height INFINITI QX56 2006 Factory Workshop Manual

FFD-32
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
SELECTIVE PARTS
Drive Pinion Height Adjusting Washer
Unit: mm (in)
*Always check with the Parts Department for the latest parts information.
Side Gear Thrust Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. Thickness Package part number*
1.22 (0.048)
1.24 (0.049)
1.27 (0.050)
1.30 (0.051)
1.32 (0.052) 38154 8S111
1.35 (0.053)
1.37 (0.054)
1.40 (0.055)
1.42 (0.056)
1.45 (0.057) 38154 8S112
1.47 (0.058)
1.50 (0.059)
1.52 (0.060)
1.55 (0.061)
1.57 (0.062) 38154 8S113
1.60 (0.063)
1.63 (0.064)
1.65 (0.065)
1.68 (0.066)
1.70 (0.067) 38154 8S114
1.73 (0.068)
1.75 (0.069)
1.78 (0.070)
1.80 (0.071)
1.83 (0.072) 38154 8S115
Thickness
Package part number*
0.76 (0.030)
0.79 (0.031)
0.81 (0.032)
0.84 (0.033)
0.87 (0.034) 38424 8S111
0.89 (0.035)
0.91 (0.036)
0.94 (0.037)
0.97 (0.038)
0.99 (0.039) 38424 8S112

FSU-1
FRONT SUSPENSION
E SUSPENSION
CONTENTS
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SECTION
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FSU
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions ......................................................... ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tools .......................................... ..... 3
Commercial Service Tools ................................... ..... 3
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 4
NVH Troubleshooting Chart ................................ ..... 4
FRONT SUSPENSION ASSEMBLY ...................... ..... 5
Components ........................................................ ..... 5
ON-VEHICLE SERVICE ........................................ ..... 6
Front Suspension Parts ....................................... ..... 6
Front Wheel Alignment ........................................ ..... 6
PRELIMINARY INSPECTION .......................... ..... 6
GENERAL INFORMATION AND RECOMMEN-
DATIONS ......................................................... ..... 6
THE ALIGNMENT PROCESS ......................... ..... 7
CAMBER AND CASTER .................................. ..... 7
TOE-IN ............................................................. ..... 7
FRONT WHEEL TURNING ANGLE ................ ..... 8
COIL SPRING AND SHOCK ABSORBER ............ ... 10
Removal and Installation ..................................... ... 10
REMOVAL ........................................................ ... 10
INSTALLATION ................................................ ... 10
Disassembly and Assembly ................................ ... 10
DISASSEMBLY ................................................ ... 10
INSPECTION AFTER DISASSEMBLY ............ .... 11
ASSEMBLY ...................................................... .... 11
STABILIZER BAR .................................................. ... 12
Removal and Installation ..................................... ... 12
REMOVAL ........................................................ ... 12
INSPECTION AFTER REMOVAL .................... ... 12
INSTALLATION ................................................ ... 12UPPER LINK ..........................................................
... 13
Removal and Installation ..................................... ... 13
REMOVAL ........................................................ ... 13
INSPECTION AFTER REMOVAL .................... ... 13
INSTALLATION ................................................ ... 13
LOWER LINK ......................................................... ... 14
Removal and Installation ..................................... ... 14
REMOVAL ........................................................ ... 14
INSPECTION AFTER REMOVAL .................... ... 14
INSTALLATION ................................................ ... 14
UPPER BALL JOINT AND LOWER BALL JOINT ... 15 Removal and Installation ..................................... ... 15
Inspection ............................................................ ... 15
SWINGING FORCE ......................................... ... 15
TURNING FORCE ............................................ ... 15
VERTICAL END PLAY ..................................... ... 16
KNUCKLE .............................................................. ... 17
On-Vehicle Inspection and Service ...................... ... 17
Removal and Installation ..................................... ... 17
REMOVAL ........................................................ ... 17
INSPECTION AFTER REMOVAL .................... ... 18
INSTALLATION ................................................ ... 18
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 19
General Specifications ......................................... ... 19
Spring Free Height .............................................. ... 19
Wheel Alignment (Unladen*
1 )*6 .......................... ... 19
Ball Joint .............................................................. ... 20
Wheelarch Height (Unladen*
1 ) .............................. 20

FSU-6
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
ON-VEHICLE SERVICEPFP:00000
Front Suspension PartsEES00258
Check front suspension parts for excessive play, cracks, wear and
other damage.

