clock INFINITI QX56 2006 Factory Workshop Manual

EM-86Revision: November 2009
CYLINDER BLOCK
2006 QX56
15. Tighten connecting rod bolts using Tool.

Apply engine oil to threads and seats of connecting rod bolts.

After tightening bolts, make sure the crankshaft rotates
smoothly.

Check connecting rod side clearance. Refer to EM-94, "CON-
NECTING ROD SIDE CLEARANCE" .
16. Install knock sensors. CAUTION:
If knock sensor is dropped, replace it with a new one.

Make sure that there is no foreign material on the cylinder
block mating surface and the back surface of knock sensor.

Install it with its connector facing the center of the cylinder
block side.

Do not tighten knock sensor bolts while holding connector.

Make sure knock sensor does not interfere with other parts.

Position the sub-harness as shown before installing intake
manifold.
17. Installation of the remaining components is in the reverse order of removal.
18. Remove engine assembly from engine stand.
19. Install drive plate.

Align dowel pin of crankshaft rear end with pin holes of each
part to install. Tool number : KV10112100 (BT-8653-A)
Connecting rod bolts
Step 1
: 19.6 N·m (1.5 kg-m, 11 ft-lb)
Step 2 : 90° clockwise
WBIA0627E
KBIA2493E
KBIA2549E
KBIA2494E

FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLYFL-7
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Revision: November 2009 2006 QX56
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 RELEASE" .
4. Disconnect the battery negative terminal.
5. Remove the second row LH seat and the third row LH seat. Refer to SE-98, "
Second Row Outboard"
(second row), SE-105, "LH Side Seat" (third row).
6. Remove the second and third row rear seat belt buckles mounted on the floor. Refer to SB-3, "
SEAT
BELTS" .
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-35, "
BODY SIDE TRIM" .
8. Remove the second row rear center console and base, if equipped. Refer to EI-37, "
FLOOR TRIM" .
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

FL-12Revision: November 2009
FUEL TANK
2006 QX56
14. Remove the inspection hole cover by turning the retainers 90°
degrees clockwise.

Remove the O-ring.
15. Disconnect the fuel level sensor, fuel filter, and fuel pump assembly electrical connector, the EVAP hose, and the fuel feed
hose.
Disconnect the quick connector as follows:

Hold the sides of the connector, push in tabs and pull out the
tube.

If the connector and the tube are stuck together, push and pull
several times until they start to move. Then disconnect them
by pulling.
LBIA0382E
LBIA0383E
SFE562A

SQUEAK AND RATTLE TROUBLE DIAGNOSESGW-5
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Revision: November 2009 2006 QX56
SQUEAK AND RATTLE TROUBLE DIAGNOSESPFP:00000
Work FlowEIS004TN
CUSTOMER INTERVIEW
Interview the customer if possible, to determine the conditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any
customer's comments; refer to GW-9, "
Diagnostic Worksheet" . This information is necessary to duplicate the
conditions that exist when the noise occurs.

The customer may not be able to provide a detailed description or the location of the noise. Attempt to
obtain all the facts and conditions that exist when the noise occurs (or does not occur).

If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer
is concerned about. This can be accomplished by test driving the vehicle with the customer.

After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.

Squeak —(Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard sur-
faces = higher pitch noise/softer surfaces = lower pitch noises/edge to surface = chirping.

Creak —(Like walking on an old wooden floor)
Creak characteristics include firm contact/slow movement/twisting with a rotational movement/pitch
dependent on materials/often brought on by activity.

Rattle —(Like shaking a baby rattle)
Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.

Knock —(Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.

Tick —(Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.

Thump —(Heavy, muffled knock noise)
Thump characteristics include softer knock/dead sound often brought on by activity.

Buzz —(Like a bumble bee)
Buzz characteristics include high frequency rattle/firm contact.

Often the degree of acceptable noise level will vary depending upon the person. A noise that you may
judge as acceptable may be very irritating to the customer.

