belt INFINITI FX35 2005 Service Manual

SRS-22
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
NOTE:

Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunc-
tion is eliminated using air bag warning lamp or CONSULT-II each time repair is finished. If malfunction is
still observed, proceed to the next step. When malfunction is eliminated, further repair work is not
required.
PRE-TEN FRONT RH
[OPEN]
Front RH pre-tensioner circuit is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible damage.
3. Replace the front RH seat belt.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
PRE-TEN FRONT RH
[VB-SHORT]

Front RH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT RH
[GND-SHORT]

Front RH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT RH
[SHORT]

Front RH pre-tensioner circuit is shorted between lines.
CURTAIN MODULE LH
[OPEN]

LH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. Replace the LH side curtain air bag module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
CURTAIN MODULE LH
[VB-SHORT]

LH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE LH
[GND-SHORT]

LH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE LH
[SHORT]

LH side curtain air bag module circuit is shorted between lines.
CURTAIN MODULE RH
[OPEN]

RH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. Replace the RH side curtain air bag module.
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
CURTAIN MODULE RH
[VB-SHORT]

RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE RH
[GND-SHORT]

RH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE RH
[SHORT]

RH side curtain air bag module circuit is shorted between lines.
CONTROL UNIT

Diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness connection.
2. Replace the diagnosis sensor unit.
Diagnostic item Explanation
Repair order
“Recheck SRS at each replacement”

SRS-28
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
SATELLITE SENS LH
[UNIT FAIL]
SATELLITE SENS LH
[COMM FAIL]
LH side air bag (Satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. If the harness check result is OK, replace the diagnosis sensor unit
and LH side air bag (Satellite) sen-
sor.
SATELLITE SENS RH
[UNIT FAIL]
SATELLITE SENS RH
[COMM FAIL]

RH side air bag (Satellite) sensor 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. If the harness check result is OK, replace the diagnosis sensor unit
and RH side air bag (Satellite) sen-
sor.
PRE-TEN FRONT LH
[OPEN]

Front LH pre-tensioner circuit is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible damage.
3. If the harness check result is OK, replace the diagnosis sensor unit
and front LH seat belt.
PRE-TEN FRONT LH
[VB-SHORT]

Front LH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT LH
[GND-SHORT]

Front LH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT LH
[SHORT]

Front LH pre-tensioner circuit is shorted between lines.
PRE-TEN FRONT RH
[OPEN]

Front RH pre-tensioner circuit is open. 1. Visually check the wiring harness
connections.
2. Replace the harness if it has visible damage.
3. If the harness check result is OK, replace the diagnosis sensor unit
and front RH seat belt.
PRE-TEN FRONT RH
[VB-SHORT]

Front RH pre-tensioner circuit is shorted to a power supply cir-
cuit.
PRE-TEN FRONT RH
[GND-SHORT]

Front RH pre-tensioner circuit is shorted to ground.
PRE-TEN FRONT RH
[SHORT]

Front RH pre-tensioner circuit is shorted between lines.
CURTAIN MODULE LH
[OPEN]

LH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. If the harness check result is OK, replace the diagnosis sensor unit
and LH side curtain air bag module.
CURTAIN MODULE LH
[VB-SHORT]

LH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE LH
[GND-SHORT]

LH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE LH
[SHORT]

LH side curtain air bag module circuit is shorted between lines.
CURTAIN MODULE RH
[OPEN]

RH side curtain air bag module circuit is open. 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible damage.
3. If the harness check result is OK, replace the diagnosis sensor unit
and RH side curtain air bag module.
CURTAIN MODULE RH
[VB-SHORT]

RH side curtain air bag module circuit is shorted to a power sup-
ply circuit.
CURTAIN MODULE RH
[GND-SHORT]

RH side curtain air bag module circuit is shorted to ground.
CURTAIN MODULE RH
[SHORT]

RH side curtain air bag module circuit is shorted between lines.
CONTROL UNIT

Diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness connection.
2. Replace the diagnosis sensor unit.
Diagnostic item Explanation
Repair order
“Recheck SRS at each replacement”

SIDE AIR BAG (SATELLITE) SENSOR SRS-43
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SRS
Revision: 2005 July 2005 FX
SIDE AIR BAG (SATELLITE) SENSORPFP:98830
Removal and InstallationAHS000I2
REMOVAL
CAUTION:
Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
1. Remove seat belt pre-tensioner. Refer to SB-3, "
Removal and Installation of Front Seat Belt" .
2. Remove side air bag (Satellite) sensor fixing nuts.
3. Remove the side air bag (Satellite) sensor connector.
CAUTION:

Do not use old nuts; replace with new ones.

Check side air bag (Satellite) sensor to ensure it is free of deformities, dents, cracks or rust. If it
shows any visible signs of damage, replace it with new one.

Do not disassemble side air bag (Satellite) sensor.

Replace side air bag (Satellite) sensor if it has been dropped or sustained an impact.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Check side air bag (Satellite) sensor for proper installation.

After replacement of side air bag (Satellite) sensor, perform self-diagnosis to make sure that no
malfunction is detected. Refer to SRS-17, "
SRS Operation Check" .
PHIA0314E

SRS-44
FRONT SEAT BELT PRE-TENSIONER
Revision: 2005 July 2005 FX
FRONT SEAT BELT PRE-TENSIONERPFP:86884
Removal and InstallationAHS000I3
For removal and installation procedures, refer to SB-3, "Removal and Installation of Front Seat Belt" .

DIAGNOSIS SENSOR UNIT SRS-45
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SRS
Revision: 2005 July 2005 FX
DIAGNOSIS SENSOR UNITPFP:28556
Removal and InstallationAHS000I4
REMOVAL
CAUTION:
Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 min-
utes.
1. Disconnect each harness connector for the air bag module and seat belt pre-tensioner.
2. Remove center console. Refer to IP-11, "
Removal and Installation" .
3. Disconnect diagnosis sensor unit connector.
4. Remove special bolts from the diagnosis sensor unit.
CAUTION:

Do not use old bolts. Replace with new ones.

Check diagnosis sensor unit bracket to ensure it is free of
deformities, dents, cracks or rust. If it shows any visible
things of damage, replace with new one.

Replace diagnosis sensor unit if it has been dropped or
sustained an impact.
INSTALLATION
Install in the reverse order of removal.
CAUTION:

Check the diagnosis sensor unit for proper installation.

After replacement of diagnosis sensor unit, perform self-diagnosis to make sure that no malfunc-
tion is detected. Refer to SRS-17, "
SRS Operation Check" .
ECU DISCRIMINATED NO.
After replacing the diagnosis sensor unit, confirm that the diagnosis sensor unit identification is correct for the
vehicle as equipped.
PHIA0315E
Specification ECU DISCRIMINATED No.
Models with driver and passenger air bags, seat belt pre-tensioner, side air bags and curtain air bags FB02

SRS-46
COLLISION DIAGNOSIS
Revision: 2005 July 2005 FX
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
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]

COLLISION DIAGNOSIS SRS-49
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SRS
Revision: 2005 July 2005 FX
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
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SECTION TF
A
B
TF
Revision: 2005 July 2005 FX
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 ................................................................. ... 20 AWD CONTROL UNIT INSPECTION TABLE ..
... 20
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

PRECAUTIONS TF-3
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Revision: 2005 July 2005 FX
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 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-20,
"AWD Control Unit Input/Output Signal Reference Values" .
SEF289H
SEF291H
SDIA1848E