2007 INFINITI QX56 change wheel

MA-4
< SERVICE INFORMATION >
GENERAL MAINTENANCE
GENERAL MAINTENANCE
General MaintenanceINFOID:0000000003533859
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.
ItemReference page
TiresCheck 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 nutsWhen checking the tires, make sure no nuts are missing, and check for any loose
nuts. Tighten if necessary.WT-7, "
Rotation"
WindshieldClean the windshield on a regular basis. Check the windshield at least every six
months for cracks or other damage. Repair as necessary.—
Tire rotationTires 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 bal-
ancing may be needed.WT-6, "Balancing
Wheels", FSU-6, "Front
Wheel Alignment"
Windshield wiper
bladesCheck for cracks or wear if they do not wipe properly.
—
Doors and engine
hoodCheck 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 primary
latch is released.
When driving in areas using road salt or other corrosive materials, check lubri-
cation frequently.MA-30, "
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- 2 0 , "Aiming Adjust-
ment" for US, LT- 3 3 ,
"Aiming Adjustment" for
Canada
ItemReference page
Warning lamps and
buzzers/chimesMake sure that all warning lamps and buzzers/chimes are operating properly.DI-21, "
Electrical Com-
ponent Inspection"
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.—
Windshield defrosterCheck that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner.—
Steering wheelCheck 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, "
On-Vehicle In-
spection and Service"
SeatsCheck 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 po-
sition. 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 beltsCheck 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-10, "
Seat Belt Inspec-
tion", MA-30, "Checking
Seat Belts, Buckles, Re-
tractors, Anchors and
Adjusters"
Accelerator pedalCheck the pedal for smooth operation. Keep the floor mats away from the pedal. —

RSU-24
< SERVICE INFORMATION >
REAR SUSPENSION ASSEMBLY
• Check with the manufacturer of your specific alignment machine for their recommended Service/Cali-
bration Schedule.
THE ALIGNMENT PROCESS
IMPORTANT: Use only the alignment specifications listed in this Service Manual. Refer to FSU-19, "Wheel
Alignment (Unladen*1) *6" .
1. When displaying the alignment settings, many alignment machines use “indicators”: (Green/red, plus or
minus, Go/No Go). Do NOT use these indicators.
• The alignment specifications programmed into your alignment machine that operate these indicators
may not be correct.
• This may result in an ERROR.
2. Some newer alignment machines are equipped with an optional “Rolling Compensation” method to “com-
pensate” the sensors (alignment targets or head units). Do NOT use this “Rolling Compensation”
method.
• Use the “Jacking Compensation” method. After installing the alignment targets or head units, raise the
vehicle and rotate the wheels 1/2 turn both ways.
• See Instructions in the alignment machine you are using for more information.
CAMBER
1. Measure camber of both the right and left wheels with a suitable
alignment gauge and adjust as necessary to specification.
2. If outside of the specified value, adjust the camber using the
adjusting bolt in the front lower link.
CAUTION:
After adjusting the camber then check the toe-in.
NOTE:
Camber changes about 0° 5' with each graduation of the adjust-
ing bolt.
3. Tighten the adjusting bolt nuts to specification.
TOE-IN
1. Bounce the rear of the vehicle up and down two to three times to stabilize the vehicle height. Refer to
FSU-20, "
Wheelarch Height (Unladen*1)" .
2. Push the vehicle straight ahead about 5 m (16 ft).
3. Put a mark on the base line of the tread (rear side) of both of the
tires at the same height as the center of the hub. This will be the
measuring points.
4. Measure the distance “A” (rear side) across from tire to tire.Camber : Refer to FSU-19, "
Wheel Alignment (Unlad-
en*1) *6" .
SRA096A
LEIA0041E
SFA614B

