2008 INFINITI QX56 torque

KNUCKLEFSU-21
< REMOVAL AND INSTALLATION >
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7. Remove pinch bolt from steering knuckle using power tool, then separate lower link ball joint from steering knuckle.
8. Remove steering knuckle from vehicle.
INSPECTION AFTER REMOVAL
Check for deformity, cracks and damage on each part, replace if necessary.
• Perform ball joint inspection. Refer to FSU-11, "
Inspection" .
INSTALLATION
Installation is in the reverse order of removal.
• Refer to FSU-14, "
Component" for tightening torques.
CAUTION:
Use a new cotter pin for installation of lock nut.
• When installing disc rotor on wheel hub and bearing assembly, align the marks.
NOTE:
When not using the alignment mark, refer to BR-7, "
DISC ROTOR
: Inspection" .
• When installing wheel and tire, refer to WT-48, "
Rotation" .
LEIA0097E
WDIA0044E
Revision: March 2010 2008 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)FSU-25
< SERVICE DATA AND SPECIFICATIONS (SDS)
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*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) lower 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.
Ball JointINFOID:0000000001534624
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1)INFOID:0000000004894315
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 SCS-7, "
CONSULT-III Function".
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) 920
(36.22) 937
(36.89)
Rear wheelarch height (Hr) 917
(36.10) 937
(36.89)
LEIA0085E
Revision: March 2010 2008 QX56

GI-1
GENERAL INFORMATION
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CONTENTS
GENERAL INFORMATION
HOW TO USE THIS MANU AL ......................3
HOW TO USE THIS MANUAL ....................... .....3
Description .......................................................... ......3
Terms ........................................................................3
Units ..........................................................................3
Contents ....................................................................3
Relation between Illustrations and Descriptions .......4
Components ..............................................................4
HOW TO FOLLOW TROUBLE DIAGNOSES .....6
Description ................................................................6
How to Follow Test Groups in Trouble Diagnosis ......6
Key to Symbols Signifying Measurements or Pro-
cedures ............................................................... ......
7
HOW TO READ WIRING DIAGRAMS ................9
Connector symbols ............................................. ......9
Sample/wiring diagram -example- ...........................10
Description ..............................................................11
ABBREVIATIONS .......................................... ....13
Abbreviation List .................................................. ....13
TIGHTENING TORQUE OF STANDARD
BOLTS ................................................................
14
Tightening Torque Table .........................................14
RECOMMENDED CHEMICAL PRODUCTS
AND SEALANTS ............................................ ....
15
Recommended Chemical Products and Sealants ....15
TERMINOLOGY .................................................16
SAE J1930 Terminology List ............................... ....16
FEATURES OF NEW MODEL .....................20
IDENTIFICATION INFORMATION .....................20
Model Variation ................................................... ....20
Identification Number ..............................................21
Identification Plate ...................................................22
Dimensions .............................................................23
Wheels & Tires .................................................... ....23
PRECAUTION ..............................................24
PRECAUTIONS .................................................24
Description ........................................................... ....24
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
24
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ...................................
24
Procedures without Cowl Top Cover .......................25
General Precautions ................................................25
Three Way Catalyst .................................................27
Precaution for Fuel (Unleaded Premium Gasoline
Recommended) .......................................................
27
Multiport Fuel Injection System or Engine Control
System .....................................................................
27
Hoses ......................................................................27
Engine Oils ..............................................................28
Air Conditioning .......................................................29
LIFTING POINT .................................................30
Pantograph Jack ......................................................30
Garage Jack and Safety Stand ................................30
2-Pole Lift ................................................................30
TOW TRUCK TOWING .....................................32
Tow Truck Towing ...................................................32
Vehicle Recovery (Freeing a stuck vehicle) ............33
BASIC INSPECTION ...................................34
SERVICE INFORMATION FOR ELECTRICAL
INCIDENT ..........................................................
34
Work Flow ............................................................ ....34
Control Units and Electrical Parts ............................34
How to Check Terminal ...........................................35
Intermittent Incident ............................................. ....38
Circuit Inspection .....................................................41
CONSULT-III CHECKING SYSTEM .................46
Revision: March 2010 2008 QX56

