2005 INFINITI QX4 torque

UPPER BALL JOINT AND LOWER BALL JOINT
FSU-15
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UPPER BALL JOINT AND LOWER BALL JOINTPFP:40110
Removal and InstallationEES001GP
The ball joints are part of the upper and lower links. Refer to FSU-13, "Removal and Installation" (upper link),
FSU-14, "
Removal and Installation" (lower link).
InspectionEES001GQ

Check the ball joint for excessive play. Replace the upper or lower link assembly if any of the following
exists:

Ball joint stud is worn.

Ball joint is hard to swing.

Ball joint play in axial directions or end play is excessive.
SWINGING FORCE
NOTE:
Before checking the axial forces and end play, turn the lower ball joint at least 10 revolutions so that the ball
joint is properly broken in.
1. Measure the ball joint swinging force using a suitable tool.

Measure at the cotter pin hole for upper ball joint as shown.

Measure at the groove for lower ball joint as shown.
2. Verify the ball joint swinging force is within specification.
TURNING FORCE
Check the turning torque using a suitable tool.
NOTE:
Before checking the axial forces and end play, turn the lower ball
joint at least 10 revolutions so that the ball joint is properly broken in.
WEIA0076E
Swinging force “A”
Upper ball joint : 8.1–103.2 N (0.8–10.5 kg-f,
1.8–23.2 lb-f)
Lower ball joint : 11.4–145.5 N (1.1–14.8 kg-f,
2.5–32.7 lb-f)
SFA858A
Turning torque “B” : 0.5 - 6.4 N·m (0.05 - 0.65 kg-m,
4 - 57 in-lb)
SFA858A

KNUCKLE
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Revision: October 20052005 QX56
KNUCKLEPFP:40014
On-Vehicle Inspection and ServiceEES001GR
Make sure the mounting conditions (looseness, backlash) of each component and component status (wear,
damage) are within specifications. Refer to FSU-21, "
Ball Joint" .
Removal and InstallationEES001GS
REMOVAL
1. Remove wheel and tire from vehicle using power tool.
2. Without disconnecting the hydraulic lines, remove brake caliper using power tool. Reposition it aside with
wire. Refer to BR-21, "
Removal and Installation of Brake Caliper Assembly and Disc Rotor" .
CAUTION:
It is not necessary to remove bolts on torque member and brake hose except for disassembly or
replacement of caliper assembly. In this case, hang cylinder body with a wire so that the brake
hose in not under tension.
NOTE:
Avoid depressing brake pedal while brake caliper is removed.
3. Put alignment marks on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
4. Remove ABS sensor from steering knuckle. Refer to BRC-64, "
Removal and Installation" .
CAUTION:
Do not pull on ABS sensor harness.
5. Remove cotter pin, then remove lock nut from drive shaft using power tool.
6. Remove steering outer socket cotter pin at steering knuckle, then loosen mounting nut using power tool.
1. Disc rotor 2. Wheel hub and bearing assembly 3. Wheel stud
4. Splash guard 5. Steering knuckle
WDIA0043E
WDIA0044E

KNUCKLE
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Revision: October 20052005 QX56
INSTALLATION
Installation is in the reverse order of removal.

Refer to FSU-5, "Components" for tightening torques.

When installing disc rotor on wheel hub and bearing assembly,
align the marks.
(When not using the alignment mark, refer to BR-24, "
DISC
ROTOR INSPECTION" .)

When installing wheel and tire, refer to WT-7, "Rotation" .
WDIA0044E

SERVICE DATA AND SPECIFICATIONS (SDS)
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Revision: October 20052005 QX56
Ball JointEES001GV
*1 Measure at cotter pin hole
*2 Measure at groove
Wheelarch Height (Unladen*1 )EES001GW
Unit: mm (in)
*1: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
*2: Confirm level using Consult-II, register 1103. Set rear wheel arch height to “0” if necessary.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 model 4x2 4x4
Front wheelarch height (Hf)913
(35.94)931
(36.65)
Rear wheelarch height (Hr)912
(35.91)932
(36.69)
LEIA0085E