Weather conditions, especially humidity and temperature, may have a great effect on noise level.
SBT842

IDX-3
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ALPHABETICAL INDEX
Brake inspection ................................................
MA-28
Brake lines and cables inspection ..................... MA-28
Brake master cylinder ....................................... BR-15
Brake switch ...................................... EC-511, EC-523
BRK/SW - Wiring diagram ............................... EC-524
Bulb specifications ........................................... LT-175
Bumper, front ...................................................... EI-13
Bumper, rear ....................................................... EI-15
C
Cabin air filter .................................................... MA-21
Camshaft ........................................................... EM-46
Camshaft inspection .......................................... EM-50
Camshaft position sensor (PHASE) ................ EC-347
CAN - Wiring diagram EC-152, AT-96, AT-97, LAN-28,
LAN-39
, LAN-57, LAN-79, LAN-98
CAN communication EC-31, EC-151, EC-154, TF-113,
RSU-6
Canister-See EVAP canister ............................. EC-35
Center case (Transfer) ....................... TF-154, TF-167
CHARGE - Wiring diagram ............................... SC-18
Charging system ............................................... SC-17
Chassis and body maintenance ........................ MA-21
Chassis and body maintenanceSchedule 1 ........ MA-8
Chassis and body maintenanceSchedule 2 ...... MA-10
CHIME - Wiring diagram ..................................... DI-46
Circuit breaker ................................................... PG-17
Clock ................................................................... DI-71
CLOCK - Wiring diagram .................................... DI-71
Closed loop control ............................. EC-25, EC-470
Closed loop control (Bank 1) ........................... EC-470
Closed loop control (Bank 2) ........................... EC-470
Clutch drum (Transfer) ....................... TF-154, TF-167
Clutch pressure switch (Transfer) ...... TF-154, TF-167
Coil spring (front) ............................................. FSU-10
Collision diagnosis .......................................... SRS-60
Combination lamp, front, removal and installation . LT-
31
Combination lamp, rear, removal and installation .. LT-
125
Combination meter ................................................ DI-5
Combination switch .......................................... LT-100
COMBSW - Wiring diagram ............................. LT-100
COMM - Wiring diagram ................................... AV-97
COMPAS - Wiring diagram ................................. DI-27
Compass ............................................................. DI-26
Component Location (auto A/C) ...................... ATC-40
Compressor clutch removal and installation . ATC-176
Compressor mounting ................................... ATC-175
Compressor precaution ................................... ATC-11
Compressor special service tool ..................... ATC-14
Condenser ..................................................... ATC-182
Connecting rod .................................................. EM-96
Connecting rod bearing clearance .................... EM-96
Connecting rod bushing clearance .................... EM-96
Console box - See Instrument panel ................... IP-10
CONSULT for VDC ......................................... BRC-28
CONSULT-II for engine ................................... EC-114
Control units (terminal arrangement) ................. PG-71
Control valve (A/T) ............................................. AT-36
Control valve (Transfer) ...................... TF-154, TF-167
Converter housing installation ............ AT-245, AT-249
COOL/F - Wiring diagram ................................ EC-476
Coolant mixture ratio ......................................... MA-12
Coolant replacement ............................ CO-10, MA-13
Cooling circuit (engine) ........................................ CO-8
Cooling fan ........................................................ CO-17
Cooling fan control ........................................... EC-473
Cooling fan motor ............................................ EC-482
Cooling unit (A/C evaporator) ....... ATC-153, ATC-184
Corrosion protection ......................................... BL-165
Crankcase ventilation system - See Positive crankcase
ventilation .......................................................... EC-45
Crankshaft ......................................................... EM-79
Crankshaft position sensor (POS) ................... EC-340
Crash zone sensor .......................................... SRS-55
Cylinder block .................................................... EM-78
Cylinder block boring ......................................... EM-99
D
D/LOCK - Wiring diagram ................................... BL-19
Data link connector for Consult ......... EC-116, EC-128
Daytime light system .......................................... LT-33
Daytime running light - See Daytime light system .. LT-
33
DEF - Wiring diagram ....................................... GW-77
Diagnosis sensor unit ...................................... SRS-58
Diagnostic trouble code (DTC) for OBD system . EC-8,
EC-52
Diagnostic trouble code (DTC) inspection priority chart
EC-89
Differential carrier assembly ............................ RFD-15
Differential gear oil replacement ........................ MA-26
Dimensions ......................................................... GI-50
Direct clutch solenoid valve ................ AT-147, AT-149
Display and amp.assembly .............................. ATC-61
Display Control Unit ........................................... AV-86
Display Unit ....................................................... AV-86
Dome light - See Interior lamp .......................... LT-134
Door glass .......................................... GW-65, GW-68
Door lock .......................................................... BL-131
Door mirror lamp ............................................... LT-134
Door trim .............................................................. EI-32
Door, front ........................................... BL-128, GW-65
Door, rear ........................................... BL-128, GW-68
Drive belt ........................................................... EM-13
Drive chain (Transfer) ......................... TF-149, TF-176
Drive pinion diff. inspection .............................. RFD-18
Drive shaft (rear) ................................................ RAX-7
Driver air bag ................................................... SRS-46
DTC work support ............................................ EC-124
DTRL - Wiring diagram ....................................... LT-37
Duct and grilles .............................................. ATC-166
DVD - Wiring Diagram ....................................... AV-78
DVD Entertainment System ............................... AV-75
DVD Player ........................................................ AV-76

