wheel torque INFINITI FX35 2007 User Guide

DTC P0011, P0021 IVT CONTROL EC-825
[VK45DE]
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Revision: 2006 July 2007 FX35/FX45
DTC P0011, P0021 IVT CONTROLPFP:23796
DescriptionNBS0042O
SYSTEM DESCRIPTION
*: This signal is sent to the ECM through CAN communication line
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing (IVT) control sole-
noid valve depending on driving status. This makes it possible to control the shut/open timing of the intake
valve to increase engine torque in low/mid speed range and output in high-speed range.
COMPONENT DESCRIPTION
Intake Valve Timing Control Solenoid Valve
Intake Valve Timing (IVT) control solenoid valve is activated by ON/
OFF pulse duty (ratio) signals from the ECM.
The IVT control solenoid valve changes the oil amount and direction
of flow through intake valve timing control unit or stops oil flow.
The longer pulse width advances valve angle.
The shorter pulse width retards valve angle.
When ON and OFF pulse widths become equal, the solenoid valve
stops oil pressure flow to fix the intake valve angle at the control
position.
Sensor Input signal to ECM function ECM Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed
Intake valve
timing control Intake valve timing control
solenoid valve
Intake valve timing control position sensor Intake valve timing signal
Engine coolant temperature sensor Engine coolant temperature
Wheel sensor Vehicle speed*
PBIB3276E
PBIB1842E

PRECAUTIONS EM-5
[VQ35DE]
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Revision: 2006 July 2007 FX35/FX45
[VQ35DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNBS003FN
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 Drain Engine Coolant and Engine OilNBS003FO
Drain engine coolant and engine oil when the engine is cooled.
Precautions for Disconnecting Fuel PipingNBS003FP

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disconnecting and disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyNBS003FQ

When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with a tape or equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and re-assembly.

When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used in the step.
Precautions for Inspection, Repair and ReplacementNBS003FR
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationNBS003FS

Use torque wrench to tighten bolts or nuts to specification.

EM-164
[VK45DE]
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
[VK45DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNBS006ST
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 Drain Engine Coolant and Engine OilNBS003HB
Drain engine coolant and engine oil when engine is cooled.
Precautions for Disconnecting Fuel PipingNBS003HC

Before starting work, make sure no fire or spark producing items are in the work area.

Release fuel pressure before disconnecting and disassembly.

After disconnecting pipes, plug openings to stop fuel leakage.
Precautions for Removal and DisassemblyNBS003HD

When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.

Exercise maximum care to avoid damage to mating or sliding surfaces.

Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.

Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.

When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be
used where noted in the step.
Precautions for Inspection, Repair and ReplacementNBS003HE
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationNBS003HF

Use torque wrench to tighten bolts or nuts to specification.

FRONT WHEEL HUB AND KNUCKLE FAX-5
[2WD]
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Revision: 2006 July 2007 FX35/FX45
6. Use a ball joint remover (SST) to remove steering outer socket
from steering knuckle. Be careful not to damage ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to
threads and to prevent ball joint remover (SST) from com-
ing off.
7. Remove cotter pin at transverse link, then loosen mounting nut.
8. Use a ball joint remover (SST) to remove transverse link from steering knuckle. Be careful not to damage ball joint boot.
CAUTION:
Tighten temporarily mounting nut to prevent damage to
threads and to prevent ball joint remover (SST) from com-
ing off.
9. Remove fixing bolts and nuts between strut assembly and steer- ing knuckle with power tool.
10. Remove steering knuckle from vehicle.
11. Remove fixing bolts between steering knuckle and wheel hub and bearing assembly with power tool.
12. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each parts, replace if necessary.
Ball Joint Inspection

Check for boot breakage, axial looseness, and torque of transverse link and steering outer socket ball
joint. Refer to FSU-14, "
TRANSVERSE LINK" , PS-18, "POWER STEERING GEAR AND LINKAGE" .
INSTALLATION

Refer to FAX-4, "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

After removing/installing or replacing axle components, check wheel alignment. Refer to FSU-6, "Wheel
Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .

