2009 INFINITI QX56 door lock

SQUEAK AND RATTLE TROUBLE DIAGNOSESDLK-221
< SYMPTOM DIAGNOSIS > [WITH INTELLIGENT KEY SYSTEM]
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Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit. Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Inspection ProcedureINFOID:0000000003775845
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noi se. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicon spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or ra ttle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation pr ocedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the ar eas with felt cloth tape or insulator foam blocks from
the Nissan Squeak and Rattle Kit (J-43980) to repair the noise.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid dampers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket
Revision: December 20092009 QX56

DOOR
DLK-235
< ON-VEHICLE REPAIR > [WITH INTELLIGENT KEY SYSTEM]
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1. Adjust the striker so that it becomes parallel with the lock inser- tion direction.
Removal and InstallationINFOID:0000000003775856
FRONT DOOR
Removal
CAUTION:
• When removing and instal ling the door assembly, support the door with a jack and shop cloth to pro-
tect the door and body.
• When removing and installing door assembly, be sure to carry out the fitting adjustment.
• Check the hinge rotating part for poor lubrication. If necessary, apply "body grease".
1. Remove the door window and module assembly. Refer to GW-15, "
Removal and Installation".
2. Remove the door harness.
3. Remove the check link cover.
4. Remove the check link bolt from the hinge pillar.
5. Remove the door-side hinge nuts and bolts, and remove the door assembly.
Installation
Installation is in the reverse order of removal.
REAR DOOR
Removal
CAUTION:
• When removing and instal ling the door assembly, support the door with a jack and shop cloth to pro-
tect the door and body.
• When removing and installing door assembly, be sure to carry out the fitting adjustment.
• Check the hinge rotating part for poor lubrication. If necessary, apply "body grease".
LIIA1502E
LIIA1503E
LIIA1504E
Revision: December 20092009 QX56

DLK-236
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
DOOR
1. Remove the door window and module assembly. Refer to
GW-19, "Removal and Installation".
2. Remove the door harness.
3. Remove the check link cover.
4. Remove the check link bolt from the hinge pillar.
5. Remove the door-side hinge nuts and bolts, and remove the door assembly.
Installation
Installation is in the reverse order of removal.
BACK DOOR
Removal
WARNING:
Always support back door when re moving or replacing back door stays. Power back door opener will
not support back door with back door stays removed.
1. Remove the back door glass. Refer to GW-13, "
Removal and Installation".
2. Remove the back door lock assembly. Refer to DLK-244, "
Door Lock Assembly".
3. Remove the rear wiper motor. Refer to WW-81, "
Rear Wiper Motor".
4. Remove the back door wire harness.
LIIA1503E
LIIA1504E
AWKIA1528GB
A. 15.2 Nm (1.6 Kg-m, 11 ft-lb) B. 17.0 Nm (1.7 Kg-m, 13 ft-lb)
Revision: December 20092009 QX56

DLK-238
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK
FRONT DOOR LOCK
Component StructureINFOID:0000000003775857
Removal and InstallationINFOID:0000000003775858
REMOVAL
1. Remove the front door window regulator. Refer to
GW-15, "Removal and Installation".
2. Remove the front door window rear glass run.
1. Door key cylinder assembly (Driver side) Outside handle escutcheon
(Passenger side) 2. Key cylinder assemb
ly (Driver side
only) 3. Rear gasket
4. Outside handle bracket 5. Grommet 6. Key cylinder rod (Driver side only)
7. Front door striker 8. Door lock assembly 9. Inside handle assembly
10. Inside door lock lever 11. Front gasket12. Outside handle assembly
ALKIA0898GB
Revision: December 20092009 QX56

FRONT DOOR LOCKDLK-239
< ON-VEHICLE REPAIR > [WITH INTELLIGENT KEY SYSTEM]
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3. Remove the door side grommet, and the bolt (TORX T30) from the grommet hole.
4. While pulling the outside handle (1), remove the door key cylin- der assembly (LH) (2) or outside handle escutcheon (RH) (2).
5. Separate the key cylinder rod from the door key cylinder assembly (if equipped).
6. While pulling the outside handle, slide it toward rear of vehicle to remove as shown.
7. Remove the front gasket (1) and rear gasket (2). Torx bolt
5.3 N·m (0.54 kg-m, 47 in-lb)
PIIA3553E
ALKIA0899ZZ
ALKIA0900ZZ
ALKIA0893ZZ
Revision: December 20092009 QX56

DLK-240
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
FRONT DOOR LOCK
8. Remove the TORX bolts (T30) (1), and separate the door lock
assembly (2) from the door.
9. While pulling the outside handle bracket, slide it toward the front of the vehicle to remove it and the door lock assembly as shown.
⇐ : Front
10. Disconnect the door lock actuator electrical connector.
11. Separate the outside handle cable connection (1) from the out- side handle bracket.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
To install the key cylinder rod, be sure to rotate the key cylinder rod holder until a click is felt.
Disassembly and AssemblyINFOID:0000000003775859
DOOR KEY CYLINDER ASSEMBLY
ALKIA0894ZZ
ALKIA0895ZZ
ALKIA0896ZZ
1. Door key cylinder assembly 2. Key cylinder assembly 3. Door key cylinder escutcheon
AWKIA1325ZZ
Revision: December 20092009 QX56

FRONT DOOR LOCKDLK-241
< ON-VEHICLE REPAIR > [WITH INTELLIGENT KEY SYSTEM]
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Release the door key cylinder escutcheon pawls to remove the door key cylinder.
Revision: December 20092009 QX56

DLK-242
< ON-VEHICLE REPAIR >[WITH INTELLIGENT KEY SYSTEM]
REAR DOOR LOCK
REAR DOOR LOCK
Component StructureINFOID:0000000003775860
Removal and InstallationINFOID:0000000005877754
REMOVAL
1. Remove the rear door finisher. Refer to
INT-11, "Removal and Installation".
2. Position aside the vapor barrier.
3. Remove door grommets, and remove outside handle nuts from grommet hole.
4. Remove outside handle and disconnect the cable.
5. Remove the door lock bolts, remove the door lock and disconnect the actuator connector.
INSTALLATION
Installation is in the reverse order of removal.
WIIA0892E
Revision: December 20092009 QX56