2011 INFINITI QX56 battery replacement

DLK-196
< SYMPTOM DIAGNOSIS >
INTELLIGENT KEY LOW BATTERY WARNING DOES NOT OPERATE
 Confirm the operation after replacement.
Is the result normal?
YES >> INSPECTION END
NO >> Check intermittent incident. Refer to GI-40, "
Intermittent Incident".
Revision: 2010 May2011 QX56

DLK-260
< REMOVAL AND INSTALLATION >
INTELLIGENT KEY BATTERY
INTELLIGENT KEY BATTERY
Removal and InstallationINFOID:0000000006226127
1. Release the lock knob at the back of the Intelligent Key and remove the mechanical key.
2. Insert a flat-blade screwdriver (A) wrapped with a cloth into the slit of the corner and twist it to separate the upper part from the
lower part.
CAUTION:
 Do not touch the circuit board or battery terminal.
 The key fob is water-resistant. However, if it does get wet,immediately wipe it dry.
3. Replace the battery with new one.
4. Align the tips of the upper and lower parts, and then push them together until it is securely closed.
CAUTION:
 When replacing battery, keep dirt, grease, and other for-
eign materials off the electrode contact area.
 After replacing the battery, check that all Intelligent Key
functions work normally.
PIIB6221E
Battery replacement :Coin-type lithium battery
(CR2025)
PIIB6222E
Revision: 2010 May2011 QX56

EM-4
< PRECAUTION >
PRECAUTIONS
If turning the steering wheel is required with the battery disconnected or discharged, follow the operation pro-
cedure below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position. (At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock wi ll remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect bot h battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button igniti on switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.
Precaution for Drain Engine Coolant and Engine OilINFOID:0000000006289509
Drain engine coolant and engine oil when engine is cooled.
Precaution for Disconnecting Fuel PipingINFOID:0000000006289510
 Before starting work, check no fire or sp ark producing items are in the work area.
 Release fuel pressure before disconnecting and disassembly.
 After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Handling High Pressure Fuel SystemINFOID:0000000006289511
 High pressure fuel system components are betw een high pressure fuel pump and fuel injector.
 Always release fuel pressure and never start the engine when performing removal and installation.
 When removing or installing parts without releasing fuel pressure, fuel may be splashed and, if fuel contacts
skin or eyes, it may cause inflammation.
Precaution for Removal and DisassemblyINFOID:0000000006289512
 When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-
structed operations.
 Exercise maximum care to avoid damage to mating or sliding surfaces.
 Cover openings of engine system with tape or the equival ent, if necessary, to seal out foreign materials.
 Mark and arrange disassembly parts in an organi zed way for easy troubleshooting and assembly.
 When loosening nuts and bolts, as a basic rule, star t with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and ReplacementINFOID:0000000006289513
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and InstallationINFOID:0000000006289514
 Use torque wrench to tighten bolts or nuts to specification.
 When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
 Replace with new gasket, packing, oil seal or O-ring.
 Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.
 Dowel pins are used for several parts alignment. When replacing and reassembling parts with dowel pins,
check that dowel pins are installed in the original position.
Revision: 2010 May2011 QX56