Shake each front wheel to check for excessive play.
If looseness is noted, inspect wheel bearing end play, then
check ball joint end play. Refer to FA X - 5 , "
WHEEL BEARING
INSPECTION" and FSU-15, "Inspection" .

Make sure that the cotter pin is inserted (4WD only).

Retighten all nuts and bolts to the specified torque.

Check shock absorber for oil leakage and other damage.

Check suspension ball joint for grease leakage and ball joint
dust cover for cracks and other damage.
Front Wheel AlignmentEES00259
PRELIMINARY INSPECTION
WARNING:
Always adjust the alignment with the vehicle on a flat surface.
NOTE:
If alignment is out of specification, inspect and replace any damaged or worn suspension parts before making
any adjustments.
1. Check and adjust the wheel alignment with the vehicle under unladen conditions. “Unladen conditions”
means that the fuel, coolant, and lubricant are full; and that the spare tire, jack, hand tools and mats are in
their designated positions.
2. Check the tires for incorrect air pressure and excessive wear.
3. Check the wheels for run out and damage. Refer to WT-5, "
Inspection" .
4. Check the wheel bearing axial end play. Refer to FA X - 5 , "
WHEEL BEARING INSPECTION" .
5. Check the shock absorbers for leaks or damage.
6. Check each mounting point of the suspension components for any excessive looseness or damage.
7. Check each link, arm, and the rear suspension member for any damage.
8. Check the vehicle height. Refer to FSU-20, "
Wheelarch Height (Unladen*1 )" .

Verify the level using Consult-II memory register 1103 and set to 0 ± 10 mm (0 ± 0.39 in) as necessary.
GENERAL INFORMATION AND RECOMMENDATIONS
1. A Four-Wheel Thrust Alignment should be performed.

This type of alignment is recommended for any NISSAN vehicle.

The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel
is centered.

The alignment machine itself should be capable of accepting any NISSAN vehicle.

The alignment machine should be checked to ensure that it is level.
2. Make sure the alignment machine is properly calibrated.

Your alignment machine should be regularly calibrated in order to give correct information. Suspension component torques : Refer to
FSU-5,
"Components" . SMA525A
SFA392B

FSU-8
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
1. Bounce the front of vehicle up and down to stabilize the vehicle height (posture).
2. Push the vehicle straight ahead about 5 m (16 ft).
3. Put a mark on base line of the tread (rear side) of both front tires
at the same height as hub center as shown. These marks are
measuring points.
4. Measure the distance “A” on the rear side of the front tires as shown.
5. Push the vehicle slowly ahead to rotate the wheels 180 °
degrees (1/2 a turn).
CAUTION:
If the wheels have rotated more than 180 ° degrees (1/2
turn), start this procedure again from the beginning. Never
push the vehicle backward.
6. Measure the distance “B” on the front side of the front tires at the same marks as shown. Total toe-in is calculated as “A” – “B”.
7. Adjust the toe-in by varying the length of the steering outer socket.
a. Loosen the outer tie-rod lock nuts.
b. Adjust the toe-in by screwing the outer tie-rods in or out.
c. Tighten the outer tie-rod lock nuts to specification.
FRONT WHEEL TURNING ANGLE
NOTE:
Check front wheel turning angle after the toe-in inspection.
1. Place front wheels on turning radius gauges in straight ahead position and rear wheels on stands so that vehicle can be level.
Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.
2. Start engine and run at idle, turn steering wheel all the way right and left, measure the turning angle.

Any turning angles are not adjustable. If any of steering
angles are out of the specification, check if the following parts
are worn or damaged.
–Steering gear
–Steering column
–Front suspension components
AFA050
Total toe-in : Refer to FSU-19, "Wheel Alignment
(Unladen*1 )*6" .
SFA234AC
Standard length “L” : Refer to PS-26, "Steering Outer
Socket and Inner Socket" .
Lock nut : Refer to PS-15, "
Removal and
Installation" .SGIA0167E
Wheel turning angle
(full turn) : Refer to
FSU-19, "Wheel
Alignment (Unladen*1 )*6" .
SFA439BA

COIL SPRING AND SHOCK ABSORBERFSU-11
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FSU
Revision: November 2009 2006 QX56
INSPECTION AFTER DISASSEMBLY
Shock Absorber Assembly

Check for smooth operation through a full stroke, both compression and extension.

