INFINITI FX35 2007 Service Manual

COLLISION DIAGNOSIS SRS-55
C
D E
F
G
I
J
K L
M A
B
SRS
Revision: 2006 July 2007 FX35/FX45
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionNHS0007T
To repair the SRS, perform the following steps.
When SRS (except the front side air bag and side curtain air bag modules) is activated in a collision:
1. Replace the diagnosis sensor unit.
2. Remove the air bag modules (except the front side air bag modules and side curtain air bag modules), crash zone sensor assembly, bracket and seat belt pre-tensioner assemblies.
3. Check the SRS components using the table below:
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
4. Install new air bag modules (except the front side air bag modules and side curtain air bag modules) crash zone sensor assembly, bracket and seat belt pre-tensioner assemblies.
5. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to SRS-20, "
SRS Operation
Check" for details. Ensure entire SRS operates properly.
When SRS is not activated in a collision:
1. Check the SRS components using the table below:
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
2. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to SRS-20, "
SRS Operation
Check" for details. Ensure entire SRS operates properly.
When only one front air bag module is activated in a collision:
1. Replace the following components:
–Diagnosis sensor unit
–Crash zone sensor
–Activated front air bag and seat belt pre-tensioner.
2. Check the other SRS components using the table below. (Refer to “SRS is NOT activated”.)
–Replace any SRS components showing visible signs of damage (dents, cracks and deformation).
3. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to SRS-20, "
SRS Operation
Check" for details. Ensure entire SRS operates properly.
Only one front air bag may inflate a crash, depending on the crash severity and whether the front occupants
are belted or unbelted. This does not indicate improper performance of the system. Perform self-diagnosis to
make sure the entire SRS operates properly.
SRS INSPECTION (FOR FRONTAL COLLISION)
Part SRS is activated SRS is NOT activated
Driver airbag
module If the Driver airbag has deployed:
REPLACE.
Install with new fasteners. If the Driver air bag has NOT been activated:
[same text as in current manual]
Passenger front
airbag module If the Passenger front airbag has deployed:
REPLACE.
Install with new fasteners. If the Passenger front air bag has NOT been activated:
[same text as in current manual]
Crash zone
sensor If any of the front airbags or seat belt pre-
tensionsers have been activated:
REPLACE the crash zone sensor and bracket
with new fasteners. If the front airbags or seat belt pre-tensionsers have NOT
been activated:
[same text as in current manual]
Seat belt pre-ten-
sioner assemblies If the driver or passenger Seat belt pre-ten-
sioner has been activated:
REPLACE the seat belt pre-tensioner
assemblies with new fasteners. If the pre-tensioners have NOT been activated:
[same text as in current manual]
Diagnosis sensor
unit If any of the SRS components have been
activated:
REPLACE the Diagnosis sensor unit.
Install with new fasteners. If none of the SRS components have been activated:
[same text as in current manual]

SRS-56
COLLISION DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Steering wheel [same text as in current manual]
Spiral cable If the Driver airbag has deployed: REPLACE the spiral cable. If the Driver airbag has not deployed:
[same text as in current manual]
Harness and con-
nectors 1. Check connectors for poor connection, damage, and terminals for deformities.
2. Check harness for binding, chafing, cuts, or deformities.
3. If no damage is found, reinstall the harness and connectors.
4. If damaged—REPLACE damaged section of harness. Do not repair, splice or modify any SRS harness.
Instrument panel 1. Visually check instrument panel for damage. 2. If no damage is found, reinstall the instrument panel.
3. If damaged—REPLACE the instrument panel with bolts.
Part SRS is activated SRS is NOT activated

