet or gravel roads or on public streets and highways. This could result in an accident and serious
personal injury. The driver and passenger must be prepared to brace themselves in the event the
retractor does not lock.
1. Fasten driver's seat belt. Buckle a passenger into the seat for the belt that is to be tested.
2. Proceed to the designated safe area.
3. Drive the vehicle at approximately 16 km/h (10 MPH). Notify any passengers of a pending sudden stop
and the driver and passenger must be prepared to brace themselves in the event the retractor does not
lock, apply brakes firmly and make a very hard stop.
During stop, seat belts should lock and not be extended. If the seat belt retractor assembly does not lock, per-
form the retractor off-vehicle check.

SEAT BELTS
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SEAT BELT RETRACTOR OFF-VEHICLE CHECK (FRONT SEAT BELT)
1. Remove the seat belt retractor.
Remove the front seat belt assembly, refer to SB-30, "Removal and Installation of Front Seat Belt" .
2. Slowly pull out webbing while tilting the retractor assembly forward from the mounted position without
twisting the retractor assembly as shown in the illustration.
A : The webbing can be pulled out in case the retractor is tilted
15
degree or less.
B : The webbing can't be pulled out in case the retractor is tilted
35
degree or more.
A and B show tilting angles.
: Vehicle front.
Replace the seat belt assembly if it does not operate normally.
SEAT BELT RETRACTOR OFF-VEHICLE CHECK (REAR SEAT BELT)
1. Remove the seat belt retractor.
Remove the front seat belt assembly, refer to SB-32, "Removal and Installation of Rear Seat Belt" .
2. Slowly pull out webbing while tilting the retractor assembly forward from the mounted position without
twisting the retractor assembly as shown in the illustration.
A : The webbing can be pulled out in case the retractor is tilted
15
degree or less.
B : The webbing can't be pulled out in case the retractor is tilted
35
degree or more.
A and B show tilting angles.
: Vehicle front.
Replace the seat belt assembly if it does not operate normally.
PHIA0954J
PHIA0962J

SC-1
STARTING & CHARGING SYSTEM
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SECTION SC
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Revision: 2006 January2006 M35/M45
STARTING & CHARGING SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions for Power Generation Voltage Variable
Control System ......................................................... 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 Diagnosis with Battery/Starting/Charging
System Tester (Battery) ............................................ 7
DIAGNOSTIC RESULT ITEM CHART .................. 8
Removal and Installation .......................................... 9
REMOVAL ........................................................
..... 9
INSTALLATION ..................................................... 9
STARTING SYSTEM ................................................ 10
System Description ................................................ 10
Wiring Diagram — START — .................................. 11
VQ35DE ENGINE MODELS ................................ 11
VK45DE ENGINE MODELS ............................... 12
Trouble Diagnosis with Battery/Starting/Charging
System Tester (Starting) ......................................... 13
DIAGNOSTIC RESULT ITEM CHART ................ 13
WORK FLOW ...................................................... 14
DIAGNOSTIC PROCEDURE 1 ........................... 15
DIAGNOSTIC PROCEDURE 2 ........................... 16
MINIMUM SPECIFICATION OF CRANKING
VOLTAGE REFERENCING COOLANT TEM-
PERATURE ......................................................... 16
Removal and Installation ........................................ 17
VQ35DE ENGINE MODELS (2WD) .................... 17VQ35DE ENGINE MODELS (AWD) .................... 18
VK45DE ENGINE MODELS ................................ 19
Disassembly and Assembly .................................... 20
VQ35DE ENGINE MODELS (2WD) .................... 20
VQ35DE ENGINE MODELS (AWD) .................... 21
VK45DE ENGINE MODELS ................................ 22
INSPECTION AFTER DISASSEMBLY ................ 22
CHARGING SYSTEM ............................................... 23
System Description ................................................. 23
DESCRIPTION .................................................... 23
MALFUNCTION INDICATOR .............................. 23
POWER GENERATION VOLTAGE VARIABLE
CONTROL SYSTEM ........................................... 24
Wiring Diagram — CHARGE — ............................. 25
VQ35DE ENGINE MODELS (2WD) .................... 25
VQ35DE ENGINE MODELS (AWD) .................... 26
VK45DE ENGINE MODELS .............................
... 27
Trouble Diagnoses with Battery/Starting/Charging
System Tester (Charging) ....................................... 28
DIAGNOSTIC RESULT ITEM CHART ................ 30
WORK FLOW ...................................................... 31
PRELIMINARY INSPECTION ............................. 32
DIAGNOSTIC PROCEDURE 1 ........................... 32
DIAGNOSTIC PROCEDURE 2 ........................... 33
DIAGNOSTIC PROCEDURE 3 ........................... 33
DIAGNOSTIC PROCEDURE 4 ........................... 34
Power Generation Voltage Variable Control System
Operation Inspection .............................................. 35
Removal and Installation ........................................ 37
VQ35DE ENGINE MODELS ............................... 37
VK45DE ENGINE MODELS ................................ 39
Disassembly and Assembly .................................... 41
VQ35DE ENGINE MODELS ............................... 41
VK45DE ENGINE MODELS ................................ 42
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 43
Battery .................................................................... 43
Starter ..................................................................... 43
Alternator ................................................................ 43

