torque INFINITI FX35 2005 Service Manual

REAR SUSPENSION MEMBER RSU-17
C
D
F
G H
I
J
K L
M A
B
RSU
Revision: 2005 July 2005 FX
REAR SUSPENSION MEMBERPFP:55501
Removal and InstallationAES000MU
REMOVAL
1. Remove tire with power tool.
2. Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to BR-
26, "REAR DISC BRAKE" .
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
3. Remove wheel sensor from rear final drive, then remove wheel sensor harness from rear suspension member. Refer to BRC-57, "
WHEEL SENSORS" .
4. Remove height sensor harness from rear suspension member (if equipped).
5. Remove center muffler and main muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
6. Remove stabilizer bar. Refer to RSU-16, "
Removal and Installation" .
7. Remove rear drive shaft. Refer to RAX-9, "
REAR DRIVE SHAFT" .
8. Remove rear final drive. Refer to RFD-14, "
Removal and Installation" .
9. Separate attachments between parking brake cable and vehicle and rear suspension member. Refer to PB-3, "
PARKING BRAKE CONTROL" .
10. Remove rear lower link and coil spring. Refer to RSU-15, "
Removal and Installation" .
11. Remove fixing bolt in lower side of shock absorber with power tool.
12. Set jack under rear suspension member.
13. Remove fixing bolts and nuts of tunnel stay and member stay with power tool, then remove those parts from vehicle.
14. Remove fixing bolts and nuts of rear pin stay with power tool and then remove rear pin stay from vehicle.
15. Slowly lowering jack, then remove rear suspension member, suspension arm, radius rod, front lower link and axle from vehicle as a unit.
16. Remove fixing bolts and nuts with power tool, then remove suspension arm, front lower link, and radius rod from rear suspension member.
INSPECTION AFTER REMOVAL
Check rear suspension member for deformation, cracks, and other damage and replace if necessary.
INSTALLATION

Refer to RSU-7, "Components" , for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

Perform final tightening of installation position of links (rubber bushing) under unladen conditions with tires
on level ground. Check wheel alignment. Refer to RSU-5, "
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" .

RSU-18
SERVICE DATA
Revision: 2005 July 2005 FX
SERVICE DATAPFP:00030
Wheel AlignmentAES000MV
Ball JointAES000MW
Wheelarch Height (Unladen*)AES000MX
*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats are in designated positions. Camber
Degree minute (Decimal degree) Minimum – 1
° 18 ′ (– 1.30 °)
Nominal – 0 ° 48 ′ (– 0.80 °)
Maximum – 0 ° 18 ′ (– 0.30 °)
Total toe-in Distance (A – B)
Minimum 2.4 mm (0.094 in)
Nominal 4.7 mm (0.185 in)
Maximum 7.0 mm (0.276 in)
Angle (left plus right)
Degree minute (Degree) Minimum 0
°05 ′ (0.08 °)
Nominal 0 °10 ′ (0.17 °)
Maximum 0 °15 ′ (0.25 °)
Axial end play 0 mm (0 in)
Swing torque 0.5 − 3.4 N·m (0.06 − 0.34 kg-m, 5 − 30 in-lb)
Measurement on spring balance (cotter pinhole position) 9.7 − 66.0 N (0.99 − 6.7 kg, 2.18 − 14.8 lb)
Rotating torque 0.5 − 3.4 N·m (0.06 − 0.34 kg-m, 5 − 30 in-lb)
Destination USA Canada
Engine VQ35DE VK45DE VQ35DE VK45DE
Axle 2WD AWD AWD
Tire size 265/60R18 265/50R20 265/60R18 265/50R20 265/60R18 265/50R20
Front (Hf) 835 mm
(32.87 in) 834 mm
(32.83 in) 834 mm
(32.83 in) 833 mm
(32.80 in) 832 mm
(32.76 in) 834 mm
(32.83 in) 833 mm
(32.80 in) 832 mm
(32.76 in)
Rear (Hr) 822 mm
(32.36 in) 821 mm
(32.32 in) 829 mm
(32.64 in) 827 mm
(32.56 in) 825 mm
(32.48 in) 827 mm
(32.56 in) 826 mm
(32.52 in) 823 mm
(32.40 in)
SFA818A

SRS-40
SIDE CURTAIN AIR BAG MODULE
Revision: 2005 July 2005 FX
SIDE CURTAIN AIR BAG MODULEPFP:985P0
Removal and InstallationAHS000I0
REMOVAL
CAUTION:

Before servicing SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3
minutes.

