INFINITI QX56 2009 Factory Service Manual

REAR DOOR GLASS AND REGULATORGW-19
< ON-VEHICLE REPAIR >
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REAR DOOR GLASS AND REGULATOR
Removal and InstallationINFOID:0000000003775957
REAR DOOR GLASS
Removal
1. Remove the rear door finisher. Refer to INT-11, "Removal and Installation".
2. Position the vapor barrier aside.
3. Temporarily reconnect the power window switch.
4. Operate the power window switch to raise/lower the door win- dow until the glass bolts can be seen.
5. Remove the glass run from the partition glass.
6. Remove the partition sash bolt (lower) and screw (upper) to remove the sash.
7. Remove the glass bolts and glass.
Installation
Installation is in the reverse order of removal.
Fitting Inspection
• Check that the glass is securely fit into the glass run groove.
• Lower the glass slightly [approximately 10 to 20 mm (0 .39 to 0.79 in)], and check that the clearance to the
sash is parallel. If the clearance between the glass and sash is not parallel, loosen the regulator bolts, guide
rail bolts, and glass and carrier plate bolts to correct the glass position.
REAR DOOR GLASS REGULATOR
WIIA0942E
SIIA0290E
Glass bolts : 6.1 N·m (0.62 kg-m, 54 in-lb)
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GW-20
< ON-VEHICLE REPAIR >
REAR DOOR GLASS AND REGULATOR
Removal
1. Remove the rear door finisher. Refer to INT-11, "Removal and Installation".
2. Position aside the vapor barrier.
3. Temporarily reconnect the power window switch.
4. Operate the power window switch to raise/lower the door win- dow until the glass bolts can be seen.
5. Remove the glass bolts.
6. Raise the glass and hold in place with suitable tool.
7. Remove the bolts, and the regulator and guide channel.
8. Disconnect the connector from the regulator assembly.
Inspection after removal
Check the regulator assembly for the following items. If a malfunction is detected, replace or grease it.
• Gear wear
• Regulator deformation
• Spring damage
• Grease condition for each sliding part
Installation
1. Connect the harness connector to the regulator assembly and install the regulator and guide channel.
SIIA0290E
SIIA0291E
SIIA0291E
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REAR DOOR GLASS AND REGULATORGW-21
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2. Install the glass from outside to ensure that it is in both the front and rear glass channels. Tighten glass bolts to the specified
torque.
3. Reposition the vapor barrier.
4. Install the rear door finisher. Refer to INT-11, "
Removal and
Installation".
Glass bolts
: 6.1 N·m (0.62 kg-m, 54 in-lb)
SIIA0290E
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GW-22
< ON-VEHICLE REPAIR >
SIDE WINDOW GLASS
SIDE WINDOW GLASS
Removal and InstallationINFOID:0000000003775958
REMOVAL
1. Remove the luggage side finisher lower and upper. Refer to INT-19, "Removal and Installation".
2. Disconnect the rear side window motor harness.
3. Remove the rear side window motor mounting bolts.
4. Remove the rear side window front mounting nuts.
INSTALLATION
1. Install the glass from outside to insure that it is even with the top and bottom of the opening. Tighten rear
side window front mounting nuts to the specified torque.
2. Install rear side window motor mounting bolts. Tighten rear side window latch mounting bolts to the speci-
fied torque.
3. Connect the rear side window motor harness.
4. Install rear pillar upper and lower finisher. Refer to INT-19, "
Removal and Installation".
1. Rear side window glass2. Rear side window motor 3. Weatherstrip
4. Inner panel 5. Outer panel
LIIA0965E
Glass mounting nuts : 4.2 N·m (0.43 kg-m, 37 in-lb)
Motor mounting bolts : 5.6 N·m (0.57 kg-m, 49 in-lb)
Revision: December 20092009 QX56

HA-1
VENTILATION, HEATER & AIR CONDITIONER
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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 Working with HFC-134a (R-134a) ......4
Precaution for Procedure without Cowl Top Cover ......4
Contaminated Refrigerant .........................................4
General Refrigerant Precaution ................................5
Precaution for Leak Detection Dye ...........................5
A/C Identification Label .............................................5
Precaution for Refrigerant Connection ......................5
Precaution for Service of Compressor ....................10
Precaution for Service Equipment ...........................10
PREPARATION ...........................................13
PREPARATION .............................................. ....13
Special Service Tool ........................................... ....13
HFC-134a (R-134a) Service Tool and Equipment ....13
Commercial Service Tool ........................................16
FUNCTION DIAGNOSIS ..............................17
REFRIGERATION SYSTEM .......................... ....17
Refrigerant Cycle ................................................ ....17
Refrigerant System Protection ................................17
OIL ......................................................................19
Maintenance of Oil in Compressor ...................... ....19
ON-VEHICLE MAINTENANCE ....................20
REFRIGERATION SYSTEM .......................... ....20
HFC-134a (R-134a) Service Procedure .............. ....20
OIL ......................................................................22
Maintenance of Oil Quantity in Compressor ....... ....22
FLUORESCENT LEAK DETECTOR ................24
Checking of Refrigerant Leaks ............................ ....24
Checking System for Leaks Using the Fluorescent
Dye Leak Detector ...................................................