COLLISION DIAGNOSIS SRS-57
C
D E
F
G
I
J
K L
M A
B
SRS
Revision: 2006 July 2007 FX35/FX45
For Side CollisionNHS0007U
WHEN THE SIDE AIR BAG IS ACTIVATED IN THE SIDE COLLISION:
1. Replace the following components:
–All parts of front seatback (including front seatback frame) with front side air bag module (on the side on
which front side air bag is activated)
–Curtain air bag module (on the side on which side curtain air bag is activated)
–Diagnosis sensor unit
–Satellite sensor (on the side on which side air bag and side curtain air bag are activated)
2. Check the SRS components and the related parts using the following table.
–Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
3. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to SRS-20, "
SRS Operation
Check" . Ensure entire SRS operates properly.
WHEN SRS IS NOT ACTIVATED IN THE SIDE COLLISION:
1. Check the SRS components and the related parts using the following table.
–Replace any SRS components and the related parts showing visible signs of damage (dents, cracks,
deformation).
2. Conduct self-diagnosis using CONSULT-II or “AIR BAG” warning lamp. Refer to SRS-20, "
SRS Operation
Check" . Ensure entire SRS operates properly.
SRS INSPECTION (FOR SIDE COLLISION)
Part Front side air bag and
side curtain air bag are activated Front side air bag and side curtain air bag are NOT activated
LH or RH side curtain
air bag module REPLACE the side
curtain air bag mod-
ule.
(Repair the center pil-
lar inner, etc. before
installing new one if
damaged.) 1. Check for visible signs of damage (dents, tears, deformation) of the center pillar on
the collision side.
2. If damaged—Remove the side curtain air bag module.
3. Check for visible signs of damaged (tears etc.) of the LH or RH side curtain air bag module.
4. Check harness and connectors for damage, and terminals for deformities.
5. If no damage is found, reinstall the LH or RH side curtain air bag module with new bolts.
6. If damaged—REPLACE the LH or RH side curtain air bag module with new bolts.
Front LH or RH side
air bag module REPLACE all parts of
seatback with
deployed front side
air bag module. 1. Check for visible signs of damage (dents, tears, deformation) of the seatback on
the collision side.
2. Check harness and connectors for damage, and terminals for deformities.
3. If damaged—REPLACE the front seatback assembly. Air bag must be deployed before disposal.
LH or RH side air bag
(Satellite) sensor REPLACE the side
air bag (Satellite) sen-
sor on the collision
side with new nuts.
(Repair the center pil-
lar inner, etc. before
installing new one if
damaged.) 1. Remove the LH or RH side air bag (Satellite) sensor on the collision side. Check
harness connectors for damage, terminals for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the LH or RH side air bag (Satellite) sensor.
3. Install the LH or RH side air bag (Satellite) sensor to check fit.
4. If no damage is found, reinstall the LH or RH side sir bag (Satellite) sensor with new nuts.
5. If damaged—REPLACE the LH or RH side air bag (Satellite) sensor with new nuts.
Diagnosis sensor unit REPLACE the diag- nosis sensor unit with
the new bolts. 1. Check case and bracket for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall the diagnosis sensor unit with new bolts and ground bolt.
4. If damaged—REPLACE the diagnosis sensor unit with new bolts and ground bolt.

SRS-58
COLLISION DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
Seat belt pre-ten-
sioner assembly 1. Check if the seat belt can be extended smoothly.
If the seat belt cannot be extended smoothly,
–Check for deformities of the center pillar inner.
–If the center pillar inner has no damage, REPLACE the seat belt pre-tensioner assembly.
2. Remove the seat belt pre-tensioner assembly on the collision side. Check harness cover and connectors for damage, terminals for deformities, and harness for binding.
3. Check for visible signs of damage (dents, cracks, deformation) of the seat belt pre-tensioner assembly.
4. Check seat belt adjuster for damage.
5. If no damage is found, reinstall the seat belt pre-tensioner assembly.
6. If damaged—REPLACE the seat belt pre-tensioner assembly with new bolts.
Seat with front side
air bag REPLACE all parts of
front seatback
(including front seat-
back frame) 1. Visually check the seat on the collision side.
2. Remove the seat on the collision side and check the following for damage and deformities.
–Harness, connectors and terminals
–Frame and recliner (for front and rear seat), and also adjuster and slides (for front
seat)
3. If no damage is found, reinstall the seat.
4. If damaged—REPLACE the damaged seat parts using new bolts.
Center inner pillar 1. Check the center inner pillar on the collision side for damage (dents, cracks, deformation). 2. If damaged—REPAIR the center inner pillar.
Trim/headlining 1. Check for visible signs of damage (dents, cracks, deformation) of the interior trim on the collision side. 2. If damaged—REPLACE the damaged trim parts.
Part
Front side air bag and
side curtain air bag are activated Front side air bag and side curtain air bag are NOT activated