Always work from the side of the side curtain air bag module.
1. Remove headlining. Refer to EI-41, "
Removal and Installation" .
2. Disconnect side curtain air bag connector.
3. Remove side curtain air bag module fixing bolts, and remove the side curtain air bag module.
CAUTION:

Always place the side curtain air bag module with the warn-
ing label facing upward.

Do not disassemble side curtain air bag module.

Do not insert any foreign objects (screwdriver, etc.) into air
bag module connector.

Replace side curtain air bag module if it has been dropped
or sustained an impact.

Do not expose the air bag module to temperatures exceed-
ing 90 °C (194 °F).

Do not allow oil, grease or water to come in contact with the
side curtain air bag module.
1. Side curtain air bag Inflator 2. Side curtain air bag 3. Bolt
4. Assist grip bracket 5. Bolt (There is no torque control)
PHIA0656E
PHIA0317E
SBF814E

TF-4
PRECAUTIONS
Revision: 2005 July 2005 FX
Service Notice or PrecautionsADS000RJ

Do not reuse transfer fluid, once it has been drained.

Check the fluid level or replace the fluid only with the vehicle parked on level ground.

During removal or installation, keep inside of transfer clear of dust or dirt.

Replace all tires at the same time. Always use tires of the proper size and the same brand and pattern.
Fitting improper size and unusual wear tires applies excessive force to vehicle mechanism and can cause
longitudinal vibration.

Disassembly should be done in a clean work area, it is preferable to work in dustproof area.

Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the internal
parts from becoming contaminated by dirt or other foreign matter.

All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.

Check for the correct installation status prior to removal or disassembly. If matching marks are required,
be certain they do not interfere with the function of the parts when applied.

Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with a new ones if necessary.

Gaskets, seals and O-rings should be replaced any time when the transfer is disassembled.

In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, use it.

Observe the specified torque when assembling.

Clean and flush the parts sufficiently and blow-dry them.

Be careful not to damage sliding surfaces and mating surfaces.

Clean innerparts with lint-free cloth or towels. Do not use cotton work gloves and rags to prevent adhering
fibers.

TRANSFER FLUID TF-9
C E F
G H
I
J
K L
M A
B
TF
Revision: 2005 July 2005 FX
TRANSFER FLUIDPFP:31001
ReplacementADS000RN
DRAINING
1. Run the vehicle to warm up the transfer unit sufficiently.
2. Stop the engine, and remove the drain plug to drain the transfer fluid.
3. Apply sealant to drain plug. Install drain plug on transfer and tighten to the specified torque. Refer to TF-45, "
COMPO-
NENTS" .

Use Genuine Silicone RTV or equivalent. Refer to GI-48,
"Recommended Chemical Products and Sealants" .
FILLING
1. Remove filler plug and add transfer fluid until fluid level reaches
the specified limit near filler plug mounting hole.
CAUTION:
Carefully fill the fluid. (Fill up for approx. 3 minutes.)
2. Leave the vehicle for 3 minutes, and check the fluid level again.
3. Set a new gasket onto filler plug and install it on transfer and tighten to the specified torque. Refer to TF-45, "
COMPO-
NENTS" .
CAUTION:
Do not reuse gasket.
InspectionADS000RO
FLUID LEAKAGE AND FLUID LEVEL
1. Check fluid level from filler plug mounting hole as shown in the figure.
2. Before installing filler plug, set a new gasket. Install filler plug on transfer and tighten to the specified torque. Refer to TF-45,
"COMPONENTS" .
CAUTION:
Do not reuse gasket.
SDIA2087E
Fluid capacity
: Approx. 1.25 (2-5/8 US pt, 2-1/4 lmp pt)
SDIA2028E
SDIA2028E

TF-10
AWD SYSTEM
Revision: 2005 July 2005 FX
AWD SYSTEMPFP:41650
Power Transfer DiagramADS000RV
System DescriptionADS000RW
DESCRIPTION

Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.

