change wheel INFINITI QX56 2004 Factory Owner's Manual

REAR SUSPENSION ASSEMBLY
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Revision: August 20072004 QX56
5. Push the vehicle slowly ahead to rotate the wheels 180°
degrees (a half turn).
If the wheels are rotated more than 180° degrees (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 RSU-47, "
Wheel Alignment" .
SFA234AC
LEIA0009E

SE-1
SEAT
I BODY
CONTENTS
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SECTION SE
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Revision: August 20072004 QX56 PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Work ................................................ 3
PREPARATION ........................................................... 4
Special Service Tool ................................................. 4
Commercial Service Tool ......................................... 4
SQUEAK AND RATTLE TROUBLE DIAGNOSES ..... 5
Work Flow ................................................................ 5
CUSTOMER INTERVIEW ..................................... 5
DUPLICATE THE NOISE AND TEST DRIVE ....... 6
CHECK RELATED SERVICE BULLETINS ........... 6
LOCATE THE NOISE AND IDENTIFY THE
ROOT CAUSE ...................................................... 6
REPAIR THE CAUSE ........................................... 6
CONFIRM THE REPAIR ....................................... 7
Generic Squeak and Rattle Troubleshooting ........... 7
INSTRUMENT PANEL .......................................... 7
CENTER CONSOLE ............................................. 7
DOORS ................................................................. 7
TRUNK .................................................................. 8
SUNROOF/HEADLINER ....................................... 8
OVERHEAD CONSOLE (FRONT AND REAR) ..... 8
SEATS .................................................................. 8
UNDERHOOD ....................................................... 8
Diagnostic Worksheet .............................................. 9
AUTOMATIC DRIVE POSITIONER ...........................11
Component Parts And Harness Connector Location
....11
Manual Operation ................................................... 12
Automatic Operation .............................................. 12
System Description ................................................ 12
FAIL-SAFE MODE .............................................. 13
CANCEL OF FAIL-SAFE MODE ......................... 13
MEMORY STORING AND KEYFOB INTER-
LOCK STORING ................................................. 14
MEMORY OPERATION ...................................... 15
ENTRY OPERATION .......................................... 15
EXITING OPERATION ........................................ 15KEYFOB INTERLOCK OPERATION .................. 16
CAN Communication System Description .............. 16
Schematic ............................................................... 17
Wiring Diagram — AUT/DP — ............................... 19
Terminals and Reference Values for BCM .............. 29
Terminals and Reference Values for Driver Seat
Control Unit ............................................................. 29
Terminals and Reference Values for Automatic
Drive Positioner Control Unit .................................. 31
Work Flow ............................................................... 33
Preliminary Check .................................................. 34
SETTING CHANGE FUNCTION ......................... 34
POWER SUPPLY AND GROUND CIRCUIT
INSPECTION ...................................................... 34
CONSULT-II Function (AUTO DRIVE POS.) .......... 37
CONSULT-II INSPECTION PROCEDURE .......... 37
SELF-DIAGNOSIS RESULTS ............................. 39
DATA MONITOR ................................................. 40
ACTIVE TEST ..................................................... 41
CAN Communication Inspection Using CONSULT-
II (Self-Diagnosis) ................................................... 41
Symptom Chart ....................................................... 41
Sliding Motor Circuit Inspection .............................. 43
Reclining Motor LH Circuit Inspection .................... 44
Lifting Motor (Front) Circuit Inspection ................... 46
Lifting Motor (Rear) Circuit Inspection .................... 47
Pedal Adjusting Motor Circuit Inspection ................ 49
Mirror Motor LH Circuit Check ................................ 50
Mirror Motor RH Circuit Check ............................... 52
Steering Wheel Tilt Circuit Inspection ..................... 53
Sliding Sensor Circuit Inspection ............................ 55
Reclining Sensor Circuit Inspection ........................ 56
Lifting Sensor (Front) Circuit Inspection ................. 57
Lifting Sensor (Rear) Circuit Inspection .................. 58
Pedal Adjusting Sensor Circuit Inspection .............. 59
Mirror Sensor LH Circuit Check .............................. 60
Mirror Sensor RH Circuit Check ............................. 62
Steering Wheel Tilt Sensor Circuit Inspection ........ 64
Sliding Switch Circuit Inspection ............................. 66
Reclining Switch Inspection .................................... 67

