2006 INFINITI QX56 power steering
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TOW TRUCK TOWINGGI-43
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Revision: November 2009 2006 QX56
TOW TRUCK TOWINGPFP:00000
Tow Truck TowingEAS001FY
WARNING:
Never get under the vehicle while it is supported only by the jack. Always use safety stands to
support the frame when you have to get under the vehicle.
Place wheel chocks at both front and back of the wheels on the ground.
CAUTION:
All applicable State or Provincial (in Canada) laws and local laws regarding the towing operation
must be obeyed.
It is necessary to use proper towing equipment to avoid possible damage during towing opera-
tion. Towing is in accordance with Towing Procedure Manual at dealer.
Always attach safety chains before towing.
When towing, make sure that the transmission, steering system and powertrain are in good order.
If any unit is damaged, dollies must be used.
Never tow an automatic transmission model from the rear
(i.e., backward) with four wheels on the ground as this may
cause serious and expensive damage to the transmission.
2WD MODELS
INFINITI does not recommend towing automatic transmission
equipped vehicles with the drive wheels on the ground.
CAUTION:
When towing with the front wheels on the ground: Turn the
ignition key to the OFF position and move the transmission
selector lever to N (neutral) position, turn the ignition key to
OFF position and secure the steering wheel in a straight
ahead position with a rope or similar device. Never place
the ignition key in the LOCK position. This will result in
damage to the steering lock mechanism.
WAIA0030E
WAIA0031E
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GW-16
POWER WINDOW SYSTEM
Revision: November 20092006 QX56
System DescriptionEIS005XO
Power is supplied at all time
from 50A fusible link (letter f , located in the fuse and fusible link box)
to BCM terminal 70
through BCM terminal 69
to main power window and door lock/unlock switch terminal 19
to power window and door lock/unlock switch RH terminal 10.
With ignition switch in ON or START position, power is supplied
through 10A fuse (No. 59, located in the fuse and relay box)
to BCM terminal 38
through BCM terminal 68
to main power window and door lock/unlock switch terminal 10.
to rear power vent window relays (OPEN and CLOSE) terminal 1.
With ignition switch in ON or START position, ground is supplied
to BCM terminal 67
to main power window and door lock/unlock switch terminal 17
to power window and door lock/unlock switch RH terminal 11
through body grounds M57, M61 and M79.
MANUAL OPERATION
Front Door LH
WINDOW UP
When the front LH switch in the main power window and door lock/unlock switch is pressed in the up position,
power is supplied
through main power window and door lock/unlock switch terminal 8
to front power window motor LH terminal 2.
Ground is supplied
through main power window and door lock/unlock switch terminal 11
to front power window motor LH terminal 1.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the front LH switch in the main power window and door lock/unlock switch is pressed in the down posi-
tion, power is supplied
through main power window and door lock/unlock switch terminal 11
to front power window motor LH terminal 1.
Ground is supplied
through main power window and door lock/unlock switch terminal 8
to front power window motor LH terminal 2.
Then, the motor lowers the window until the switch is released.
4. A. Steering column B. BCM M18, M19, M20
(View with instrument panel
removed) 5. A. Main power window and door
lock/unlock switch D7, D8
Power window and door lock/unlock
switch RH D105
B. Front door switch LH B8, RH
B108
C. Front power window motor LH
D9, RH D104
D. Front door lock actuator LH (key
cylinder switch) 6. A. Rear power window switch LH
D203, RH D303
B. Rear power window motor LH
D204, RH D304
7. A. Rear power vent window relay (CLOSE)
B. Rear power vent window relay
(OPEN) 8. Rear power vent window switch
R103 9. A. Rear power vent window motor
LH B52, RH B150
B. Condenser-3 B119
Condenser-4 B120
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IDX-6
ALPHABETICAL INDEX
Magnet clutch ............................... ATC-115, ATC-176
MAIN - Wiring diagram ...................... EC-145, AT-167
Main oil pump (Transfer) ..................... TF-154, TF-167
Mainshaft (Transfer) ........................... TF-154, TF-167
Maintenance (engine)Schedule 1 ....................... MA-7
Maintenance (engine)Schedule 2 ....................... MA-9
Major overhaul (Final drive) ............................. FFD-14
Major overhaul (Transfer) ................................ TF-146
Malfunction indicator lamp (MIL) ........................ EC-63
Map lamp .......................................................... LT-135
Mass air flow sensor (MAFS) ............. EC-171, EC-180
Meter ..................................................................... DI-5
METER - Wiring diagram .................................... DI-10
MIL data link connectors circuit ....................... EC-635
MIL/DL - Wiring diagram .................................. EC-635
MIRROR - Wiring diagram ................................ GW-93
Misfire .............................................................. EC-327
Mode door control linkage adjustment ............. ATC-66
Mode door motor ............................ ATC-64, ATC-161
Model variation ................................................... GI-47
Multiport fuel injection (MFI) system .................. EC-24
Multiport fuel injection precautions ....................... GI-6
Multi-remote control system - See Remote keyless entry
system ............................................................... BL-44
N
NATS - Wiring diagram .................................... BL-140
NAVI - Wiring diagram ....................................... AV-89
NAVI Control Unit .............................................. AV-86
Navigation system ............................................. AV-84
Neutral-4LO switch ............................................ TF-62
NONDTC - Wiring diagram .............................. AT-176
NVH troubleshooting (AX) ................................. FAX-4
NVH troubleshooting (EM) ................................ EM-10
NVH troubleshooting (Final drive) ..................... RFD-7
NVH troubleshooting (Propeller shaft) ................. PR-3
NVH troubleshooting (RAX) .............................. RAX-4
NVH troubleshooting (RSU) .............................. RSU-5
NVH troubleshooting (ST) .................................... PS-5
NVH troubleshooting (Transfer) ......................... TF-10
NVH troubleshooting (WT)NVH troubleshooting (WT) .