Check for oil leakage on welded or gland packing portions.

Check piston rod for cracks, deformation or other damage and replace if necessary.
Mounting Insulator and Rubber Parts
Check cemented rubber-to-metal portion for separation or cracks. Check rubber parts for deterioration and
replace if necessary.
Coil Spring

Check for cracks, deformation or other damage and replace if necessary.

Check the free spring height.
ASSEMBLY
1. When installing coil spring on shock absorber, the lower end (2)
and upper end (3) must be positioned as shown.

Shock absorber mounting insulator (1)

⇐: Flat tail
2. Install upper spring insulator (3) with studs located in line with lower shock mount and in lower seat step (2). The lower seat
step (2) in the shock absorber assembly (1) faces outside of
vehicle.

⇐: Front
3. Tighten the piston rod lock nut to specification. Refer to FSU-5,
"Components" .

Use a new piston rod lock nut for assembly.Front spring free height
2WD : 325.5
± 3 mm (12.8 ± 0.1 in)
4WD : 335.0 ± 3 mm (13.2 ± 0.1 in)
WEIA0154E
WEIA0155E

SERVICE DATA AND SPECIFICATIONS (SDS)FSU-19
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FSU
Revision: November 2009 2006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEES0025J
Spring Free HeightEES0025K
Wheel Alignment (Unladen*1 )*6EES0025L
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Target value 37° 31′ (37.52°)
*3: Target value 33 ° 59′ (33.98°)
*4: Target value 37 ° 44′ (37.73°)
*5: Target value 33 ° 29′ (33.48°)
*6: Some vehicles may be equipped with straight (non-adjustable) lover link bolts and washers. In order to adjust camber and ca ster on
these vehicles, first replace the lower link bolts and washers with adjustable (cam) bolts and washers. Suspension type
Independent double wishbone coil over shock
Shock absorber type Double-acting hydraulic
Stabilizer Standard equipment
2WD325.5 ± 3 mm (12.8 ± 0.1 in)
4WD 335.0 ± 3 mm (13.2 ± 0.1 in)
Drive type 2WD 4WD
Camber
Degree minute (decimal degree) Minimum -0
° 51′ (-0.85° )- 0° 33′ (-0.55 °)
Nominal -0° 6 ′ (-0.10 °)0 ° 12′ (0.20 °)
Maximum 0° 39 ′ (0.65 °)0 ° 57′ (0.95 °)
Cross camber 0° 45′ (0.75 °) or less 0 ° 45′ (0.75 °) or less
Caster
Degree minute (decimal degree) Minimum
3° 15 ′ (3.25 °)2 °45′ (2.75 °)
Nominal 4° 0 ′ (4.00 °)3 ° 30′ (3.50 °)
Maximum 4° 45 ′ (4.75 °)4 ° 15′ (4.25 °)
Cross caster 0° 45′ (0.75°) or less 0 ° 45′ (0.75 °) or less
Kingpin inclination
Degree minute (decimal degree) 13
° 32 ′ (13.53 °)1 3°13′ (13.22 °)
Total toe-in Distance (A
− B) Minimum
1.8 mm (0.07 in) 1.8 mm (0.07 in)
Nominal 2.8 mm (0.11 in) 2.8 mm (0.11 in)
Maximum 3.8 mm (0.15 in) 3.8 mm (0.15 in)
Angle (left side and right side)
Degree minute (decimal degree) Minimum
0° 3 ′ (0.05 °)0 ° 3′ (0.05 °)
Nominal 0° 5 ′ (0.08 °)0 ° 5′ (0.08 °)
Maximum 0° 7 ′ (0.12 °)0 ° 7′ (0.12 °)
Wheel turning angle
(full turn) Inside
Degree minute (decimal degree)
34
° 31′ – 38 ° 31′ *2
(34.52 ° – 38.52 °) 34°
44′ – 38 ° 44′ *4
(34.73 ° – 38.73 °)
Outside
Degree minute (decimal degree) 30
° 59′ – 34 ° 59′ *3
(30.98 ° – 34.98 °) 30°
29′ – 34 ° 29′ *5
(30.48 ° – 34.48 °)
SFA234AC