REAR SUSPENSION ASSEMBLY
RSU-25
< SERVICE INFORMATION >
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5. Push the vehicle slowly ahead to rotate the wheels 180° (a half
turn).
If the wheels are rotated more than 180° (a half turn), then
repeat the above steps. Never push the vehicle backward.
6. Measure the distance “B” (front side) across from tire to tire.
7. If the toe-in is outside the specified value, adjust the toe-in using
the adjusting bolt in the rear lower link.
CAUTION:
Be sure to adjust equally on RH and LH sides using the
adjusting bolt.
NOTE:
Toe changes about 1.5 mm (0.059 in) [one side] with each grad-
uation of the adjusting bolt.
8. Tighten the adjusting bolt nuts to specification.Total toe-in : Refer to FSU-19, "
Wheel Alignment (Un-
laden*1) *6" .
SFA234AC
LEIA0009E

SE-1
BODY
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SECTION SE
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CONTENTS
SEAT
SERVICE INFORMATION ............................3
PRECAUTIONS ...................................................3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
3
Precaution for Work ..................................................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
AUTOMATIC DRIVE POSITIONER ...................11
Component Parts and Harness Connector Loca-
tion ..........................................................................
11
System Description .................................................11
CAN Communication System Description ...............13
Schematic ...............................................................13
Wiring Diagram - AUT/DP - .....................................15
Terminal and Reference Value for BCM .................24
Driver Seat Control Unit Harness Connector Ter-
minal Layout ............................................................
25
Terminal and Reference Value for Driver Seat
Control Unit .............................................................
25
Automatic Drive Positioner Control Unit Harness
Connector Terminal Layout .....................................
28
Terminal and Reference Value for Automatic
Drive Positioner Control Unit ...................................
28
Work Flow ...............................................................30
Preliminary Check ...................................................30
BCM Power Supply and Ground Circuit Inspection
....
31
Power Supply and Ground Circuit Inspection .........31
CONSULT-II Function (AUTO DRIVE POS.) ..........32
CAN Communication Inspection Using CON-
SULT-II (Self-Diagnosis) ..........................................
35
Symptom Chart ........................................................35
Sliding Motor Circuit Inspection ...............................37
Reclining Motor LH Circuit Inspection .....................38
Lifting Motor (Front) Circuit Inspection ....................39
Lifting Motor (Rear) Circuit Inspection .....................40
Pedal Adjusting Motor Circuit Inspection .................41
Mirror Motor LH Circuit Inspection ...........................42
Mirror Motor RH Circuit Inspection ..........................44
Steering Wheel Tilt Circuit Inspection ......................45
Sliding Sensor Circuit Inspection .............................46
Reclining Sensor Circuit Inspection .........................47
Lifting Sensor (Front) Circuit Inspection ..................48
Lifting Sensor (Rear) Circuit Inspection ...................49
Pedal Adjusting Sensor Circuit Inspection ...............50
Mirror Sensor LH Circuit Inspection .........................51
Mirror Sensor RH Circuit Inspection ........................53
Steering Wheel Tilt Sensor Circuit Inspection .........54
Sliding Switch Circuit Inspection ..............................55
Reclining Switch Inspection .....................................56
Lifting Switch (Front) Circuit Inspection ...................58
Lifting Switch (Rear) Circuit Inspection ....................59
Power Seat Switch Ground Inspection ....................60
Pedal Adjusting Switch Circuit Inspection ...............61
Door Mirror Remote Control Switch (Changeover
Switch) Circuit Inspection ........................................
62
Door Mirror Remote Control Switch (Mirror
Switch) Circuit Inspection ........................................
64
Door Mirror Remote Control Switch Ground Circuit
Inspection ................................................................
65
Seat Memory Switch Circuit Inspection ...................66
Seat Memory Indicator Lamp Circuit Inspection ......67
Door Mirror Sensor Power Supply and Ground
Circuit inspection .....................................................
69
A/T Device (Park Position Switch) Circuit Inspec-
tion ...........................................................................
69
Steering Wheel Tilt Switch Circuit Inspection ..........70
Front Door Switch LH Circuit Inspection ..................72
UART Communication Line Circuit Inspection ........73