WT-4
NVIS (Nissan vehicle immobilizer system) precautions
GI-3
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O2H2B1 - Wiring diagram ................................ EC-165
O2H2B2 - Wiring diagram ................................ EC-167
O2S2B1 - Wiring diagram ... EC-256, EC-267, EC-280
O2S2B2 - Wiring diagram ... EC-258, EC-269, EC-282
Oil cooler (engine) ............................................. LU-11
Oil filter ............................................................... LU-10
Oil filter (Transfer) ............................................ TF-143
Oil pan (engine) ................................................ EM-24
Oil pressure (engine) ........................................... LU-7
Oil pressure relief valve (engine) ......................... LU-5
Oil pump (engine) .............................................. LU-13
Oil seal replacement (engine) ........................... EM-60
Oil seal replacement (front of final drive) FFD-8, RFD-9
Oil seal replacement (side of final drive) ......... RFD-11
On board diagnostic system ............................. EC-48
ORVR (On-board Refueling Vapor Recovery) .. EC-39
Overheat ......................................................... EC-473
P
P/SCKT - Wiring diagram ................................. WW-53
Pantograph jack .................................................. GI-41
Park/Neutral position switch ............................ EC-465
Parking brake control ........................................... PB-4
PCV (positive crankcase ventilation) ................ EC-45
Periodic maintenance ......................................... MA-7
Personal lamp .................................................. LT-135
PGC/V - Wiring diagram ................... EC-375, EC-383
PHASE - Wiring diagram ................................ EC-349
PHONE - Wiring diagram ................................... AV-67
Pinion bearing preload diff. ............................. RFD-26
Piston pin inspection ......................................... EM-94
Piston ring inspection ........................................ EM-95
Piston to bore clearance ................................... EM-99
Planetary carrier (Transfer) ................. TF-149, TF-176
PNP/SW - Wiring diagram ... EC-467, AT-105, AT-106
POS - Wiring diagram ..................................... EC-342
POWER - Wiring diagram ................................... PG-6
Power door lock ................................................. BL-16
Power seat ......................................................... SE-83
Power steering fluid level .................................. MA-29
Power steering gear ........................................... PS-15
Power steering oil pump .................................... PS-21
Power steering pressure (PSP) sensor ........... EC-448
Power steering system bleeding .......................... PS-6
Power supply routing .......................................... PG-4
Power window .................................................. GW-15
PRE/SE - Wiring diagram ................. EC-407, EC-413
Precautions (General) ........................................... GI-4
Precautions in repairing high strength steel ..... BL-190
Pressure switch 1 ............................... AT-145, AT-159
Pressure switch 2 ............................................. AT-157
Pressure switch 3 ............................... AT-141, AT-161
Pressure switch 5 ............................... AT-149, AT-163
Pressure switch 6 ............................... AT-153, AT-165
Pressure test (A/T) ............................................. AT-52
Propeller shaft ........................................... PR-4, PR-8
Propeller shaft inspection .................................. MA-25
Propeller shaft on vehicle service ....................... PR-8
Propeller shaft vibration ............................ PR-4, PR-8
PS/SEN - Wiring diagram ............................... EC-449
R
R/VIEW - Wiring diagram .................................... DI-76
Radiator ............................................................ CO-14
Rear Audio Remote Control Unit ......................... AV-8
Rear axle ........................................................... RAX-5
Rear bumper ....................................................... EI-15
Rear case (Transfer) ........................... TF-148, TF-181
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INSTRUMENT PANEL ASSEMBLYIP-11
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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
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INSTRUMENT PANEL ASSEMBLYIP-13
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Revision: November 2009 2006 QX56
4. Pull to disconnect cluster lid D clips.
5. Disconnect cluster lid electrical connectors.
Installation
Installation is in the reverse order of removal.