HOW TO USE THIS MANUALGI-3
< HOW TO USE THIS MANUAL >
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O PHOW TO USE THIS MANUAL
HOW TO USE THIS MANUAL
DescriptionINFOID:0000000001539181
This volume explains “Removal, Disassembly, Inst allation, Inspection and Adjustment” and “Trouble Diag-
noses”.
Te r m sINFOID:0000000001539182
• The captions WARNING and CAUTION warn you of steps that must be followed to prevent personal injury
and/or damage to some part of the vehicle.
WARNING indicates the possibility of personal injury if instructions are not followed.
CAUTION indicates the possibility of component damage if instructions are not followed.
BOLD TYPED STATEMENTS except WARNING and CAUTION give you helpful information.
Standard value: Tolerance at inspection and adjustment.
Limit value: The maximum or minimum limit val ue that should not be exceeded at inspection and adjust-
ment.
UnitsINFOID:0000000001539183
• The UNITS given in this manual are primarily expressed as the SI UNIT (International System of Unit), and
alternatively expressed in the metric system and in the yard/pound system.
Also with regard to tightening torque of bolts and nuts, there are descriptions both about range and about the
standard tightening torque.
“Example”
Range
Standard
ContentsINFOID:0000000001539184
• A QUICK REFERENCE INDEX , a black tab (e.g. ) is provided on the first page. You can quickly find the
first page of each section by matching it to the section's black tab.
• THE CONTENTS are listed on the first page of each section.
• THE TITLE is indicated on the upper portion of each page and shows the part or system.
• THE PAGE NUMBER of each section consists of two or three letters which designate the particular section
and a number (e.g. “BR-5”).
• THE SMALL ILLUSTRATIONS show the important steps such as ins pection, use of special tools, knacks of
work and hidden or tricky steps which are not shown in the previous large illustrations.
Assembly, inspection and adjustment procedures for the complicated units such as the automatic transaxle
or transmission, etc. are presented in a step-by-step format where necessary. Outer Socket Lock Nut : 59 - 78 N·m (6.0 - 8.0 kg-m, 43 - 58 ft-lb)
Drive Shaft Installation Bolt : 44.3 N·m (4.5 kg-m, 33 ft-lb)
Revision: March 2010
2008 QX56

GI-4
< HOW TO USE THIS MANUAL >
HOW TO USE THIS MANUAL
Relation between Illustrations and Descriptions
INFOID:0000000001539185
The following sample explains the relationship between t he part description in an illustration, the part name in
the text and the service procedures.
ComponentsINFOID:0000000001539186
• THE LARGE ILLUSTRATIONS are exploded views (see the following) and contain tightening torques, lubri-
cation points, section number of the PARTS CATALOG (e.g. SEC. 440) and other information necessary to
perform repairs.
The illustrations should be used in reference to service matters only. When ordering parts, refer to the appro-
priate PARTS CATALOG .
Always check with the PARTS DEPARTMENT for the latest parts information.
Components shown in an illustration may be identified by a circled number. When this style of illustration is
used, the text description of the components will follow the illustration.
SAIA0519E
Revision: March 2010 2008 QX56

HOW TO USE THIS MANUALGI-5
< HOW TO USE THIS MANUAL >
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SYMBOLS
1. Union bolt 2. Copper washer3. Brake hose
4. Cap 5. Bleed valve6. Sliding pin bolt
7. Piston seal 8. Piston9. Piston boot
10. Cylinder body 11. Sliding pin12. Torque member mounting bolt
13. Washer 14. Sliding pin boot15. Bushing
16. Torque member 17. Inner shim cover18. Inner shim
19. Inner pad 20. Pad retainer21. Pad wear sensor
22. Outer pad 23. Outer shim24. Outer shim cover
1: PBC (Poly Butyl Cuprysil) grease
or silicone-based grease 2: Rubber grease
: Brake fluid
Refer to GI section for additional symbol definitions.
SFIA2959E
SAIA0749E
Revision: March 2010 2008 QX56