SE-2Revision: August 20072004 QX56 Lifting Switch (Front) Circuit Inspection .................. 69
Lifting Switch (Rear) Circuit Inspection ................... 70
Power Seat Switch Ground Inspection ................... 71
Pedal Adjusting Switch Circuit Inspection .............. 72
Door Mirror Switch (Changeover Switch) Circuit
Check ..................................................................... 74
Door Mirror Switch (Mirror Switch) Circuit Check ... 75
Door Mirror Switch Ground Circuit Inspection ........ 76
Seat Memory Switch Circuit Inspection .................. 77
Seat Memory Indicator Lamp Circuit Inspection ..... 79
Door Mirror Sensor Power Supply and Ground Cir-
cuit inspection ......................................................... 80
A/T Device (Detent Switch) Circuit Inspection ........ 81
Steering Wheel Tilt Switch Circuit Inspection ......... 82
Front Door Switch LH Circuit Inspection ................. 84
UART Communication Line Circuit Inspection ........ 85
Removal and Installation ........................................ 87
POWER SEAT ........................................................... 88
Wiring Diagram — SEAT — for Passenger Seat .... 88
HEATED SEAT .......................................................... 89Description ..............................................................89
Schematic ...............................................................90
Wiring Diagram — HSEAT — .................................91
FRONT SEAT ............................................................96
Components ............................................................96
Removal and Installation .........................................99
REMOVAL ............................................................99
INSTALLATION ....................................................99
Disassembly and Assembly ....................................99
SEATBACK TRIM AND PAD ...............................99
REMOVAL OF SEATBACK ASSEMBLY ........... 101
INSTALLATION OF SEATBACK ASSEMBLY ... 101
SEAT CUSHION TRIM AND PAD ...................... 101
REAR SEAT ............................................................. 103
Removal and Installation ....................................... 103
SECOND ROW OUTBOARD ............................ 103
SECOND ROW CENTER .................................. 103
THIRD ROW ...................................................... 103
Disassembly and Assembly .................................. 105

AUTOMATIC DRIVE POSITIONER
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Revision: August 20072004 QX56

The settings (ON/OFF) of the automatic sliding seat (Entry/Exiting operation) at entry/exit can be changed
as desired, using the display unit in the center of the instrument panel. The set content is transmitted by
CAN communication, from display control unit to driver seat control unit.

Using CONSULT-ll, the seat slide amount at entry/exit setting can be changed.
FAIL-SAFE MODE
When any manual and automatic operations are not performed, if any motor operations of seats or pedals are
detected for T2 or more, status is judged “Output error”.
CANCEL OF FAIL-SAFE MODE
The mode is cancelled when the selector lever is shifted to P position from any other position.
OPERATED PORTION T2
Seat sliding Approx. 0.1 sec.
Seat reclining Same as above
Seat lifting (Front) Same as above
Seat lifting (Rear) Same as above
Steering wheel Same as above
Pedal adjust Same as above

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
Preliminary CheckEIS002YF
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
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.
POWER SUPPLY AND GROUND CIRCUIT INSPECTION
1. CHECK BCM FUSE
Check if any of the following fuses for the BCM are blown.
NOTE:
Refer to SE-11, "
Component Parts And Harness Connector Location" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to SE-
11 , "Component Parts And Harness Connector Location" .
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.40 mm
—××
80 mm — —
150 mm — —
Sliding Front Seat and
Steering Wheel Raise
When Entry/ Exiting
VehicleThe seat sliding and steering
wheel raise turnout and return
at entry/exit can be selected:
ON (operated)–OFF (not
operated)ON ON: Indicator lamp ON —×
OFF OFF: Indicator lamp OFF×—
Reset custom settings* All settings to default. —Default: Setting button
ON——
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 oper-
ated.Blinking once
Unit Power source Fuse No.
BCMBattery power supplyf (50A)
ON or START power supply 59 (10A)
ACC or ON power supply 4 (10A)