TF-1
TRANSFER
D DRIVELINE/AXLE
CONTENTS
C E F
G H
I
J
K L
M
SECTION
A
B
TF
Revision: 2006 July 2007 FX35/FX45
TRANSFER
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions ......................................................... ..... 3
Service Notice or Precautions ............................. ..... 4
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 7
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 8
NVH Troubleshooting Chart ................................ ..... 8
TRANSFER FLUID ................................................ ..... 9
Replacement ....................................................... ..... 9
DRAINING ........................................................ ..... 9
FILLING ............................................................ ..... 9
Inspection ............................................................ ..... 9
FLUID LEAKAGE AND FLUID LEVEL ............. ..... 9
AWD SYSTEM ....................................................... ... 10
Power Transfer Diagram ..................................... ... 10
System Description ............................................. ... 10
DESCRIPTION ................................................. ... 10
ELECTRIC CONTROLLED COUPLING .......... .... 11
AWD CONTROL UNIT ..................................... .... 11
AWD WARNING LAMP .................................... ... 12
System Diagram .................................................. ... 12
COMPONENTS FUNCTION DESCRIPTION .. ... 13
CAN Communication ........................................... ... 13
SYSTEM DESCRIPTION ................................. ... 13
TROUBLE DIAGNOSIS ......................................... ... 14
Fail-Safe Function ............................................... ... 14
How to Perform Trouble Diagnosis ..................... ... 14
BASIC CONCEPT ............................................ ... 14
Location of Electrical Parts .................................. ... 15
Circuit Diagram ................................................... ... 16
Wiring Diagram — AWD — ................................. ... 17
Trouble Diagnosis Chart for Symptoms .............. ... 20
AWD Control Unit Input/Output Signal Reference
Values ................................................................. ... 21 AWD CONTROL UNIT INSPECTION TABLE ..
... 21
CONSULT-II Function (ALL MODE AWD/4WD) .. ... 22
FUNCTION ....................................................... ... 22
CONSULT-II SETTING PROCEDURE ............. ... 22
SELF-DIAG RESULT MODE ............................ ... 22
DATA MONITOR MODE ................................... ... 24
ACTIVE TEST MODE ...................................... ... 25
AWD CONTROL UNIT PART NUMBER .......... ... 25
TROUBLE DIAGNOSIS FOR SYSTEM ................. ... 26
Power Supply Circuit for AWD Control Unit ......... ... 26
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................. ... 26
DIAGNOSTIC PROCEDURE ........................... ... 26
AWD Control Unit ................................................ ... 27
DIAGNOSTIC PROCEDURE ........................... ... 27
ABS System ........................................................ ... 27
DIAGNOSTIC PROCEDURE ........................... ... 27
AWD Solenoid ..................................................... ... 28
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................. ... 28
DIAGNOSTIC PROCEDURE ........................... ... 28
COMPONENT INSPECTION ........................... ... 30
AWD Actuator Relay ............................................ ... 31
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ............................................. ... 31
DIAGNOSTIC PROCEDURE ........................... ... 31
Engine Control Signal .......................................... ... 32
DIAGNOSTIC PROCEDURE ........................... ... 32
CAN Communication Line ................................... ... 32
DIAGNOSTIC PROCEDURE ........................... ... 32
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... ... 33
AWD Warning Lamp Does Not Turn ON When The
Ignition Switch Is Turned to ON ........................... ... 33
DIAGNOSTIC PROCEDURE ........................... ... 33
AWD Warning Lamp Does Not Turn OFF Several
Seconds after Engine Started .............................. ... 33
DIAGNOSTIC PROCEDURE ........................... ... 33
Heavy Tight-Corner Braking Symptom Occurs
When The Vehicle Is Driven and The Steering Wheel
Is Turned Fully to Either Side after The Engine Is

TF-2Revision: 2006 July 2007 FX35/FX45
Started .................................................................
... 35
DIAGNOSTIC PROCEDURE ........................... ... 35
Vehicle Does Not Enter AWD Mode Even Though
AWD Warning Lamp Turned to OFF .................... ... 36
DIAGNOSTIC PROCEDURE ........................... ... 36
While Driving, AWD Warning Lamp Flashes Rapidly
(When Flashing in Approx. 1 Minute and Then Turn-
ing OFF) .............................................................. ... 37
While Driving, AWD Warning Lamp Flashes Slowly
(When Continuing to Flash until Turning Ignition
Switch OFF) ......................................................... ... 37
DIAGNOSTIC PROCEDURE ........................... ... 37
AWD CONTROL UNIT ........................................... ... 39
Removal and Installation ..................................... ... 39
REMOVAL ........................................................ ... 39
INSTALLATION ................................................. ... 39
FRONT OIL SEAL .................................................. ... 40
Removal and Installation ..................................... ... 40
REMOVAL ........................................................ ... 40
INSTALLATION ................................................. ... 40 REAR OIL SEAL ....................................................
... 41
Removal and Installation ...................................... ... 41
REMOVAL ......................................................... ... 41
INSTALLATION ................................................. ... 42
AIR BREATHER HOSE .......................................... ... 43
Removal and Installation ...................................... ... 43
TRANSFER ASSEMBLY ........................................ ... 44
Removal and Installation ...................................... ... 44
REMOVAL ......................................................... ... 44
INSTALLATION ................................................. ... 44
Disassembly and Assembly ................................. ... 45
COMPONENTS ................................................ ... 45
DISASSEMBLY ................................................. ... 46
INSPECTION .................................................... ... 51
ASSEMBLY ....................................................... ... 52
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 59
General Specifications ......................................... ... 59

PRECAUTIONS TF-3
C E F
G H
I
J
K L
M A
B
TF
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NDS0009M
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.
PrecautionsNDS0009N

Before connecting or disconnecting the AWD control unit
harness connector, turn ignition switch “OFF” and discon-
nect battery ground cable. Because battery voltage is
applied to AWD control unit even if ignition switch is turned
“OFF”.