Makes possible stable driving, with no wheel spin, on snowy roads or other slippery surfaces.

On roads which do not require AWD, it contributes to improved fuel economy by driving in conditions close
to rear-wheel drive.

Sensor inputs determine the vehicle's turning condition, and in response tight cornering/braking are con-
trolled by distributing optimum torque to front wheels.
NOTE:

When driving, if there is a large difference between front and rear wheel speed which continues for a long
time, fluid temperature of drive system parts becomes too high and AWD warning lamp flashes rapidly.
(When AWD warning lamp flashes, vehicle changes to rear-wheel drive conditions.) Also, optional distri-
bution of torque sometimes becomes rigid before lamp flashes rapidly, but it is not malfunction.

If AWD warning lamp is flashing rapidly, stop vehicle and allow it to idle for some time. Flashing will stop
and AWD system will be restored.

When driving, AWD warning lamp may flash slowly if there is a significant difference in diameter of the
tires. At this time, vehicle performance is not fully available and cautious driving is required. (Continues
until engine is turned OFF.)

If the warning lamp flashes slowly during driving but remains OFF after engine is restarted, the system is
normal. If it again flashes slowly after driving for some time, vehicle must be inspected.

When the difference of revolution speed between the front and rear wheel mode the shift occasionally
changes to direct 4-wheel driving conditions automatically. This is not malfunction.
SDIA1611E

AWD SYSTEM TF-11
C E F
G H
I
J
K L
M A
B
TF
Revision: 2005 July 2005 FX
ELECTRIC CONTROLLED COUPLING
Operation Principle
1. AWD control unit supplies command current to electric controlled coupling (AWD solenoid).
2. Control clutch is engaged by electromagnet and torque is detected in control clutch.
3. The cam operates in response to control clutch torque and applies pressure to main clutch.
4. Main clutch transmits torque to front wheels according to pressing power.

Transmission torque to front wheels is determined according
to command current.
AWD CONTROL UNIT

Controls distribution of drive power between rear-wheel drive
(0:100) and AWD (50:50) conditions according to signals from
sensors.

Self-diagnosis can be done with CONSULT-II.
SDIA2270E
SDIA1844E
SDIA2273E

TF-12
AWD SYSTEM
Revision: 2005 July 2005 FX
AWD WARNING LAMP
Turns ON when there is a malfunction in AWD system. It indicates that fail-safe mode is engaged and vehicle
change to rear-wheel drive or shifting driving force-AWD (Front-wheels still have some driving torque).
Also turns ON when ignition switch is turned ON, for purpose of lamp check. Turns OFF approximately for 1
seconds after the engine starts if system is normal.
AWD Warning Lamp Indication
System DiagramADS000RX
Condition AWD warning lamp
Lamp check Turns ON when ignition switch is turned ON. Turns OFF
approx. 1 second after engine start.
AWD system malfunction ON
Protection function is activated due to heavy load to electric con-
trolled coupling. (AWD system is not malfunctioning and AWD system
changes to 2WD mode.) Rapid flashing: 2 times/second
(Flashing in approx. 1 minute and then turning OFF.)
Large difference in diameter of front/rear tires Slow flashing: 1 time/2 seconds
(Continuing to flash until turning ignition switch OFF)
Other than above (system normal) OFF
SDIA2160E

TF-14
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
TROUBLE DIAGNOSISPFP:00004
Fail-Safe FunctionADS000S1

If any malfunction occurs in AWD electrical system, and control unit detects the malfunction, AWD warn-
ing lamp on combination meter turns ON to indicate system malfunction.

