service INFINITI QX56 2011 Factory Service Manual

LAN-24
< PRECAUTION >[CAN]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006238426
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
 To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precautions for Trouble DiagnosisINFOID:0000000006220528
CAUTION:
 Never apply 7.0 V or more to the measurement terminal.
 Use a tester with open terminal voltage of 7.0 V or less.
 Turn the ignition switch OFF and disconnect th e battery cable from the negative terminal when
checking the harness.
Precautions for Harness RepairINFOID:0000000006220529
 Solder the repaired area and wrap tape around the soldered area.
NOTE:
A fray of twisted lines must be within 110 mm (4.33 in).
SKIB8766E
Revision: 2010 May2011 QX56

LAN-102
< PRECAUTION >[CAN GATEWAY]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006238427
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.
WARNING:
 To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SRS AIR BAG”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s)
with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly
causing serious injury.
 When using air or electric power tools or hammers , always switch the ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Revision: 2010 May2011 QX56

LAN-110
< BASIC INSPECTION >[CAN GATEWAY]
ADDITIONAL SERVICE WHEN
REPLACING CAN GATEWAY
BASIC INSPECTION
ADDITIONAL SERVICE WHEN REPLACING CAN GATEWAY
DescriptionINFOID:0000000006220581
BEFORE REPLACEMENT
When replacing CAN gateway, save or print current v ehicle specification with CONSULT-III configuration
before replacement.
NOTE:
If “READ CONFIGURATION” can not be used, use the “WRITE CONFIGURATION - Manual selection” after
replacing CAN gateway.
AFTER REPLACEMENT
CAUTION:
 When replacing CAN gateway, you must perfo rm “WRITE CONFIGURATION” with CONSULT-III.
 Complete the procedure of “WRITE CONFIGURATION” in order.
 If you set incorrect “WRITE CONF IGURATION”, incidents might occur.
 Configuration is different for each vehicle mode l. Confirm configuration of each vehicle model.
 Never perform “WRITE CONFIGURATION” except for new CAN gateway.
Work ProcedureINFOID:0000000006220582
1.SAVING VEHICLE SPECIFICATION
CONSULT-III Configuration
Perform “READ CONFIGURATION” to save or prin t current vehicle specification. Refer to L A N - 111 , "
Descrip-
tion".
NOTE:
If “READ CONFIGURATION” can not be used, use the “WRITE CONFIGURATION - Manual selection” after
replacing CAN gateway.
>> GO TO 2.
2.REPLACE CAN GATEWAY
Replace CAN gateway. Refer to LAN-117, "
Removal and Installation".
>> GO TO 3.
3.WRITING VEHICLE SPECIFICATION
CONSULT-III Configuration
Perform “WRITE CONFIGURATION - Config file” or “W RITE CONFIGURATION - Manual selection” to write
vehicle specification. Refer to L A N - 111 , "
Work Procedure".
>> WORK END
Revision: 2010 May2011 QX56

LU-1
ENGINE
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LU
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CONTENTS
ENGINE LUBRICATION SYSTEM
PRECAUTION ................ ...............................2
PRECAUTIONS .............................................. .....2
Liquid Gasket ..................................................... ......2
PREPARATION ............................................3
PREPARATION .............................................. .....3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
SYSTEM DESCRIPTION ..............................5
LUBRICATION SYSTEM ............................... .....5
Engine Lubrication System ................................. ......5
Engine Lubrication System Schematic ......................6
PERIODIC MAINTENANCE ..........................7
ENGINE OIL ................................................... .....7
Inspection ............................................................ ......7
Draining .....................................................................8
Refilling .....................................................................8
OIL FILTER .........................................................9
Removal and Installation ..................................... ......9
Inspection ............................................................ .....9
REMOVAL AND INSTALLATION ...............11
OIL COOLER ....................................................11
Exploded View ..................................................... ....11
Removal and Installation .........................................11
Inspection ................................................................12
OIL PUMP .........................................................13
Exploded View .........................................................13
Removal and Installation .........................................13
Disassembly and Assembly .....................................14
Inspection ................................................................14
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .............................................
17
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
17
Periodical Maintenance Specification .................. ....17
Engine Oil Pressure ...............................................17
Oil Pump .................................................................17
Regulator Valve ......................................................17
Revision: 2010 May2011 QX56