Check the following item after service
–Installation condition of wheel sensor harness
SDIA1434E
SDIA1435E

FRONT WHEEL HUB AND KNUCKLE FAX-11
[AWD]
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Revision: 2006 July 2007 FX35/FX45
7. Use a ball joint remover (SST) to remove steering outer socket
from steering knuckle. Be careful not to damage ball joint boot.
CAUTION:
To prevent damage to threads and to prevent ball joint
remover (SST) from coming off suddenly, temporarily
tighten mounting nut.
8. Using a puller (suitable tool), remove wheel hub and bearing assembly from drive shaft. NOTE:

When removing wheel hub and bearing assembly, do not apply an excessive angle to drive shaft joint.
Also be careful not to excessively extend slide joint.

Do not hang over drive shaft with out support.
9. Remove wheel hub and bearing assembly fixing bolt.
10. Remove splash guard and wheel hub and bearing assembly from steering knuckle.
11. Remove strut assembly and steering knuckle fixing bolts and nuts.
12. Remove transverse link and steering knuckle fixing bolt and nut.
13. Remove steering knuckle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each parts, replace if necessary.
Ball Joint Inspection
Check for boot breakage, axial looseness, and torque of transverse link and steering outer socket ball joint.
Refer to FSU-14, "
TRANSVERSE LINK" , PS-18, "POWER STEERING GEAR AND LINKAGE" .
INSTALLATION
CAUTION:
Be sure to replace the new differential side oil seal every removal of drive shaft. Refer to FFD-11,
"SIDE OIL SEAL" .

Refer to FAX-10, "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

To assemble disc rotor and wheel hub and bearing assembly,
align the marks.
(When not using the alignment mark, refer to BR-20, "
Removal
and Installation of Brake Caliper Assembly" .)
SGIA0488E
SDIA1480E

FAX-14
[AWD]
FRONT DRIVE SHAFT
Revision: 2006 July 2007 FX35/FX45
CAUTION:

If the boot mounting length is outside the standard, it may cause breakage in the boot.

Be careful not to touch the inside of the boot with a tip of a flat-bladed screwdriver.
22. Secure the large and small ends of the boot with new boot bands using the boot band crimping tool [SST: KV40107300
( – )] as shown in the figure.
NOTE:
Secure boot band so that dimension “M” meets the specification
as shown.
23. Secure joint sub-assembly and shaft, and then make sure that they are in the correct position when rotating boot. Install them
with new boot band when boot installation positions become
incorrect.
24. Insert drive shaft to wheel hub and bearing assembly, and then temporarily tighten hub lock nut.
25. Install nuts and bolts to steering knuckle and strut.
26. Install break hose bracket to strut assembly. BR-11, "
Removal and Installation of Front Brake Tube and
Brake Hose" .
27. Install wheel sensor to strut assembly. Refer to BRC-57, "
WHEEL SENSORS" .
28. Tighten the hub lock nut to the specified torque.
29. Install cotter pin.
30. Install tires to vehicle. Boot installation length (L) : 136 mm (5.35 in)
RAC1133D
Dimension “M” : 2.0 – 3.0 mm (0.079 – 0.118 in)
DSF0047D

