2005 INFINITI QX4 fuel

FL-12Revision: October 2005
FUEL TANK
2005 QX56
CAUTION:

The quick connector can be disconnected when the tabs
are completely depressed. Do not twist the quick connec-
tor more than necessary.

Do not use any tools to disconnect the quick connector.

Keep the resin tube away from heat. Be especially careful
when welding near the tube.

Prevent any acid liquids such as battery electrolyte, from
getting on the resin tube.

Do not bend or twist the resin tube during connection.

Do not remove the remaining retainer on the hard tube (or
the equivalent) except when the resin tube or the retainer
is replaced.

When the resin tube or hard tube, or the equivalent, is
replaced, also replace the retainer with a new one (white
colored retainer).

To keep the quick connector clean and to avoid damage
and contamination from foreign materials, cover the
quick connector with plastic bags or suitable material as
shown.
15. Remove the four bolts and remove the fuel tank shield.
16. Remove the propeller shaft. Refer to PR-8, "
REAR PROPELLER SHAFT" .
17. Remove the three clips and remove the fuel tank protector at the
front of the fuel tank as necessary to transfer to the new fuel
tank.
18. Disconnect fuel filler hose, and vent hose at the fuel tank side.
PBIC1268E
PBIC0163E
LBIA0388E

FUEL TANK
FL-13
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Revision: October 20052005 QX56
19. Remove the fuel tank strap bolts while supporting the fuel tank
with a suitable lift jack.
20. Disconnect the EVAP hose from the molded clip in the top of the fuel tank while lowering the fuel tank.
21. Lower the fuel tank using a suitable lift jack and remove it.
22. If necessary, remove the lock ring using Tool.
23. If necessary, remove the fuel level sensor, fuel filter, and fuel
pump assembly.
CAUTION:

Do not bend the float arm during removal.

Avoid impacts such as dropping when handling the com-
ponents.
INSTALLATION
Installation is in the reverse order of removal.

Connect the quick connector as follows:
–Check the connection for any damage or foreign materials.
–Align the connector with the pipe, then insert the connector straight into the pipe until a click is heard.
–After connecting the quick connector, make sure that the con-
nection is secure by checking as follows:
–Pull the tube and the connector to make sure they are securely
connected.
–Visually inspect the connector to make sure the two retainer tabs
are securely connected.
INSPECTION AFTER INSTALLATION
1. Turn the ignition switch ON but do not start engine, then check the fuel pipe and hose connections for
leaks while applying fuel pressure.
2. Start the engine and rev it above idle, then check that there are no fuel leaks at any of the fuel pipe and
hose connections.
LBIA0387E
Tool number : — (J-46536)
LBIA0389E
PBIC1653E

FL-14Revision: October 2005
SERVICE DATA AND SPECIFICATIONS (SDS)
2005 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Standard and LimitEBS00M3U
Fuel tank capacity
105.8 (28 US gal, 23 1/4 Imp gal)

FSU-2
PRECAUTIONS
Revision: October 20052005 QX56
PRECAUTIONSPFP:00001
PrecautionsEES001GD

When installing the rubber bushings, the final tightening must be done under unladen condition and with
the tires on level ground. Oil will shorten the life of the rubber bushings, so wipe off any spilled oil immedi-
ately.

Unladen condition means the fuel tank, engine coolant and lubricants are at the full specification. The
spare tire, jack, hand tools, and mats are in their designated positions.

After installing suspension components, check the wheel alignment.

Lock nuts are not reusable. Always use new lock nuts for installation. New lock nuts are pre-oiled, do not
apply any additional lubrication.

FSU-6
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
ON-VEHICLE SERVICEPFP:00000
Front Suspension PartsEES001GI
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 FAX-5, "
WHEEL BEARING
INSPECTION" and FSU-15, "Inspection" .

Make sure that the cotter pin is inserted (4x4 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 AlignmentEES001GJ
PRELIMINARY INSPECTION
WAR NIN G:
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 FAX-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-21, "
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" .SM A52 5A
SFA392B

FSU-20
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: October 20052005 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General Specifications (Front)EES001GT
Wheel Alignment (Unladen*1 )*6EES001GU
*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) lower link bolts and washers. In order to adjust camber and caster 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
StabilizerStandard equipment
Drive type4x2 4x4
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°)13°13′ (13.22°)
Total toe-inDistance (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

SERVICE DATA AND SPECIFICATIONS (SDS)
FSU-21
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FSU
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