SE-30
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
Work Flow
INFOID:0000000003533166
1. Check the symptom and customer's requests.
2. Understand the system description. Refer to SE-11, "
System Description".
3. Perform the preliminary check. Refer to SE-30, "
Preliminary Check" .
4. Check the self-diagnosis, results using CONSULT-II. Refer to SE-32, "
CONSULT-II Function (AUTO
DRIVE POS.)".
5. Repair or replace depending on the self-diagnostic results.
6. Based on the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to SE-35,
"Symptom Chart" .
7. Does the automatic drive positioner system operate normally?
If it is normal, GO TO 8.
If it is not normal, GO TO 3.
8. Inspection End.
Preliminary CheckINFOID:0000000003533167
SETTING CHANGE FUNCTION
The settings of the automatic driving positioner system can be changed, using CONSULT-II and the display in
the center of the instrument panel.
×: Applicable –: Not applicable
35 R Tilt motor UP signalADP steering switch in UP position Battery voltage
Other than above 0
37 GPedal adjust motor FORWARD
signalPedal adjust motor FORWARD op-
eration (Motor operated)Battery voltage
Other than above 0
39 L/B Battery power supply — Battery voltage
40 B/W Ground — 0
41 W/G Sensor ground — 0
42 V Tilt motor DOWN signalADP steering switch in DOWN posi-
tionBattery voltage
Other than above 0
45 RPedal adjust motor BACK-
WARD signalPedal adjust motor BACKWARD op-
eration (Motor operated)Battery voltage
Other than above 0
48 B Ground — 0 Te r m i n a l Wire Col-
orItem ConditionVoltage (V)
(Approx.)
Setting item ContentCONSULT–II
(WORK SUPPORT)Display unitDefault
settingFactory
setting
SEAT SLIDE
VOLUME SETThe distance at exiting opera-
tion can be selected from the
following 3 modes.40mm
—××
80mm — —
150mm — —
Sliding Front Seat and
Steering Wheel Raise
When Entry/ Exiting Ve-
hicleThe seat sliding and steering
wheel raise turnout and return
at entry/exit can be selected:
ON (operated)–OFF (not oper-
ated)ON ON: Indicator lamp ON —×
OFF OFF: Indicator lamp OFF×—
Reset custom settings* All settings to default. —Default: Setting button
ON——

AUTOMATIC DRIVE POSITIONER
SE-31
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It is possible to set sliding front seat for entry/exit of vehicle by pressing set switch.
*: Setting of sliding front seat for entry/exit of vehicle is ON at factory-shipment. But if custom settings are reset, setting turns OFF.
NOTE:
After the setting is registered, the new setting is effective, even if the battery is disconnected.
BCM Power Supply and Ground Circuit InspectionINFOID:0000000003533168
Refer to BCS-15, "BCM Power Supply and Ground Circuit Inspection".
Power Supply and Ground Circuit InspectionINFOID:0000000003533169
1.CHECK DRIVER SEAT CONTROL UNIT FUSES AND FUSIBLE LINK
Make sure any of the following fuses in the driver seat control unit and automatic drive positioner control unit
are not blown.
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK DRIVER SEAT CONTROL UNIT POWER SUPPLY CIRCUIT
1. Disconnect driver seat control unit.
2. Check voltage between driver seat control unit connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3.CHECK DRIVER SEAT CONTROL UNIT GROUND CIRCUIT
Content Setting change operation Indicator LEDs
The seat sliding and steering
wheel raise turnout and return
at entry/exit can be operated.
Press the set switch for more than 10 secondsBlinking twice
The seat sliding and steering
wheel raise turnout and return
at entry/exit can be not operat-
ed.Blinking once
Unit Power source Fuse No.
Driver seat control unit START power supply 2 (10A)
Driver seat control unit and automatic
drive positionercontrol unitBattery power supply 22 (15A)
Battery power supplyf (50A)
ConnectorTe r m i n a l s
Power
sourceConditionVoltage (V)
(Approx.)
(+) (-)
P333 GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
40 GroundBattery
power
supplyIgnition
switch
OFFBattery
voltage
P2 6 GroundSTART
power
supplyIgnition
switch
STARTBattery
voltage
PIIA4819E