PREPARATIONLU-3
< PREPARATION >
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000006289612
Commercial Service ToolINFOID:0000000006289613
Tool number
(Kent-Moore No.)
Tool name
Description
ST25051001
(J-25695-1)
Oil pressure gauge Measuring oil pressure
Maximum measuring range:
2,452 kPa (25 kg/cm
2, 356 psi)
ST25052000
(J-25695-2)
Hose Adapting oil pressure gauge to cylinder block
K V 1 0 1111 0 0
(J-37228)
Seal cutter Removing steel oil pan and rear timing chain
case
KV10115801
(J-38956)
Oil filter wrench Removing and installing oil filter
a: 64.3 mm (2.531 in)
S-NT050
S-NT559
NT046
S-NT375
Revision: 2010 May2011 QX56

SERVICE DATA AND SPECIFICATIONS (SDS)
LU-17
< SERVICE DATA AND SPECIFICATIONS (SDS)
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Periodical Maintenance SpecificationINFOID:0000000006289628
ENGINE OIL CAPACITY (APPROXIMATE)
Unit: (US qt, Imp qt)
Engine Oil PressureINFOID:0000000006289629
Unit: kPa (kg/cm2, psi)
*: Engine oil temperature at 80
°C (176 °F)
Oil PumpINFOID:0000000006289630
Unit: mm (in)
Regulator ValveINFOID:0000000006289631
Unit: mm (in)
Drain and refill With oil filter change 6.5 (6-7/8, 5-3/4)
Without oil filter change 6.2 (6-4/8, 5-1/2)
Dry engine (engine overhaul) 7.6 (8, 6-3/4)
Engine speed Approximate discharge pressure* Idle speed More than 98 (1.0, 14)2,000 rpm More than 294 (3.0, 43)
Oil pump body to oil pump outer rotor radial clearance 0.114 - 0.200 (0.0045 - 0.0079)
Oil pump inner rotor to oil pump outer rotor tip clearance Below 0.180 (0.0071)
Oil pump body to oil pump inner rotor axial clearance 0.030 - 0.070 (0.0012 - 0.0028)
Oil pump body to oil pump outer rotor axial clearance 0.030 - 0.090 (0.0012 - 0.0035)
Oil pump inner rotor to brazed portion of housing clearance 0.045 - 0.091 (0.0018 - 0.0036)
Regulator valve to oil pump cover clearance 0.040 - 0.097 (0.0016 - 0.0038)
Revision: 2010 May2011 QX56

MA-1
MAINTENANCE
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CONTENTS
MAINTENANCE
PREPARATION .............
...............................3
PREPARATION .............................................. .....3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
PERIODIC MAINTENANCE ..........................4
GENERAL MAINTENANCE ........................... .....4
Explanation of General Maintenance .................. ......4
PERIODIC MAINTENANCE ................................6
Introduction of Periodic Maintenance .................. ......6
Schedule 1 ................................................................6
Schedule 2 ................................................................8
RECOMMENDED FLUIDS AND LUBRI-
CANTS ................................................................
10
Fluids and Lubricants .......................................... ....10
Engine Oil Recommendation ..................................10
Anti-Freeze Coolant Mixture Ratio ..........................11
ENGINE MAINTENANCE ...................................12
DRIVE BELTS ....................................................... ....12
DRIVE BELTS : Exploded View ..............................12
DRIVE BELTS : Checking .......................................12
DRIVE BELTS : Tension Adjustment .....................12
ENGINE COOLANT ............................................... ....12
ENGINE COOLANT : Inspection .............................12
ENGINE COOLANT : Draining ................................13
ENGINE COOLANT : Refilling ................................13
ENGINE COOLANT : Flushing ...............................15
RESERVOIR TANK CAP ..........................................15
RESERVOIR TANK CAP : Inspection ................. ....15
RADIATOR ............................................................ ....16
RADIATOR : Inspection ..........................................16
FUEL LINES .......................................................... ....16
FUEL LINES : Inspection ........................................17
AIR CLEANER FILTER ......................................... ....17
AIR CLEANER FILTER : Removal and Installation
....
17
ENGINE OIL ........................................................... ....17
ENGINE OIL : Draining ............................................17
ENGINE OIL : Refilling ............................................17
OIL FILTER ............................................................ ....18
OIL FILTER : Removal and Installation ...................18
SPARK PLUG ........................................................ ....18
SPARK PLUG : Removal and Installation ...............19
SPARK PLUG : Inspection ......................................19
EVAP VAPOR LINES ............................................ ....20
EVAP VAPOR LINES : Inspection ...........................20
CHASSIS MAINTENANCE ...............................21
EXHAUST SYSTEM . ..................................................21
EXHAUST SYSTEM : Inspec tion ............................21
A/T FLUID .............................................................. ....21
A/T FLUID : Inspection ............................................21
TRANSFER FLUID ................................................ ....21
TRANSFER FLUID : Inspection ..............................21
TRANSFER FLUID : Draining .................................21
TRANSFER FLUID : Refilling ..................................22
FRONT PROPELLER SHAFT: 2F P15 ................. ....22
FRONT PROPELLER SHAFT: 2F P15 : Inspec-
tion ...........................................................................
22
REAR PROPELLER SHAFT: 2F P26 .................... ....23
REAR PROPELLER SHAFT: 2F P26 : Inspection ....23
REAR PROPELLER SHAFT: 2S1410 ................... ....23
REAR PROPELLER SHAFT: 2S1410 : Inspection ....23
FRONT DIFFERENTIAL GEAR OIL: R180A ........ ....24
FRONT DIFFERENTIAL GEAR OIL: R180A : In-
spection ...................................................................
24
Revision: 2010 May2011 QX56

