tires INFINITI FX35 2008 Workshop Manual

RSU-12
< SERVICE INFORMATION >
SUSPENSION ARM
 If it is outside the specified range, replace suspension arm assembly.
INSTALLATION
 Refer to RSU-6, "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.
 Perform final tightening of rear suspension member installation position (rubber bushing) under unladen
conditions with tires on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel AlignmentInspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
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RADIUS RODRSU-13
< SERVICE INFORMATION >
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RADIUS ROD
Removal and InstallationINFOID:0000000001327558
REMOVAL
1. Remove tires from vehicle with power tool.
2. Set jack under rear lower link.
3. Remove fixing bolt and nut in axle side of radius rod.
4. Remove fixing bolt in rear suspension member side of radius rod with power tool, then remove radius rod
from vehicle.
INSPECTION AFTER REMOVAL
Check radius rod and bushing for any deformation, cracks, or damage. Replace if necessary.
INSTALLATION
 Refer to RSU-6, "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.
 Perform final tightening of rear suspension mem ber and axle installation position (rubber bushing) under
unladen conditions with tires on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel AlignmentIn-
spection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
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RSU-14
< SERVICE INFORMATION >
FRONT LOWER LINK
FRONT LOWER LINK
Removal and InstallationINFOID:0000000001327559
REMOVAL
1. Remove tires from vehicle with power tool.
2. Set jack under rear lower link.
3. Remove front lower link protector.
4. Remove shock absorber assembly from vehicle. Refer to RSU-9, "
Removal and Installation".
5. Remove fixing nut and bolt between front lower link and axle with power tool.
6. Remove fixing nut and bolt between front lower li nk and rear suspension member with power tool.
7. Remove front lower link from vehicle.
INSPECTION AFTER REMOVAL
Check front lower link and bushing for any deforma tion, crack, or damage. Replace if necessary.
INSTALLATION
 Refer to RSU-6, "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.
 Perform final tightening of rear suspension member and axle installation position (rubber bushing) under
unladen conditions with tires on level ground. Check wheel alignment. Refer to RSU-5, "
Wheel AlignmentIn-
spection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
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REAR LOWER LINK & COIL SPRINGRSU-15
< SERVICE INFORMATION >
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REAR LOWER LINK & COIL SPRING
Removal and InstallationINFOID:0000000001327560
REMOVAL
1. Remove tire with power tool.
2. Set jack under rear lower link.
3. Loosen fixing bolt and nut between rear lower link and suspension member, and then remove fixing bolt and nut between rear axle and rear lower link with power tool.
4. Slowly lower jack, then remove upper seat, co il spring and rubber seat from rear lower link.
5. Remove fixing bolt and nut between rear suspensi on member and rear lower link with power tool.
INSPECTION AFTER REMOVAL
 Check rear lower link, bushing and coil spring for deformation, cracks, and damage. Replace rear lower link
and coil spring if necessary.
INSTALLATION
 Refer to RSU-6, "Removal and Installation"for tightening torque. Install in the reverse order of removal.
CAUTION:
Refer to component parts location an d do not reuse non-reusable parts.
 Make sure upper seat is attached as shown in the figure.
NOTE:
Insert bracket tabs (3) and the inside protrusion on upper seat into
each other beforehand as shown in the figure.
 Match up rubber seat indentions and rear lower link grooves and
attach.
NOTE:
Make sure spring is not upside down. The top and bottom are indi-
cated by paint color.
 Perform final tightening of rear suspension mem ber and axle installation position (rubber bushing) under
unladen conditions with tires on level ground. Check wheel alignment. Refer to RSU-18, "
Wheel Alignment
(Unladen*)".
SEIA0229E
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RSU-16
< SERVICE INFORMATION >
STABILIZER BAR
STABILIZER BAR
Removal and InstallationINFOID:0000000001327561
REMOVAL
1. Remove tires from vehicle with power tool.
2. Remove center muffler from vehicle. Refer to EX-3, "
Component".
3. Remove fixing bolts and remove stabilizer connecting rod mount bracket from suspension arm with power tool.
4. Remove lower side fixing nut on stabilizer connecting rod and remove stabilizer connecting rod from stabi- lizer bar with power tool.
5. Remove fixing nuts on stabilizer clamps and remove stabilizer from vehicle with power tool.
INSPECTION AFTER REMOVAL
Check stabilizer bar, stabilizer bushings, stabilizer clamps, stabilizer connecting rod, stabilizer connecting rod
mounting bracket for any deformation, cracks or damage. Replace if necessary.
INSTALLATION
 Refer to RSU-6, "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.
 Stabilizer bar uses pillow ball type connecting rod, position ball joint with case on pillow ball head parallel to stabilizer bar.
 When the bushing and clamp are installed to stabilizer bar, position
the bushing and clamp inside of t he side slip prevention clamp.
