2007 INFINITI M35 belt

PRECAUTIONS
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Revision: 2007 April2007 M35/M45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NGS000CZ
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 Necessary for Steering Wheel Rotation After Battery DisconnectNGS000D0
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.

Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS/IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
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Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Trouble Shooting ChartNGS000D4
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
PS-8PS-8PS-24PS-24PS-24PS-8PS-10PS-10
EM-16
,EM-174PS-10—
PS-23PS-16PS-13PS-21
NVH in PR section
NVH in RFD section
NVH in FAX, RAX, FSU, RSU section
NVH in WT section
NVH in WT section
NVH in FAX section
NVH in BR section
Possible cause and SUSPECTED PARTS
Fluid level
Air in hydraulic system
Outer socket ball joint swinging torque
Outer socket ball joint rotating torque
Outer socket ball joint end play
Steering fluid leakage
Steering wheel play
Steering gear rack sliding force
Drive belt looseness
Improper steering wheel
Improper installation or looseness of tilt lock lever
Mounting rubber deterioration
Steering column deformation or damage
Improper installation or looseness of steering column
Steering linkage looseness
PROPELLER SHAFT
DIFFERENTIAL
AXLE and SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
Symptom SteeringNoise× × ××××× × × ×××××× ×
Shake×× ××××××
Vibration×××× ××××
Shimmy× × × ××× ×
Judder× × ××× ×

PS-30
POWER STEERING OIL PUMP
Revision: 2007 April2007 M35/M45
POWER STEERING OIL PUMPPFP:49110
On-Vehicle Inspection and ServiceNGS000DE
CHECKING RELIEF OIL PRESSURE
CAUTION:
Make sure that belt tension is normal before starting the following procedure.
1. Connect the hydraulic pressure gauge [SST] between oil pump
discharge connector and high-pressure hose. Bleed air from the
hydraulic circuit while opening valve fully. Refer to PS-8, "
Air
Bleeding Hydraulic System" .
2. Start engine. Run engine until oil temperature reaches 50 to
80°C (122 to 176°F).
CAUTION:

Leave the valve of the hydraulic pressure gauge [SST]
fully open while starting and running engine. If engine is
started with the valve closed, the hydraulic pressure in
oil pump goes up to the relief pressure along with
unusual increase of oil temperature.

Be sure to keep hose clear of belts and other parts when
engine is started.
3. Fully close the hydraulic pressure gauge [SST] valve with
engine at idle and measure the relief oil pressure.
CAUTION:
Never keep valve closed for 10 seconds or longer.
4. Open the valve slowly after measuring. Repair oil pump if the
relief oil pressure is outside the standard. Refer to PS-31, "
Dis-
assembly and Assembly (Models with VK45DE)" , PS-35, "Disassembly and Assembly (Models with
VQ35DE)" .
5. After inspection, disconnect the hydraulic pressure gauge [SST] from hydraulic circuit, then add fluid and
bleed air. Refer to PS-8, "
Air Bleeding Hydraulic System" .
Removal and InstallationNGS000DF
REMOVAL
1. Drain power steering fluid from reservoir tank.
2. Remove undercover from vehicle with a power tool.
3. Loosen drive belt. Refer to EM-16, "
DRIVE BELTS" (VQ35DE), EM-174, "DRIVE BELTS" (VK45DE).
4. Remove drive belt from oil pump pulley.
5. Remove piping of high pressure and low pressure (drain fluid from their pipings). Refer to PS-39,
"HYDRAULIC LINE" .
6. Remove power steering oil pump mounting bolts, and then remove power steering oil pump. Refer to PS-
39, "Removal and Installation" .
INSTALLATION
Installation is the reverse order of removal. For tightening torque, refer to PS-39, "HYDRAULIC LINE" .

Perform the following procedure after installing.
–Adjust belt tension (VQ35DE). Refer to EM-16, "Tension Adjustment" .
–About the installation of VK45DE drive belt, refer to EM-174, "Tension Adjustment" .
–Bleed air. Refer to PS-8, "Air Bleeding Hydraulic System" . Relief oil pressure:
8,520 - 9,320 kpa (86.9 - 95.1 kg/cm
2 , 1,235 - 1,351 psi)
SGIA0915E