FSU-20
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
Ball JointEES0025M
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1 )EES0025N
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Verify the vehicle height. If vehicle height is not within ± 10 mm (0.39 in) of the specification, perform the control unit initialization pro-
cedure. Refer to RSU-47, "
Initialization Procedure" .
Swinging force “A”
Upper ball joint 8.1 – 103.2 N (0.8 – 10.5 kg-f, 1.8 – 23.2 lb-f) *1
Lower ball joint 11.4 – 145.5 N (1.1 – 14.8 kg-f, 2.5 – 32.7 lb-f) *2
Turning torque “B” 0.5 - 6.4 N·m (0.05 - 0.65 kg-m, 4 - 57 in-lb)
Vertical end play “C” 0 mm (0 in)
SFA858AWEIA0076E
Suspension type
Air leveling*2
Applied model2WD4WD
Front wheelarch height (Hf) 913
(35.94) 931
(36.65)
Rear wheelarch height (Hr) 912
(35.91) 932
(36.69)
LEIA0085E

GI-50
IDENTIFICATION INFORMATION
Revision: November 20092006 QX56
DimensionsEAS001G4
Unit: mm (in)
Wheels & TiresEAS001G5
Drive type2WD 4WD
Overall length 5255 (206.9) 5255 (206.9)
Overall width 2001 (78.8) 2001 (78.8)
Overall height (with roof rack) 1976.8 (77.8) 1997.7 (78.7)
Front tread width 1725 (67.9) 1725 (67.9)
Rear tread width 1725 (67.9) 1725 (67.9)
Wheelbase 3130 (123.2) 3130 (123.2)
Minimum Running Ground Clearance (at front sus-
pension) With standard
undercover
254.8 (10.03) 273.7 (10.77)
With oil pan skid
plate 250.5 (9.86) 269.5 (10.61)
Drive Type Grade
Road wheelTireSpare tire size
All LE7-Spoke 18x8J Chromium Aluminum
Alloy P265/70R18
P265/70R18

