2010 INFINITI QX56 engine oil

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
Required) .................................................................
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: April 20092010 QX56

GI-26
< PRECAUTION >
PRECAUTIONS
• 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.
• To prevent serious burns: Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
• Dispose of 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 com ponents which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
• After disconnecting vacuum or air hoses, atta ch a tag to indicate the proper connection.
• Use only the fluids and lubricants specified in this manual.
• Use approved bonding agent, sealants or their equivalents when required.
• Use hand tools, power tools (disassembly only) and recommended special tools where specified for safe and efficient service 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 covers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic tro uble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
SEF289H
SGI233
PBIC0190E
SGI234
Revision: April 20092010 QX56

GI-28
< PRECAUTION >
PRECAUTIONS
• To reinstall the rubber hose securely, make sure that hose insertionlength and orientation is correct. (If tube is equipped with hose
stopper, insert rubber hose into tube until it butts up against hose
stopper.)
HOSE CLAMPING
• If old rubber hose is re-used, install hose clamp in its original posi-tion (at the indentation where the old clamp was). If there is a trace
of tube bulging left on the old rubber hose, align rubber hose at
that position.
• Discard old clamps; replace with new ones.
• After installing plate clamps, apply force to them in the direction of the arrow, tightening rubber hose equally all around.
Engine OilsINFOID:0000000005149597
Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS
• Avoid prolonged and repeated contact with oils, particularly used engine oils.
• Wear protective clothing, including impervious gloves where practicable.
• Do not put oily rags in pockets.
• Avoid contaminating clothes, pa rticularly underpants, with oil.
• Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu- larly.
• First aid treatment should be obtained immediately for open cuts and wounds.
• Use barrier creams, applying them before each work period, to help the removal of oil from the skin.
• Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Prepara-
tions containing lanolin replace the natural skin oils which have been removed.
• Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.
• If skin disorders develop, obtain medical advice without delay.
• Where practical, degrease components prior to handling.
• Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.
ENVIRONMENTAL PROTECTION PRECAUTIONS
SMA020D
SMA021D
SMA022D
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HA-10
< PRECAUTION >
PRECAUTIONS
Precaution for Service of Compressor
INFOID:0000000005147637
• Plug all openings to prevent moisture and foreign matter from entering.
• When the compressor is removed, store it in th e same position as it is when mounted on the car.
• When replacing or repairing compressor, follow “Maintenance of Oil Quantity in Compressor”
exactly. Refer to HA-22, "
Maintenance of Oil Quantity in Compressor".
• Keep friction surfaces between clut ch and pulley clean. If the surface is contaminated with oil, wipe
it off by using a clean waste cloth moistened with thinner.
• After compressor service operation, turn the compressor shaft by ha nd more than 5 turns in both
directions. This will equally distribute oil inside the compressor. After the compressor is installed,
let the engine idle and oper ate the compressor for 1 hour.
• After replacing the compressor magnet clutch, apply voltage to the new one and check for normal
operation. Refer to HA-32, "
Removal and Installation for Compressor Clutch".
Precaution for Service EquipmentINFOID:0000000005147638
RECOVERY/RECYCLING EQUIPMENT
Follow the manufacturer's instructions for machi ne operation and machine maintenance. Never introduce any
refrigerant other than that specified into the machine.
ELECTRONIC LEAK DETECTOR
Follow the manufacturer's instructions for tester operation and tester maintenance.
VACUUM PUMP
1. Plug 2. O-ring A. Torque wrench
B. Apply oil C. Do not apply oil to threads D. NG (no good)
E. OK (okay) F. Inflated portion
WJIA1774E
Revision: April 20092010 QX56

