2011 INFINITI QX56 tow

DLK-242
< REMOVAL AND INSTALLATION >
FRONT DOOR LOCK
7. While pulling outside handle, remove door key cylinder assem-bly (driver side) or outside handle escutcheon (passenger side).
8. While pulling outside handle (1), slide toward rear of vehicle to remove outside handle.
9. Remove front gasket and rear gasket.
10. Slide toward rear of vehicle to remove outside handle bracket.
11. Disconnect door lock cable from outside handle bracket.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
 When installing key rod, rotate key rod holder until a click is felt.
 Check door lock cable is properly engaged with outside handle bracket.
 After installation, check door op en/close, lock/unlock operation.
JMKIA0560ZZ
JMKIA0524ZZ
JMKIA2652ZZ
Revision: 2010 May2011 QX56

DLK-244
< REMOVAL AND INSTALLATION >
REAR DOOR LOCK
INSIDE HANDLE : Removal and Installation
INFOID:0000000006226103
REMOVAL
1. Remove rear door finisher. Refer to INT-16, "Removal and Installation".
2. Remove inside handle escutcheon. Refer to INT-16, "
Exploded View"
3. Remove inside handle mounting screws, and then remove inside handle.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
 Check door lock cables are properly engaged with inside handle.
 After installation, check door open/close, lock/unlock operation.
OUTSIDE HANDLE
OUTSIDE HANDLE : Removal and InstallationINFOID:0000000006226104
REMOVAL
1. Fully close rear door glass.
2. Remove rear door finisher. Refer to INT-16, "
Removal and Installation".
3. Remove sealing screen. NOTE:
Cat the buty-tape so that some parts of the buty-t ape do not remain on the sealing screen, if the sealing
screen is reused.
4. Remove door side grommet, and loosen TORX bolt from grom- met hole.
5. While pulling outside handle, remove outside handle escutch- eon.
6. While pulling outside handle (1), slide toward rear of vehicle to remove outside handle.
: TORX bolt
JMKIA0025ZZ
JMKIA5342ZZ
JMKIA0524ZZ
Revision: 2010 May2011 QX56

REAR DOOR LOCKDLK-245
< REMOVAL AND INSTALLATION >
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7. Remove front gasket and rear gasket.
8. Slide toward rear of vehicle to remove outside handle bracket.
9. Disconnect door lock cable from outside handle bracket.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
 Check door lock cable is properly engaged with outside handle bracket.
 After installation, check door op en/close, lock/unlock operation.
JMKIA2652ZZ
Revision: 2010 May2011 QX56

BACK DOOR LOCKDLK-247
< REMOVAL AND INSTALLATION >
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3. Remove clips and TORX screws of touch sensor.
4. Pull harness of touch sensor out of back door and remove touch sensor.
INSTALLATION
Note the following item, and then install in the reverse order of removal.
CAUTION:
Check back door open/close operation after installation.
BACK DOOR SUPPORT ROD
BACK DOOR SUPPORT ROD : Removal and InstallationINFOID:0000000006226108
REMOVAL
1. Remove cap of back door finisher side (LH). Refer to INT-39, "Exploded View".
2. Remove stud ball (1) of back door support rod (3) from back door assembly (2).
3. Remove automatic back door control module. Refer to DLK-262, "
Removal and Installation".
NOTE:
When replacing back door support rod, replace stud ba ll and automatic back door control module as a set,
since back door support rod is engaged and connected to stud ball and automatic back door control mod-
ule.
INSTALLATION
Note the following items, and then install in the reverse order of removal.
CAUTION:
 When reusing stud ball, always a pply locking sealant before installing stud ball to back door.
 Check back door open/close opera tion after installation.
EMERGENCY LEVER
EMERGENCY LEVER : Unlock proceduresINFOID:0000000006226109
UNLOCK PROCEDURES
NOTE:
If back door lock cannot be unlocked due to a malfuncti on or battery discharge, follow the procedures to
unlock back door.
1. Remove the emergency handle mask. Refer to INT-39, "
Exploded View".
2. From inside the vehicle, rotate emergency lever toward lower direction and unlock.
JMKIA5442ZZ
JMKIA5264ZZ
Revision: 2010 May2011 QX56