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AUTOMATIC DRIVE POSITIONER
Revision: August 20072004 QX56
A part of seat system does not operate (both automati-
cally and manually).1. Sliding motor circuit inspection SE-43
2. Reclining motor circuit inspection SE-44
3. Lifting motor (front) circuit inspectionSE-46
4. Lifting motor (rear) circuit inspectionSE-47
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of pedal adjust and door mirror does not operate
(both automatically and manually).1. Pedal adjusting motor circuit inspectionSE-492. Mirror motor LH circuit check SE-50
3. Mirror motor RH circuit check SE-52
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-55
2. Reclining sensor circuit inspectionSE-56
3. Lifting sensor (front) circuit inspectionSE-57
4. Lifting sensor (rear) circuit inspectionSE-58
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of door mirror system does not operate (only
automatic operation).1. Mirror sensor LH circuit checkSE-602. Mirror sensor RH circuit checkSE-62
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. Park switch circuit inspectionSE-81
2. UART communication line circuit inspectionSE-85
3. Pedal adjusting sensor circuit inspectionSE-59
4. Steering wheel tilt sensor circuit inspectionSE-64
4. If all the above systems are normal, replace the auto-
matic drive positioner control unit.SE-11
A part of seat system does not operate (only manual
operation).1. Sliding switch circuit inspectionSE-66
2. Reclining switch circuit inspectionSE-67
3. Lifting switch (front) circuit inspectionSE-69
4. Lifting switch (rear) circuit inspectionSE-70
5. If the above systems are normal, replace the driver seat
control unitSE-11
A part of pedal adjust and door mirror does not operate
(only manual operation).1. Pedal adjusting switch circuit inspection SE-72
2. Door mirror switch (change over switch) circuit inspection SE-74
3. Door mirror switch (mirror switch) switching circuit
inspection SE-75
4. If the above systems are normal, replace the automatic
drive positioner control unitSE-11
Only memory switch operation.1. Seat memory switch circuit inspectionSE-772. If the above systems are normal, replace the driver seat
control unitSE-11
Seat memory indicator lamps 1 and 2 do not illuminate.1. Seat memory indicator lamp circuit inspectionSE-792. If all the above systems are normal, replace the driver
seat control unit.SE-11
SymptomDiagnoses / service procedure Refer to
page

AUTOMATIC DRIVE POSITIONER
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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.
NG >> Replace automatic drive positioner control unit.
Sliding Sensor Circuit InspectionEIS002YQ
1. CHECK FUNCTION
With CONSULT-II
Check operation with “SLIDE PULSE” on the DATA MONITOR to make sure the pulse changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check signal between driver seat control unit connector and
ground, with oscilloscope.
OK or NG
OK >> Sliding sensor circuit is OK.
NG >> GO TO 2.
ConnectorTe r m i n a l s
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M3435 (R)
GroundTilt switch ON
(UP operation)Battery voltage
Other than above 0
42 (V)Tilt 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 dis-
played
PIIA4558E
ConnectorTe r m i n a l s
(Wire color)
Condition Signal
(+) (–)
P2 24 (Y/G) GroundSliding
motor
operation
PIIA4556E
PIIA3277E

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Steering Wheel Tilt Sensor Circuit InspectionEIS0038M
1. CHECK FUNCTION
With CONSULT-II
Operate the pedal adjusting switch with “TILT SEN” on the DATA
MONITOR to make sure the voltage changes.
Without CONSULT-II
1. Turn ignition switch OFF.
2. Check voltage between automatic drive positioner connector
and ground.
OK or NG
OK >> Steering wheel tilt sensor circuit is OK.
NG >> GO TO 2.
Monitor item [OPERA-
TION or UNIT]Contents
TILT
SEN“V”The tilt position (voltage) judged from the tilt sensor sig-
nal is displayed.
PIIA0295E
ConnectorTerminals
(Wire color)
ConditionVoltage (V)
(Approx.)
(+) (–)
M33 7 (Y/BR) GroundPedal
front end position0.6
Pedal
back end position4.5
LIIA0485E