2011 INFINITI QX56 seat adjustment

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CLIMATE CONTROLLED SEAT ACTIVATES
ONCE BUT STOPS IMMEDIATELY .............. ....
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SEATBACK BLOWER MOTOR ............................ ....96
SEATBACK BLOWER MOTOR : Description .........96
SEATBACK BLOWER MOTOR : Diagnosis Pro-
cedure .....................................................................
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SEAT CUSHION BLOWER MOTOR ..................... ....96
SEAT CUSHION BLOWER MOTOR : Description ....96
SEAT CUSHION BLOWER MOTOR : Diagnosis
Procedure ................................................................
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SEAT SWITCH INDICATOR IS NOT ILLUMI-
NATED IN HEAT OR COOL POSITION ............
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Diagnosis Procedure ........................................... ....98
SQUEAK AND RATTLE TROUBLE DIAG-
NOSES ...............................................................
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Work Flow ........................................................... ....99
Inspection Procedure ............................................101
Diagnostic Worksheet ...........................................103
REMOVAL AND INSTALLATION .............105
FRONT SEAT ................................................. ..105
Exploded View .................................................... ..105
Removal and Installation .......................................112
SEATBACK ........................................................... ..114
SEATBACK : Disassembly and Assembly ............114
SEAT CUSHION .................................................... ..115
SEAT CUSHION : Disassembly and Assembly ....116
CLIMATE CONTROLLED SEAT UNIT ................. ..117
CLIMATE CONTROLLED SEAT UNIT : Disas-
sembly and Assembly ...........................................
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HEADREST (WITH HEADREST DISPLAY ONLY) ..117
HEADREST (WITH HEADREST DISPLAY
ONLY) : Disassembly and Assembly ....................
117
SECOND SEAT ................................................120
Exploded View .................................................... ..120
Removal and Installation ..................................... ..125
SEATBACK ............................................................ ..126
SEATBACK : Disassembly and Assembly ............126
SEAT CUSHION .................................................... ..130
SEAT CUSHION : Disassembly and Assembly .....130
ARMREST .............................................................. ..133
ARMREST : Disassembly and Assembly ..............133
Adjustment .............................................................134
THIRD SEAT ...................................................137
Exploded View .......................................................137
Removal and Installation .......................................138
Disassembly and Assembly ...................................139
POWER SEAT SWITCH .................................141
Removal and Installation .......................................141
SECOND SEAT POWER UNLOCK SWITCH .142
Removal and Installation .......................................142
THIRD SEAT RECLINING SWITCH ...............143
Removal and Installation .......................................143
THIRD SEAT FOLD DOWN SWITCH .............144
Removal and Installation .......................................144
FRONT HEATED SEAT SWITCH ...................145
Removal and Installation .......................................145
SECOND HEATED SEAT SWITCH ................146
Removal and Installation .......................................146
CLIMATE CONTROLLED SEAT SWITCH .....147
Removal and Installation .......................................147
CLIMATE CONTROLLED SEAT BLOWER
FILTER ............................................................
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SEAT CUSHION .................................................... ..148
SEAT CUSHION : Removal and Installation .........148
SEATBACK ............................................................ ..148
SEATBACK : Removal and Installation .................148
Revision: 2010 May2011 QX56

