wheel INFINITI QX56 2006 Factory Service Manual

LT-158
ILLUMINATION
Revision: November 20092006 QX56

to combination meter terminal 8
With the ignition switch in the ON or START position, power is supplied

to ignition relay, located in the IPDM E/R, and

through 10A fuse (No. 59, located in the fuse and relay box)

to BCM terminal 38, and

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 24.
Ground is supplied

to BCM terminal 67 and

to combination meter terminal 17

through grounds M57, M61 and M79, and

to IPDM E/R terminals 38 and 59

through grounds E9, E15 and E24.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil, which, when
energized, directs power

through 10A fuse (No. 36, located in the IPDM E/R)

through IPDM E/R terminal 49

to illumination control switch terminal 1

to power liftgate switch terminal 3

to front room/map lamp assembly (console box illumination) terminal 7

to hazard switch terminal 3

to rear sonar system OFF switch terminal 3

to glove box lamp terminal 1

to display control unit terminal 14

to 4WD shift switch terminal 7 (with 4-wheel drive)

to front air control terminal 23

to rear power vent window switch terminal 5

to DVD player terminal 12 (with DVD entertainment system)

to NAVI control unit terminal 61

to pedal adjusting switch terminal 5

to electric brake (pre-wiring) terminal 4 (with trailer tow)

to front and rear heated seat switch LH and RH terminal 5

to A/T device terminal 11

to VDC OFF switch terminal 3

to tow mode switch terminal 3

to headlamp aiming switch terminal 3

to clock terminal 3, and

through 10A fuse (No. 37, located in the IPDM E/R)

through IPDM E/R terminal 57

to AV switch terminal 3

to audio unit terminal 8

to rear air control terminal 1 and

to rear audio remote control unit terminal 6.
Illumination is controlled

through illumination control switch terminal 2

to power liftgate switch terminal 4

ILLUMINATIONLT-159
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to front room/map lamp assembly (console box illumination) terminal 8

to AV switch terminal 4

to hazard switch terminal 4

to audio unit terminal 7

to rear sonar system OFF switch terminal 4

to 4WD switch terminal 8 (with 4-wheel drive)

to front air control terminal 24

to rear power vent window switch terminal 6

to DVD player terminal 10 (with DVD entertainment system)

to pedal adjusting switch terminal 6

to A/T device terminal 12

to front heated seat switch LH and RH terminal 6

to VDC OFF switch terminal 4

to tow mode switch terminal 4

to headlamp aiming switch terminal 4

to clock terminal 4 and

to combination meter terminal 18.
Ground is supplied

to illumination control switch terminal 3

to glove box lamp terminal 2

to display control unit terminal 3

to rear heated seat switches terminal 6

to electric brake (pre-wiring) terminal 1 (with trailer tow) and

to compass and thermometer terminal 7

through grounds M57, M61 and M79, and

to NAVI control unit terminal 1

to rear air control terminal 3 and

to rear audio remote control unit terminal 15

through grounds B117 and B132.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is acti-
vated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are
turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by the battery saver control, the illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionEKS00BBK
Refer to LAN-26, "CAN COMMUNICATION" .

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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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

