2004 INFINITI FX35 Service Manual

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INFINITI FX35 2004 Service Manual SRS-56
COLLISION DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionAHS000I6
To repair the SRS, perform the following steps.
When SRS (except the front

SRS-56
COLLISION DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
COLLISION DIAGNOSISPFP:00015
For Frontal CollisionAHS000I6
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-17, "
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-17, "
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-17, "
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
Air bag module
(driver or front pas-
senger air bag mod-
ule)REPLACE
Install with new bolts.1. Remove air bag module. Check harness cover and connectors for damage, termi-
nals for deformities, and harness for binding.
2.
–Install driver air bag module into the steering wheel to check fit and alignment with
the wheel.
–Install passenger air bag module into the instrument panel to check fit with the
instrument panel.
3. No damage found, reinstall with new bolts.
4. If damaged—REPLACE air bag modules with new special bolts.
Air bag must be deployed before disposal.
Crash zone sensor REPLACE the crash
zone sensor and
bracket with new
nuts.1. Remove the crash zone sensor. Check harness connectors for damage, terminals
for deformities, and harness for binding.
2. Check for visible signs of damage (dents, cracks, deformation) of the crash zone
sensor and bracket.
3. Install the crash zone sensor to check fit.
4. No damage found, reinstall with new bolts.
5. If damaged—REPLACE the crash zone sensor and bracket with new nuts.

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INFINITI FX35 2004 Service Manual COLLISION DIAGNOSIS
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SRS
Revision: 2004 November 2004 FX35/FX45
For Side CollisionAHS000I7
WHEN THE SIDE AIR BAG IS ACTIVATED IN THE SIDE COLLISION:
1. Replace the followi

COLLISION DIAGNOSIS
SRS-57
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SRS
Revision: 2004 November 2004 FX35/FX45
For Side CollisionAHS000I7
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-17, "
SRS Operation
Check" . Ensure entire SRS operates properly.
Seat belt pre-ten-
sioner assembliesREPLACE
Install seat belt pre-
tensioner with new
bolts.1. Remove seat belt pre-tensioners.
Check harness cover and connectors for damage, terminals for deformities, and
harness for binding.
2. Check belts for damage and anchors for loose mounting.
3. Check retractor for smooth operation.
4. Check seat belt adjuster for damage.
5. If no damage is found, reinstall seat belt pre-tensioner assembly with new bolts.
6. If damaged—REPLACE seat belt pre-tensioners with new bolts.
Seat belt pre-tensioners must be deployed before disposal.
Diagnosis sensor unit REPLACE
Install with new bolts.1. Check case for dents, cracks or deformities.
2. Check connectors for damage, and terminals for deformities.
3. If no damage is found, reinstall with new bolts and ground bolt.
4. If damaged—REPLACE diagnosis sensor unit with new bolts and ground bolt.
Steering wheel 1. Visually check steering wheel for deformities.
2. Check harness (built into steering wheel) and connectors for damage, and terminals for deformities.
3. Install air bag module to check fit or alignment with steering wheel.
4. Check steering wheel for excessive free play.
5. If no damage is found, reinstall with nut.
6. If damaged—REPLACE.
Spiral cable 1. Visually check spiral cable and combination switch for damage.
2. Check connectors and protective tape for damage.
3. Check steering wheel for noise, binding or heavy operation.
4. If no damage is found, reinstall with screws.
5. If damaged—REPLACE.
Harness and connec-
tors1. 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

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INFINITI FX35 2004 Service Manual SRS-58
COLLISION DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
WHEN SRS IS NOT ACTIVATED IN THE SIDE COLLISION:
1. Check the SRS components and the related parts using the following table.
–Repla

SRS-58
COLLISION DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45
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-17, "
SRS Operation
Check" . Ensure entire SRS operates properly.
SRS INSPECTION (FOR SIDE COLLISION)
PartFront side air bag and
side curtain air bag
are activatedFront side air bag and side curtain air bag are NOT activated
LH or RH side curtain
air bag moduleReplace the side cur-
tain air bag module.
(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.
Air bag must be deployed before disposal.
Front LH or RH side
air bag moduleREPLACE 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) sensorREPLACE 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.
Seat belt pre-ten-
sioner assembly1. 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.
The seat belt pre-tensioner assembly must be deployed before disposal.

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INFINITI FX35 2004 Service Manual COLLISION DIAGNOSIS
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SRS
Revision: 2004 November 2004 FX35/FX45
Seat with front side
air bagREPLACE all parts of
front seatback
(including front seat-
back frame)1. Vis

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INFINITI FX35 2004 Service Manual SRS-60
COLLISION DIAGNOSIS
Revision: 2004 November 2004 FX35/FX45

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INFINITI FX35 2004 Service Manual TF-1
TRANSFER
D DRIVELINE/AXLE
CONTENTS
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SECTION TF
A
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TF
Revision: 2004 November 2004 FX35/FX45
TRANSFER
PRECAUTIONS .......................................................... 3

