2006 INFINITI QX56 Factory Service Manual

lane assist drain bolt spark plugs replace length octane coolant capacity

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INFINITI QX56 2006 Factory Service Manual FSU-18
KNUCKLE
Revision: November 20092006 QX56
6. Separate upper link ball joint from steering knuckle using Tool.
7. Remove pinch bolt from steering knuckle using power tool, then
separate lower lin

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INFINITI QX56 2006 Factory Service Manual SERVICE DATA AND SPECIFICATIONS (SDS)FSU-19
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Revision: November 2009 2006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsEES0025J
Spring Free Heigh

SERVICE DATA AND SPECIFICATIONS (SDS)FSU-19
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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

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INFINITI QX56 2006 Factory Service Manual 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)

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INFINITI QX56 2006 Factory Service Manual GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION
Revision: November 2009
2006 QX56
PRECAUTIONS .....................................................
..... 3

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION
Revision: November 2009
2006 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 Premium Gasoline
Required) ............................................................ ..... 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
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 ....................... ... 10
DESCRIPTION ................................................. .... 11
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ............................................ ... 12
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION .................................... ... 12
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................ ... 14
How to Read Wiring Diagrams ............................ ... 16
CONNECTOR SYMBOLS ................................ ... 16
SAMPLE/WIRING DIAGRAM - EXAMPL - ...... ... 17DESCRIPTION .................................................
... 18
Abbreviations ....................................................... ... 23
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ...................................................................... ... 25
How to Check Terminal ........................................ ... 25
CONNECTOR AND TERMINAL PIN KIT ......... ... 25
HOW TO PROBE CONNECTORS ................... ... 25
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................ ... 28
WORK FLOW ................................................... ... 28
INCIDENT SIMULATION TESTS ..................... ... 28
CIRCUIT INSPECTION .................................... ... 31
Control Units and Electrical Parts ........................ ... 36
PRECAUTIONS ............................................... ... 36
SMJ INSTALLATION ........................................ ... 37
CONSULT-II CHECKING SYSTEM ....................... ... 38
Description ........................................................... ... 38
Function and System Application ........................ ... 38
Nickel Metal Hydride Battery Replacement ......... ... 39
Checking Equipment ........................................... ... 39
CONSULT-II Start Procedure ............................... ... 39
CONSULT-II Data Link Connector (DLC) Circuit . ... 40
INSPECTION PROCEDURE ........................... ... 40
LIFTING POINT ...................................................... ... 41
Pantograph Jack .................................................. ... 41
Garage Jack and Safety Stand ............................ ... 41
2-Pole Lift ............................................................ ... 42
TOW TRUCK TOWING .......................................... ... 43
Tow Truck Towing ................................................... 43 2WD MODELS .................................................... 43
4WD MODELS .................................................... 44
Vehicle Recovery (Freeing a stuck vehicle) ......... ... 44
TIGHTENING TORQUE OF STANDARD BOLTS . ... 45
Tightening Torque Table ...................................... ... 45
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS ............................................................ ... 46
Recommended Chemical Products and Sealants ... 46
IDENTIFICATION INFORMATION ......................... ... 47
Model Variation .................................................... ... 47
Identification Number ........................................... ... 48

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INFINITI QX56 2006 Factory Service Manual GI-2Revision: November 20092006 QX56
VEHICLE IDENTIFICATION NUMBER
ARRANGEMENT ..............................................
... 48
ENGINE SERIAL NUMBER ............................. ... 49
TRANSFE

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INFINITI QX56 2006 Factory Service Manual PRECAUTIONSGI-3
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Revision: November 2009 2006 QX56
PRECAUTIONSPFP:00001
DescriptionEAS001F5
Observe the following precautions to ensure safe and proper servicing. These precau

