2007 INFINITI QX56 door lock

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
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If the noise can be duplicated easily during the test drive, to help identify the source of the noise, try to dupli-
cate the noise with the vehicle stopped by doing one or all of the following:
1) Close a door.
2) Tap or push/pull around the area where the noise appears to be coming from.
3) Rev the engine.
4) Use a floor jack to recreate vehicle “twist”.
5) At idle, apply engine load (electrical load, half-clutch on M/T model, drive position on A/T model).
6) Raise the vehicle on a hoist and hit a tire with a rubber hammer.
• Drive the vehicle and attempt to duplicate the conditions the customer states exist when the noise occurs.
• If it is difficult to duplicate the noise, drive the vehicle slowly on an undulating or rough road to stress the
vehicle body.
CHECK RELATED SERVICE BULLETINS
After verifying the customer concern or symptom, check ASIST for Technical Service Bulletins (TSBs) related
to that concern or symptom.
If a TSB relates to the symptom, follow the procedure to repair the noise.
LOCATE THE NOISE AND IDENTIFY THE ROOT CAUSE
1. Narrow down the noise to a general area.To help pinpoint the source of the noise, use a listening tool
(Chassis Ear: J-39570, Engine Ear: J-39565 and mechanic's stethoscope).
2. Narrow down the noise to a more specific area and identify the cause of the noise by:
• removing the components in the area that you suspect the noise is coming from.
Do not use too much force when removing clips and fasteners, otherwise clips and fasteners can be broken
or lost during the repair, resulting in the creation of new noise.
• tapping or pushing/pulling the component that you suspect is causing the noise.
Do not tap or push/pull the component with excessive force, otherwise the noise will be eliminated only tem-
porarily.
• feeling for a vibration with your hand by touching the component(s) that you suspect is (are) causing the
noise.
• placing a piece of paper between components that you suspect are causing the noise.
• looking for loose components and contact marks.
Refer to EI-6, "
Generic Squeak and Rattle Troubleshooting".
REPAIR THE CAUSE
• If the cause is a loose component, tighten the component securely.
• If the cause is insufficient clearance between components:
- separate components by repositioning or loosening and retightening the component, if possible.
- insulate components with a suitable insulator such as urethane pads, foam blocks, felt cloth tape or urethane
tape. A NISSAN Squeak and Rattle Kit (J-43980) is available through your authorized NISSAN Parts Depart-
ment.
CAUTION:
Do not use excessive force as many components are constructed of plastic and may be damaged.
Always check with the Parts Department for the latest parts information.
The following materials are contained in the NISSAN Squeak and Rattle Kit (J-43980). Each item can be
ordered separately as needed.
URETHANE PADS [1.5 mm (0.059 in) thick]
Insulates connectors, harness, etc.
76268-9E005: 100×135 mm (3.94×5.31 in)/76884-71L01: 60×85 mm (2.36×3.35 in)/76884-71L02: 15×25
mm (0.59×0.98 in)
INSULATOR (Foam blocks)
Insulates components from contact. Can be used to fill space behind a panel.
73982-9E000: 45 mm (1.77 in) thick, 50×50 mm (1.97×1.97 in)/73982-50Y00: 10 mm (0.39 in) thick,
50×50 mm (1.97×1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30×50 mm (1.18×1.97 in)
FELT CLOTH TAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15×25 mm (0.59×0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll. The following
materials not found in the kit can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.

EI-6
< SERVICE INFORMATION >
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
SILICONE GREASE
Used instead of UHMW tape that will be visible or not fit.
Note: 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.
Generic Squeak and Rattle TroubleshootingINFOID:0000000003533119
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 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 noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicone 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 rattle. 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 procedures 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 areas 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 bumpers 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

DOOR FINISHER
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DOOR FINISHER
Removal and InstallationINFOID:0000000003533135
Front Door
REMOVAL
1. Disconnect the negative battery cable.
2. Remove power window switch assembly.
• Disconnect harness connectors.
3. Remove pull handle cover.
• Remove screws behind pull handle cover.
4. Remove cap from pull handle escutcheon and remove screw.
5. Remove pull handle escutcheon.
• Remove screws behind pull handle escutcheon.
6. Remove armrest.
• Remove screw behind armrest.
7. Remove memory seat switch.
• Disconnect harness connector.
WIIA0965E
1. Power window switch assembly 2. Armrest 3. Front door finisher LH
4. Pull handle cover 5. Pull handle escutcheon 6. Cap
7. Door lock knob 8. Step lamp 9. Seat memory switch

