battery INFINITI FX35 2007 Service Manual

PS-1
POWER STEERING SYSTEM
G STEERING
CONTENTS
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Revision: 2006 July 2007 FX35/FX45
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 ......................... ..... 4
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 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 ..................................... ... 12
REMOVAL ........................................................ ... 12
INSTALLATION ................................................ ... 12
STEERING COLUMN ............................................ ... 13
Removal and Installation ..................................... ... 13
COMPONENTS ............................................... ... 13
REMOVAL ........................................................ ... 13
INSPECTION AFTER REMOVAL .................... ... 15
INSTALLATION ................................................ ... 15 INSPECTION AFTER INSTALLATION .............
... 15
Disassembly and Assembly ................................. ... 16
COMPONENTS ................................................ ... 16
DISASSEMBLY ................................................ ... 17
ASSEMBLY ...................................................... ... 17
POWER STEERING GEAR AND LINKAGE ......... ... 18
Removal and Installation ..................................... ... 18
COMPONENTS ................................................ ... 18
REMOVAL ........................................................ ... 18
INSTALLATION ................................................ ... 20
INSPECTION AFTER INSTALLATION ............. ... 20
Disassembly and Assembly ................................. ... 21
COMPONENTS ................................................ ... 21
DISASSEMBLY ................................................ ... 22
INSPECTION AFTER DISASSEMBLY ............. ... 24
ASSEMBLY ...................................................... ... 25
POWER STEERING OIL PUMP ............................ ... 30
On-Vehicle Inspection and Service ...................... ... 30
CHECKING RELIEF OIL PRESSURE (VQ35DE
MODELS) ......................................................... ... 30
CHECKING RELIEF OIL PRESSURE (VK45DE
MODELS) ......................................................... ... 31
Removal and Installation (VQ35DE Models) ....... ... 32
REMOVAL ........................................................ ... 32
INSTALLATION ................................................ ... 32
Removal and Installation (VK45DE Models) ....... ... 32
REMOVAL ........................................................ ... 32
INSTALLATION ................................................ ... 32
Disassembly and Assembly (VQ35DE Models) .. ... 33
COMPONENTS ................................................ ... 33
INSPECTION BEFORE DISASSEMBLY .......... ... 33
DISASSEMBLY ................................................ ... 33
INSPECTION AFTER DISASSEMBLY ............. ... 34
ASSEMBLY ...................................................... ... 34
Disassembly and Assembly (VK45DE Models) ... ... 37
COMPONENTS ................................................ ... 37
INSPECTION BEFORE DISASSEMBLY .......... ... 37
DISASSEMBLY ................................................ ... 37
INSPECTION AFTER DISASSEMBLY ............. ... 38
ASSEMBLY ...................................................... ... 39

PRECAUTIONS PS-3
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Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NGS000F5
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 DisconnectNGS000F6
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.

RF-2
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NIS001SQ
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 NIS001SR

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.

RF-12
SUNROOF
Revision: 2006 July 2007 FX35/FX45
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 while 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, use the following procedure to return sunroof operation to
normal.
1. Close the sunroof if it is not in the closed position. 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.
3. Press and hold the TILT UP switch again. Do not release the switch, keep pressure on it. While depress- ing the switch, the sunroof will “Tilt down” “Slide open” “Slide close”. Release the button after the sunroof
“Tilt down” and stops.
4. Initializing procedure is complete. Confirm proper operation of the sunroof.
CAN Communication System DescriptionNIS001SZ
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitNIS001T0
Refer to LAN-49, "CAN System Specification Chart" .

RF-14
SUNROOF
Revision: 2006 July 2007 FX35/FX45
Terminals and Reference Value for BCMNIS001T2
Terminals and Reference Value for Sunroof Motor AssemblyNIS001T3
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minal Wire
color Item Signal
Input/
Output Condition
Voltage (V)
(Approx.)
Ignition
switch OPeration or condition
12 P/B Front door switch
(passenger side) signal Input OFF OPEN (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 OFF OPEN (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 ON Ignition 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 ON Ignition 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