IDX-5
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IDX
ALPHABETICAL INDEX
H
H/AIM - Wiring diagram ...................................... LT-66
H/LAMP - Wiring diagram .................................... LT-9
Handling precautions for plastics ..................... BL-187
Harness connector ............................................ PG-68
Harness layout .................................................. PG-41
Hazard warning lamp ......................................... LT-80
Headlamp ............................................................. LT-5
Headlamp aiming control ................................... LT-66
Headlamp leveler - See Headlamp aiming control . LT-
66
Headlamp removal and installation .................... LT-31
Heated oxygen sensor 2 (bank 1) .... EC-253, EC-264,
EC-277
Heated oxygen sensor 2 (bank 2) .... EC-253, EC-264,
EC-277
Heated oxygen sensor 2 heater (bank 1) ........ EC-163
Heated oxygen sensor 2 heater (bank 2) ........ EC-163
Heated seat ....................................................... SE-84
Heater and cooling unit (Heater core) . ATC-153, ATC-
156
Heater unit (heater core) ............... ATC-153, ATC-156
Height (Dimensions) ........................................... GI-50
HFC134a (R134a) system identification ........... ATC-6
HFC134a (R134a) system precaution ............... ATC-5
HFC134a (R134a) system service procedure ATC-171
HFC134a (R134a) system service tools ......... ATC-14
HFC134a system service equipment precaution ATC-
11
High and low reverse clutch solenoid valve .... AT-151,
AT-153
Homelink universal transceiver ........................ BL-156
Horn ................................................................ WW-55
HORN - Wiring diagram .................................. WW-55
How to erase DTC for OBD system .................. EC-61
HSEAT - Wiring diagram ................................... SE-86
I
IATS - Wiring diagram ..................................... EC-189
ICC - Wiring diagram ....................................... ACS-20
ICC/BS - Wiring diagram ................................. EC-504
ICC/SW - Wiring diagram ................................ EC-489
ICCBOF - Wiring diagram ............................... EC-611
Identification plate .............................................. GI-48
Idle air volume learning ..................................... EC-78
Idle speed .............................................. EC-71, EC-76
Idle speed control (ISC) .................... EC-444, EC-446
Ignition coil .......................................... EM-28, EC-618
Ignition control system .................................... EC-618
Ignition key hole illumination ............................ LT-134
Ignition timing ........................................ EC-71, EC-76
IGNSYS - Wiring diagram ............................... EC-619
ILL - Wiring diagram ......................................... LT-163
Illumination ....................................................... LT-157
In vehicle sensor ........................... ATC-137, ATC-146
In-cabin Microfilter ............................................. MA-21
INJECT - Wiring diagram ................................ EC-599
Injector ............................................................. EC-598
Input clutch solenoid valve ................. AT-139, AT-141
Instrument panel .................................................. IP-10
Intake air temperature sensor ............ EC-188, EC-208
Intake door control linkage adjustment . ATC-85, ATC-
88
Intake door motor ........................... ATC-83, ATC-160
Intake manifold .................................................. EM-17
Intake sensor ................................ ATC-142, ATC-148
Integrated homelink transmitter - See Homelink univer-
sal tranceiver .................................................... BL-156
Intelligent cruise control (ICC) system ............... ACS-6
Interior ................................................................. EI-35
Interior lamp ...................................................... LT-134
Interior lamp on-off control ................................ LT-135
Internal gear (Transfer) ....................... TF-149, TF-176
IPDM (Intelligent power distribution module engine
room) ................................................................. PG-18
IVIS (Infiniti vehicle immobilizer system) .......... BL-137
IVIS (Infiniti vehicle immobilizer system) precautions ...
GI-3
J
Jacking points ..................................................... GI-41
Junction box (J/B) .............................................. PG-76
K
Key illumination ................................................ LT-135
KEYLES - Wiring diagram .................................. BL-49
Knock sensor (KS) ........................................... EC-335
KS - Wiring diagram ........................................ EC-336
L
Laser beam aiming adjustment ....................... ACS-12
Length (Dimensions) .......................................... GI-50
License lamp .................................................... LT-111
Lifting points ....................................................... GI-42
Line pressure solenoid valve ........................... AT-122
Line pressure switch (Transfer) .......... TF-154, TF-167
Line pressure test (A/T) ..................................... AT-52
Location of electrical units ................................. PG-65
Low coast brake solenoid valve .......... AT-155, AT-157
Low tire pressure warning system ...................... WT-8
Low tire pressure warning system - trouble diagnoses
WT-11
Low tire pressure warning system - Wiring diagram .....
WT-11
Lubricant (R134a) A/C ..................................... ATC-22
Lubricants .......................................................... MA-11
Lubrication circuit (engine) .................................. LU-5
Lubrication oil A/C ........................................... ATC-22
Lubrication-locks, hinges and hood latches ....... MA-31
M
MAFS - Wiring diagram ..................... EC-174
, EC-182

LT-78
FRONT FOG LAMP
Revision: November 20092006 QX56
Aiming AdjustmentEKS00B9M
The fog lamp is a semi-sealed beam type which uses a replaceable halogen bulb. Before performing aiming
adjustment, make sure of the following.

Keep all tires inflated to correct pressure.

Place vehicle on level ground.

See that vehicle is unloaded (except for full levels of coolant,
engine oil and fuel, and spare tire, jack, and tools). Have the
driver or equivalent weight placed in driver seat.
Adjust aiming in the vertical direction by turning the adjustment
screw.
NOTE:
Access adjustment screw from underneath front bumper. Turn screw
clockwise to raise pattern and counterclockwise to lower pattern.
1. Set the distance between the screen and the center of the fog lamp lens as shown.
2. Turn front fog lamps ON.
3. Adjust front fog lamps using adjusting screw so that the top edge of the high intensity zone is 200 mm (7.9 in) below the height of
the fog lamp centers as shown.

When performing adjustment, if necessary, cover the headlamps
and opposite fog lamp.
SEL350X
MEL327G
MEL328GA