RF-1
ROOF
I BODY
CONTENTS
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SECTION RF
A
B
RF
Revision: 2007 April2007 M35/M45
ROOF
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions .............................................................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 3
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 4
Work Flow ................................................................ 4
CUSTOMER INTERVIEW ..................................... 4
DUPLICATE THE NOISE AND TEST DRIVE ....... 5
CHECK RELATED SERVICE BULLETINS ........... 5
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 5
REPAIR THE CAUSE ........................................... 5
CONFIRM THE REPAIR ....................................... 6
Generic Squeak and Rattle Troubleshooting ........... 6
INSTRUMENT PANEL .......................................... 6
CENTER CONSOLE ............................................. 6
DOORS ................................................................. 6
TRUNK .................................................................. 7
SUNROOF/HEADLINING ..................................... 7
SEATS ................................................................... 7
UNDERHOOD ....................................................... 7
Diagnostic Worksheet .............................................. 8
SUNROOF ................................................................ 10
Component Parts and Harness Connector Location ... 10
System Description ................................................. 11
TILT UP / SLIDE CLOSE OPERATION ................ 11TILT DOWN / SLIDE OPEN OPERATION .......... 11
AUTO OPERATION ............................................. 11
RETAINED POWER OPERATION ...................... 11
ANTI-PINCH FUNCTION .................................... 12
INITIALIZATION PROCEDURE .......................... 12
Wiring Diagram — SROOF — ................................ 13
Terminals and Reference Value for BCM ............... 15
Terminals and Reference Value for Sunroof Motor
Assembly ................................................................ 15
CONSULT-II Function (BCM) ................................. 16
CONSULT-II START PROCEDURE .................... 16
ACTIVE TEST ..................................................... 16
WORK SUPPORT ............................................... 16
DATA MONITOR ................................................. 16
Work Flow ............................................................... 17
Diagnosis Symptom Chart ...................................... 17
Check BCM Power Supply and Ground Circuit ...... 17
Check Sunroof Motor Assembly Power Supply and
Ground Circuit ........................................................ 18
Check Sunroof Switch ............................................ 20
Check Door Switch ................................................. 22
Fitting Adjustment ................................................... 24
RID WEATHERSTRIP OVERLAP ADJUST-
MENT AND SURFACE MISMATCH ADJUST-
MENT .................................................................. 24
Removal and Installation ........................................ 24
SUNROOF UNIT ................................................. 26
Disassembly and Assembly .................................... 27
DISASSEMBLY ................................................... 28
ASSEMBLY ......................................................... 28

RF-2
PRECAUTIONS
Revision: 2007 April2007 M35/M45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NIS0023J
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 NIS0023K

Disconnect both battery cables in advance.

Disconnect air bag system line in advance.

Do not tamper with or force air bag lid open, as this may adversely affect air bag performance.

Be careful not to scratch pad and other parts.

When removing or disassembling any part, be careful not to damage or deform it. Protect parts, which
may get in the way with cloth.

When removing parts with a screwdriver or other tool, protect parts by wrapping them with vinyl or tape.

Keep removed parts protected with cloth.

If a clip is deformed or damaged, replace it.

If an unreusable part is removed, replace it with a new one.

Tighten bolts and nuts firmly to the specified torque.

After re-assembly has been completed, make sure each part functions correctly.

Remove stains in the following way.
Water-soluble stains:
Dip a soft cloth in warm water, and then squeeze it tightly. After wiping the stain, wipe with a soft dry cloth.
Oil stain:
Dissolve a synthetic detergent in warm water (density of 2 to 3% or less), dip the cloth, then clean off the stain
with the cloth. Next, dip the cloth in fresh water and squeeze it tightly. Then clean off the detergent completely.
Then wipe the area with a soft dry cloth.

Do not use any organic solvent, such as thinner or benzine.