MA-2
FRONT DIFFERENTIAL GEAR OIL: R180A :
Draining ..................................................................
24
FRONT DIFFERENTIAL GEAR OIL: R180A : Re-
filling .......................................................................
25
REAR DIFFERENTIAL GEAR OIL: R230 ............. ...25
REAR DIFFERENTIAL GEAR OIL: R230 : Inspec-
tion ..........................................................................
25
REAR DIFFERENTIAL GEAR OIL: R230 : Drain-
ing ...........................................................................
25
REAR DIFFERENTIAL GEAR OIL: R230 : Refill-
ing ...........................................................................
26
WHEELS (BONDING WEIGHT TYPE) .....................26
WHEELS (BONDING WEIGHT TYPE) : Adjust-
ment ..................................................................... ...
26
BRAKE FLUID LEVEL AND LEAKS ........................27
BRAKE FLUID LEVEL AND LEAKS : Inspection ...28
BRAKE LINES AND CABLES ............................... ...28
BRAKE LINES AND CABLES : Inspection .............28
BRAKE FLUID ....................................................... ...28
BRAKE FLUID : Bleeding Brake System ................28
DISC BRAKE ......................................................... ...30
DISC BRAKE : Inspection ......................................30
DISC BRAKE : Front Disc Brake ............................31
DISC BRAKE : Rear Disc Brake .............................31
STEERING GEAR AND LINKAGE ........................ ...31
STEERING GEAR AND LINKAGE : Inspection ......31
POWER STEERING FLUID AND LINES ............... ...32
POWER STEERING FLUID AND LINES : Inspec-
tion ..........................................................................
32
AXLE AND SUSPENSION PARTS ...........................32
AXLE AND SUSPENSION PARTS : Inspection .. ...32
DRIVE SHAFT ........................................................ ...33
DRIVE SHAFT : Inspection .....................................33
BODY MAINTENANCE .....................................34
LOCKS, HINGES AND HOOD LATCH .................. ...34
LOCKS, HINGES AND HOOD LATCH : Lubricat-
ing ...........................................................................
34
SEAT BELT, BUCKLES, RETRACTORS, AN-
CHORS AND ADJUSTERS ................................... ...
34
SEAT BELT, BUCKLES, RETRACTORS, AN-
CHORS AND ADJUSTERS : Inspection .................
34
SERVICE DATA AND SPECIFICATIONS
(SDS) .......... ................................................
35
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
35
DRIVE BELTS ........................................................ ...35
DRIVE BELTS : Drive Belts ....................................35
ENGINE COOLANT ............................................... ...35
ENGINE COOLANT :
Periodical Maintenance Specification ....................
35
ENGINE OIL ........................................................... ...35
ENGINE OIL : Periodical Maintenance Specifica-
tion ..........................................................................
35
SPARK PLUG ........................................................ ...35
SPARK PLUG : Spark Plug ....................................35
ROAD WHEEL ....................................................... ...35
ROAD WHEEL : Road Wheel .................................35
Revision: 2010 May2011 QX56