RF-16
SUNROOF
Revision: 2006 July 2007 FX35/FX45
Trouble Diagnosis Chart by SymptomNIS001T6
Check BCM Power Supply and Ground CircuitNIS001T7
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.
Symptom Diagnostic procedure and repair order Refer to page
Sunroof does not operate. 1. Check BCM power supply and ground circuit.
RF-16
2. Check sunroof motor assembly power supply and ground circuit.RF-17
3. Check sunroof switch system. RF-18
4. Replace sunroof motor assembly.RF-27
Motor does not stop at the sunroof fully -open
or fully- closed position. 1. Check initialization procedure.
RF-12
2. Replace sunroof motor assembly.RF-27
Retained power operation does not operate
properly. 1. Check the retained power operation mode setting.
RF-152. Check door switch.RF-20
3. Replace sunroof motor assembly.RF-27
Sunroof does not operate the interruption
detection function. Replace sunroof motor assembly.
RF-27
38 (W/L) – Ground : Battery voltage
42 (L/R) – Ground : Battery voltage
55 (G) – Ground : Battery voltage
PIIA6160E

SUNROOF RF-17
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Revision: 2006 July 2007 FX35/FX45
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 Circuit NIS001T8
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between sunroof motor assembly connector R5 terminal 7, 9 and ground.
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-16, "
Trouble Diagnosis Chart by Symptom" .
NG >> Repair or replace harness. 49 (B) – Ground : Continuity should exist.
52 (B) – Ground : Continuity should exist.
PIIA6161E
7 (W) – Ground : Battery voltage
9 (SB) – Ground : Battery voltage
PIIA6151E
10 (B) – Ground : Continuity should exist.
PIIA6152E

RF-18
SUNROOF
Revision: 2006 July 2007 FX35/FX45
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.
3. Check voltage between BCM connector M4 terminal 53, 54 and ground.
OK or NG
OK >> Check condition of harness and connector.
NG >> Replace BCM.
Check Sunroof Switch System NIS001T9
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. 53 (Y/B) – 9 (SB) : Continuity should exist.
54 (W) – 7 (W) : Continuity should exist.
53 (Y/B) – Ground : Continuity should not exist.
54 (W) – Ground : Continuity should not exist.
PIIA6153E
53 (Y/B) – Ground : Battery voltage
54 (W) – Ground : Battery voltage
PIIA6154E
Connector Terminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (–)
R5 1 (BR)
Ground Sunroof 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

RF-20
SUNROOF
Revision: 2006 July 2007 FX35/FX45
Check Door Switch NIS001TA
1. CHECK DOOR SWITCH INPUT SIGNAL
With CONSULT-II
Check (“DOOR SW-DR” and “DOOR SW-AS”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
Check voltage between BCM connector M3, B14 terminals 12, 62 and ground.
OK or NG
OK >> Door switch is OK.
NG >> GO TO 2.
Monitor item Condition
DOOR SW-DR OPEN : ON
CLOSE : OFF
DOOR SW-AS OPEN : ON
CLOSE : OFF
PIIA2464E
Item Terminals (Wire color)
Condition Voltage (V)
(Approx.)
(+) (–)
Passenger side
door switch 12 (P/B)
Ground OPEN 0
CLOSE Battery voltage
Driver side door
switch 62 (W) OPEN 0
CLOSE Battery voltage
PIIA6158E

SUNROOF RF-21
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Revision: 2006 July 2007 FX35/FX45
2. CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM connector.
3. Check continuity between BCM connector M3, B14 terminal 12, 62 and door switch connector B26, B36 terminal 1.
4. Check continuity between BCM connector M3, B14 terminals 12, 62 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR SWITCH
Check continuity between door switches terminal 1 and ground part
of door switch.
OK or NG
OK >> GO TO 4.
NG >> Replace malfunction door switch.
4. CHECK BCM OUTPUT SIGNAL
1. Connect BCM connector.
2. Check voltage between BCM connector M3, B14 terminal 12, 62 and ground.
OK or NG
OK >> Further inspection is necessary. Refer to RF-16, "Trou-
ble Diagnosis Chart by Symptom" .
NG >> Replace BCM. Driver side door
62 (W) – 1 (W) : Continuity should exist.
Passenger side door
12 (P/B) – 1 (SB) : Continuity should exist.
12 (P/B) – Ground : Continuity should not exist.
62 (W) – Ground : Continuity should not exist.
PIIA6159E
Terminal Door switch Continuity
1 Ground part of
door switch Pushed (close) No
Released (open) Yes
PIIA3351E
12 (P/B) – Ground : Battery voltage
62 (W) – Ground : Battery voltage
PIIA6158E