EI-32
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DOOR FINISHER
8. Remove step lamp.
• Disconnect harness connector.
9. Remove door finisher and disconnect lock cable and handle cable from door handle assembly. Refer to
BL-110
.
10. Remove door lock knob.
INSTALLATION
Installation is in the reverse order of removal.
Rear Door
REMOVAL
1. Disconnect the negative battery cable.
2. Remove power window switch assembly.
• Disconnect harness connector.
3. Remove pull handle cover.
• Remove screws behind pull handle cover.
4. Remove cap from pull handle escutcheon and remove screw.
5. Remove pull handle escutcheon.
• Remove screws behind pull handle escutcheon.
WIIA0966E
1. Power window switch assembly 2. Armrest 3. Rear door finisher LH
4. Pull handle cover 5. Cap 6. Pull handle escutcheon
7. Door lock knob 8. Step lamp 9. Rear door tweeter

DOOR FINISHER
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6. Remove armrest.
• Remove screws behind armrest.
7. Remove step lamp.
• Disconnect harness connector.
8. Remove door finisher and disconnect lock cable and handle cable from door handle assembly. Refer to
BL-113
.
9. Remove door lock knob.
10. Remove rear door tweeter.
INSTALLATION
Installation is in the reverse order of removal.

FL-6
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FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
d. Disconnect the fuel filler hose from the fuel filler pipe.
e. Insert a suitable hose into the fuel tank through the fuel filler hose to drain the fuel from the fuel tank.
• As a guide, the fuel level reaches the fuel gauge position as shown, or less, when approximately 14
liters (3 3/4 US gal, 3 1/8 Imp gal) of fuel are drained from the fuel tank.
3. Release the fuel pressure from the fuel lines. Refer to EC-80, "
Fuel Pressure Check" .
4. Disconnect the battery negative terminal.
5. Remove the second row LH seat and the third row LH seat. Refer to SE-89, "
Removal and Installation"
(second row), SE-95, "LH Side Seat" (third row).
6. Remove the second and third row rear seat belt buckles mounted on the floor. Refer to SB-3
.
7. Remove the LH center pillar trim, the LH rear trim panel, and the LH rear side door kick plate and weather
stripping. Refer to EI-34
.
8. Remove the second row rear center console and base, if equipped. Refer to EI-36
.
9. Reposition the floor carpet out of the way to access the inspection hole cover, located under the center LH
rear seat.
10. Remove the inspection hole cover by turning the retainers 90°
degrees clockwise.
• Remove the O-ring.
11. Disconnect the fuel level sensor, fuel filter, and fuel pump
assembly electrical connector, the EVAP hose, and the fuel feed
hose.
LBIA0386E
LBIA0382E
LBIA0383E

FUEL TANK
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REMOVAL
WARNING:
Follow the “General Precautions” before working on the fuel system. Refer to GI-3, "
General Precau-
tion" .
1. Drain the fuel from the fuel tank, if necessary.
• Position the vehicle so it is level.
2. Remove the fuel filler cap to release the pressure from inside the fuel tank.
3. Check the fuel level on level gauge. If the fuel gauge indicates
more than the level as shown (full or almost full), drain the fuel
from the fuel tank until the fuel gauge indicates the level as
shown, or less.
• If the fuel pump does not operate, use the following procedure
to drain the fuel to the specified level after disconnecting the
fuel filler hose from the fuel filler pipe.
a. Insert a suitable hose of less than 15 mm (0.59 in) diameter into
the fuel filler pipe through the fuel filler opening to drain the fuel
from fuel filler pipe.
b. Insert a suitable hose into the fuel tank through the fuel filler
hose to drain the fuel from the fuel tank.
• As a guide, the fuel level reaches the fuel gauge position as shown, or less, when approximately 14
liters (3 3/4 US gal, 3 1/8 Imp gal) of fuel are drained from the fuel tank.
4. Remove the LH rear wheel and tire. Refer to WT-7, "
Rotation" .
5. Remove the four clips and remove the rear fender protector, front.
6. Disconnect the fuel filler hose from the fuel filler pipe and dis-
connect the vent hose quick connector.
7. Release the fuel pressure from the fuel lines. Refer to EC-80, "
Fuel Pressure Check" .
8. Disconnect the battery negative terminal.
9. Remove the second row LH seat and the third row LH seat. Refer to SE-89, "
Removal and Installation"
(second row), SE-95, "LH Side Seat" (third row).
10. Remove the second and third row rear seat belt buckles mounted on the floor. Refer to SB-3
.
11. Remove the LH center pillar trim, the LH rear trim panel, and the LH rear side door kick plate and weather
stripping. Refer to EI-34
.
12. Remove the second row rear center console and base. Refer to EI-36
.
13. Reposition the floor carpet out of the way to access the inspection hole cover, located under the center LH
rear seat.
14. Remove the inspection hole cover by turning the retainers 90°
degrees clockwise.
• Remove the O-ring.
WBIA0390E
LBIA0386E
LBIA0382E