TF-1
TRANSFER
D DRIVELINE/AXLE
CONTENTS
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SECTION TF
A
B
TF
Revision: 2004 November 2004 FX35/FX45
TRANSFER
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions .............................................................. 3
Service Notice .......................................................... 4
Wiring Diagrams and Trouble Diagnosis .................. 4
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5
Commercial Service Tools ........................................ 6
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 7
NVH Troubleshooting Chart ..................................... 7
TRANSFER FLUID ..................................................... 8
Replacement ............................................................ 8
DRAINING ............................................................. 8
FILLING ................................................................. 8
Inspection ................................................................. 8
FLUID LEAKAGE AND FLUID LEVEL .................. 8
AWD SYSTEM ............................................................ 9
Power Transfer Diagram .......................................... 9
System Description .................................................. 9
DESCRIPTION ...................................................... 9
ELECTRIC CONTROLLED COUPLING ............. 10
AWD CONTROL UNIT ........................................ 10
AWD WARNING LAMP ........................................ 11
System Diagram ...................................................... 11
COMPONENTS FUNCTION DESCRIPTION ..... 12
CAN Communication .............................................. 12
SYSTEM DESCRIPTION .................................... 12
TROUBLE DIAGNOSIS ............................................ 13
Fail-Safe Function .................................................. 13
How to Perform Trouble Diagnosis ........................ 13
BASIC CONCEPT ............................................... 13
Location of Electrical Parts ..................................... 14
Circuit Diagram ...................................................... 15
Wiring Diagram — AWD — .................................... 16
Trouble Diagnosis Chart for Symptoms ................. 19
AWD Control Unit Input/Output Signal Reference
Values .................................................................... 19AWD CONTROL UNIT INSPECTION TABLE ..... 19
CONSULT-II Function (ALL MODE AWD/4WD) ..... 21
FUNCTION .......................................................... 21
CONSULT-II SETTING PROCEDURE ................ 21
SELF-DIAG RESULT MODE ............................... 21
DATA MONITOR MODE ...................................... 23
ACTIVE TEST MODE ......................................... 24
AWD CONTROL UNIT PART NUMBER ............. 24
TROUBLE DIAGNOSIS FOR SYSTEM .................... 25
Power Supply Circuit For AWD Control Unit ........... 25
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ................................................ 25
DIAGNOSTIC PROCEDURE .............................. 25
AWD Control Unit ................................................... 26
DIAGNOSTIC PROCEDURE .............................. 26
ABS System ........................................................... 26
DIAGNOSTIC PROCEDURE .............................. 26
AWD Solenoid ........................................................ 27
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ................................................ 27
DIAGNOSTIC PROCEDURE .............................. 27
COMPONENT INSPECTION .............................. 29
AWD Actuator Relay ............................................... 30
CONSULT-II REFERENCE VALUE IN DATA
MONITOR MODE ................................................ 30
DIAGNOSTIC PROCEDURE .............................. 30
Engine Control Signal ............................................. 31
DIAGNOSTIC PROCEDURE .............................. 31
CAN Communication Line ...................................... 31
DIAGNOSTIC PROCEDURE .............................. 31
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 32
AWD Warning Lamp Does Not Turn ON When The
Ignition Switch Is Turned To ON ............................. 32
DIAGNOSTIC PROCEDURE .............................. 32
AWD Warning Lamp Does Not Turn OFF Several
Seconds After Engine Started ................................ 32
DIAGNOSTIC PROCEDURE .............................. 32
Heavy Tight-corner Braking Symptom Occurs
When The Vehicle Is Driven And The Steering
Wheel Is Turned Fully To Either Side After The

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INFINITI FX35 2004 Service Manual TF-2Revision: 2004 November 2004 FX35/FX45Engine Is Started .................................................... 34
DIAGNOSTIC PROCEDURE .............................. 34
Vehicle Does Not Enter AWD

TF-2Revision: 2004 November 2004 FX35/FX45Engine Is Started .................................................... 34
DIAGNOSTIC PROCEDURE .............................. 34
Vehicle Does Not Enter AWD Mode Even Though
AWD Warning Lamp Turned To OFF ...................... 35
DIAGNOSTIC PROCEDURE .............................. 35
While Driving, AWD Warning Lamp Flashes Rapidly
(When Flashing In Approx. 1 Minute And Then Turn-
ing OFF) ................................................................. 36
While Driving, AWD Warning Lamp Flashes Slowly
(When Continuing To Flash Until Turning Ignition
Switch OFF) ............................................................ 36
DIAGNOSTIC PROCEDURE .............................. 36
AWD CONTROL UNIT .............................................. 38
Removal and Installation ........................................ 38
REMOVAL ........................................................... 38
INSTALLATION .................................................... 38
FRONT OIL SEAL ..................................................... 39
Removal and Installation ........................................ 39
REMOVAL ........................................................... 39
INSTALLATION .................................................... 39REAR OIL SEAL ....................................................... 40
Removal and Installation ......................................... 40
REMOVAL ............................................................ 40
INSTALLATION .................................................... 41
AIR BREATHER HOSE ............................................. 42
Removal and Installation ......................................... 42
TRANSFER ASSEMBLY ........................................... 43
Removal and Installation ......................................... 43
REMOVAL ............................................................ 43
INSTALLATION .................................................... 43
Components ............................................................ 44
Disassembly and Assembly .................................... 45
DISASSEMBLY .................................................... 45
INSPECTION ....................................................... 49
ASSEMBLY .......................................................... 49
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 55
General Specifications ............................................ 55

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INFINITI FX35 2004 Service Manual PRECAUTIONS
TF-3
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Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER

PRECAUTIONS
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Revision: 2004 November 2004 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ADS000RH
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.
PrecautionsADS000RI
Before connecting or disconnecting the AWD control unit
harness connector, turn ignition switch “OFF” and discon-
nect negative battery 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-19,
"AWD Control Unit Input/Output Signal Reference Values" .
SEF289H
SEF291H
SDIA1848E

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