GI-14
< HOW TO USE THIS MANUAL >
TIGHTENING TORQUE OF STANDARD BOLTS
TIGHTENING TORQUE OF STANDARD BOLTS
Tightening Torque TableINFOID:0000000001539194
*: Nominal diameter
1.Special parts are excluded.
2. This standard is applicable to bolts having th e following marks embossed on the bolt head.
Grade Bolt size
Bolt diam-
eter *mm Pitch
mm Tightening torque (Without lubricant)
Hexagon head bolt Hexagon flange bolt
N·m kg-m ft-lb in-lb N·m kg-m ft-lb in-lb
4T M6 6.0 1.0 5.5 0.56 4 49 7 0.71 5 62
M8 8.0
1.25 13.5 1.4 10 — 17 1.7 13 —
1.0 13.5 1.4 10 — 17 1.7 13 —
M10 10.0 1.5 28 2.9 21 — 35 3.6 26 —
1.25 28 2.9 21 — 35 3.6 26 —
M12 12.0 1.75 45 4.6 33 — 55 5.6 41 —
1.25 45 4.6 33 — 65 6.6 48 —
M14 14.0 1.5 80 8.2 59 — 100 10 74 —
7T M6 6.0 1.0 9 0.92 7 80 11 1.1 8 97
M8 8.0
1.25 22 2.2 16 — 28 2.9 21 —
1.0 22 2.2 16 — 28 2.9 21 —
M10 10.0 1.5 45 4.6 33 — 55 5.6 41 —
1.25 45 4.6 33 — 55 5.6 41 —
M12 12.0 1.75 80 8.2 59 — 100 10 74 —
1.25 80 8.2 59 — 100 10 74 —
M14 14.0 1.5 130 13 96 — 170 17 125 —
9T M6 6.0 1.0 11 1.1 8 — 13.5 1.4 10 —
M8 8.0
1.25 28 2.9 21 — 35 3.6 26 —
1.0 28 2.9 21 — 35 3.6 26 —
M10 10.0 1.5 55 5.6 41 — 80 8.2 59 —
1.25 55 5.6 41 — 80 8.2 59 —
M12 12.0 1.751001074— 1301396—
1.251001074— 1301396—
M14 14.0 1.5 170 17 125 — 210 21 155 —
MGI044A
Revision: March 2010 2008 QX56

GI-18
< HOW TO USE THIS MANUAL >
TERMINOLOGY
Nonvolatile random access memory NVRAM***
On board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2S Exhaust gas sensor
Park position switch *** Park switch
Transmission range switch *** Park/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system ***
Positive crankcase ventilation PCV Positive crankcase ventilation
Positive crankcase ventilation valve PCV valve PCV valve
Powertrain cont rol module PCM ***
Programmable read only memory PROM ***
Pulsed secondary air injection control sole-
noid valve PAIRC solenoid valve
AIV control solenoid valve
Pulsed secondary air injection system PAIR system Air induction valve (AIV) control
Pulsed secondary air injection valve PAIR valve Air induction valve
Random access memory RAM ***
Read only memory ROM ***
Scan tool ST ***
Secondary air injection pump AIR pump***
Secondary air injection system AIR system ***
Sequential multiport fuel injection system SFI system Sequential fuel injection
Service reminder indicator SRI***
Simultaneous multiport fuel injection sys-
tem ***
Simultaneous fuel injection
Smoke puff limiter system SPL system ***
Supercharger SC ***
Supercharger bypass SCB ***
System readiness test SRT ***
Thermal vacuum valve TVVThermal vacuum valve
Three way catalyst TWCCatalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OCCatalyst
Three way + oxidation catalytic converter
system TWC + OC system
***
Throttle body TB Throttle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch solenoid valve TCC solenoid valve Lock-up cancel solenoid
Lock-up solenoid
NEW TERM
NEW ACRONYM /
ABBREVIATION OLD TERM
Revision: March 2010
2008 QX56