SE-16
< SYSTEM DESCRIPTION >
SYSTEM
SYSTEM
POWER SEAT SYSTEM
POWER SEAT SYSTEM : System DescriptionINFOID:0000000006217370
Power seat switch can be operated regardless of the ignition switch position, because power supply is always
supplied to power seat switch.
SLIDING OPERATION
While operating the sliding switch located in power s eat switch, sliding motor operates and makes possible the
seat front and back position adjustment.
RECLINING OPERATION
While operating the reclining switch located in power seat switch, reclining motor operates and makes possi-
ble the seat back forward and backward position adjustment.
LIFTING OPERATION
While operating the lifting switch located in power seat switch, lifting motor operates and makes possible the
seat cushion up and down position adjustment.
LUMBAR SUPPORT SYSTEM
LUMBAR SUPPORT SYSTEM : System DescriptionINFOID:0000000006217371
 Lumbar support switch can be operated regardless of t he ignition switch position, because power supply is
always supplied to lumbar support switch.
 While operating the lumbar support switch, lumbar support motor operates which allows forward and back-
ward operation of seatback support.
SECOND SEAT POWER UNLOCK SYSTEM
SECOND SEAT POWER UNLOCK SY STEM : System DescriptionINFOID:0000000006217372
 Second seat power unlock switch can be operated regardl ess of the ignition switch position, because power
supply is always supplied to second seat power unlock switch and power unlock relay.
 Power unlock motor pulls seatback control wire, s eatback folds down, seat lock unlocks, and second seat
tilts up, when second seat power unlock switch is pressed.
THIRD SEAT SEATBACK POWER FOLDING SYSTEM
THIRD SEAT SEATBACK POWER FOLDIN G SYSTEM : System Description
INFOID:0000000006217373
 Third seat fold down switch and third seat reclini ng switch can be operated regardless of the ignition switch
position, because power supply is always supplied to thir d seat fold down switch, third seat reclining switch
and relays.
 Power folding motor operates and seatback reclining and third seat folding can be performed while third seat
fold down switch and third seat reclining switch are operated.
FRONT HEATED SEAT SYSTEM
FRONT HEATED SEAT SYSTEM : System DescriptionINFOID:0000000006217374
Heated seat is a system that operates when ignition switch is in ON position.
HEATER OPERATION
 While operating the heated seat switch, seat cushion heater and seat back heater operate.
 Temperature of seat can be adjust ed by operating on heated seat switch.
SECOND HEATED SEAT SYSTEM
SECOND HEATED SEAT SYSTEM : System DescriptionINFOID:0000000006217375
Heated seat is a system that operates when ignition switch is in ON position.
HEATER OPERATION
 While operating the heated seat switch, seat cushion heater and seat back heater operate.
Revision: 2010 May2011 QX56

SYSTEMSE-17
< SYSTEM DESCRIPTION >
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 Temperature of seat can be adjust ed by operating on heated seat switch.
CLIMATE CONTROLLED SEAT SYSTEM
CLIMATE CONTROLLED SEAT SYSTEM : System DiagramINFOID:0000000006217376
CLIMATE CONTROLLED SEAT S YSTEM : System DescriptionINFOID:0000000006217377
 The climate controlled seat system is controll ed by the climate controlled seat control unit.
 Operation of the climate controlled switch sends heat ed or cooled airflow and adjusts the seat temperature.
SEAT CUSHION AND SEATBACK TEMPERATURE ADJUSTMENT FUNCTION
 One thermal electric unit (TEU) unit is installed in each seat cushion and seatback. The unit heats or cools,
sends airflow to the seat surface, and adjusts the seat temperature.
 The thermal electric unit (TEU) is a heat exchanger that has a function to heat or cool the airflow from the
seat cushion blower motor and seatback blower motor. (By changing the direction of the current from the
power supply, the unit takes or gives heat, and adjusts exchange process depending on voltage.
CAUTION:
 The thermal electric unit (TEU) has a dual-climate fu nction that allows one side to operate at a high
temperature and the other to operate at a low temperature simultaneously.
 Before starting always turn OFF the switch and check that the electric unit is cold.
CLIMATE CONTROLLED SEAT SYSTEM : Fail-safeINFOID:0000000006217378
 Climate controlled seat control unit equips fail-safe function.
 When a malfunction occurs in the systems shown below , climate controlled seat control unit stops output.
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Revision: 2010 May2011 QX56