DLK-252
< REMOVAL AND INSTALLATION >
CAB MOUNTING INSULATOR
 Drain brake fluid from brake line. Refer to BR-10, "Draining".
 Release fuel pressure. Refer to EC-153, "
Work Procedure".
 Disconnect both battery cables. Refer to PG-164, "
Removal and Installation".
 Drain engine coolant from radiator. Refer to CO-8, "
Draining".
 Discharge refrigerant from A/C circuit. Refer to HA-20, "
Recycle Refrigerant".
 Drain power steering fluid from reservoir tank.
4. Remove parts relating to connection of body assembly and frame assembly.  Tire and wheel: Refer to WT-64, "
Removal and Installation" (with TPMS).
 Front fender protector (LH and RH): Refer to EXT-23, "
FENDER PROTECTOR : Removal and Installa-
tion".
 Front bumper: Refer to EXT-13, "
Removal and Installation".
 Radiator core support upper: Refer to DLK-220, "
Removal and Installation".
 Fan shroud: Refer to CO-16, "
Removal and Installation".
 Battery and battery case: Refer to PG-164, "
Removal and Installation".
 Air cleaner case (upper and lower): Refer to EM-27, "
Removal and Installation".
 Engine cover: Refer to EM-25, "
Removal and Installation".
 Rear wheel house protector (LH and RH): EXT-24, "
REAR WHEEL HOUSE PROTECTOR : Removal
and Installation".
 Rear bumper: Refer to EXT-17, "
Removal and Installation".
 Fuel filler tube: Remove to FL-8, "
Exploded View".
 Spare tire
 Towing hook bracket.
5. Separate parts relating to connection of body assembly and frame assembly. Vehicle front
 Disconnect ICC sensor connector. (models with ICC) Refer to CCS-176, "
Removal and Installation".
 Remove radiator upper hose and radiator lower hose from radiator assembly. Refer to CO-13,
"Exploded View".
 Remove A/T fluid cooler hose B and A/T fluid cooler hose E from A/T fluid cooler tubes. Refer to TM-
202, "Exploded View".
 Remove power steering return hose from oil cooler, and then power steering return hose clamp bolt from frame assembly. Refer to ST-54, "
Exploded View".
 Remove power steering suction hose from reservoir tank. Refer to ST-54, "
Exploded View".
CAUTION:
Never spill power steering fluid in engine room.
 Remove A/C low-presser flexible hose from A/C low-presser pipe. Refer to HA-35, "
LOW-PRESSURE
FLEXIBLE HOSE : Removal and Installation".
 Remove A/C hi-presser flexible hose from condenser. Refer to HA-34, "
HIGH-PRESSURE FLEXIBLE
HOSE : Removal and Installation".
 Remove all engine Control Harness connectors, har ness clips and others that are connected to the
body assembly side of the engine room. (engine room LH and RH side). Refer to PG-148, "
Engine Con-
trol Harness".
NOTE:
Separate harness connectors from ECM (engine control module). Refer to EC-10, "
General Precau-
tions".
CAUTION:
 When pulling out harnesses, never damage harnesses or connectors.
 After temporarily securing connectors, cover th em with vinyl or similar material to protect
against adhesion of foreign materials.
 Disconnect engine room harness connectors and remo ve harness clips from engine assembly (engine
RH side). Refer to PG-146, "
Engine Room Harness".
 Remove heater hoses from front water outlet tube (engine room RH side). Refer to HA-33, "
Exploded
View".
 Disconnect front wheel sensor connectors (LH and RH). Refer to BRC-134, "
FRONT WHEEL SENSOR
: Exploded View".
 Disconnect fuel feed tube and EVAP hos e (front wheel well LH side).
 Remove steering lower shaft from steering gear side assembly. Refer to ST-37, "
Removal and Installa-
tion"
CAUTION:
Spiral cable may be cut if steering wheel turns while separating steering column assembly and
steering gear assembly.
Revision: 2010 May2011 QX56

PRECAUTIONSDLN-7
< PRECAUTION > [TRANSFER: ATX90A]
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5. When the repair work is completed, re-connect both 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 ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of a ll control units using CONSULT-III.
Service Notice or Precautions for TransferINFOID:0000000006222211
CAUTION:
 Use Genuine NISSAN Transfer Fluid. Refer to MA-10, "
Fluids and Lubricants".
 Never reuse transfer fluid, once it has been drained.
 Check the fluid level or repl ace the fluid only with the vehicle parked on level ground.
 During removal or installati on, keep inside of transfer clear of dust or dirt.
 Replace all tires at the same time. Always use tir es of the proper size and the same brand and pat-
tern. Fitting improper size and unusually worn tires applies excessive force to vehicle mechanism
and can cause longitudinal vibration.
 Disassembly should be done in a clean work area, it is preferable to work in dustproof area.
 Before proceeding with disassembly, thoroughly clean the transfer. It is important to prevent the
internal parts from becoming contamin ated by dirt or other foreign matter.
 All parts should be carefully cl eaned with a general purpose, non-flammable solvent before inspec-
tion or reassembly.
 Check for the correct installation status prior to removal or disassembly. If matching marks are
required, be certain they do not interfere wit h the function of the parts when applied.
 Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace
them with a new ones if necessary.
 Gaskets, seals and O-rings should be replaced any time the transfer is disassembled.
 In principle, tighten bolts or nu ts gradually in several steps workin g diagonally from inside to out-
side. If tightening sequence is specified, use it.
 Observe the specified torque when assembling.
 Clean and flush the parts su fficiently and blow-dry them.
 Be careful not to damage sliding surfaces and mating surfaces.
 Clean inner parts with lint-free cloth or towels . Do not use cotton work gloves and rags to prevent
adhering fibers.
Revision: 2010 May2011 QX56