SC-2
PRECAUTIONS
Revision: 2006 January2006 M35/M45
PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS003NB
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.
WAR NING :
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 Power Generation Voltage Variable Control SystemNKS003NC
CAUTION:
For this model, the battery current sensor that is installed to the battery cable at the negative terminal
measures the charging/discharging current of the battery, and performs various controls. If the electri-
cal component or the ground wire is connected directly to the battery terminal, the current other than
that being measured with the battery current sensor is charging to or discharging from the battery.
This condition causes the malfunction of the control, and then the battery discharge may occur. Do
not connect the electrical component or the ground wire directly to the battery terminal.

SC-32
CHARGING SYSTEM
Revision: 2006 January2006 M35/M45
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 fuse and fusible link.
OK or NG
OK >> GO TO 3.
NG >> Be sure to eliminate cause of malfunction before installing new fuse.
3. CHECK “E” TERMINAL CONNECTION
Check if “E” terminal (alternator ground harness) is clean and tight.
OK or NG
OK >> GO TO 4.
NG >> Repair “E” terminal connection.
4. CHECK ALTERNATOR DRIVE BELT TENSION
Check alternator drive belt tension. Refer to EM-15, "
Checking Drive Belts" (VQ35DE) or EM-174, "Checking
Drive Belts" (VK45DE).
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 Battery/Starting/Charging
system test. Refer to SC-28, "
Trouble Diagnoses with Battery/Starting/Charging System Tester
(Charging)" .
Unit Power source (Power supply terminals) Fuse and fusible link No.
Alternator Battery (“S” terminal) 36
Combination meter Ignition switch ON (“L” terminal) 14

CHARGING SYSTEM
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Removal and Installation NKS003NR
VQ35DE ENGINE MODELS
Removal (2WD Models)
1. Disconnect the battery cable from the negative terminal.
2. Remove engine front undercover, using power tools.
3. Remove alternator and power steering oil pump belt. Refer to EM-15, "
DRIVE BELTS" .
4. Disconnect alternator connector (1).
5. Remove “B” terminal nut (2).
6. Remove the harness bracket bolts (A).
7. Remove oil pressure switch harness clip (A) from alternator stay.
8. Disconnect oil pressure switch connector (1).
9. Remove alternator mounting bolt (B) and alternator stay mount-
ing bolt (C) using power tools, then remove alternator stay (2).
10. Remove alternator mounting bolt (D), using power tools.
11. Remove alternator assembly downward from the vehicle.
1. “B” terminal nut 2. “B” terminal harness 3. Alternator connector
4. Alternator mounting bolt 5. Alternator stay mounting bolt 6. Alternator stay
7. Alternator : Nꞏm (kg-m, ft-lb) : Engine front
PKIB8815E
SKIB2605J
PKIB8817E

SC-38
CHARGING SYSTEM
Revision: 2006 January2006 M35/M45
Removal (AWD Models)
1. Disconnect the battery cable from the negative terminal.
2. Remove power steering oil reservoir tank from the bracket.
3. Remove the clips (A) and the hose clamp (B) from the harness
bracket (1).
4. Remove engine front undercover, using power tools.
5. Remove alternator and power steering oil pump belt. Refer to
EM-15, "
DRIVE BELTS" .
6. Remove alternator mounting bolt (A) and alternator stay mount-
ing bolt (B) using power tools, then remove alternator stay (1).
7. Remove alternator mounting bolt (C), using power tools.
8. Pull and turn alternator, and then remove the harness bracket
bolts (A).
9. Disconnect alternator connector (1).
10. Remove “B” terminal nut (2).
11. Remove alternator assembly downward from the vehicle.
Alternator Pulley Inspection
Perform the following.
Make sure that alternator pulley does not rattle.
Make sure that alternator pulley nut is tight.
Installation
Installation is the reverse order of removal.
CAUTION:
Be sure to tighten “B” terminal nut carefully.
Install alternator, and check tension of belt. Refer to EM-15, "Checking Drive Belts" .
For this model, the power generation voltage variable control system that controls the power generation
voltage of the alternator has been adopted. Therefore, the power generation voltage variable control sys-
tem operation inspection should be performed after replacing the alternator, and then make sure that the
system operates normally. Refer to SC-35, "
Power Generation Voltage Variable Control System Operation
Inspection" .
PKIB8818E
PKIB8819E
SKIB2608J
Alternator pulley nut:
: 118 Nꞏm (12.0 kg-m, 87 ft-lb)