SFA449BB
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REAR SUSPENSION MEMBERRSU-17
< SERVICE INFORMATION >
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REAR SUSPENSION MEMBER
Removal and InstallationINFOID:0000000001327562
REMOVAL
1. Remove tires from vehicle 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-
24.
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
3. Remove wheel sensor from rear final drive, t hen remove wheel sensor harness from rear suspension
member. Refer to BRC-52
.
4. Remove height sensor harness from rear suspension member (if equipped).
5. Remove center muffler and main muffler. Refer to EX-3
.
6. Remove stabilizer bar. Refer to RSU-16, "
Removal and Installation".
7. Remove rear drive shaft. Refer to RAX-10
.
8. Remove propeller shaft. Refer to PR-7
.
9. Remove rear final drive. Refer to RFD-16, "
Removal and Installation".
10. Separate attachments between parking brake cable and vehicle and rear suspension member. Refer to PB-4
.
11. Remove rear lower link and coil spring. Refer to RSU-14, "
Removal and Installation".
12. Remove fixing bolt in lower side of shock absorber with power tool.
13. Set jack under rear suspension member.
14. Remove fixing bolts and nuts of tunnel stay and member stay with power tool, then remove those parts from vehicle and rear suspension member.
15. Remove fixing bolts and nuts of rear pin stay with pow er tool and then remove rear pin stay from vehicle
and rear suspension member.
16. Slowly lowering jack, then remove rear suspension me mber, suspension arm, radius rod, front lower link
and axle from vehicle as a unit.
17. Remove fixing bolts and nuts with power tool, then re move 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-6, "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.
 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 AlignmentInspection".
 After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-8, "
Adjust-
ment of Steering Angle Sensor Neutral Position".
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PRECAUTIONSTF-5
< SERVICE INFORMATION >
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 Before replacing AWD control unit, perform AWD control unit
input/output signal inspection and make sure whether AWD
control unit functions properly or not. Refer to TF-20, "
AW D
Control Unit Input/Output Signal Reference Value".
Service Notice or PrecautionINFOID:0000000001327425
 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. Fit-
ting improper size and unusual wear tires applies excessive force to vehicle mechanism and can cause lon-
gitudinal 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 tr ansfer. 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 remo val or disassembly. If matching marks are required, be
certain they do not interfere with t he function of the parts when applied.
 Check appearance of the disassembled parts for dam age, 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 tight-
ening 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.
SDIA1848E
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AWD SYSTEMTF-11
< SERVICE INFORMATION >
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AWD SYSTEM
Power Transfer DiagramINFOID:0000000001327431
System DescriptionINFOID:0000000001327432
DESCRIPTION
 Electronic control allows optimal distribution of torque to front/rear wheels to match road conditions.
 Makes possible stable driving, with no wheel sp in, 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 conditi on, 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 becom es too high and AWD warning lamp flashes rapidly.
(When AWD warning lamp flashes, vehicle changes to r ear-wheel drive conditions.) Also, optional distribu-
tion 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 ther e is a significant difference in diameter of the tires.
At this time, vehicle performance is not fully avail able 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.
ELECTRIC CONTROLLED COUPLING
Operation Principle
SDIA1611E
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TF-12
< SERVICE INFORMATION >
AWD SYSTEM
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 accordingto 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 sen-
sors.
 Self-diagnosis can be done with CONSULT-III.
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
SDIA2270E
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Condition AWD warning lamp
Lamp check Turns ON when ignition switch is turned ON. Turns OFF ap-
prox. 1 second after engine start.
AWD system malfunction ON
Protection function is activated due to heavy load to electric controlled
coupling. (AWD system is not malfunctioning and AWD system chang-
es 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
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TF-34
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS FOR SYMPTOMS
DIAGNOSTIC PROCEDURE
1.CHECK TIRE
Check the following.
 Tire pressure
 Wear condition
 Longitudinal tire size (There is no difference between longitudinal tires.)
OK or NG
OK >> GO TO 2.
NG >> Drive at vehicle speed of 20 km/h (12 MPH) or more for 5 seconds or more after repairing or replacing damaged parts. (Initialize improper size tire information.)
2.CHECK INPUT SIGNAL OF TIRE DIAMETER
With CONSULT-III
1. Start engine.
2. Drive at 20 km/h (12 MPH) or more for approx. 200 seconds.
3. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT-III.
4. Check monitor “DIS-TIRE MONI”.
Display of
“DIS-TIRE MONI”
“0-4mm”>> INSPECTION END
Except for “0-4mm”>>GO TO 3.
3.CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e".
OK or NG
OK >> GO TO 4.
NG >> Check AWD control unit pin terminals for dam age or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4.SYMPTOM CHECK
Check again.
OK or NG
OK >> INSPECTION END
NG >> Replace AWD control unit.
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