EXL-126
< REMOVAL AND INSTALLATION >[XENON TYPE]
FRONT COMBINATION LAMP
Disconnect the battery negative terminal or remove the fuse.
1. Remove front grille. Refer to
EXT-19, "
Removal and Installation".
2. Remove front bumper molding. Refer to EXT-13, "
Removal and Installation".
3. Remove front bumper fascia. Refer to EXT-13, "
Removal and Installation".
4. Remove headlamp mounting bolts.
5. Pull out headlamp assembly forward vehicle.
6. Disconnect connectors before removing headlamp assembly.
INSTALLATION
Install in the reverse order of removal.
NOTE:
After installation, perform aiming adjustment. Refer to EXL-121, "
description".
ReplacementINFOID:0000000006369465
CAUTION:
 Disconnect the battery negative terminal or remove the fuse.
 After installing the bulb, install the resin cap and the bulb socket securely for watertightness.
 Never touch the glass of bu lb directly by hand. Keep grease an d other oily matters away from it.
Never touch bulb by hand while it is lit or right after being turned off.
 Never leave bulb out of lamp reflector for a long ti me because dust, moisture smoke, etc. may affect
the performance of lamp. When replacing bulb, be sure to replace it with new one.
HEADLAMP BULB (HI/LO)
1. Remove fender protector. Refer to EXT-23, "FENDER PROTECTOR : Removal and Installation".
2. Rotate resin cap counterclockwise and unlock it.
3. Rotate bulb socket counterclockwise and unlock it.
4. Remove retaining spring lock. And then remove bulb from headlamp housing assembly.
CAUTION:
Never break the xenon bulb ceramic tube when replacing
the bulb.
PARKING LAMP BULB
1. Remove hood switch*.
*:When replace a right.
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
FRONT TURN SIGNAL LAMP BULB
1. Remove hood switch*.
*:When replace a right.
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
SIDE MARKER LAMP BULB
1. Remove fender protector. Refer to EXT-23, "FENDER PROTECTOR : Removal and Installation"
2. Rotate bulb socket counterclockwise and unlock it.
3. Remove bulb from bulb socket.
JPLIA0919ZZ
Revision: 2010 May2011 QX56

EXL-128
< REMOVAL AND INSTALLATION >[XENON TYPE]
FRONT FOG LAMP
FRONT FOG LAMP
Exploded ViewINFOID:0000000006369467
Removal and InstallationINFOID:0000000006369468
CAUTION:
Disconnect the battery negative terminal or remove the fuse.
REMOVAL
1. Remove front fender protector. Refer to
EXT-23, "FENDER PROTECTOR : Removal and Installation".
2. Remove front fog lamp finisher.
3. Disconnect front fog lamp harness connector.
4. Remove front fog lamp fixing screw.
5. Disengage pawl, and then remove front fog lamp.
INSTALLATION
Install in the reverse order of removal.
NOTE:
After installation, perform aiming adjustment. Refer to EXL-123, "
Description".
ReplacementINFOID:0000000006369469
CAUTION:
 Disconnect the battery negative terminal or remove the fuse.
 Never touch the glass of bulb directly by hand. Keep grease an d other oily matters away from it.
Never touch bulb by hand while it is lit or right after being turned off.
 Never leave bulb out of lamp reflector for a long ti me because dust, moisture smoke, etc. may affect
the performance of lamp. When replacing bulb, be sure to replace it with new one.
FRONT FOG LAMP BULB
1. Remove front fender protector. Keep the service area. Refer to EXT-23, "FENDER PROTECTOR :
Removal and Installation".
1. Front bumper 2. Front fog lamp 3. Front fog lamp finisher
: Pawl
JMLIA1117ZZ
Revision: 2010 May2011 QX56

EXL-142
< REMOVAL AND INSTALLATION >[XENON TYPE]
BACK-UP LAMP
Replacement
INFOID:0000000006369488
CAUTION:
 Disconnect the battery negative terminal or remove the fuse.
 Never touch the glass of bu lb directly by hand. Keep grease an d other oily matters away from it.
Never touch bulb by hand while it is lit or right after being turned off.
 Never leave bulb out of lamp reflector for a long ti me because dust, moisture smoke, etc. may affect
the performance of lamp. When replacing bulb, be sure to replace it with new one.
TAIL LAMP BULB
1. Remove lamp mask. Refer to INT-39, "Exploded View".
2. Disconnect tail lamp connector.
3. Tail bulb socket counterclockwise and unlock it.
4. Remove bulb from bulb socket.
BACK-UP LAMP BULB
1. Remove lamp mask. Refer to INT-39, "Exploded View".
2. Disconnect back-up lamp connector.
3. Turn bulb socket counterclockwise and unlock it.
4. Remove bulb from bulb socket.
Revision: 2010 May2011 QX56