24
Dye Injection ............................................................24
ELECTRICAL LEAK DETECTOR ....................26
Checking of Refrigerant Leaks ................................26
Electronic Refrigerant Leak Detector .......................26
ON-VEHICLE REPAIR .................................29
REFRIGERATION SYSTEM .............................29
Component .......................................................... ....29
COMPRESSOR .................................................31
Removal and Installation for Compressor ...............31
Removal and Installation for Compressor Clutch ....32
LOW-PRESSURE FLEXIBLE HOSE ................36
Removal and Installation for Low-Pressure Flexi-
ble Hose ..................................................................
36
LOW-PRESSURE PIPE ....................................37
Removal and Installation for Low-Pressure Pipe .....37
Removal and Installation for Rear High- and Low-
Pressure A/C and Heater Core Pipes ......................
37
Removal and Installation for Underfloor Rear
High- and Low-Pressure A/C and Heater Core
Pipes ........................................................................
38
HIGH-PRESSURE FLEXIBLE HOSE ...............40
Removal and Installation for High-Pressure Flexi-
ble Hose ..................................................................
40
HIGH-PRESSURE PIPE ....................................41
Removal and Installation for High-Pressure Pipe ....41
Removal and Installation for Rear High- and Low-
Pressure A/C and Heater Core Pipes ......................
41
Removal and Installation for Underfloor Rear
High- and Low-Pressure A/C and Heater Core
Pipes ........................................................................
42
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HA-2
CONDENSER ....................................................44
Removal and Installation for Condenser ............. ...44
AMBIENT SENSOR ...........................................45
Removal and Installation ..................................... ...45
REFRIGERANT PRESSURE SENSOR ............46
Removal and Installation for Refrigerant Pressure
Sensor ................................................................. ...
46
EXPANSION VALVE ...................................... ...47
Removal and Installation for Front Expansion
Valve .................................................................... ...
47
LIQUID TANK ................................................. ...48
Removal and Installation of Liquid Tank .............. ...48
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... ...........................................
49
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
49
Service Data and Specification (SDS) ................. ...49
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PRECAUTIONSHA-3
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005856236
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 whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, 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 performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
 Do not use electrical test equipm ent 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 Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric 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 minutes before performing any service.
Precaution Necessary for Steering Wh eel Rotation After Battery Disconnect
INFOID:0000000005856237
NOTE:
 This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
 Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
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HA-4
< PRECAUTION >
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Working with HFC-134a (R-134a)INFOID:0000000003775286
WARNING:
 CFC-12 (R-12) refrigerant and HFC-134a (R-134a) refr igerant are not compatible. If the refrigerants
are mixed compressor failure is likely to occur. Refer to HA-4, "Contaminated Refrigerant"
. To deter-
mine the purity of HFC-134a (R-134a) in the vehicle and recovery tank, use recovery/recycling equip-
ment and refrigerant identifier.
 Use only specified oil for the HFC-134a (R-134a) A/C system and HFC-134a (R-134a) components. If
oil other than that specified is used , compressor failure is likely to occur.
 The specified HFC-134a (R-134a) oi l rapidly absorbs moisture from the atmosphere. The following
handling precautions must be observed:
- When removing refrigerant components from a vehicle, immediately cap (seal) the component to
minimize the entry of moisture from the atmosphere.
- When installing refrigerant co mponents to a vehicle, do not remove the caps (unseal) until just
before connecting the components . Connect all refrigerant loop components as quickly as possible
to minimize the entry of moisture into system.
- Only use the specified oil from a sealed container. Immediately reseal containers of oil. Without
proper sealing, oil will become moisture saturat ed and should not be used.
- Avoid breathing A/C refrigerant and oil vapor or mist. Exposure may irritate eyes, nose and throat.
Remove HFC-134a (R-134a) from the A/C system usin g certified service equipment meeting require-
ments of SAE J2210 [HFC-134a (R-134a) recycling equipment], or J2209 [HFC-134a (R-134a) recovery
equipment]. If accidental system discharge occurs , ventilate work area before resuming service.
Additional health and safety in formation may be obtained from refrigerant and oil manufacturers.
- Do not allow A/C oil to come in contact with styrofoam parts. Damage may result.