GENERAL MAINTENANCEMA-5
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GENERAL MAINTENANCEPFP:00000
General MaintenanceELS001BI
General maintenance includes those items which should be checked during the normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating properly. The owner can perform these
checks and inspections or have their INFINITI dealers perform them.
OUTSIDE THE VEHICLE
The maintenance items listed here should be performed from time to time, unless otherwise specified.
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc. Item
Reference page
Tires Check the pressure with a gauge at least once a month and always prior to a
long distance trip. Adjust to the specified pressure if necessary. Check carefully
for damage, cuts or excessive wear. —
Wheel lug nuts When checking the tires, make sure no nuts are missing, and check for any
loose nuts. Tighten if necessary. WT-7, "
Rotation"
Windshield
Clean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary. —
Tire rotation Tires should be rotated every 12,000 km (7,500 miles). WT-7, "
Rotation"
Wheel alignment and
balanceIf the vehicle pulls to either side while driving on a straight and level road, or if
you detect uneven or abnormal tire wear, there may be a need for wheel align-
ment. If the steering wheel or seat vibrates at normal highway speeds, wheel
balancing may be needed. WT-6, "Balancing
Wheels", FSU-6, "Front
Wheel Alignment"
Windshield wiper
blades
Check for cracks or wear if they do not wipe properly.
—
Doors and engine
hood Check that all doors and the engine hood operate smoothly as well as the back
hatch. Also make sure that all latches lock securely. Lubricate if necessary.
Make sure that the secondary latch keeps the hood from opening when the pri-
mary latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently. MA-31, "
Lubricating
Locks, Hinges and Hood
Latches"
Lamps
Make sure that the head lamps, stop lamps, tail lamps, turn signal lamps, and
other lamps are all operating properly and installed securely. Also check head
lamp aim. Clean the head lamps on a regular basis. LT-29, "Aiming Adjust-
ment" for US, LT-46,
"Aiming Adjustment" for
Canada
Item Reference page
Warning lamps and
buzzers/chimes Make sure that all warning lamps and buzzers/chimes are operating properly.
DI-25, "
Electrical Com-
ponents Inspection"
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.
—
Windshield defroster Check that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner. —
Steering wheel Check that it has the specified play. Be sure to check for changes in the steering
condition, such as excessive play, hard steering or strange noises. PS-7, "
CHECKING
STEERING WHEEL
PLAY"
Seats
Check seat position controls such as seat adjusters, seat back recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every
position. Check that the head restraints move up and down smoothly and that
the locks (if equipped) hold securely in all latched positions. Check that the
latches lock securely for folding-down rear seat backs. —
Seat belts Check that all parts of the seat belt system (e.g. buckles, anchors, adjusters and
retractors) operate properly and smoothly and are installed securely. Check the
belt webbing for cuts, fraying, wear or damage. SB-11, "
Seat Belt
Inspection", MA-32,
"Checking Seat Belts,
Buckles, Retractors,
Anchors and Adjusters"
Accelerator pedal
Check the pedal for smooth operation. Keep the floor mats away from the pedal. —

MA-26
CHASSIS AND BODY MAINTENANCE
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2. Check the oil level as shown. Add the specified oil as necessary.
NOTE:
Rear final drive shown, front final drive similar
3. Install the filler plug and tighten to specification.
Changing Final Drive OilELS001C7
1. Remove the filler plug.
2. Remove the drain plug and drain the final drive oil.
3. Apply sealant to the drain plug threads.

Use High Performance Thread Sealant or equivalent. Refer to GI-46, "Recommended Chemical Prod-
ucts and Sealants" .
4. Install the drain plug and tighten to specification.
5. Refill the final drive with new specified oil.
6. Check the oil level.
NOTE:
Rear final drive shown, front final drive similar
7. Install the filler plug and tighten to specification.
Balancing WheelsELS001H4
REMOVAL
1. Using releasing agent, remove double-faced adhesive tape from the wheel. CAUTION:

Be careful not to scratch the wheel during removal.

After removing double-faced adhesive tape, wipe clean traces of releasing agent from the
wheel.
WHEEL BALANCE ADJUSTMENT

If a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting,
select and adjust a drive-in weight mode suitable for wheels.
1. Set wheel on wheel balancer using the center hole as a guide. Start the tire balance machine.
2. When inner and outer imbalance values are shown on the wheel balancer indicator, multiply outer imbal- ance value by 1.6 to determine balance weight that should be used. Select the outer balance weight withOil grade and viscosity : Refer to
MA-11, "
Fluids and
Lubricants" .
LLIA0068E
Filler plug : Refer to FFD-14, "COMPONENTS" (FFD), RFD-15, "COMPONENTS" (RFD).
Drain plug : Refer to FFD-14, "
COMPONENTS" (FFD), RFD-15, "COMPONENTS"
(RFD).
Oil grade and capacity : Refer to MA-11, "
Fluids and Lubricants" .
LLIA0068E
Filler plug : Refer to FFD-14, "COMPONENTS" (FFD), RFD-15, "COMPONENTS" (RFD).