IP-4
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
SQUEAK AND RATTLE TROUBLE DIAGNOSISPFP:00000
Work FlowEIS004WZ
CUSTOMER INTERVIEW
Interview the customer, if possible, to determine the conditions that exist when the noise occurs. Use the Diag-
nostic Worksheet during the interview to document the facts and conditions when the noise occurs and any
customer's comments; refer to IP-8, "
Diagnostic Worksheet" . This information is necessary to duplicate the
conditions that exist when the noise occurs.

The customer may not be able to provide a detailed description or the location of the noise. Attempt to
obtain all the facts and conditions that exist when the noise occurs (or does not occur).

If there is more than one noise in the vehicle, be sure to diagnose and repair the noise that the customer
is concerned about. This can be accomplished by test driving the vehicle with the customer.

After identifying the type of noise, isolate the noise in terms of its characteristics. The noise characteristics
are provided so the customer, service adviser and technician are all speaking the same language when
defining the noise.
–Squeak — (Like tennis shoes on a clean floor)
Squeak characteristics include the light contact/fast movement/brought on by road conditions/hard sur-
faces = higher pitch noise/softer surfaces = lower pitch noises/edge to surface = chirping.
–Creak — (Like walking on an old wooden floor)
Creak characteristics include firm contact/slow movement/twisting with a rotational movement/pitch
dependent on materials/often brought on by activity.
–Rattle — (Like shaking a baby rattle)
Rattle characteristics include the fast repeated contact/vibration or similar movement/loose parts/missing
clip or fastener/incorrect clearance.
–Knock — (Like a knock on a door)
Knock characteristics include hollow sounding/sometimes repeating/often brought on by driver action.
–Tick — (Like a clock second hand)
Tick characteristics include gentle contacting of light materials/loose components/can be caused by driver
action or road conditions.
–Thump — (Heavy, muffled knock noise)
Thump characteristics include softer knock/dead sound often brought on by activity.
–Buzz — (Like a bumblebee)
Buzz characteristics include high frequency rattle/firm contact.

Often the degree of acceptable noise level will vary depending upon the person. A noise that you may
judge as acceptable may be very irritating to the customer.

Weather conditions, especially humidity and temperature, may have a great effect on noise level.
SBT842

INSTRUMENT PANEL ASSEMBLYIP-11
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Revision: November 2009 2006 QX56
REMOVAL
1. Remove center console. Refer to IP-17, "DISASSEMBLY AND ASSEMBLY" .
2. Remove instrument lower cover LH. Refer to IP-13, "
INSTRUMENT LOWER COVER LH" .
3. Remove steering column. Refer to PS-10, "
STEERING COLUMN" .
4. Remove glove box assembly. Refer to IP-14, "
Lower Instrument Panel RH and Glove Box" .
5. Remove front power socket LH. Refer to WW-54, "
Front Power Socket LH, Rear Cargo Power Socket" .
6. Remove front power socket RH. Refer to WW-54, "
Front Power Socket RH (For Cigarette Lighter), Con-
sole Power Socket" .
7. Remove combination meter. Refer to IP-14, "
Lower Instrument Panel RH and Glove Box" .
8. Remove audio unit. Refer to AV- 5 5 , "
AUDIO UNIT" .
9. Remove display unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
10. Remove lower knee protector LH.
11. Remove GPS antenna. Refer to AV- 1 6 7 , "
Removal and Installation" .
12. Remove optical sensor. Refer to LT- 6 4 , "
Optical Sensor" .
13. Remove side ventilator assembly LH.
14. Remove side ventilator assembly RH.
15. Remove front pillar finisher. Refer to EI-36, "
FRONT PILLAR FINISHER" .
16. Remove passenger air bag module. Refer to SRS-50, "
FRONT PASSENGER AIR BAG MODULE"
17. Remove instrument panel.
18. Disconnect remaining instrument panel assembly electrical connectors.
INSTALLATION
Installation is in the reverse order of removal.
1. Steering member brackets2. Bracket assembly LH3. Steering member assembly
4. Combination meter cover 5. Defrost grille6. Instrument panel speaker LH
7. Instrument panel 8. Bin mat9. Side ventilator assembly LH
10. Instrument lower cover LH 11. Lower knee protector LH12. Steering column cover upper
13. Steering column cover lower 14. Center console lower cover LH 15. Combination meter
16. Audio unit bracket LH 17. Driver instrument stay18. Audio unit
19. Passenger instrument stay 20. Display assembly21. Switch assembly
22. Cluster lid A 23. Cluster lid D ventilator LH24. Front passenger air bag status light
25. Power socket LH and power socket RH 26. Clock 27. Cluster lid C
28. Front air control 29. Audio control30. Hazard switch
31. Cluster lid D ventilator RH 32. Cluster lid D33. Glove box door
34. Glove box assembly 35. Lower instrument panel RH 36. Glove box striker
37. Rubber bumpers 38. Glove box damper39. Audio unit bracket RH
40. Center console lower cover RH 41. Fuse block cover 42. Side ventilator assembly RH
43. Instrument panel bracket 44. Instrument panel speaker RH 45. Bracket assembly RH
46. Key cylinder escutcheon 47. Instrument lower cover RH