Precaution for Procedure without Cowl Top CoverINFOID:0000000003775287
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Contaminated RefrigerantINFOID:0000000003775288
If a refrigerant other than pure HFC-134a (R-134a) is identified in a vehicle, your options are:
 Explain to the customer that environmental regulations prohibit the release of contaminated refrigerant into
the atmosphere.
 Explain that recovery of the contaminated refri gerant could damage your service equipment and refrigerant
supply.
 Suggest the customer return the vehicle to the locati on of previous service where the contamination may
have occurred.
 If you choose to perform the repair, recover the refrigerant using only dedicated equipment and contain-
ers. Do not recover contamin ated refrigerant into your existing service equipment. If your facility does
not have dedicated recovery equipment, you may contact a local refrigerant product retailer for available ser-
vice. This refrigerant must be disposed of in acco rdance with all federal and local regulations. In addition,
replacement of all refrigerant system components on the vehicle is recommended.
 If the vehicle is within the warranty period, the air conditioner warranty is void. Please contact NISSAN Cus-
tomer Affairs for further assistance.
PIIB3706J
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General Refrigerant PrecautionINFOID:0000000003775289
WARNING:
 Do not release refrigerant into the air. Use appr oved recovery/recycling equipment to capture the
refrigerant every time an air co nditioning system is discharged.
 Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or air
conditioning system.
 Do not store or heat refrigerant containers above 52 °C (125 °F).
 Do not heat a refrigerant containe r with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.
 Do not intentionally drop, puncture, or incinerate refrigerant containers.
 Keep refrigerant away from open flames: poison ous gas will be produced if refrigerant burns.
 Refrigerant will displace oxygen, therefore be certa in to work in well ventilated areas to prevent suf-
focation.
 Do not pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air condition-
ing systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a) have
been shown to be combustible at elevated pressures. These mixtures, if ignited, may cause injury or
property damage. Additional health and safety info rmation may be obtained from refrigerant manu-
facturers.
Precaution for Leak Detection DyeINFOID:0000000003775290
 The A/C system contains a fluorescent leak detection dy e used for locating refrigerant leaks. An ultraviolet
(UV) lamp is required to illuminate the dye when inspecting for leaks.
 Always wear fluorescence enhancing UV safety goggles to protect your eyes and enhance the visibility of
the fluorescent dye.
 The fluorescent dye leak detector is not a replacement for an electronic refrigerant leak detector. The fluo-
rescent dye leak detector should be used in conjuncti on with an electronic refrigerant leak detector (J-
41995).
 For your safety and the customer's satisfaction, r ead and follow all manufacturer's operating instructions and
precautions prior to performing work.
 A compressor shaft seal should not be repaired because of dye seepage. The compressor shaft seal should
only be repaired after confirming the leak with an electronic refrigerant leak detector (J-41995).
 Always remove any dye from the leak area after repairs are complete to avoid a misdiagnosis during a future service.
 Do not allow dye to come into contact with paint ed body panels or interior components. If dye is spilled,
clean immediately with the approved dye cleaner. Fluores cent dye left on a surface for an extended period of
time cannot be removed .
 Do not spray the fluorescent dye cleaning agent on hot surfaces (engine exhaust manifold, etc.).
 Do not use more than one refrigerant dye bot tle (1/4 ounce / 7.4 cc) per A/C system.
 Leak detection dyes for HFC-134a (R-134a) and CFC-12 (R -12) A/C systems are different. Do not use HFC-
134a (R-134a) leak detection dye in CFC-12 (R-12) A/ C systems or CFC-12 (R-12) leak detection dye in
HFC-134a (R-134a) A/C systems or A/C system damage may result.
 The fluorescent properties of the dye will remain for over three (3) years unless a compressor failure occurs.
A/C Identification LabelINFOID:0000000003775291
Vehicles with factory installed fluorescent dye have this identification label on the underside of hood.
Precaution for Refrigerant ConnectionINFOID:0000000003775292
A new type refrigerant connection has been introduced to all refrigerant lines except the following locations.
 Expansion valve to cooling unit
 Evaporator pipes to evaporator (inside cooling unit)
 Refrigerant pressure sensor
FEATURES OF NEW TYPE REFRIGERANT CONNECTION
 The O-ring has been relocated. It has also been provided with a groove for proper installation. This reduces the possibility of the O-ring being caught in, or damaged by , the mating part. The sealing direction of the O-
ring is now set vertically in relation to the contacting surface of the mating part to improve sealing character-
istics.
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HA-6
< PRECAUTION >
PRECAUTIONS
 The reaction force of the O-ring will not occur in the direction that causes the joint to pull out, thereby facili-
tating piping connections.
O-RING AND REFRIGERANT CONNECTION
SHA815E
Revision: December 20092009 QX56