2009 INFINITI QX56 hood release

EXT-18
< SERVICE INFORMATION >
COWL TOP
COWL TOP
Removal and InstallationINFOID:0000000003776107
REMOVAL
1. Remove the right and left wiper arms. Refer to WW-74, "Front Wiper Arms".
2. Remove the cowl top seal. • Release the plastics clips on the cowl top seal which go through the cowl tops LH and RH and the cowltop extension.
3. Remove the cowl top covers LH and RH. • Release the plastic clips under the cowl top covers attaching to grommets on hoodledge.
• Disconnect the washer tubes from the wa sher nozzles under the cowl top covers.
4. Remove the cowl top extension brackets LH and RH. • Disconnect the wiper motor harness from the cowl top extension bracket LH.
• The cowl top extension bracket LH must be removed prior to the removal of the wiper motor and con-
necting rod assembly.
5. Remove the wiper motor and connecting rod linkage. Refer to WW-75, "
Wiper Motor and Linkage".
1. Clip CG1042. Clip C103 3. Cowl top cover RH
4. Cowl top seal 5. Drain tube6. Cowl top extension bracket RH
7. Cowl top extension 8. Cowl top extension bracket LH 9. Cowl top cover LH
WIIA0955E
Revision: December 20092009 QX56

GI-12
< HOW TO USE THIS MANUAL >
HOW TO READ WIRING DIAGRAMS
• ignition switch is “OFF”,
• doors, hood and trunk lid/back door are closed,
• pedals are not depressed, and
• parking brake is released.
MULTIPLE SWITCH
The continuity of multiple switch is described in two ways as shown below.
• The switch chart is used in schematic diagrams.
• The switch diagram is used in wiring diagrams.
SGI860
JSAIA0017GB
Revision: December 20092009 QX56

GI-46
< BASIC INSPECTION >
CONSULT-III CHECKING SYSTEM
CONSULT-III CHECKING SYSTEM
DescriptionINFOID:0000000003771217
• When CONSULT-III is connected with a data link connectorequipped on the vehicle side, it will communicate with the control
unit equipped in the vehicle and then enable various kinds of diag-
nostic tests.
• Refer to “CONSULT-III Operation Manual” for more information.
Function and System ApplicationINFOID:0000000003771218
1 : Hood release handle
2 : Data link connector
ALBIA0047ZZ
Diagnostic test mode Function
ENGINE
TRANSMISSION
ICC
*1
ABS
AIR BAG
IPDM E/R BCM
METER/M&A
INTELLIGENT KEY
AUTO DRIVE POS.
REARVIEW CAMERA AIR LEVELIZER MULTI AV
ALL MODE AWD/4WD
*2
HVAC
SONAR
*3
NVIS (NATS)
NVIS (NATS BCM OR S/ENT) NATS I-KEY
Work support This mode enables a technician to adjust some
devices faster and more accurately by following
the indications on CONSULT-III. x-xx--x-xxxx-x----x
Self-diagnostic Self-diagnostic can be performed quickly. ----x--------------
Self-diagnostic re-
sults Self-diagnostic results can be read and erased
quickly.
xxx x- xxxxx- xxx xxxxx
Trouble diagnostic
record Current self-diagnostic results and all trouble di-
agnostic records previously stored can be read.
--- - x--- - ----------
Data monitor Input/Output data in the ECM can be read. xxx x- x- xxxxxxx xx- - -
Data monitor (spec) Data monitor specification can be read. x------------------
CAN diagnosis The condition of CAN communication can be in-
dicated by a topology.
xxx xxxxxxx- - xx x- - - -
CAN diagnosis sup-
port monitor The communication condition of CAN communi-
cation line can be read.
xxx x- xxxxx- - xx x- - - -
Active test Diagnostic Test Mode
in which CONSULT-III
drives some actuators apart from the ECMs and
also shifts some parameters in a specified range. x-xx-x--xx-x-------
Function test This mode can show results of self-diagnosis of
ECU with either “OK” or “NG”. For engines, more
practical tests regarding sensors/switches and/
or actuators are available. xxxxx---x----------
DTC & SRT confir-
mation The results of SRT (System Readiness Test) and
the self-diagnosis status/result can be confirmed.
x-x-----x----------
DTC work support The operating condition to confirm Diagnosis
Trouble Codes can be selected. xxx-----x----------
ECM/ECU part num-
ber ECM/ECU part number can be read.
xxx x- - x- xxxxxx xx- - -
Revision: December 20092009 QX56