SE-94
< SYMPTOM DIAGNOSIS >
TEMPERATURE ADJUSTMENT IS IMPOSSIBLE
TEMPERATURE ADJUSTMENT IS IMPOSSIBLE
SEATBACK
SEATBACK : Diagnosis ProcedureINFOID:0000000006217413
1.CHECK CLIMATE CONTROLLED SEATBACK BLOWER FILTER
Check climate controlled seatback blower filter.
Refer to SE-91, "
SEATBACK BLOWER MOTOR : Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK CLIMATE CONTROLLED SEAT SWITCH
Check climate controlled seat switch.
Refer to SE-72, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CHECK SEATBACK THERMAL ELECTRIC UNIT SENSOR
Check seatback thermal electric unit sensor.
Refer to SE-81, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK SEATBACK THERMAL ELECTRIC UNIT
Check seatback thermal electric unit.
Refer to SE-75, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CHECK CLIMATE CONTROLLED SEATBACK BLOWER MOTOR
Check climate controlled seatback blower motor.
Refer to SE-83, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace the malfunctioning parts.
6.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
SEAT CUSHION
SEAT CUSHION : Diagnosis ProcedureINFOID:0000000006217414
1.CHECK CLIMATE CONTROLLED SEAT CUSHION BLOWER FILTER
Check climate controlled seat cushion blower filter.
Refer to SE-91, "
SEAT CUSHION BLOWER MOTOR : Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
Revision: 2010 May2011 QX56

TEMPERATURE ADJUSTMENT IS IMPOSSIBLESE-95
< SYMPTOM DIAGNOSIS >
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2.CHECK CLIMATE CONT ROLLED SEAT SWITCH
Check climate controlled seat switch.
Refer to SE-72, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CHECK SEAT CUSHION THERMAL ELECTRIC UNIT SENSOR
Check seat cushion thermal electric unit sensor.
Refer to SE-81, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace the malfunctioning parts.
4.CHECK SEAT CUSHION THERMAL ELECTRIC UNIT
Check seat cushion thermal electric unit.
Refer to SE-79, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace the malfunctioning parts.
5.CHECK CLIMATE CONTROLLED SEA T CUSHION BLOWER MOTOR
Check climate controlled seat cushion blower motor.
Refer to SE-86, "
ComponentFunctionCheck".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace the malfunctioning parts.
6.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
Revision: 2010 May2011 QX56

SE-96
< SYMPTOM DIAGNOSIS >
CLIMATE CONTROLLED SEAT ACTIVATES ONCE BUT STOPS IMMEDIATELY
CLIMATE CONTROLLED SEAT ACTIVATES ONCE BUT STOPS IMMEDI-
ATELY
SEATBACK BLOWER MOTOR
SEATBACK BLOWER MOTOR : DescriptionINFOID:0000000006217415
When turning climate controlled seat switch ON (COOL or HEAT), climate controlled seat activates once but
stops immediately.(Repeats the same operation when turn ing ignition switch OFF and turning ignition switch
ON again.)
SEATBACK BLOWER MOTO R : Diagnosis ProcedureINFOID:0000000006217416
1.CHECK FAIL-SAFE
Check fail-safe detecting conditions and repair cause of fail-safe status.
Refer to SE-21, "
Fail-safe".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK TEMPERTURE AD JUSTMENT FUNCTION
Check temperature adjustment func tion of climated controlled seat.
Refer to SE-94, "
SEATBACK : Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CONFIRM THE OPERATION
Confirm the operation again.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-40, "Intermittent Incident".
NO >> GO TO 1.
SEAT CUSHION BLOWER MOTOR
SEAT CUSHION BLOWER MOTOR : DescriptionINFOID:0000000006217417
When turning climate controlled seat switch ON (COOL or HEAT), climate controlled seat activates once but
stops immediately. (Repeats the same operation when turn ing ignition switch OFF and turning ignition switch
ON again.)
SEAT CUSHION BLOWER MO TOR : Diagnosis ProcedureINFOID:0000000006217418
1.CHECK FAIL-SAFE
Check fail-safe detecting conditions and repair cause of fail-safe status.
Refer to SE-21, "
Fail-safe".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace the malfunctioning parts.
2.CHECK TEMPERTURE AD JUSTMENT FUNCTION
Check temperature adjustment func tion of climated controlled seat.
Refer to SE-94, "
SEATBACK : Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace the malfunctioning parts.
3.CONFIRM THE OPERATION
Revision: 2010 May2011 QX56