INSTRUMENT LOWER COVER LH
Removal
1. Remove instrument lower cover LH, using power tool.
2. Pull to disconnect instrument lower cover LH clips.
3. Disconnect instrument lower cover LH electrical connectors.
Installation
Installation is in the reverse order of removal.
COMBINATION METER
Removal
1. Disconnect battery negative terminal.
2. Remove instrument lower cover LH. Refer to IP-13, "
INSTRU-
MENT LOWER COVER LH" .
3. Remove steering column cover upper and steering column cover lower.
4. Remove combination meter cover.
5. Remove cluster lid A.
6. Disconnect cluster lid A electrical connectors.
7. Remove the combination meter screws, using power tool.
8. Disconnect combination meter electrical connectors.
Installation
Installation is in the reverse order of removal.
A/T FINISHER
Removal
1. Remove shift knob.
2. Remove storage compartment mask.
3. Pull to disconnect AT finisher clips.
4. Disconnect A/T finisher electrical connectors.
Installation
Installation is in the reverse order of removal.
LIIA1327E
LIIA1249E
LIIA1335E
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LT-126
TRAILER TOW
Revision: November 20092006 QX56
TRAILER TOWPFP:93020
Component Parts and Harness Connector LocationEKS00BB1
System DescriptionEKS00BB2
Power is supplied at all times
to ignition relay, located in the IPDM E/R (intelligent power distribution module engine room), and
through 50A fusible link (letter f , located in the fuse and fusible link box)
to BCM (body control module) terminal 70, and
through 10A fuse (No. 32, located in the IPDM E/R)
1. Fuse and fusible link box2. IPDM E/R fuse layout 3. Fuse and relay box
4. IPDM E/R E118, E119, E120, E121, E122, E123, E124 5. A. Steering column
B. Data link connector M22
C. BCM M18, M19, M20
(View with instrument lower panel
LH removed) 6. A. Trailer turn relay LH E156
B. Battery
C. Trailer tow relay 2 E140
D. Trailer turn relay RH E157
7. A. Trailer tow relay 1 M51 B. Electric brake (pre-wiring) M76
(View with instrument lower panel
LH removed) 8. Trailer connector C2
9. Combination switch (lighting switch)
M28
WKIA4616E
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MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
PREPARATION ...................................................... ..... 4
Special Service Tools .......................................... ..... 4
Commercial Service Tool .................................... ..... 4
GENERAL MAINTENANCE .................................. ..... 5
General Maintenance .......................................... ..... 5
PERIODIC MAINTENANCE .................................. ..... 7
Introduction of Periodic Maintenance .................. ..... 7
Maintenance For Off-road Driving (4WD only) .... ..... 7
Schedule 1 .......................................................... ..... 7
EMISSION CONTROL SYSTEM MAINTE-
NANCE ............................................................. ..... 7
CHASSIS AND BODY MAINTENANCE .......... ..... 8
Schedule 2 .......................................................... ..... 9
EMISSION CONTROL SYSTEM MAINTE-
NANCE ............................................................. ..... 9
CHASSIS AND BODY MAINTENANCE .......... ... 10
RECOMMENDED FLUIDS AND LUBRICANTS ... ....11
Fluids and Lubricants .......................................... .... 11
SAE Viscosity Number ........................................ ... 12
GASOLINE ENGINE OIL ................................. ... 12
ANTI-FREEZE COOLANT MIXTURE RATIO .. ... 12
ENGINE MAINTENANCE ...................................... ... 13
Checking Drive Belts ........................................... ... 13
DRIVE BELT TENSION ................................... ... 13
Changing Engine Coolant ................................... ... 13
DRAINING ENGINE COOLANT ...................... ... 13
REFILLING ENGINE COOLANT ..................... ... 14
FLUSHING COOLING SYSTEM ...................... ... 15
Checking Fuel Lines ............................................ ... 16
Changing Fuel Filter ............................................ ... 16
Changing Engine Air Cleaner Filter ..................... ... 16
VISCOUS PAPER TYPE .................................. ... 16
Changing Engine Oil ........................................... ... 17
Changing Oil Filter .............................................. ... 17
REMOVAL ........................................................ ... 17
INSTALLATION ................................................ ... 17INSPECTION AFTER INSTALLATION .............