When connecting or disconnecting pin connectors into or
from AWD control unit, take care not to damage pin termi-
nals (bend or break).
When connecting pin connectors, make sure that there are
no bends or breaks on AWD control unit pin terminal.

Before replacing AWD control unit, perform AWD control
unit input/output signal inspection and make sure whether
AWD control unit functions properly or not. Refer to TF-21,
"AWD Control Unit Input/Output Signal Reference Values" .
SEF289H
SEF291H
SDIA1848E

TF-4
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
Service Notice or PrecautionsNDS0009O

Do not reuse transfer fluid, once it has been drained.

Check the fluid level or replace the fluid only with the vehicle parked on level ground.

During removal or installation, keep inside of transfer clear of dust or dirt.

Replace all tires at the same time. Always use tires of the proper size and the same brand and pattern.
Fitting improper size and unusual wear tires applies excessive force to vehicle mechanism and can cause
longitudinal vibration.

Disassembly should be done in a clean work area, it is preferable to work in dustproof area.

Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal
parts from becoming contaminated by dirt or other foreign matter.

All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.

Check for the correct installation status prior to removal or disassembly. If matching marks are required,
be certain they do not interfere with the function of the parts when applied.

Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with a new ones if necessary.

Gaskets, seals and O-rings should be replaced any time when the transfer is disassembled.

In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, use it.

Observe the specified torque when assembling.

Clean and flush the parts sufficiently and blow-dry them.

Be careful not to damage sliding surfaces and mating surfaces.

Clean innerparts with lint-free cloth or towels. Do not use cotton work gloves and rags to prevent adhering
fibers.

PREPARATION TF-5
C E F
G H
I
J
K L
M A
B
TF
Revision: 2006 July 2007 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsNDS0009P
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
ST27862000
(—)
Drift
a: 62.5 mm (2.461 in) dia.
b: 42 mm (1.65 in) dia.

Installing front oil seal
KV381054S0
(J-34286)
Puller

Removing rear oil seal
ST30720000
(J-25405)
Drift
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.

Installing rear oil seal

Installing mainshaft oil seal
KV40104830
(—)
Drift
a: 70 mm (2.76 in) dia.
b: 63.5 mm (2.500 in) dia.

Installing rear oil seal
KV38100300
(J-25523)
Drift
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.

Removing mainshaft bearing
ST33052000
(—)
Drift
a: 28 mm (1.10 in) dia.
b: 22 mm (0.87 in) dia.

Removing mainshaft assembly
ST30611000
(J-25742-1)
Drift bar
a: 350 mm (1.10 in)
b: 25 mm (1.10 in) dia.
c: M12 × 1.5P

Removing rear bearing
ZZA0194D
ZZA0601D
ZZA0811D
ZZA1003D
ZZA1046D
ZZA1000D
NT663

TF-6
PREPARATION
Revision: 2006 July 2007 FX35/FX45
ST35321000
(—)
Drift
a: 49 mm (1.93 in) dia.
b: 41 mm (1.61 in) dia.
Removing rear bearing

Installing mainshaft assembly
ST31214000
(J-25269-B)
Drift
a: 34 mm (1.34 in) dia.
b: 25.5 mm (1.004 in) dia.

Removing front drive shaft front bearing

Removing front drive shaft rear bearing
KV38104010
(—)
Drift
a: 67 mm (2.64 in) dia.
b: 49 mm (1.93 in) dia.

Installing front drive shaft rear bearing

Installing rear bearing
ST33200000
(J-26082)
Drift
a: 60 mm (2.36 in) dia.
b: 44.5 mm (1.752 in) dia.

Installing front drive shaft front bearing
ST30621000
(J-25742-5)
Drift
a: 80 mm (3.15 in) dia.
b: 59 mm (2.32 in) dia.

Installing mainshaft bearing
Tool number
(Kent-Moore No.)
Tool name Description
ZZA1000D
ZZA0534D
ZZA1000D
ZZA1002D
ZZA1000D