HA-22
< ON-VEHICLE MAINTENANCE >
OIL
OIL
Maintenance of Oil Quantity in CompressorINFOID:0000000005147646
The oil in the compressor circulates through the system with the refrigerant. Add oil to compressor when
replacing any component or after a large refrigerant leakage has occurred. It is important to maintain the spec-
ified amount.
If oil quantity is not maintained properly, the following malfunctions may result:
• Lack of oil: May lead to a seized compressor
• Excessive oil: Inadequate cooling (thermal exchange interference)
OIL
Name: NISSAN A/C System Oil Type S or equivalent
CHECKING AND ADJUSTING
CAUTION:
If excessive oil leakage is noted, do not perform the oil return operation.
Start the engine and set the following conditions:
Test Condition
• Engine speed: Idling to 1,200 rpm
• A/C switch: On
• Blower fan speed: MAX position
• Temp. control: Optional [Set so that intake air temperature is 25 ° to 30 ° C (77 ° to 86 °F)]
• Intake position: Recirculation ( )
• Perform oil return operation for about ten minutes
Adjust the oil quantity according to the following table.
Oil Adjusting Procedure for Components Replacement Except Compressor
After replacing any of the following major components, add the correct amount of oil to the system.
Amount of Oil to be Added
• *1: If refrigerant leak is small, no addition of oil is needed.
Oil Adjustment Procedure for Compressor Replacement
Part replaced Oil to be added to system
Remarks
Amount of oil
m (US fl oz, Imp fl oz)
Front evaporator 75 (2.5, 2.6)—
Rear evaporator 75 (2.5, 2.6)—
Condenser 75 (2.5, 2.6)—
Liquid tank 5 (0.2, 0.2)Add if compressor is not replaced.
In case of refrigerant leak 30 (1.0, 1.1)
Large leak
— Small leak *1
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HA-24
< ON-VEHICLE MAINTENANCE >
FLUORESCENT LEAK DETECTOR
FLUORESCENT LEAK DETECTOR
Checking of Refrigerant LeaksINFOID:0000000005147647
PRELIMINARY CHECK
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C oil leak-
age, damage, and corrosion. Any A/C oil leakage may indicate an area of refrigerant leakage. Allow extra
inspection time in these areas when using either an el ectronic refrigerant leak detector (J-41995) or fluores-
cent dye leak detector (J-42220).
If any dye is observed using a fluorescent dye leak detector (J-42220), confirm the leak using a electronic
refrigerant leak detector (J-41995). It is possible that the dye is from a prior leak that was repaired and not
properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electronic refrigerant leak detector (J-41995), move the probe
along the suspected leak area at 25 - 50 mm (1 - 2 in) per second and no further than 6 mm (1/4 in) from the
component.
CAUTION:
Moving the electronic refrigerant l eak detector probe slower and closer to the suspected leak area will
improve the chances of finding a leak.
Checking System for L eaks Using the Fluorescent Dye Leak DetectorINFOID:0000000005147648
1. Check the A/C system for leaks using the fluorescent dye leak detector and safety goggles (J-42220) in a
low sunlight area (area without windows preferable). Il luminate all components, fittings and lines. The dye
will appear as a bright green/yellow area at the point of leakage. Fluorescent dye observed at the evapo-
rator drain opening indicates an evaporator core asse mbly leak (tubes, core or expansion valve).
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or cloth, then inspect the shop rag or cloth with the fl uorescent dye leak detector (J-42220) for dye residue.
3. After the leak is repaired, remove any residual dye using refrigerant dye cleaner (J-43872) to prevent
future misdiagnosis.
4. Perform a system performance check and then verify t he leak repair using a electronic refrigerant leak
detector (J-41995).
NOTE:
• Other gases in the work area or substances on the A/C components, for example, anti-freeze, wind-
shield washer fluid, solvents and oils, may falsely tri gger the leak detector. Make sure the surfaces to be
checked are clean.
• Clean with a dry cloth or blow off with shop air.
• Do not allow the sensor tip of the electronic refri gerant leak detector (J-41995) to contact with any sub-
stance. This can also cause false readings and may damage the detector.
Dye InjectionINFOID:0000000005147649
NOTE:
This procedure is only necessary when recharging the system or when the compressor has seized and must
be replaced.
1. Check the A/C system static (at rest) pressure . Pressure must be at least 345 kPa (3.52 kg/cm
2 , 50 psi).
2. Pour one bottle 7.4 cc (1/4 ounce) of the HFC-134a (R -134a) fluorescent leak detection dye (J-41447) into
the HFC-134a (R-134a) dye injector (J-41459).
CAUTION:
If repairing the A/C system or replacing a co mponent, pour the HFC-134a (R-134a) fluorescent leak
detection dye (J-41447) directly into the open system connection and proceed with the service
procedures.
3. Connect the refrigerant dye injector (J-41459) to the low-pressure service valve.
4. Start the engine and switch the A/C system ON.
5. When the A/C system is operating (compressor running), inject one bottle 7.4 cc (1/4 ounce) of HFC-134a (R-134a) fluorescent leak detection dye (J-41447) through the low-pressure service valve using HFC-
134a (R-134a) dye injector (J-41459). Refer to the manufacturer's operating instructions.
Revision: April 20092010 QX56

FLUORESCENT LEAK DETECTORHA-25
< ON-VEHICLE MAINTENANCE >
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6. With the engine still running, disconnect the HFC-134a (R -134a) dye injector (J-41459) from the low-pres-
sure service valve.
7. Operate the A/C system for a minimum of 20 minut es to mix the HFC-134a (R-134a) fluorescent leak
detection dye (J-41447) with the A/C system oil. Depending on the leak size, operating conditions and
location of the leak, it may take from minutes to days for the HFC-134a (R-134a) fluorescent leak detec-
tion dye to penetrate an A/C system leak and become visible.
Revision: April 20092010 QX56

COMPRESSORHA-31
< ON-VEHICLE REPAIR >
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COMPRESSOR
Removal and Installation for CompressorINFOID:0000000005147653
A/C Compressor Mounting
REMOVAL
1. Discharge the refrigerant. Refer to HA-20, "HFC-134a (R-134a) Service Procedure".
2. Remove the front right wheel and tire assembly. Refer to WT-49, "
Rotation".
3. Remove the engine under cover and the splash shield using power tool.
4. Remove the engine air cleaner and air ducts. Refer to EM-25, "
Removal and Installation".
5. Remove the drive belt. Refer to EM-13, "
Removal and Installation".
6. Disconnect the compressor electrical connector.
7. Disconnect the high-pressure flexible hose and low-pressure flexible hose from the compressor. CAUTION:
Cap or wrap the joint of the pipe with suitable mate rial such as vinyl tape to avoid the entry of air.
8. Remove the compressor bolts and nut using power tools.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• Replace the O-rings of the low-pressure flexibl e hose and high-pressure flexible hose with new
ones, apply compressor oil to th e O-rings when installing them.
AWIIA1291GB
Revision: April 20092010 QX56