SB-1
SEAT BELTS
H RESTRAINTS
CONTENTS
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SECTION SB
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SB
Revision: 2007 April2007 M35/M45
SEAT BELTS
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precaution for Seat Belt Service .............................. 2
AFTER A COLLISION ........................................... 2
PRE-CRASH SEAT BELT .......................................... 3
Component Parts and Harness Connector Location ..... 3
System Description .................................................. 3
FUNCTION DESCRIPTION .................................. 4
FAIL-SAFE MODE ................................................ 4
CAN Communication System Description ................ 5
CAN Communication Unit ........................................ 5
Schematic ................................................................ 6
Wiring Diagram — PSB — ....................................... 7
Terminals and Reference Value for Pre-Crash Seat
Belt Control Unit ..................................................... 13
Work Flow .............................................................. 13
CONSULT-II Function (PRECRASH SEATBELT) ... 14
CONSULT-II START PROCEDURE .................... 14
HOW TO READ SELF-DIAGNOSTIC RESULTS ... 14
SELF-DIAGNOSTIC RESULTS ITEM CHART ... 14
DATA MONITOR ITEM CHART .......................... 14
Preliminary Check .................................................. 15
PRE-CRASH SEAT BELT OPERATION
INSPECTION ...................................................... 15
Diagnoses Symptom Chart .................................... 15
Check CAN Communication Circuit [U1000] .......... 15
Check Ignition Power Supply Circuit ...................... 16
Check Motor Power Supply and Ground Circuit
[B2454] ................................................................... 16
Check Seat Belt Buckle Switch (Driver Side) Circuit ... 18
Check Seat Belt Buckle Switch (Passenger Side)
Circuit ..................................................................... 20
Check Brake Pedal Stroke Sensor Circuit [B2453] ... 21
Check Pre-Crash Seat Belt Motor LH Circuit [B2452]
... 24
Check Pre-Crash Seat Belt Motor RH Circuit
[B2451] ................................................................... 26Check Brake Pedal Stroke Sensor Shield Wire Cir-
cuit .......................................................................... 27
Removal and Installation of Pre-Crash Seat Belt
Control Unit ............................................................. 28
REMOVAL ........................................................... 28
INSTALLATION ................................................... 28
SEAT BELTS ............................................................. 29
System Description ................................................. 29
SEAT BELT WARNING CHIME ........................... 29
SEAT BELT WARNING LAMP ............................. 29
Removal and Installation of Front Seat Belt ........... 29
REMOVAL OF SEAT BELT RETRACTOR .......... 29
INSTALLATION OF SEAT BELT RETRACTOR ... 30
REMOVAL OF SEAT BELT BUCKLE .................. 30
INSTALLATION OF SEAT BELT BUCKLE .......... 30
Removal and Installation of Rear Seat Belt ............ 31
REMOVAL OF SEAT BELT RETRACTOR .......... 31
INSTALLATION OF SEAT BELT RETRACTOR ... 31
REMOVAL OF SEAT BELT BUCKLE .................. 31
INSTALLATION OF SEAT BELT BUCKLE .......... 32
Seat Belt Inspection ................................................ 32
AFTER A COLLISION ......................................... 32
PRELIMINARY CHECKS .................................... 32
SEAT BELT RETRACTOR ON-VEHICLE
CHECK ................................................................ 33
SEAT BELT RETRACTOR OFF-VEHICLE
CHECK (FRONT SEAT BELT) ............................ 34
SEAT BELT RETRACTOR OFF-VEHICLE
CHECK (REAR SEAT BELT) ............................... 34
LATCH (LOWER ANCHORS AND TETHER FOR
CHILDREN) SYSTEM ............................................... 35
Removal and Installation ........................................ 35
REMOVAL ........................................................... 35
INSTALLATION ................................................... 35
TOP TETHER STRAP CHILD RESTRAINT ............. 36
Removal and Installation ........................................ 36
REMOVAL ........................................................... 36
INSTALLATION ................................................... 36

SB-2
PRECAUTIONS
Revision: 2007 April2007 M35/M45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NHS0007V
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 ServiceNHS0007W
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.
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.

The front seat belt pre-tensioner should be replaced even if the seat belts are not in use during the colli-
sion in which the air bags are deployed.

PRE-CRASH SEAT BELT
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Revision: 2007 April2007 M35/M45
PRE-CRASH SEAT BELTPFP:98845
Component Parts and Harness Connector LocationNHS0007X
System DescriptionNHS0007Y

Pre-crash seat belt system is adapted to front seat belts RH/LH.

When the pre-crash seat belt control unit judges the emergency braking operation, it gives the sense of
security by the motor built into the pre-crash seat belt retracting the shoulder belt and suppressing the
crew's posture change. Also, it eases the damage of the collision.
PHIA1123E
1. Fuse block (J/B) 2.Fuse, fusible link and relay block
(J/B)3.Pre-crash seat belt control unit B142
(View with the trunk side finisher LH
removed)
4.Brake pedal stroke sensor E125
(View with the instrument driver
lower panel removed)5.Pre-crash seat belt motor B32 (LH),
B422 (RH)
(View with the center pillar lower
garnish removed)6.Seat belt buckle switch B203 (driver
seat) B253 (passenger seat)