PRECAUTIONSHA-5
< PRECAUTION >
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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.
Revision: December 20092009 QX56

MA-6
< ON-VEHICLE MAINTENANCE >
GENERAL MAINTENANCE
ON-VEHICLE MAINTENANCE
GENERAL MAINTENANCE
General MaintenanceINFOID:0000000003776979
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owner can perform these
checks and inspections or have thei r INFINITI dealers perform them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed fr om time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the vehicle,
etc.
Item Reference page
Tires Check the pressure with a gauge at least once a month and always prior to a
long distance trip. Adjust to the specified pressure if necessary. Check carefully
for damage, cuts or excessive wear. —
Wheel lug nuts When checking the tires, make sure no nuts are missing, and check for any loose
nuts. Tighten if necessary. WT-41, "
Adjustment"
Windshield
Clean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary. —
Tire rotation Tires should be rotated every 12,000 km (7,500 miles). MA-29, "
Rotation"
Tire Pressure Monitor-
ing System (TPMS)
transmitter componentsReplace the TPMS transmitter grommet seat, valve core and cap when the tires
are replaced due to wear or age.
WT-43, "Transmitter
(Pressure Sensor)"
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel bal-
ancing may be needed. MA-28, "Balancing
Wheels", FSU-6, "Front
Wheel Alignment"
Windshield wiper
blades
Check for cracks or wear if they do not wipe properly.
—
Doors and engine
hood Check that all doors and the engine hood operate smoothly as well as the back
hatch. Also make sure that all latches lock securely. Lubricate if necessary. Make
sure that the secondary latch keeps the hood from opening when the primary
latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently. MA-33, "
Lubricating
Locks, Hinges and Hood
Latches"
Lamps
Make sure that the head lamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head
lamp aim. Clean the head lamps on a regular basis. EXL-143, "HEADLAMP :
Aiming Adjustment"
Item
Reference page
Warning lamps and
chimes Make sure that all warning lamps and chimes are operating properly.
WCS-4, "
WARNING
CHIME SYSTEM : Sys-
tem Description"
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.
—
Windshield defroster Check that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner. —
Steering wheel Check that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises. ST-15, "
On-Vehicle In-
spection and Service"
Seats
Check seat position controls such as seat adjusters, seat back recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every po-
sition. Check that the head restraints move up and down smoothly and that the
locks (if equipped) hold securely in all latched positions. Check that the latches
lock securely for folding-down rear seat backs. —
Revision: December 20092009 QX56

CHASSIS AND BODY MAINTENANCEMA-33
< ON-VEHICLE MAINTENANCE >
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Lubricating Locks, Hin
ges and Hood LatchesINFOID:0000000003777012
Lubricate the locks, hinges, and latches at the locations as shown. Refer to MA-12, "Fluids and Lubricants" .
Checking Seat Belts, Buckles, Re tractors, Anchors and AdjustersINFOID:0000000003777013
Check the seat belt buckles, webbing, retractors, anc hors and adjusters. Replace any seat belt assembly as
necessary. Refer to SB-11, "
Seat Belt Inspection".
• Check the seat belt anchors for loose mounting bolts, damage, or excessive wear.
• Check the seat belt webbing for any damage, cuts, fraying, or excessive wear.
• Check the retractor for smooth operation.
• Check the function of the buckles by inserting the seat belt tongue and checking for proper engagement of
the buckle and press the button on the buckle to c heck for proper release of the seat belt tongue.
WLIA0024E
Revision: December 20092009 QX56

HOOD SWITCHSEC-45
< COMPONENT DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Check continuity between hood switch connector E8 terminal 2 and
ground.
Is the inspection result normal?
YES >> GO TO 5
NO >> Repair or replace harness.
5.CHECK HOOD SWITCH
Check continuity between hood switch terminals 1 and 2.
Is the inspection result normal?
YES >> Replace IPDM E/R. Refer to PCS-34, "Removal and
Installation of IPDM E/R".
NO >> Replace hood switch.
Connector Terminals Continuity
E8 2Ground Yes
ALKIA1786ZZ
Terminals ConditionContinuity
1- 2 Pressed
No
Released Yes
ALKIA1787ZZ
Revision: December 20092009 QX56