PREPARATIONMA-3
< PREPARATION >
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PREPARATION
PREPARATION
Special Service ToolINFOID:0000000006220960
Commercial Service ToolINFOID:0000000006220961
Tool number
(SPX-North America No.)
Tool name
Description
KV10115801
(J-38956)
Oil filter wrench Removing and installing oil filter
a: 64.3 mm (2.531 in)
S-NT375
Tool name
Description
Power tool Loosening nuts and bolts
Spark plug wrench Removing and installing spark plug a : 14 mm (0.55 in)
PBIC0190E
JPBIA0399ZZ
Revision: 2010 May2011 QX56

PERIODIC MAINTENANCEMA-7
< PERIODIC MAINTENANCE >
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NOTE:
(1) After 60,000 miles (96,000 km) or 48 months, inspect every 15,000 miles (24,000 km) or 12 months. Replace the drive belts i
f found
damaged or if the auto belt tensioner reading reaches the maximum limit.
(2) If operating mainly in dusty conditions, more frequent maintenance may be required.
(3) Maintenance-free item. For service procedures, refer to FL section.
(4) First replacement interval is 105,000 miles (168,000 km) or 84 months. After first replacement, replace every 75,000 miles (120,000
km) or 60 months. Use only Genu ine NISSAN Long Life Antifreeze/Coo lant (blue) or equivalent with proper mixture ratio of 50% anti-
freeze and 50% demineralized or distilled water. Mixing any other type of coolant or the use of non-distilled water will reduce the life
expectancy of the factory-fill coolant.
(5) Periodic maintenance is not required. However, if valve noise increases, inspect valve clearance.
* Maintenance items and intervals with “*” are recommended by INFINITI for reliable vehicle operation. The owner need not perfo rm
such maintenance in order to maintain the emission warranty or manufacturer recall liability. Other maintenance items and inter vals are
required.
CHASSIS AND BODY
Abbreviations: R = Replace. I = Inspec t. Correct or replace if necessary.
Fuel filter NOTE (3) —
Engine coolant* NOTE (4) MA-13
Engine oil R R R R R R R RMA-17
Engine oil filter (Use genuine
NISSAN engine oil filter or
equivalent.)R R RRRRRR
MA-18
Spark plugs (Iridium-tipped
type)Replace every 105,000 miles (168,000 km).
MA-19
Intake & exhaust valve clear-
ance*NOTE (5)
EM-12
MAINTENANCE OPERATIONMAINTENANCE INTERVAL
Reference
Section -
Page or -
Content Title
Perform at number of miles,
kilometers or months, which-
ever comes first. Miles x 1,000
(km x 1,000)
Months 33.75
(54)
27 37.5
(60)
30 41.25
(66)
33 45
(72)
36 48.75
(78)
39 52.5
(84)
42 56.25
(90)
45 60
(96)
48
MAINTENANCE OPERATION MAINTENANCE INTERVAL
Reference
Section -
Page or - Con- tent Title
Perform at number of miles,
kilometers or months,
whichever comes first. Miles x 1,000
(km x 1,000)
Months 3.75
(6)
3 7.50
(12)
6 11 . 2 5
(18)
9 15
(24)
12 18.75
(30)
15 22.5
(36)
18 26.25
(42)
21 30
(48)
24
Brake lines & cables I I MA-28
Brake fluid R RMA-28
Brake pads & rotors I I I IMA-30
BR-16
BR-18
BR-16
BR-18
Transfer fluid & differential
gear oil
NOTE (1) I I MA-21MA-24
MA-25
Automatic transmission flu-
id
NOTE (2)
—
Steering gear & linkage,
axle & suspension parts IIII
MA-31
MA-32
Tire rotation NOTE (3) MA-4WT-63
Drive shaft boots and pro-
peller shaft (4WD models) IIII MA-33MA-22
MA-23
MA-23
Revision: 2010 May2011 QX56