LICENSE PLATE LAMPEXL-143
< REMOVAL AND INSTALLATION > [XENON TYPE]
C
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LICENSE PLATE LAMP
Exploded ViewINFOID:0000000006369489
Removal and InstallationINFOID:0000000006369490
CAUTION:
Disconnect the battery negative terminal or remove the fuse.
REMOVAL
1. Remove back door trim. Refer to INT-39, "Removal and Installation".
2. Disconnect license plate lamp connector.
3. Remove back door finisher center upper.
4. Remove license plate lamp while pushing a resin clip, and then remove license plate lamp.
INSTALLATION
Install in the reverse order of removal.
ReplacementINFOID:0000000006369491
CAUTION:
 Disconnect the battery negative terminal or remove the fuse.
 Never touch the glass of bulb directly by hand. Keep grease and other oily matters away from it.
Never touch bulb by hand while it is lit or right after being turned off.
 Never leave bulb out of lamp reflector for a long time because dust, moisture smoke, etc. may affect
the performance of lamp. When replacing bu lb, be sure to replace it with new one.
LICENSE PLATE LAMP BULB
1. Remove back door trim. Refer to INT-39, "Removal and Installation".
2. Disconnect license plate lamp connector.
1. License plate lamp harness 2. License plate lamp bulb socket 3. License plate lamp bulb
4. License plate lamp 5. Back door finisher center upper
JMLIA1122ZZ
Revision: 2010 May2011 QX56

HA-1
VENTILATION, HEATER & AIR CONDITIONER
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SECTION HA
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CONTENTS
HEATER & AIR CONDITIONING SYSTEM
PRECAUTION ................ ...............................3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
3
Precaution for Procedure without Cowl Top Cover ......4
Precautions For Refrigerant System Service ............4
Service Equipment ....................................................6
PREPARATION ............................................9
PREPARATION .............................................. .....9
Special Service Tool ........................................... ......9
Commercial Service Tool ........................................12
Sealant or/and Lubricant .........................................12
SYSTEM DESCRIPTION .............................13
COMPONENT PARTS ................................... ....13
Component Parts Location .................................. ....13
Component Description ...........................................13
SYSTEM .............................................................14
System Diagram .................................................. ....14
System Description .................................................14
BASIC INSPECTION ...................................16
DIAGNOSIS AND REPAIR WORKFLOW ..... ....16
Work Flow ........................................................... ....16
REFRIGERANT ..................................................18
Description .......................................................... ....18
Leak Test ................................................................18
Recycle Refrigerant .................................................20
Charge Refrigerant ..................................................20
LUBRICANT ................................................... ....22
Description .......................................................... ....22
Inspection ............................................................ ....22
Perform Lubricant Return Operation .......................22
Lubricant Adjusting Procedure for Components
Replacement Except Compressor ...........................
22
Lubricant Adjusting Procedure for Compressor
Replacement ...........................................................
23
PERFORMANCE TEST ....................................25
Inspection ................................................................25
SYMPTOM DIAGNOSIS ..............................27
REFRIGERATION SYSTEM SYMPTOMS ........27
Trouble Diagnosis For Unusual Pressure ............ ....27
Symptom Table .......................................................27
NOISE ................................................................29
Symptom Table .......................................................29
REMOVAL AND INSTALLATION ...............30
COMPRESSOR .................................................30
Exploded View ..................................................... ....30
COMPRESSOR ..........................................................30
COMPRESSOR : Removal and Installation ............30
MAGNET CLUTCH ................................................ ....31
MAGNET CLUTCH : Removal and Installation of
Compressor Clutch ..................................................
31
Inspection ................................................................32
COOLER PIPE AND HOSE ..............................33
Exploded View .........................................................33
HIGH-PRESSURE FLEXIBLE HOSE ........................34
HIGH-PRESSURE FLEXIBLE HOSE : Removal
and Installation .................................................... ....
34
LOW-PRESSURE FLEXIBLE HOSE ..................... ....35
LOW-PRESSURE FLEXIBLE HOSE : Removal
and Installation ........................................................
35
HIGH-PRESSURE PIPE ............................................35
Revision: 2010 May2011 QX56