2005 INFINITI FX35 power steering

PG-68
HARNESS
Revision: 2005 July 2005 FX
H/AIM LT Headlamp Aiming Control System
H/LAMP LT Headlamp
HORN WW Horn
HSEAT SE Heated Seat
I/KEY BL Intelligent Key System
I/MIRR GW Inside Mirror (Auto Anti-Dazzling Mirror)
IATS EC Intake Air Temperature Sensor
ICC ACS Intelligent Cruise Control System
ICC/BS EC ICC Brake Switch
ICC/SW EC ICC Steering Switch
ICCBOF EC ICC Brake Switch
IGNSYS EC Ignition System
ILL LT Illumination
INF/D AV Vehicle Information and Integrated Switch System
INJECT EC Injector
IVCB1 EC Intake Valve Timing Control Solenoid Valve Bank 1
IVCB2 EC Intake Valve Timing Control Solenoid Valve Bank 2
IVCSB1 EC Intake Valve Timing Control Position Sensor Bank 1
IVCSB2 EC Intake Valve Timing Control Position Sensor Bank 2
IVTB1 EC Intake Valve Timing Control System (Bank 1)
IVTB2 EC Intake Valve Timing Control System (Bank 2)
KEYLES BL Remote Keyless Entry System
KS EC Knock Sensor
LDW DI Lane Departure Warning System
M/ANT AV Manual Antenna
MAFS EC Mass Air Flow Sensor
MAIN AT Main Power Supply and Ground Circuit
MAIN EC Main Power Supply and Ground Circuit
MES AV Mobile Entertainment System
METER DI Speedometer, Tachometer, Temp. and Fuel Gauges
MIL/DL EC MIL & Data Link Connectors
MIRROR GW Power Door Mirror
MMSW AT Manual Mode Switch
NATS BL Nissan Anti-Theft System
NAVI AV Navigation System
NONDTC AT Non-Detective Items
O2H1B1 EC Heated Oxygen Sensor 1 Heater Bank 1
O2H1B2 EC Heated Oxygen Sensor 1 Heater Bank 2
O2H2B1 EC Heated Oxygen Sensor 2 Heater Bank 1
O2H2B2 EC Heated Oxygen Sensor 2 Heater Bank 2
O2S1B1 EC Heated Oxygen Sensor 1 Bank 1
O2S1B2 EC Heated Oxygen Sensor 1 Bank 2
O2S2B1 EC Heated Oxygen Sensor 2 Bank 1
O2S2B2 EC Heated Oxygen Sensor 2 Bank 2 Code Section Wiring Diagram Name

HARNESS PG-69
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P/SCKT WW Power Socket
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE)
PHSB1 EC Camshaft Position Sensor (PHASE) (Bank 1)
PHSB2 EC Camshaft Position Sensor (PHASE) (Bank 2)
PNP/SW AT Park/Neutral Position Switch
PNP/SW EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (CKPS) (POS)
POWER PG Power Supply Routing
PRE/SE EC EVAP Control System Pressure Sensor
PS/SEN EC Power Steering Pressure Sensor
R/VIEW DI Rear View Camera Control System
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor
SEAT SE Power Seat
SEN/PW EC Sensor Power Supply
SHIFT AT A/T Shift Lock System
SNOWSW EC Snow Mode Switch
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
START SC Starting System
STOP/L LT Stop Lamp
STSIG AT Start Signal Circuit
T/WARN WT Low Tire Pressure Warning System
TAIL/L LT Parking, License and Tail Lamps
TPS1 EC Throttle Position Sensor (Sensor 1)
TPS2 EC Throttle Position Sensor (Sensor 2)
TPS3 EC Throttle Position Sensor
TRNSCV BL Homelink Universal Transceiver
TURN LT Turn Signal and Hazard Warning Lamp
VDC BRC Vehicle Dynamics Control System
VEHSEC BL Vehicle Security System
VENT/V EC EVAP Canister Vent Control Valve
VIAS/V EC VIAS Control Solenoid Valve
VSSA/T AT Vehicle Speed Sensor A/T (Revolution Sensor)
WARN DI Warning Lamps
WINDOW GW Power Window
WIP/R WW Rear Wiper and Washer
WIPER WW Front Wiper and Washer Code Section Wiring Diagram Name