HEADLAMP (FOR USA)LT-31
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Revision: November 2009 2006 QX56
HEADLAMP (INNER SIDE), FOR HIGH BEAM
Removal
1. Turn headlamp switch OFF.
2. Disconnect headlamp electrical connector.
3. Turn the bulb counterclockwise to remove it.
Installation
Installation is in the reverse order of removal.
FRONT PARKING LAMP (INNER OR OUTER)
Removal
1. Turn the bulb socket counterclockwise to unlock it.
2. Pull the bulb to remove it from the socket.
Installation
Installation is in the reverse order of removal.
SIDE MARKER LAMP (FRONT)
Removal
1. Position fender protector aside.
2. Turn the side marker lamp (front) bulb socket counterclockwise and remove side marker lamp (front) bulb
socket.
3. Pull to remove side marker lamp (front) from the side marker lamp (front) bulb socket.
Installation
Installation is in the reverse order of removal.
Removal and InstallationEKS00B8B
FRONT COMBINATION LAMP ASSEMBLY
CAUTION:

Disconnect battery negative terminal before touching xenon bulb or headlamp wiring harness
assembly.

Turn headlamp switch OFF before disconnecting headlamp harness connector.

Do not touch bulb by hand right after being turned off. Burning may result.

Do not touch the glass of bulb directly by hand. Keep grease and other oily substances away from
it.

Do not turn xenon bulb ON when xenon bulb is removed from front combination lamp assembly.

After installing the bulb, be sure to install the bulb socket securely to ensure watertightness.

Do not leave bulb out of front combination lamp assembly for a long time because dust, moisture,
smoke, etc. may affect the performance of the lamp. When replacing bulb, be sure to replace it
with a new one.
Removal
1. Disconnect battery negative terminal.
2. Disconnect front combination lamp assembly.
3. Remove front fascia. Refer to EI-13, "
FRONT BUMPER" .
4. Remove front combination lamp assembly bolts.
5. Remove front combination lamp assembly.
WKIA1860E

LT-32
HEADLAMP (FOR USA)
Revision: November 20092006 QX56
INSTALLATION
Installation is in the reverse order of removal.
Disassembly and AssemblyEKS00B8C
FRONT COMBINATION LAMP ASSEMBLY
DISASSEMBLY
1. Remove ballast.
2. Release xenon bulb retaining spring and remove xenon bulb.
3. Turn high beam bulb counterclockwise to unlock and remove high beam bulb.
4. Turn parking lamp bulb (inner) socket counterclockwise to unlock and remove parking lamp bulb.
5. Turn parking lamp bulb (outer) socket counterclockwise to unlock and remove parking lamp bulb.
6. Turn side marker lamp (front) bulb socket counterclockwise to unlock and remove side marker lamp (front)
bulb.
ASSEMBLY
Assembly is in the reverse order of disassembly.
WKIA1861E
1. Parking lamp bulb (outer) 2. Parking lamp bulb (inner), if equipped 3. Headlamp bulb (high beam)
4. Headlamp assembly 5. Xenon bulb (low beam) 6. Side marker lamp (front) bulb
7. Ballast 8. Wiring harness assembly

LT-64
AUTO LIGHT SYSTEM
Revision: November 20092006 QX56
Optical SensorEKS00B96
REMOVAL AND INSTALLATION
Removal
1. Remove defrost grille. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect the connector.
3. Turn the optical sensor counterclockwise to remove it from defroster grille.
Installation
Installation is in the reverse order of removal.
WKIA1061E