CHASSIS AND BODY MAINTENANCEMA-27
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a value closest to the calculated value and install it to the designated outer position of, or at the desig-
nated angle in relation to the road wheel.
CAUTION:

Do not install the inner balance weight before installing the outer balance weight.

Before installing the balance weight, be sure to clean the mating surface of the wheel.
Indicated imbalance value × 5/3 = balance weight to be installed
Calculation example:
23 g (0.81 oz) × 5/3 = 38.33 g (1.35 oz) = 40 g (1.41 oz) balance
weight (closer to calculated balance weight value)
Note that balance weight value must be closer to the calculated
balance weight value.
Example:
37.4 g = 35 g (1.23 oz)
37.5 g = 40 g (1.41 oz)
a. Install balance weight in the position shown.
b. When installing balance weight to wheels, set it into the grooved area on the inner wall of the wheel as shown so that the balance
weight center is aligned with the wheel balancer indication posi-
tion (angle).
CAUTION:

Always use Genuine NISSAN adhesion balance weights.

Balance weights are not reusable; always replace with
new ones.

Do not install more than three sheets of balance weights.
c. If calculated balance weight value exceeds 50 g (1.76 oz), install two balance weight sheets in line with each other as shown.
CAUTION:
Do not install one balance weight sheet on top of another.
3. Start wheel balancer again.
4. Install drive-in balance weight on inner side of road wheel in the wheel balancer indication position (angle).
CAUTION:
Do not install more than two balance weights.
5. Start wheel balancer. Make sure that inner and outer residual imbalance values are 5 g (0.18 oz) each or below.
SMA054D
WDIA0060E
SMA056D

MA-28
CHASSIS AND BODY MAINTENANCE
Revision: November 20092006 QX56
Wheel Balance (Maximum Allowable Imbalance)

If either residual imbalance value exceeds 5 g (0.18 oz), repeat installation procedures.
Tire RotationELS001H5
1. Rotate the tires on each side from front to back as shown.
2. Adjust the tire pressure to specification. Refer to WT-38, "
Tire" .
3. After the tire rotation, retighten the wheel nuts after the vehicle has been driven for 1,000 km (600 miles), and also after a wheel
and tire have been installed such as after repairing a flat tire.
Checking Brake Fluid Level and LeaksELS001CA

Check the brake fluid level in the reservoir tank. It should be
between the “MAX ” and “MIN” lines on the reservoir tank.

If the fluid level is extremely low, check the brake system.

If the brake warning lamp comes on when the fluid is at the cor-
rect level, check the brake fluid level switch and the parking
brake switch.
Checking Brake Lines and CablesELS001CB
1. Check the brake lines and hoses for cracks, deterioration, and
other damage. Replace any damaged parts.
CAUTION:
If brake fluid leaks are visible around the brake line joints,
retighten the joint, or replace damaged parts as necessary.
2. Check for brake fluid leaks by fully depressing brake pedal while engine is running.
Checking Disc BrakeELS001CC
ROTOR
Check the rotor condition for wear or damage. Refer to BR-32,
"Front Disc Brake" , BR-33, "Rear Disc Brake" .
Maximum allowable imbalance Dynamic (At rim flange)
5 g (0.18 oz) (one side)
Static 10 g (0.35 oz)
Wheel nuts : Refer to WT-6, "WHEEL AND TIRE
ASSEMBLY" .
AMA159
WFIA0173E
SBR389C
SMA260A

MA-30
CHASSIS AND BODY MAINTENANCE
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CHECKING LINES

Check lines for improper attachment, leaks, cracks, damage,
loose connections, chafing, and deterioration.
Checking Axle and Suspension PartsELS001CF
FRONT AND REAR AXLE AND SUSPENSION PARTS
Check front and rear axle and suspension parts for excessive play, cracks, wear or other damage.