PRECAUTIONSGI-3
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PRECAUTIONSPFP:00001
DescriptionEAS001F5
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EAS001F6
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER ”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for NVIS/IVIS (NISSAN/INFINITI VEHICLE IMMOBILIZER SYSTEM -
NATS) (If Equipped)
EAS001TH
NVIS/IVIS (NATS) will immobilize the engine if someone tries to start it without the registered key of NVIS/IVIS
(NATS).
Both of the originally supplied ignition key IDs have been NVIS/IVIS (NATS) registered.
The security indicator is located on the instrument panel. The indicator blinks when the immobilizer system is
functioning.
Therefore, NVIS/IVIS (NATS) warns outsiders that the vehicle is equipped with the anti-theft system.
When NVIS/IVIS (NATS) detects trouble, the security indicator lamp lights up while ignition switch is in
"ON" position.
This lighting up indicates that the anti-theft is not functioning, so prompt service is required.
When servicing NVIS/IVIS (NATS) (trouble diagnoses, system initialization and additional registration of
other NVIS/IVIS (NATS) ignition key IDs), CONSULT-II hardware and CONSULT-II NVIS/IVIS (NATS)
software is necessary.
Regarding the procedures of NVIS/IVIS (NATS) initialization and NVIS/IVIS (NATS) ignition key ID regis-
tration, refer to CONSULT-II operation manual, NVIS/IVIS (NATS).
Therefore, CONSULT-II NVIS/IVIS (NATS) software (program card and operation manual) must be kept
strictly confidential to maintain the integrity of the anti-theft function.
When servicing NVIS/IVIS (NATS) (trouble diagnoses, system initialization and additional registration of
other NVIS/IVIS (NATS) ignition key IDs), it may be necessary to re-register original key identification.
Therefore, be sure to receive all keys from vehicle owner. A maximum of four or five key IDs can be regis-
tered into NVIS/IVIS (NATS).
When failing to start the engine first time using the key of NVIS/IVIS (NATS), start as follows.
1. Leave the ignition key in "ON" position for approximately 5 seconds.
2. Turn ignition key to "OFF" or "LOCK" position and wait approximately 5 seconds.
3. Repeat step 1 and 2 again.
4. Restart the engine while keeping the key separate from any others on key-chain.

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INFINITI QX56 2006 Factory Service Manual GI-4
PRECAUTIONS
Revision: November 20092006 QX56
General PrecautionsEAS001F7
Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well vent

GI-4
PRECAUTIONS
Revision: November 20092006 QX56
General PrecautionsEAS001F7
Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any flammable
materials. Special care should be taken when handling any flam-
mable or poisonous materials, such as gasoline, refrigerant gas,
etc. When working in a pit or other enclosed area, be sure to
properly ventilate the area before working with hazardous mate-
rials.
Do not smoke while working on the vehicle.
Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After
jacking up the vehicle, support the vehicle weight with safety
stands at the points designated for proper lifting before working
on the vehicle.
These operations should be done on a level surface.
When removing a heavy component such as the engine or tran-
saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.
Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.
If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.
Battery posts, terminals and related accessories contain lead
and lead compounds. Wash hands after handling.
To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
Dispose of or recycle drained oil or the solvent used for cleaning
parts in an appropriate manner.
Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.
Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.
Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.
Replace inner and outer races of tapered roller bearings and needle bearings as a set.
Arrange the disassembled parts in accordance with their assembled locations and sequence.
Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.
Use only the fluids and lubricants specified in this manual.
SGI285
SGI231
SEF289H
SGI233

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INFINITI QX56 2006 Factory Service Manual PRECAUTIONSGI-5
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Use approved bonding agent, sealants or their equivalents when required.
Use hand tools, power tools (disassembly only) an

PRECAUTIONSGI-5
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Use approved bonding agent, sealants or their equivalents when required.
Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs.
When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for Three Way CatalystEAS001F8
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for Fuel (Unleaded Premium Gasoline Required)EAS001KJ
Use unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research
octane number 96).
If unleaded premium gasoline is not available, unleaded regular gasoline with an octane rating of at least 87
AKI number (Research octane number 91) can be used, but only under the following precautions:
have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium
gasoline as soon as possible.
avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance, the use of unleaded premium gasoline is recommended.
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
PBIC0190E
SGI234

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