2011 INFINITI QX56 wheel

REAR DRIVE SHAFTRAX-17
< REMOVAL AND INSTALLATION >
CEF
G H
I
J
K L
M A
B
RAX
N
O P
 Move joint up/down, left/right, and in the axial directi on. Check for any rough movement or significant loose-
ness.
 Check boot for cracks or other damage, and also for grease leak-
age.
 If a malfunction is found, disassem ble drive shaft, and then replace
with new one.
INSPECTION AFTER INSTALLATION
1. Check wheel alignment. Refer to RSU-6, "Inspection".
2. Adjust neutral position of steering angle sensor. Refer to BRC-64, "
Work Procedure".
3. Adjust levelizer adjustment of height sensor. Refer to EXL-61, "
LEVELIZER ADJUSTMENT : Special
Repair Requirement".
4. Check standard vehicle height setting of vehicle height sensor. Refer to SCS-67, "
Work Procedure".
RAA0030D
Revision: 2010 May2011 QX56

RAX-18
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Wheel Hub and Bearing AssemblyINFOID:0000000006225473
Drive ShaftINFOID:0000000006225474
Item Standard
Axial end play 0.05 mm (0.002 in) or less
ItemStandard
Wheel side Final drive side
Grease quantity 145 – 165 g (5.11 – 5.82 oz) 175 – 195 g (6.17 – 6.88 oz)
Boots installed length 134.5 mm (5.30 in) 147.9 mm (5.82 in)
Revision: 2010 May2011 QX56

RF-20
< DTC/CIRCUIT DIAGNOSIS >
VEHICLE SPEED SIGNAL CIRCUIT
VEHICLE SPEED SIGNAL CIRCUIT
Component Function CheckINFOID:0000000006141233
1.CHECK SUNROOF MOTOR FUNCTION
Check tilt up/down & slide open/close operations with sunroof switch.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Check sunroof switch. Refer to RF-21, "
DiagnosisProcedure".
2.CHECK SUNROOF MOTOR ASSEMBLY INPUT SIGNAL
1. Start engine.
2. Drive the vehicle at more than 40 km/h (25 MPH). CAUTION:
Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheel s lifted in the shop or by driving the vehicle.
If a road test is expected to be easier , it is unnecessary to lift the vehicle.
3. Check tilt up/down & slide open/clos e operations with sunroof switch.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Refer to RF-20, "
DiagnosisProcedure".
Diagnosis ProcedureINFOID:0000000006141234
SUNROOF MOTOR ASSEMBLY
1.CHECK SUNROOF MOTOR ASSEMBLY INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect combination meter harness connector and sunroof motor assembly harness connector.
3. Check continuity between combination meter harness connector and sunroof motor assembly harness connector.
4. Check continuity between sunroof mo tor assembly harness connector and ground.
Is the inspection result normal?
YES >> Check combination meter. Refer to MWI-61, "DiagnosisProcedure".
NO >> Repair or replace harness or connector.
Combination meter Sunroof motor assembly Continuity
Connector Terminal Connector Terminal
M34 30 R4 8 Exists
Sunroof motor assembly GroundContinuity
Connector Terminal
R4 8 Not existed
Revision: 2010 May2011 QX56

RSU-1
SUSPENSION
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SECTION RSU
A
B
RSU
N
O PCONTENTS
REAR SUSPENSION
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Precautions for Suspension ................................ ......2
PREPARATION ............................................3
PREPARATION .............................................. .....3
Special Service Tools .......................................... ......3
Commercial Service Tools ........................................3
SYMPTOM DIAGNOSIS ...............................4
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ .....
4
NVH Troubleshooting Chart ................................ ......4
PERIODIC MAINTENANCE ..........................5
REAR SUSPENSION ASSEMBLY ................ .....5
Inspection ............................................................ ......5
WHEEL ALIGNMENT ..........................................6
Inspection ............................................................ ......6
Adjustment ................................................................6
REMOVAL AND INSTALLATION ................8
REAR LOWER LINK & COIL SPRING .......... .....8
Exploded View .................................................... ......8
Removal and Installation ...........................................8
Inspection ..................................................................9
REAR SHOCK ABSORBER ..............................10
Exploded View .................................................... ....10
Removal and Installation ..................................... ....10
Inspection and Adjustment ......................................11
Disposal ...................................................................12
SUSPENSION ARM ..........................................13
Exploded View .........................................................13
Removal and Installation .........................................13
Inspection and Adjustment ......................................13
FRONT LOWER LINK .......................................15
Exploded View .........................................................15
Removal and Installation .........................................15
Inspection ................................................................15
REAR STABILIZER ..........................................17
Exploded View .........................................................17
Removal and Installation .........................................17
Inspection ................................................................17
UNIT REMOVAL AND INSTALLATION ......18
REAR SUSPENSION MEMBER .......................18
Exploded View ..................................................... ....18
Removal and Installation .........................................18
Inspection and Adjustment ......................................19
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
20
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
20
Wheel Alignment ................................................. ....20
Ball Joint ..................................................................20
Wheel Height ...........................................................20
Revision: 2010 May2011 QX56