FRONT PROPELLER SHAFT PR-5
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Removal and InstallationADS001AA
REMOVAL
1. Remove the front and rear engine undercover with a power tool.
2. Remove the front cross bar with a power tool. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
3. Remove the exhaust front tube bracket with a power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
4. Disconnect the heated oxygen sensor harness connector.
5. Remove the exhaust front tube mounting nuts with a power tool. Refer to EX-3, "
EXHAUST SYSTEM" .
6. Remove the right bank three way catalyst with a power tool. Refer to EM-26, "
Removal and Installation"
(VQ35DE), EM-182, "Removal and Installation" (VK45DE).
7. Remove the power steering piping mounting bolts. Refer to PS-
41, "HYDRAULIC LINE" .
8. Remove the power steering gear box fixing bolts to secure work- ing area for removal of propeller shaft. Refer to PS-19, "
POWER
STEERING GEAR AND LINKAGE" .
CAUTION:
Be careful not to damage the steering gear box piping dur-
ing removal.
9. Put matching marks onto propeller shaft flange yoke and final drive companion flange.
CAUTION:
For matching mark, use paint. Do not damage propeller
shaft flange and companion flange.
10. Remove the propeller shaft fixing bolts.
11. Set the transmission jack at the transfer, remove rear engine mounting bolts, and then lower transmission jack about 40-50
mm (0.16 - 0.21 in).
12. Remove propeller shaft from the front final drive and transfer.
INSPECTION

Inspect propeller shaft runout at measuring point. If runout
exceeds specifications, replace propeller shaft assembly.
SDIA1516E
SDIA1517E
SDIA1518E
Propeller shaft runout limit : 0.6 mm (0.024 in) or less
SPD106

PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
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SECTION PS
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POWER STEERING SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect ..................................... ..... 3
OPERATION PROCEDURE ............................ ..... 3
Precautions for Steering System ......................... ..... 3
PREPARATION ...................................................... ..... 5
Special Service Tools (SST) ................................ ..... 5
Commercial Service Tools ................................... ..... 6
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 7
NVH Troubleshooting Chart ................................ ..... 7
POWER STEERING FLUID ................................... ..... 8
Checking Fluid Level ........................................... ..... 8
Checking Fluid Leakage ...................................... ..... 8
Air Bleeding Hydraulic System ............................ ..... 8
STEERING WHEEL ............................................... ... 10
On-Vehicle Inspection and Service ..................... ... 10
CHECKING CONDITION OF INSTALLATION . ... 10
CHECKING STEERING WHEEL PLAY ........... ... 10
CHECKING NEUTRAL POSITION ON STEER-
ING WHEEL ..................................................... ... 10
CHECKING STEERING WHEEL TURNING
FORCE ............................................................. ... 10
CHECKING FRONT WHEEL TURNING ANGLE .... 11
Removal and Installation ..................................... .... 11
STEERING COLUMN ............................................ ... 12
Removal and Installation ..................................... ... 12
REMOVAL ........................................................ ... 12
INSPECTION AFTER REMOVAL .................... ... 14
INSTALLATION ................................................ ... 14
INSPECTION AFTER INSTALLATION ............ ... 14
Components (Without Automatic Drive Positioner) ... 15
Disassembly and Assembly ................................ ... 15
DISASSEMBLY ................................................ ... 15
ASSEMBLY ...................................................... ... 16 Components (With Automatic Drive Positioner) ..
... 17
Disassembly and Assembly ................................. ... 18
DISASSEMBLY ................................................ ... 18
ASSEMBLY ...................................................... ... 18
POWER STEERING GEAR AND LINKAGE ......... ... 19
Removal and Installation ..................................... ... 19
REMOVAL ........................................................ ... 19
INSTALLATION ................................................ ... 20
INSPECTION AFTER INSTALLATION ............. ... 21
Disassembly and Assembly ................................. ... 22
DISASSEMBLY ................................................ ... 23
INSPECTION AFTER DISASSEMBLY ............. ... 25
ASSEMBLY ...................................................... ... 26
POWER STEERING OIL PUMP ............................ ... 31
On-Vehicle Inspection and Service ...................... ... 31
CHECKING RELIEF OIL PRESSURE (VQ35DE
MODELS) ......................................................... ... 31
CHECKING RELIEF OIL PRESSURE (VK45DE
MODELS) ......................................................... ... 31
Removal and Installation (VQ35DE Models) ....... ... 32
REMOVAL ........................................................ ... 32
INSTALLATION ................................................ ... 33
Removal and Installation (VK45DE Models) ....... ... 33
REMOVAL ........................................................ ... 33
INSTALLATION ................................................ ... 33
Disassembly and Assembly (VQ35DE Models) .. ... 33
INSPECTION BEFORE DISASSEMBLY .......... ... 33
DISASSEMBLY ................................................ ... 34
INSPECTION AFTER DISASSEMBLY ............. ... 34
ASSEMBLY ...................................................... ... 34
Disassembly and Assembly (VK45DE Models) ... ... 37
INSPECTION BEFORE DISASSEMBLY .......... ... 37
DISASSEMBLY ................................................ ... 37
INSPECTION AFTER DISASSEMBLY ............. ... 38
ASSEMBLY ...................................................... ... 38
HYDRAULIC LINE ................................................. ... 41
Components ........................................................ ... 41
Removal and Installation ..................................... ... 43
Component .......................................................... ... 44
Removal and Installation ..................................... ... 45