SE-36
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
A part of seat system does not operate (both automatical-
ly and manually).1. Sliding motor circuit inspection SE-37
2. Reclining motor LH circuit inspection SE-38
3. Lifting motor (front) circuit inspectionSE-39
4. Lifting motor (rear) circuit inspectionSE-40
5. If the above systems are normal, replace the driver seat
control unit.SE-83
A part of pedal adjust and door mirror does not operate
(both automatically and manually).1. Pedal adjusting motor circuit inspectionSE-412. Mirror motor LH circuit check SE-42
3. Mirror motor RH circuit check SE-44
4. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
A part of seat system does not operate (only automatic
operation).1. Sliding sensor circuit inspectionSE-46
2. Reclining sensor circuit inspectionSE-47
3. Lifting sensor (front) circuit inspectionSE-48
4. Lifting sensor (rear) circuit inspectionSE-49
5. If the above systems are normal, replace the driver seat
control unit.SE-83
A part of door mirror system does not operate (only auto-
matic operation).1. Mirror sensor LH circuit checkSE-512. Mirror sensor RH circuit checkSE-53
3. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
All of the automatic operations do not operate.1.A/T device (park position switch) circuit inspectionSE-69
2. UART communication line circuit inspectionSE-73
3. Pedal adjusting sensor circuit inspectionSE-50
4. Steering wheel tilt sensor circuit inspectionSE-54
4. If all the above systems are normal, replace the automatic
drive positioner control unit.SE-11
A part of seat system does not operate (only manual op-
eration).1. Sliding switch circuit inspectionSE-55
2. Reclining switch circuit inspectionSE-56
3. Lifting switch (front) circuit inspectionSE-58
4. Lifting switch (rear) circuit inspectionSE-59
5. If the above systems are normal, replace the driver seat
control unit.SE-83
A part of pedal adjust and door mirror does not operate
(only manual operation).1. Pedal adjusting switch circuit inspection SE-61
2. Door mirror remote control switch (change over switch)
circuit inspection SE-62
3. Door mirror remote control switch (mirror switch) switch-
ing circuit inspection SE-64
4. If the above systems are normal, replace the automatic
drive positioner control unit.SE-11
Automatic drive positioner system does not operate (only
memory switch operation).1. Seat memory switch circuit inspectionSE-672. If the above systems are normal, replace the driver seat
control unit.SE-83
Seat memory indicator lamps 1 and 2 do not illuminate.1. Seat memory indicator lamp circuit inspectionSE-672. If all the above systems are normal, replace the driver seat
control unit.SE-83
Symptom Diagnoses / service procedure Refer to page

SE-46
< SERVICE INFORMATION >
AUTOMATIC DRIVE POSITIONER
1. Turn ignition switch OFF.
2. Disconnect automatic drive positioner control unit and steering
wheel tilt motor.
3. Check continuity between automatic drive positioner control unit
connector M34 terminals 35, 42 and steering wheel tilt motor
connector M68 terminals 1, 5.
4. Check continuity between automatic drive positioner control unit
connector M34 terminals 35, 42 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace harness.
4.CHECK AUTOMATIC DRIVE POSITIONER CONTROL UNIT OUTPUT SIGNAL
1. Connect the automatic drive positioner control unit connector
and steering wheel tilt motor.
2. Check voltage between automatic drive positioner control unit
connector and ground.
OK or NG
OK >> Replace steering wheel tilt motor. Refer to PS-9, "Removal and Installation".
NG >> Replace automatic drive positioner control unit.
Sliding Sensor Circuit InspectionINFOID:0000000003533181
1.CHECK FUNCTION
With CONSULT-II
Check operation with “SLIDE PULSE” on the DATA MONITOR to
make sure the pulse changes.
Without CONSULT-II35 - 1 : Continuity should exist.
42 - 5 : Continuity should exist.
35 - Ground : Continuity should not exist.
42 - Ground : Continuity should not exist.
LIIA1431E
ConnectorTe r m i n a l s
ConditionVoltage (V)
(Approx.)
(+) (-)
M3435
GroundTilt switch ON
(UP operation)Battery voltage
Other than above 0
42Tilt switch ON
(DOWN operation)Battery voltage
Other than above 0
LIIA0482E
Monitor item [OPERATION or UNIT] Contents
SLIDE PULSE —The seat sliding position (pulse) judged from
the sliding sensor signal is displayed
PIIA4558E