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION GI
Revision: October 20052005 QX56 PRECAUTIONS .......................................................... 3
Description ............................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS) (If
Equipped) ................................................................. 3
General Precautions ................................................ 4
Precautions for Three Way Catalyst ......................... 5
Precautions for Fuel (Unleaded Regular Gasoline
Recommended) ........................................................ 5
Precautions for Multiport Fuel Injection System or
Engine Control System ............................................ 6
Precautions for Hoses .............................................. 6
HOSE REMOVAL AND INSTALLATION ............... 6
HOSE CLAMPING ................................................ 6
Precautions for Engine Oils ...................................... 7
HEALTH PROTECTION PRECAUTIONS ............. 7
ENVIRONMENTAL PROTECTION PRECAU-
TIONS ................................................................... 7
Precautions for Air Conditioning ............................... 7
HOW TO USE THIS MANUAL ................................... 8
Description ............................................................... 8
Terms ....................................................................... 8
Units ......................................................................... 8
Contents ................................................................... 8
Relation between Illustrations and Descriptions ...... 9
Components ............................................................. 9
SYMBOLS ........................................................... 10
How to Follow Trouble Diagnoses ...........................11
DESCRIPTION .....................................................11
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ................................................11
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION ....................................... 12
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................... 13
How to Read Wiring Diagrams ............................... 15
CONNECTOR SYMBOLS ................................... 15SAMPLE/WIRING DIAGRAM - EXAMPL - .......... 16
DESCRIPTION .................................................... 17
Abbreviations .......................................................... 22
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ......................................................................... 24
How to Check Terminal ........................................... 24
CONNECTOR AND TERMINAL PIN KIT ............ 24
HOW TO PROBE CONNECTORS ...................... 24
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................... 27
WORK FLOW ...................................................... 27
INCIDENT SIMULATION TESTS ........................ 27
CIRCUIT INSPECTION ....................................... 30
Control Units and Electrical Parts ........................... 35
PRECAUTIONS .................................................. 35
CONSULT-II CHECKING SYSTEM .......................... 37
Description .............................................................. 37
Function and System Application ........................... 37
Nickel Metal Hydride Battery Replacement ............ 38
Checking Equipment .............................................. 38
CONSULT-II Start Procedure .................................. 38
CONSULT-II Data Link Connector (DLC) Circuit .... 39
INSPECTION PROCEDURE .............................. 39
LIFTING POINT ......................................................... 40
Pantograph Jack ..................................................... 40
Garage Jack and Safety Stand ............................... 40
2-Pole Lift ............................................................... 41
TOW TRUCK TOWING ............................................. 42
Tow Truck Towing ................................................... 42
2WD MODELS .................................................... 42
4WD MODELS .................................................... 43
Vehicle Recovery (Freeing a stuck vehicle) ............ 43
TIGHTENING TORQUE OF STANDARD BOLTS .... 44
Tightening Torque Table ......................................... 44
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS ............................................................... 45
Recommended Chemical Products and Sealants ... 45
IDENTIFICATION INFORMATION ............................ 46
Model Variation ....................................................... 46
Identification Number .............................................. 47

HOW TO USE THIS MANUAL
GI-9
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Revision: October 20052005 QX56
Relation between Illustrations and DescriptionsEAS001YE
The following sample explains the ralationship between the part description in an illustration, the part name in
the text and the service procedures.
ComponentsEAS001YD

THE LARGE ILLUSTRATIONS are exploded views (see the following) and contain tightening torques,
lubrication points, section number of the PA R T S C ATA L O G (e.g. SEC. 440) and other information neces-
sary to perform repairs.
The illustrations should be used in reference to service matters only. When ordering parts, refer to the
appropriate PA R T S C ATA L O G .
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

GI-10
HOW TO USE THIS MANUAL
Revision: October 20052005 QX56
SYMBOLS
1. Union bolt 2. Copper washer 3. Brake hose
4. Cap 5. Bleed valve 6. Sliding pin bolt
7. Piston seal 8. Piston 9. Piston boot
10. Cylinder body 11. Sliding pin 12. Torque member mounting bolt
13. Washer 14. Sliding pin boot 15. Bushing
16. Torque member 17. Inner shim cover 18. Inner shim
19. Inner pad 20. Pad retainer 21. Pad wear sensor
22. Outer pad 23. Outer shim 24. Outer shim cover
1: PBC (Poly Butyl Cuprysil) grease
or silicone-based grease2: Rubber grease : Brake fluid
Refer to GI section for additional symbol definitions.
SFIA2959E
SAIA0749E

GI-44
TIGHTENING TORQUE OF STANDARD BOLTS
Revision: October 20052005 QX56
TIGHTENING TORQUE OF STANDARD BOLTSPFP:00000
Tightening Torque Table EAS001G0
*: Nominal diameter
1.Special parts are excluded.
2.This standard is applicable to bolts having the following marks embossed on the bolt head. Grade Bolt sizeBolt diam-
eter *
mmPitch
mmTightening 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
4TM6 6.0 1.0 5.1 0.52 3.8 45.1 6.1 0.62 4.5 53.8
M8 8.01.25 13 1.3 9 — 15 1.5 11 —
1.0 13 1.3 9 — 16 1.6 12 —
M10 10.01.5 25 2.5 18 — 29 3.0 22 —
1.25 25 2.6 19 — 30 3.1 22 —
M12 12.01.75 42 4.3 31 — 51 5.2 38 —
1.25 46 4.7 34 — 56 5.7 41 —
M14 14.0 1.5 74 7.5 54 — 88 9.0 65 —
7TM6 6.0 1.0 8.4 0.86 6.2 74.6 10 1.0 7 87
M8 8.01.25 21 2.1 15 — 25 2.5 18 —
1.0 22 2.2 16 — 26 2.7 20 —
M10 10.01.5 41 4.2 30 — 48 4.9 35 —
1.25 43 4.4 32 — 51 5.2 38 —
M12 12.01.75 71 7.2 52 — 84 8.6 62 —
1.25 77 7.9 57 — 92 9.4 68 —
M14 14.0 1.5 127 13.0 94 — 147 15.0 108 —
9TM6 6.0 1.0 12 1.2 9 — 15 1.5 11 —
M8 8.01.25 29 3.0 22 — 35 3.6 26 —
1.0 31 3.2 23 — 37 3.8 27 —
M10 10.01.5 59 6.0 43 — 70 7.1 51 —
1.25 62 6.3 46 — 74 7.5 54 —
M12 12.01.75 98 10.0 72 — 118 12.0 87 —
1.25 108 11.0 80 — 137 14.0 101 —
M14 14.0 1.5 177 18.0 130 — 206 21.0 152 —
MGI044A