When AWD warning lamp is ON, vehicle changes to rear-wheel drive or shifting driving force-AWD (Front-
wheels still have some driving torque).
How to Perform Trouble DiagnosisADS000S2
BASIC CONCEPT

To perform trouble diagnosis, it is the most important to have understanding about vehicle systems (con-
trol and mechanism) thoroughly.

It is also important to clarify customer complaints before inspec-
tion.
First of all, reproduce symptoms, and understand them fully.
Ask customer about his/her complaints carefully. In some cases,
it will be necessary to check symptoms by driving vehicle with
customer.
CAUTION:
Customers are not professional. It is dangerous to make an
easy guess like "maybe the customer means that...," or
"maybe the customer mentions this symptom".

It is essential to check symptoms right from the beginning in
order to repair malfunctions completely.
For intermittent malfunctions, reproduce symptoms based on
interview with customer and past examples. Do not perform
inspection on ad hoc basis. Most intermittent malfunctions are
caused by poor contacts. In this case, it will be effective to shake
suspected harness or connector by hand. When repairing with-
out any symptom diagnosis, you cannot judge if malfunctions
have actually been eliminated.

After completing diagnosis, always erase diagnostic memory.
Refer to TF-23, "
How to Erase Self-Diagnostic Results" .

For intermittent malfunctions, move harness or harness connec-
tor by hand. Then check for poor contact or reproduced open circuit.
SEF233G
SEF234G

TF-20
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
Trouble Diagnosis Chart for SymptomsADS000S3
If AWD warning lamp turns ON, perform self-diagnosis. Refer to TF-22, "SELF-DIAG RESULT MODE" .
NOTE:
Light tight-corner braking symptom may occur depending on driving conditions. This is not malfunction.
AWD Control Unit Input/Output Signal Reference ValuesADS000S4
AWD CONTROL UNIT INSPECTION TABLE
Specifications with CONSULT-II
Symptom Condition Check item Reference page
AWD warning lamp does not turn ON when
the ignition switch is turned to ON.
(AWD warning lamp check) Ignition switch: ON CAN communication line
TF-33
Unified meter and A/C amp.
Unified meter control unit
AWD warning lamp does not turn OFF sev-
eral seconds after engine started. Engine running CAN communication line
TF-33
Power supply and ground for AWD con-
trol unit
Unified meter and A/C amp.
Unified meter control unit
AWD solenoid
AWD actuator relay (integrated in AWD
control unit)
Wheel sensor
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 started. (See NOTE.)

While driving

Steering wheel is
turned fully to either
sides CAN communication line
TF-35Accelerator pedal position signal
AWD solenoid
Mechanical malfunction of electric con-
trolled coupling (clutch sticking etc.)
Vehicle does not enter AWD mode even
though AWD warning lamp turned to OFF. While driving AWD solenoid
TF-36
Mechanical malfunction of electric con-
trolled coupling (Mechanical engage-
ment of clutch is not possible.)
While driving, AWD warning lamp flashes
rapidly. (When flashing in approx. 1 minute
and then turning OFF.)
Rapid flashing: 2 times/second While driving Protection function is activated due to
heavy load to electric controlled cou-
pling. (AWD system is not malfunction-
ing. Also, optional distribution of torque
sometimes becomes rigid before lamp
flashes rapidly, but it is not malfunction.) TF-37
While driving, AWD warning lamp flashes
slowly. (When continuing to flash until turn-
ing ignition switch OFF)
Slow flashing: 1 time/2 seconds
While driving

Vehicle speed: 20 km/h
(12 MPH) or more Tire size is different between front and
rear of vehicle. TF-37
Monitored item [Unit] Content Condition Display value
FR RH SENSOR [km/h] or [mph] Wheel speed (Front wheel
right) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)
FR LH SENSOR [km/h] or [mph] Wheel speed (Front wheel
left) Vehicle stopped 0.00 km/h (0.00 mph)
Vehicle running
CAUTION:
Check air pressure of tire under
standard condition. Approximately equal to
the indication on speed-
ometer (Inside of ±10%)