RSU-2
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precautions for SuspensionINFOID:0000000006225656
• When installing rubber bushings, the final tightening must be carried out under unladen conditions with tires
on ground. Spilled oil might shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
- Unladen conditions mean that fuel, engine coolant and l ubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
 After servicing suspension parts, be sure to check wheel alignment.
 Self-lock nuts are not reusable. Always use new ones when installing. Since new self-lock nuts are pre-oiled,
tighten as they are.
Revision: 2010 May2011 QX56

RSU-4
< SYMPTOM DIAGNOSIS >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000006225659
Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
RSU-8
,
RSU-10
, RSU-13
, RSU-15
, RSU-18
RSU-11
—
—
—
RSU-8
, RSU-10
, RSU-13
, RSU-15
, RSU-18
RSU-6RSU-17
NVH in DLN section.
NVH in DLN section.
NVH in RAX and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in RAX section.
NVH in BR section.
NVH in ST section.
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Shock absorber deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
DIFFERENTIAL
REAR AXLE AND REAR SUSPENSION
TIRE
ROAD WHEEL
DRIVE SHAFT
BRAKE
STEERING
Symptom REAR SUSPENSION Noise
×××××× ××××××××
Shake ×××× × × ××××××
Vibration ××××× × ×× × ×
Shimmy ×××× × ××× ××
Judder ××× ××× ××
Poor quality ride or
handling ××××× ×× ×××
Revision: 2010 May2011 QX56

RSU-6
< PERIODIC MAINTENANCE >
WHEEL ALIGNMENT
WHEEL ALIGNMENT
InspectionINFOID:0000000006225661
DESCRIPTION
Measure wheel alignment under unladen conditions.
NOTE:
“Unladen conditions” means that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
PRELIMINARY CHECK
Check the following:
 Tires for improper air pressure and wear
 Road wheels for runout. Refer to WT-64, "
Inspection".
 Wheel bearing axial end play. Refer to RAX-5, "
Inspection".
 Ball joint axial end play of suspension arm and front lower link. Refer to RSU-20, "
Ball Joint".
 Shock absorber operation
 Each mounting point of axle and suspension for looseness and deformation
 Each of front lower link, rear lower link, rear suspension member, suspension arm and shock absorber for
cracks, deformation, and other damage
 Vehicle height (posture)
GENERAL INFORMATION AND RECOMMENDATIONS
 A four-wheel thrust alignment should be performed.
- This type of alignment is recomm ended for any NISSAN/INFINITI vehicle.
- The four-wheel “thrust” process helps ensure that t he vehicle is properly aligned and the steering wheel is
centered.
- The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
- The rack should be checked to ensure that it is level.
 Make sure the machine is properly calibrated.
- Your alignment equipment should be regularly calib rated in order to give correct information.
- Check with the manufacturer of your specific equi pment for their recommended Service/Calibration Sched-
ule.
ALIGNMENT PROCESS
IMPORTANT:
Use only the alignment specifications listed in this Service Manual.
 When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Never use these indicators.
- The alignment specifications programmed into your machine that operate these indicators may not be cor-
rect.
- This may result in an ERROR.
 Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com- pensate” the sensors (alignment targets or head units). Never use this “Rolling Compensation” method.
- Use the “Jacking Compensation Method”. After installi ng the alignment targets or head units, raise the vehi-
cle and rotate the wheels 1/2 turn both ways.
- See Instructions in the alignment machine you're using for more information on this.
AdjustmentINFOID:0000000006225662
CAMBER
Revision: 2010 May2011 QX56

WHEEL ALIGNMENTRSU-7
< PERIODIC MAINTENANCE >
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RSU
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Adjust with adjusting bolt (1) in front lower link (2).
CAUTION:
 When tightening the nut firml y and checking the torque, use a
wrench to prevent the turning of bolt.
 After adjusting camber, be sure to check toe-in.
 If camber is not still within the specification, inspect and replace
any damaged or worn suspension parts.
TOE-IN
Adjust with adjusting bolt (1) in rear lower link (2).
CAUTION:
 Be sure to adjust equally on ri ght and left side with adjusting
bolt.
 When tightening the nut firml y and checking the torque, use a
wrench to prevent the turning of bolt.
 If toe-in is not still within the specification, inspect and replace any damaged or worn suspension parts. Camber : Refer to
RSU-20, "
Wheel Alignment".
JPEIB0225ZZ
Toe-In : Refer to RSU-20, "Wheel Alignment".
JPEIB0226ZZ
Revision: 2010 May2011 QX56