Shake each wheel to check for excessive play.

Rotate each wheel to check for abnormal noise.

Check the axle and suspension nuts and bolts for looseness.

Check the strut and shock absorber for oil leakage or other damage.

Check the suspension ball joints for grease leakage and ball joint dust cover for cracks or other damage.
DRIVE SHAFT
Check the boots and drive shaft for cracks, wear, damage, and
grease leakage.
SGIA0506E
SMA525A
SFA901

PARKING BRAKE SYSTEMPB-3
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PARKING BRAKE SYSTEMPFP:36010
On-Vehicle ServiceEFS0068J
PEDAL STROKE

When parking brake pedal is operated with the specified force, make sure the stroke is within the specified
number of notches. Check by listening and counting the ratchet clicks.
INSPECTION

Make sure the components are attached properly, checking for looseness or backlash.

Check parking brake pedal assembly for bends, damage and cracks, and replace if necessary.

Check cable for wear and damage, and replace if necessary.

Check parking brake warning lamp switch for malfunction, and replace if necessary. Refer to DI-32, "Wir-
ing Diagram — WARN —" .
ADJUSTMENT
1. Remove the lower instrument panel LH. Refer to IP-13, "INSTRUMENT LOWER COVER LH" .
2. Partially engage parking brake pedal to access adjusting nut.
3. Insert a deep socket wrench to rotate adjusting nut and loosen cable sufficiently. Then, disengage the parking brake pedal.
4. Remove the wheel and tire using power tool.
5. Remove the disc rotor and measure inner diameter at widest point using Tool.
6. Transfer measurement less 0.6 mm to the parking brake shoes and adjust accordingly.
7. Using wheel nuts, secure the disc to the hub to prevent it from tilting.
8. Rotate the disc rotor to make sure there is no drag.
9. Adjust cable as follows:
a. Operate pedal 10 or more times with a force of 490 N (50 kg-f, 110 lb-f).
b. Rotate adjusting nut with deep socket to adjust pedal stroke to specification.
c. With parking brake pedal completely disengaged, make sure there is no drag on the parking brake.
10. Install the disc rotor.
11. Install the wheel and tire using power tool.
12. Install the lower instrument panel LH. Refer to IP-13, "
INSTRU-
MENT LOWER COVER LH" .
Pedal stroke : 3
− 4 notches [under force of 196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0165E
Tool number : — (J-21177-A)
Pedal stroke : 3 − 4 notches [under force of
196 N (20.0 kg-f, 44.1 lb-f)]
WFIA0166E

PB-6
PARKING BRAKE SHOE
Revision: November 20092006 QX56
PARKING BRAKE SHOEPFP:44060
Removal and InstallationEFS0068M
COMPONENTS
REMOVAL
WARNING:
Clean the brakes with a vacuum dust collector to minimize the hazard of airborne particles or other
materials.
NOTE:
Remove the disc rotor only with the parking brake pedal completely disengaged.
1. Remove wheel hub and bearing assembly. Refer to FAX-5, "
Removal and Installation" .

Disconnect the wheel sensor at the harness connector. It is not necessary to remove the wheel sensor
from the wheel hub and bearing assembly.
2. Remove the return springs.
3. Remove the adjuster.
4. Remove the retainers, anti-rattle pins and shoes.
5. Disconnect the rear cable from the toggle lever.
6. Remove the back plate.
1. Back plate 2. Shoes 3. Toggle lever
4. Return springs 5. Retainers 6. Adjuster
7. Anti-rattle pins
WFIA0164E