EXL-16
< SYSTEM DESCRIPTION >[XENON TYPE]
SYSTEM
- Swivels the headlamp to the vehicle-center side until it hits the stopper.
- Returns the swivel angle from the stopper. Completes t
he initialization with regarding the returned position
as the swivel angle 0 ° (straight-forward position).
Swivel Operation
 AFS control unit transmits the drive signal to the sw ivel actuator when activation conditions are satisfied.
And swivels the headlamp.
- The swivel starts after steering approximately 20 ° or more from straight-forward position.
NOTE:
The steering angle differs between right turn and left turn.
- The swivel angle becomes the maximum angle toward t he driving direction if the steering angle is approxi-
mately 90 ° or more depending on the vehicle speed. The swivel angle is maintained by shutting off the drive
signal.
- The swivel starts, and returns to the swivel angle 0 ° (straight-forward position) when the steering is returned
to the straight-forward position.
 AFS control unit returns the swivel angle to the strai ght-forward position, and stops the swivel regardless of
the steering angle if the operation condition is not satisfied while the swivel angle is 0°.
AFS OFF Indicator Lamp
 AFS control unit transmits AFS OFF indicator lamp signal to the combination meter via CAN communication.
 Combination meter turns AFS OFF indicator lamp ON /OFF/blinking according to AFS OFF indicator lamp
signal.
- AFS OFF indicator lamp is turned ON for 1 second for the AFS OFF indicator lamp bulb check when the igni-
tion switch is turned ON. AFS OFF indicator lamp is turned OFF within 1 second when the engine starts.
- AFS OFF indicator lamp turns ON when AFS is switched to “OFF” by operating AFS switch.
- AFS OFF indicator lamp blinks (1 second each) if AFS control unit detects a specific DTC.
NOTE:
Combination meter blinks AFS OFF indicator lamp (approximately 1 second each) if AFS OFF indicator
lamp signal is not received from AFS control unit.
HEADLAMP AUTO AIMING
Headlamp Auto Aiming Control Description
 AFS control unit controls the headl amp light axis height appropriately according to the vehicle height.
 AFS control unit detects the vehicle condition necessa ry for headlamp auto aiming control with the following
signals.
- Height sensor signals (front and rear)
- Vehicle speed signal (received from combination meter via CAN communication)
- Low beam status signal (received from IPDM E/R via CAN communication)
- Engine speed signal (received from ECM via CAN communication)
 When the operation conditions are satisfied, AFS cont rol unit transmits the aiming motor drive signal for
adjusting the headlamp axis height.
Headlamp auto aiming operation condition- Headlamp ON
- While the engine running
- Vehicle speed (Control mode is switched according to the driving condition.)
Headlamp Auto Aiming Operation
 AFS control unit calculates the vehicle pitch angle fr om the front and rear height sensor signal. AFS control
unit judges the angle for adjusting the axis gap from the preset position.
 AFS control unit controls the headlamp axis by c hanging the aiming motor drive signal output according to
the front and rear vehicle height when detecting the follo wing vehicle condition. Output is maintained if other
condition than following is detected.
- Engine starts.
- Headlamp is turned ON.
- Vehicle posture becomes stable after changing the v ehicle posture change is detected with the headlamp
ON and the vehicle stopped.
- Vehicle speed is maintained with the headlamp ON and the vehicle driven.
CAUTION:
Adjusted axis position may differ from the preset position although the headlamp auto aiming acti-
vates properly if the suspension is replaced or worn.
Revision: 2010 May2011 QX56

EXL-138
< REMOVAL AND INSTALLATION >[XENON TYPE]
REAR COMBINATION LAMP
REAR COMBINATION LAMP
Exploded ViewINFOID:0000000006369482
REMOVAL
DISASSEMBLY
Removal and InstallationINFOID:0000000006369483
CAUTION:
Disconnect the battery negative terminal or remove the fuse.
REMOVAL
1. Remove rear combination lamp finisher.
2. Remove rear combination lamp mounting bolts.
3. Pull rear combination lamp toward vehicle outside.
4. Disconnect rear combination lamp connector.
5. Remove rear combination lamp.
1. Rear combination lamp 2. Rear combination lamp finisher
:Pawl
JMLIA1118ZZ
1. Rear combination lamp 2. Rear turn signal bulb 3. Seal packing
4. Rear turn signal bulb socket 5. Rear combination lamp harness
JMLIA1119ZZ
Revision: 2010 May2011 QX56