2008 INFINITI FX35 battery

PS-1
STEERING
C
DE
F
H I
J
K L
M
SECTION PS
A
B
PS
N
O P
CONTENTS
POWER STEERING SYSTEM
SERVICE INFORMATION .. ..........................2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .....................................
2
Precaution for Steering System ................................2
PREPARATION ...................................................4
Special Service Tool ........................................... ......4
Commercial Service Tool ..........................................5
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
6
NVH Troubleshooting Chart ................................ ......6
POWER STEERING FLUID ................................7
Checking Fluid Level ........................................... ......7
Checking Fluid Leakage ............................................7
Air Bleeding Hydraulic System ..................................7
STEERING WHEEL .............................................9
On-Vehicle Inspection and Service ..................... ......9
Removal and Installation .........................................10
STEERING COLUMN .........................................12
Removal and Installation ..................................... ....12
Disassembly and Assembly .....................................14
POWER STEERING GEAR AND LINKAGE ....17
Removal and Installation .........................................17
Disassembly and Assembly .....................................19
POWER STEERING OIL PUMP .......................27
On-Vehicle Inspection and Service .........................27
Removal and Installation (VQ35DE Models) ...........28
Removal and Installation (VK45DE Models) ...........29
Disassembly and Assembly (VQ35DE Models) ......29
Disassembly and Assembly (VK45DE Models) .......32
HYDRAULIC LINE ............................................37
Component ..............................................................37
Removal and Installation .........................................39
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
41
Steering Wheel ........................................................41
Steering Angle .........................................................41
Steering Column ......................................................41
Steering Outer Socket and Inner Socket .................41
Steering Gear ..........................................................42
Oil Pump ..................................................................43
Steering Fluid ..........................................................43
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

PS-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612911
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000001612914
NOTE:
 This Procedure is applied only to models with In telligent 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 pow er 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.
Precaution for Steering SystemINFOID:0000000001327705
 In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle
condition, and then check wheel alignment.
 Observe the following precautions when disassembling.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

RF-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612895
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PrecautionINFOID:0000000001328027
 Disconnect both battery cables 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.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

SUNROOFRF-11
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
RF
N
O P
 to BCM terminal 49 and 52
 through body grounds M35, M45, M85 and R6.
TILT UP / SLIDE CLOSE OPERATION
When tilt up / slide close switch is pressed,
Ground is supplied
 to sunroof motor assembly terminal 1
 through sunroof switch terminal 3
 through sunroof switch terminal 2
 through body grounds M35, M45, M85 and R6.
Then, the sunroof tilt up / slide close.
TILT DOWN / SLIDE OPEN OPERATION
When tilt down / slide open switch is pressed,
Ground is supplied
 to sunroof motor assembly terminal 5
 through sunroof switch terminal 1
 through sunroof switch terminal 2
 through body grounds M35, M45, M85 and R6.
Then, the sunroof tilt down / slide open.
AUTO OPERATION
The power sunroof AUTO feature makes it possible to slide open and slide close or tilt up and tilt down the
sunroof without holding the sunroof switch in the down or up / tilt up or tilt down position.
RETAINED POWER OPERATION
When the ignition switch is turned to OFF position fr om ON position, power is supplied for 45 seconds.
 through BCM terminal 53.
 to sunroof motor assembly terminal 9.
When power is supplied, the sunroof can be operated.
The retained power operation is canceled when the driver or passenger side door is opened.
RAP signal period can be changed by CONSULT-III. Refer to RF-15, "
CONSULT-III Function (BCM)".
ANTI-PINCH FUNCTION
The CPU of sunroof motor monitors the sunroof motor operation and the sunroof position (fully-closed or
other) by the signals from sunroof motor.
When sunroof motor detects an interruption during the following slide close and tilt down operation, sunroof
switch controls the motor for open and the sunroof will operate until full up position (when tilt down operate) or
125 mm (4.92 in) or more in an open direction (when slide close operate).
 close operation and tilt down when ignition switch is in the ON position.
 close operation and tilt down during retained power operation.
MEMORY RESET PROCEDURE
1. Please observe the following instructions while confirming the sunroof operation.
NOTE:
Do not disconnect the electronic power while the sunroof is operating or within 5 seconds after the sunroof
stops. (to wipe-out the memory of lid position and operating friction.)
2. Initialization of system should be conducted after the following conditions.
 When the battery is out or connector is disconnected wh ile sunroof is operating or within 5 seconds after
sunroof stops.
 When the sunroof motor is changed.
 When an emergency handle is used.
 When the sunroof does not operate normally. (Incomplete initialization conditions)
INITIALIZATION PROCEDURE
If the sunroof does not close or open automatically, us e the following procedure to return sunroof operation to
normal.
1. Close the sunroof if it is not in the closed positi on. It may be necessary to repeatedly push the switch to
close the sunroof.
2. Press and hold the TILT UP switch. Do not release the switch, keep pressure on it. After 10 seconds of
depressing, the sunroof will tilt up, then stop. Release the button.
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