... 18
Changing Spark Plugs ......................................... ... 18
REMOVAL ........................................................ ... 19
INSPECTION AFTER REMOVAL .................... ... 19
INSTALLATION ................................................ ... 19
Checking EVAP Vapor Lines ............................... ... 20
CHASSIS AND BODY MAINTENANCE ................ ... 21
Changing In-cabin Microfilter ............................... ... 21
Checking Exhaust System ................................... ... 22
Checking Automatic Transmission Fluid (ATF) .... ... 22
Changing Automatic Transmission Fluid (ATF) ... ... 24
Changing Transfer Fluid ...................................... ... 24
DRAINING ........................................................ ... 24
FILLING ............................................................ ... 25
Checking Transfer Fluid ...................................... ... 25
FLUID LEAKAGE AND FLUID LEVEL ............. ... 25
Checking Propeller Shaft ..................................... ... 25
Checking Final Drive Oil ...................................... ... 25
Changing Final Drive Oil ...................................... ... 26
Balancing Wheels ................................................ ... 26
REMOVAL ........................................................ ... 26
WHEEL BALANCE ADJUSTMENT .................. ... 26
Tire Rotation ........................................................ ... 28
Checking Brake Fluid Level and Leaks ............... ... 28
Checking Brake Lines and Cables ...................... ... 28
Checking Disc Brake ........................................... ... 28
ROTOR ............................................................. ... 28
CALIPER .......................................................... ... 29
PAD .................................................................. ... 29
Checking Steering Gear and Linkage .................. ... 29
STEERING GEAR ............................................... 29
STEERING LINKAGE ......................................... 29
Checking Power Steering Fluid and Lines ........... ... 29
CHECKING FLUID LEVEL ............................... ... 29
CHECKING LINES ........................................... ... 30
Checking Axle and Suspension Parts ................. ... 30
FRONT AND REAR AXLE AND SUSPENSION
PARTS .............................................................. ... 30
DRIVE SHAFT .................................................. ... 30
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MA-6
GENERAL MAINTENANCE
Revision: November 20092006 QX56
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel).Brakes
Check that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
booster Check the pedal for smooth operation and make sure it has the proper distance
under it when depressed fully. Check the brake booster function. Keep the floor
mats away from the pedal. ACC-5, "
ADJUSTABLE
ACCELERATOR
PEDAL",
BR-17, "On-
Vehicle Service"
Parking brake Check that the parking brake control has the proper travel and make sure that
the vehicle is held securely on a fairly steep hill when only the parking brake is
applied. PB-9, "Parking Brake
Control"
Automatic transmis-
sion “Park” mecha-
nismOn a fairly steep hill check that the vehicle is held securely with the selector
lever in the P position without applying the brakes.
—
Item
Reference page
Item Reference page
Windshield washer
fluid Check that there is adequate fluid in the tank.
—
Engine coolant level Check the coolant level when the engine is cold. —
Radiator and hoses Check the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation,
deterioration or loose connections. —
Brake fluid level Make sure that the brake fluid level is between the “MAX ” and “ MIN” lines on the
reservoirs MA-28
Battery
Check the fluid level in each cell. It should be between the “MAX ” and “MIN ”
lines. Vehicles operated in high temperatures or under severe conditions require
frequent checks of the battery fluid level. —
Engine drive belt Make sure that no belt is frayed, worn, cracked or oily. MA-13
Engine oil levelCheck the level on the dipstick after parking the vehicle on a level spot and turn-
ing off the engine. —
Power steering fluid
level and lines Check the level on the reservoir with the engine off. Check the lines for improper
attachment, leaks, cracks, etc.
MA-29
Automatic transmis-
sion fluid levelCheck the level on the dipstick after putting the selector lever in
“P ” with the
engine idling. MA-22
Exhaust system
Make sure there are no loose supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell of exhaust fumes, immediately locate
the trouble and correct it. MA-22
Underbody
The underbody is frequently exposed to corrosive substances such as those
used on icy roads or to control dust. It is very important to remove these sub-
stances, otherwise rust will form on the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter, the underbody should be thoroughly
flushed with plain water, being careful to clean those areas where mud and dirt
can easily accumulate. —
Fluid leaks Check under the vehicle for fuel, oil, water or other fluid leaks after the vehicle
has been parked for a while. Water dripping from the air conditioner after use is
normal. If you should notice any leaks or gasoline fumes are evident, check for
the cause and correct it immediately. —