FRONT DRIVE SHAFT FAX-15
[AWD]
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Revision: 2006 July 2007 FX35/FX45
Removal and Installation (Left Side)NDS000C6
COMPONENTS
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove undercover with power tool.
3. Remove cotter pin. Then remove lock nut from drive shaft with power tool.
4. Remove wheel sensor harness from strut assembly. Refer to BRC-57, "
WHEEL SENSORS" .
CAUTION:
Do not pull on wheel sensor harness.
5. Remove brake hose lock plate. Then remove brake hose from strut assembly. Refer to BR-11, "
BRAKE
TUBE AND HOSE" .
6. Remove fixing bolts and nuts between strut assembly and steering knuckle with power tool.
7. Using a puller (suitable tool), remove drive shaft from steering knuckle.
CAUTION:
When removing drive shaft, do not apply an excessive
angle to drive shaft joint. Also be careful not to excessively
extend slide joint.
8. Remove fixing bolt of front final drive side assembly drive shaft with power tool, then remove drive shaft from vehicle.
INSPECTION AFTER REMOVAL

Move joint up/down, left /right, and in the axial direction. Check for any rough movement or significant
looseness.

Check boot for cracks or other damage, and also for grease
leakage.

If a trouble is found, disassemble drive shaft, and then replace
with new one.
INSTALLATION

Refer to FAX-15, "Removal and Installation (Left Side)" for tightening torque. Install in the reverse order of
removal.
1. Cotter pin 2. Washer 3. Drive shaft
Refer to GI-11, "
Components" , for the symbols in the figure.
PDIA1218E
SDIA0972J
SDIA1046J

FRONT DRIVE SHAFT FAX-17
[AWD]
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Revision: 2006 July 2007 FX35/FX45

Check boot for cracks or other damage, and also for grease
leakage.

If a trouble is found, disassemble drive shaft, and then replace
with new one.
INSTALLATION

Refer to FAX-16, "Removal and Installation (Right Side)" for tightening torque. Install in the reverse order
of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

Check the following item after service.
–Installation condition of wheel sensor harness.

Place the protector [SST: KV38107900 ( – )] onto front final
drive assembly to prevent damage to the oil seal while inserting
drive shaft. Slide drive shaft sliding joint and tap with a hammer
to install securely. (right side)
CAUTION:
Be sure to check that circular clip is securely fastened.
SFA108A
SDIA0593E

PREPARATION FSU-3
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FSU
Revision: 2006 July 2007 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsNES000FL
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
KV991040S0
( — )
CCK gauge attachment
1. Plate
2. Guide bolts
3. Nuts
4. Springs
5. Center plate
6. KV9910 4020 Adapter A
a: 72 mm (2.83 in) dia.
7. KV9910 4030 Adapter B
b: 65 mm (2.56 in) dia.
8. KV9910 4040 Adapter C
c: 57 mm (2.24 in) dia.
9. KV9910 4050 Adapter D
d: 53.4 mm (2.102 in) dia. Measuring wheel alignment
HT72520000
(J-25730-A)
Ball joint remover
a: 33 mm (1.30 in)
b: 50 mm (1.97 in)
r: 11.5 mm (0.453 in)

Removing steering outer socket

Removing transverse link
ST35652000
( — )
Strut attachment Disassembling and assembling strut
ST3127 S000
(See J-25765-A)
Preload gauge Measuring rotating torque of ball joint
S-NT498
NT546
ZZA0807D
ZZA0806D

FSU-10
FRONT SUSPENSION ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
16. Remove stabilizer connecting rod upper nut with power tool,
separate stabilizer connecting rod and strut assembly.
17. Remove mounting nuts between engine mounting insulator and front suspension member.
18. Remove mounting bolts which are at the back of transverse link (mounting part with body) with power tool, separate transverse
link.
19. Remove mounting nuts between front suspension member and body with power tool.
20. Move jack down slowly to remove front suspension member, transverse link, stabilizer bar, drive shaft (For AWD models) and
steering knuckle from vehicle as a unit.
21. Remove transverse link from steering knuckle. Refer to FSU-14,
"TRANSVERSE LINK" .
INSTALLATION

Refer to FSU-8, "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

After removing/installing or replacing suspension components and steering components, check wheel
alignment. Refer to FSU-6, "
Wheel Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .

Check the following item after service.
–Installation condition of wheel sensor harness.
SEIA0330E
SEIA0331E