RF-14
< SERVICE INFORMATION >
SUNROOF
Terminal and Reference Value for BCM
INFOID:0000000001328038
Terminal and Reference Valu e for Sunroof Motor AssemblyINFOID:0000000001328039
Te r -
minal Wire
color ItemSignal
Input/
Output Condition
Voltage (V)
(Approx.)
Ignition
switch OPeration or condition
12 P/B Front door switch
(passenger side) signal
Input OFFOPEN (ON) 0
CLOSE (OFF) Battery voltage
38 W/L Ignition switch (ON) Input Ignition switch (ON or START) position Battery voltage
42 L/R Power source (Fuse) Input OFF — Battery voltage
49 B Ground (signal) — ON — 0
52 B Ground (power) — ON — 0
53 Y/B RAP signal Output Ignition switch ON Battery voltage
OFF Within 45 seconds after ignition switch is
turned to OFF position
Battery voltage
When driver side or passenger side door
open in power window timer is operates. 0
54 W Power window power supply Output OFF — Battery voltage
55 G Power source (Fusible link) Input OFF — Battery voltage
62 W Front door switch
(driver side) signal Input OFFOPEN (ON) 0
CLOSE (OFF) Battery voltage
Te r -
minal Wire
color Item Signal
Input/
Output Condition
Voltage (V)
(Approx.)
Ignition
switch Operation or condition
1BR Sunroof switch (Tilt up/
Slide close) signal Input ONIgnition switch ON and sunroof
switch in TILT UP/SLIDE
CLOSE position
0
Other than above Battery voltage
5LG Sunroof switch
(Tilt down/Slide open)
signal
Input ONIgnition switch ON and sunroof
switch in TILT DOWN/SLIDE
OPEN position
0
Other than above Battery voltage
7W Power window power
supply
Input OFF — Battery voltage
8 G Vehicle speed signal Input ON Speedometer operated
[When vehicle speed is approx.
40 km/h (25 MPH)]
9 SB RAP signal Input Ignition switch ON Battery voltage
OFF Within 45 seconds after ignition
switch is turned to OFF position
Battery voltage
When driver side or passenger
side door open in power window
timer is operates. 0
10 B Ground — ON — 0
ELF1080D
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

RF-16
< SERVICE INFORMATION >
SUNROOF
Check BCM Power Suppl y and Ground Circuit
INFOID:0000000001328043
1.CHECK FUSE
 Check 15A fuse [No.1, located in the fuse block (J/B)]
 Check 15A fuse [No.22, located in the fuse block (J/B)]
 Check 50A fusible link (letter M, located in the fuse and fusible link box).
NOTE:
Refer to RF-10, "
Component Parts and Harness Connector Location".
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown out, be sure to eliminate cause of malfunction before installing new fuse. Refer to RF-10, "
Component Parts and Harness Connector Location".
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between BCM connector M3, M4 terminal 38, 42, 55 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check BCM power supply circuit for open or short.
3.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between BCM connector M4 terminal 49, 52 and ground.
OK or NG
OK >> Power supply and ground circuit are OK.
NG >> Check BCM ground circuit for open or short.
Check Sunroof Motor Assembly Power Supply and Ground CircuitINFOID:0000000001328044
1.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between sunroof motor assembly connector R5 terminal 7, 9 and ground.
Retained power operation does not operate
properly. 1. Check the retained power operation mode setting.
RF-152. Check door switch.RF-19
3. Replace sunroof motor assembly.RF-22
Sunroof does not operate the interruption de-
tection function.Replace sunroof motor assembly.
RF-22
Symptom Diagnostic procedure and repair order Refer to page
38 (W/L) – Ground : Battery voltage
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6160E
49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA6161E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

SUNROOFRF-17
< SERVICE INFORMATION >
C
DE
F
G H
J
K L
M A
B
RF
N
O P
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2.CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly connector.
3. Check continuity between sunroof motor assembly connector R5 terminal 10 and ground.
OK or NG
OK >> Sunroof motor assembly power supply and ground cir- cuit are OK. Further inspection is necessary. Refer to
RF-15, "
Trouble Diagnosis Chart by Symptom".
NG >> Repair or replace harness.
3.CHECK SONROOF MOTOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM and sunroof motor assembly connector.
3. Check continuity between BCM connector M4 terminal 53, 54 and sunroof motor assembly connector R5 terminal 7, 9.
4. Check continuity between BCM connector M4 terminal 53, 54 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Turn ignition switch ON. 7 (W) – Ground : Battery voltage
9 (SB) – Ground : Battery voltage
PIIA6151E
10 (B) – Ground : Continuity should exist.
PIIA6152E
53 (Y/B) – 9 (SB) : Cont
inuity should exist.
54 (W) – 7 (W) : Cont inuity should exist.
53 (Y/B) – Ground : Continuity should not exist.
54 (W) – Ground : Continuity should not exist.
PIIA6153E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

RF-18
< SERVICE INFORMATION >
SUNROOF
3. Check voltage between BCM connector M4 terminal 53, 54 andground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace BCM.
Check Sunroof Switch SystemINFOID:0000000001328045
1.CHECK SUNROOF SWITCH INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between sunroof motor assembly connector and ground.
OK or NG
OK >> Replace sunroof motor assembly.
NG >> GO TO 2.
2.CHECK SUNROOF SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect sunroof motor assembly and sunroof switch connector.
3. Check continuity between sunroof motor assembly c onnector R5 terminal 1, 5 and sunroof switch connec-
tor R56 terminal 1, 3.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness between sunroof motor assembly and sunroof switch.
3.CHECK SUNROOF SWITCH GROUND CIRCUIT
Check continuity between sunroof switch connector R56 terminal 2 and ground. 53 (Y/B) – Ground : Battery voltage
54 (W) – Ground : Battery voltage
PIIA6154E
Connector
Terminals (Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
R5 1 (BR)
GroundSunroof switch is operated
TILT UP or SLIDE CLOSE
0
Other than above Battery voltage
5 (LG) Sunroof switch is operated
TILT DOWN or SLIDE OPEN
0
Other than above Battery voltage
PIIA6155E
1 (BR) – 3 (BR) : Continuity should exist.
5 (LG) – 1 (LG) : Continuity should exist.
PIIA6156E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C