SE-102
< SYMPTOM DIAGNOSIS >
SQUEAK AND RATTLE TROUBLE DIAGNOSES
Most of these incidents can be repaired by adjusting, securing or insulating the item(s) or component(s) caus-
ing the noise.
SUNROOF/HEADLINING
Noises in the sunroof/headlining area c an often be traced to one of the following:
1. Sunroof lid, rail, linkage or seals making a rattle or light knocking noise
2. Sunvisor shaft shaking in the holder
3. Front or rear windshield touching headlining and squeaking
Again, pressing on the components to stop the noise while duplicating the conditions can isolate most of these
incidents. Repairs usually consist of insulating with felt cloth tape.
SEATS
When isolating seat noise it's important to note the position the seats in and the load placed on the seat when
the noise occurs. These conditions should be duplicated when verifying and isolating the cause of the noise.
Cause of seat noise include:
1. Headrest rods and holder
2. A squeak between the seat pad cushion and frame
3. The rear seatback lock and bracket
These noises can be isolated by moving or pressing on the suspected components while duplicating the con-
ditions under which the noise occurs.Most of these incidents can be repaired by repositioning the component
or applying urethane tape to the contact area.
UNDERHOOD
Some interior noise may be caused by components under the hood or on the engine wall. The noise is then
transmitted into the passenger compartment.
Causes of transmitted underhood noise include:
1. Any component mounted to the engine wall
2. Components that pass through the engine wall
3. Engine wall mounts and connectors
4. Loose radiator mounting pins
5. Hood bumpers out of adjustment
6. Hood striker out of adjustment
These noises can be difficult to isolate since they cannot be reached from the interior of the vehicle. The best
method is to secure, move or insulate one component at a time and test drive the \
vehicle. Also, engine RPM
or load can be changed to isolate the noise. Repairs can usually be made by moving, adjusting, securing, or
insulating the component causing the noise.
Revision: 2010 May2011 QX56

SE-130
< REMOVAL AND INSTALLATION >
SECOND SEAT
1. Remove the reclining device outer cover (outside) and reclining device outer cover (inside).
Refer to SE-130, "
SEAT CUSHION : Disassembly and Assembly".
2. Remove the seatback control wire (A) and seat cushion
control wire (B).
3. Remove the reclining inner cover (outside).
4. Remove the mounting bolts and then remove seatback frame.
ASSEMBLY
Assemble in the reverse order of disassembly.
CAUTION:
 Install the hog rings of seat trim in position, and then securely connect the trim or trim cord with the
seat frame.
 Adjust the cable when installing the seatback control wire and seat cushion control wire.
Refer to SE-134, "
Adjustment".
SEAT CUSHION
SEAT CUSHION : Disa ssembly and AssemblyINFOID:0000000006217432
DISASSEMBLY
BENCH SEAT (LH SIDE)
1. Remove the seat cushion trim and seat cushion pad.
1. Remove the seat cushion retainer.
2. Move seat cushion so that harness connector (A) of seatcushion heater is visible. (heater seat model only)
3. Disconnect the seat cushion heater unit harness connector (A). (heater seat model only)
4. Remove the seat cushion trim and seat cushion pad from the seat cushion frame.
5. Remove the hog rings and separate the seat cushion trim and seat cushion pad.
2. Remove the reclining lever knob. Remove snap ring (1) downward using a hook and pick tool.
Remove reclining lever knob (2).
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Revision: 2010 May2011 QX56