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CONTENTS
GLASSES, WINDOW SYSTEM & MIRRORS
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
Handling for Adhesive and Primer ............................3
PREPARATION ...................................................4
Special Service Tool .................................................4
Commercial Service Tool ..........................................4
SQUEAK AND RATTLE TROUBLE DIAGNO-
SIS .......................................................................
5
Work Flow .................................................................5
Generic Squeak and Rattle Troubleshooting ............7
Diagnostic Worksheet ...............................................9
WINDSHIELD GLASS ........................................11
Removal and Installation .........................................11
REAR WINDOW GLASS AND MOLDING .........13
Removal and Installation .........................................13
POWER WINDOW SYSTEM ..............................15
Component Parts and Harness Connector Loca-
tion ..........................................................................
15
System Description .................................................15
CAN Communication System Description ...............18
Schematic ...............................................................19
Wiring Diagram - WINDOW- ...................................21
Main Power Window and Door Lock/Unlock
Switch Harness Connector Terminal Layout ...........
28
Terminal and Reference Value for Main Power
Window and Door Lock/Unlock Switch ...................
29
Power Window and Door Lock/Unlock Switch RH
Harness Connector Terminal Layout ......................
30
Terminal and Reference Value for Power Window
and Door Lock/Unlock Switch RH ...........................
30
Terminal and Reference Value for BCM .................31
Work Flow ...............................................................31
CONSULT-II Function (BCM) ..................................31
Trouble Diagnosis Symptom Chart ..........................32
BCM Power Supply and Ground Circuit Inspection
....
34
Main Power Window and Door Lock/Unlock
Switch Power Supply and Ground Circuit Inspec-
tion ...........................................................................
34
Power Window and Door Lock/Unlock Switch RH
Power Supply and Ground Circuit Inspection ..........
35
Front Power Window Motor LH Circuit Inspection ....36
Front Power Window Motor RH Circuit Inspection ....37
Limit Switch Circuit Inspection Front LH ..................37
Limit Switch Circuit Inspection Front RH .................38
Encoder Circuit Inspection Front LH ........................40
Encoder Circuit Inspection Front RH .......................41
Door Switch Check ..................................................43
Front Door Lock Assembly LH (Key Cylinder
Switch) Check ..........................................................
44
Power Window Serial Link Check Front LH and
RH ...........................................................................
46
Rear Power Window Control Unit LH or RH Power
Supply and Ground Circuit Inspection .....................
48
Rear Power Window Switch LH or RH Power Sup-
ply and Ground Circuit Inspection ...........................
49
Rear Power Window Motor LH Circuit Inspection ....50
Rear Power Window Motor RH Circuit Inspection ....50
Limit Switch Circuit Inspection Rear LH and RH .....51
Encoder Circuit Inspection Rear LH or RH ..............53
Power Window Serial Link Check Rear LH or RH ....54
Rear Power Vent Window Switch Circuit Inspec-
tion ...........................................................................
55
Rear Power Vent Window Motor LH Circuit In-
spection ...................................................................
55
Rear Power Vent Window Motor RH Circuit In-
spection ...................................................................
56
Rear Power Vent Window Relay (OPEN) Check ....56
Rear Power Vent Window Relay (CLOSE) Check ....57
FRONT DOOR GLASS AND REGULATOR .....59
Removal and Installation .........................................59
REAR DOOR GLASS AND REGULATOR .......62