PRECAUTIONS PS-3
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AGS000GO
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 DisconnectAGS000L5
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-II 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-II.
Precautions for Steering SystemAGS000GP

Before disassembly, thoroughly clean the outside of the unit.

Disassembly should be done in a clean work area. It is important to prevent the internal parts from becom-
ing contaminated by dirt or other foreign matter.

For easier and proper assembly, place disassembled parts in order on a parts rack.

PS-6
PREPARATION
Revision: 2005 July 2005 FX
Commercial Service ToolsAGS000GR
1. KV48102500-04
( — )
Washer
2. KV48102500-01
( — )
Eye joint
3. KV48102500-03
( — )
Bolt
4. KV48102500-02
( — )
Flare Joint
5. KV48103500
(J26357&J26357-10)
Pressure gauge & shut off valve Measuring oil pump relief pressure
(VQ35DE models)
1. KV48105300-4 and 5295262U10
( — )
Connector A and O-ring
2. KV48105300-3 and 5295262U00
( — )
Eye-bolt and O-ring
3. KV48103500
(J26357 and J26357-10)
Pressure gauge and shut-off valve
4. KV48105300-1 and 5295262U00
( — )
Connector B and O-ring
5. KV48105300-2
( — )
Nut Measuring oil pump relief pressure
(VK45DE models)
Tool number
(Kent-Moore No.)
Tool name Description
SGIA0442E
SGIA0427E
Tool name Description
Power tool

Removing wheel nuts

Removing undercover

Removing steering gear
PBIC0190E

PS-8
POWER STEERING FLUID
Revision: 2005 July 2005 FX
POWER STEERING FLUIDPFP:KLF20
Checking Fluid LevelAGS000GT

Stop engine before performing a fluid level check.

Ensure that fluid level is between the MAX range and MIN level.

Because fluid level differs within the HOT range and the COLD
range, check it carefully.
CAUTION:

Do not overfill the Max level.

Do not reuse any used power steering fluid.

Recommended fluid is Genuine NISSAN PSF or equivalent.
Checking Fluid LeakageAGS000GU
Check the hydraulic piping lines for improper attachment and for
leaks, cracks, damage, loose connections, chafing or deterioration.
1. Run engine until fluid temperature reaches 50 to 80 ° C (122 to
176 °F) in reservoir tank. Keep engine speed idle.
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each “lock” position for five seconds to check fluid leakage.
CAUTION:
Do not hold steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over tighten con- nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer to PS-31, "
POWER STEERING OIL
PUMP" .
6. Check steering gear boots for accumulation of fluid indicating a from steering gear.
Air Bleeding Hydraulic SystemAGS000GV
Incomplete air bleeding causes the following. When this happens, bleed air again.

Generation of air bubbles in reservoir tank.

Generation of clicking noise in oil pump.

Excessive buzzing in oil pump.
NOTE:
When vehicle is stationary or while steering wheel is being turned slowly, some noise may be heard from
oil pump or gear. This noise is normal and does not affect any system.
1. Stop engine, and then turn steering wheel fully to right and left several times. CAUTION:
Do not allow steering fluid reservoir tank to go below the low-level line. Check tank frequently and
add fluid as needed.
2. Run engine at idle speed. Turn steering wheel fully to the right and then fully to the left, and keep for about three seconds. Then check whether a fluid leakage has occurred.
3. Repeat the 2nd procedure several times at about three seconds intervals. CAUTION:
Do not hold steering wheel in the locked position more than 10 seconds. (There is the possibility
that oil pump may be damaged.)
4. Check generation of air bubbles and cloud in fluid. HOT : Fluid temperatures from 50 to 80
°C (122 to
176 °F)
COLD : Fluid temperatures from 0 to 30 °C (32 to 86 °F)
SGIA0232J
SGIA0506E

POWER STEERING FLUID PS-9
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5. If air bubbles and the cloud don't fade, stop engine, hold air bleeding until air bubbles and the cloud fade.
Perform the 2nd and the 3rd procedures again.
6. Stop engine, check fluid level.