2011 INFINITI QX56 lock

TM-14
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
COMPONENT PARTS
A/T CONTROL SYSTEM : Tow Mode Switch
INFOID:0000000006226756
 Tow mode switch is integrated in to
 Tow mode switch is integrated in to SNOW MODE /TOW MODE/VDC OFF switch assembly (2WD models)
or 4WD switch assembly (4WD models).
 When tow mode switch is pressed while tow mode indicator lamp on combination meter is OFF, the tow mode turns ON and tow mode indicator lamp turns ON.
 When tow mode switch is pressed while tow mode indicator lamp on combination meter is ON, the tow mode
turns OFF and tow mode indicator lamp turns OFF.
A/T CONTROL SYSTEM : A/ T CHECK Indicator LampINFOID:0000000006226757
A/T CHECK INDICATOR LAMP
Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
A/T CONTROL SYSTEM : Tow Mode Indicator LampINFOID:0000000006226758
TOW MODE INDICATOR LAMP
Turns ON when tow mode is switched to operational status (ON) by tow mode switch.
A/T CONTROL SYSTEM : Selector Lever Position IndicatorINFOID:0000000006226759
Indicates selector lever position.
A/T SHIFT LOCK SYSTEM
Condition (status) A/T CHECK indicator lamp
Ignition switch OFF OFF
For approx. 2 seconds after the ignition switch is turned ON ON
Approx. 2 seconds after ignition switch is turned ON OFF
A/T is malfunctioning OFF
Condition (status) Tow mode indicator lamp
Ignition switch OFF OFF
When ignition switch turns ON OFF
Press tow mode switch while tow mode indicator lamp is OFF. ON
Press tow mode switch while tow mode indicator lamp is ON. OFF
Revision: 2010 May2011 QX56

COMPONENT PARTSTM-15
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
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A/T SHIFT LOCK SYSTEM : Component Parts LocationINFOID:0000000006226760
A/T SHIFT LOCK SYSTEM : Component DescriptionINFOID:0000000006226761
1. Stop lamp switch
Refer to BRC-10, "
Component Parts
Location". 2. Shift lock cover * 3. Shift lock solenoid
4. Park position switch
A. Center console B. A/T shift selector assembly
*: Shift lock release button becomes operative by removing shift lock cover.
JSDIA1695GB
Component Function
Shift lock solenoid It operates according to the signal from the stop lamp switch and moves the lock lever.
Lock lever It moves according to the operation of the shift lock solenoid and performs the release of
the shift lock.
Detent rod It links with the selector button and restricts the selector lever movement.
Park position switch It detects that the selector lever is in “P” position.
Shift lock release button It moves the lock lever forcibly.
Revision: 2010 May2011 QX56

STRUCTURE AND OPERATIONTM-23
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
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Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“M1” Position
Name Front sun gear Front carrier Front internal gear
Condition — Output Input
Direction of rotation Counterc lockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Deceleration from front internal
gear Deceleration from front internal
gear Same number of revolution as the
input shaft
Name Under drive sun gear Under drive carrier Under drive internal gear
Condition — Fixed Input/Output
Direction of rotation Counterclockwi se revolution — Clockwise revolution
Number of revolutions Acceleration from under drive in-
ternal gear —
Same number of revolution as the
front carrier
Name Rear sun gear Rear carrier Rear internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from rear internal
gear Same number of revolution as the
under drive internal gear
Name Mid sun gear Mid carrier Mid internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from mid internal
gear Same number of revolution as the
rear carrier
Revision: 2010 May2011 QX56

TM-24
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
STRUCTURE AND OPERATION
 The 1st one-way clutch and the front brake regulate c
ounterclockwise rotation of the under drive carrier.
NOTE:
The front brake operates only while coasting.
 The 2nd one-way clutch and the high and low reverse clutch regulate counterclockwise rotation of the rear
sun gear.
NOTE:
The high and low reverse clutch operates only while coasting.
 The mid sun gear is fixed by the low brake.
JSDIA0867GB
Revision: 2010 May2011 QX56

STRUCTURE AND OPERATIONTM-25
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
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 Each planetary gear enters the state described below.
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“D2” Position
Name Front sun gear Front carrier Front internal gear
Condition — Output Input
Direction of rotation Counterc lockwise revolution Clockwise revolution Clockwise revolution
Number of revolutions Deceleration from front internal
gear Deceleration from front internal
gear Same number of revolution as the
input shaft
Name Under drive sun gear Under drive carrier Under drive internal gear
Condition — Fixed Input/Output
Direction of rotation Counterclockwi se revolution — Clockwise revolution
Number of revolutions Acceleration from under drive in-
ternal gear —Same number of revolution as the
front carrier
Name Rear sun gear Rear carrier Rear internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from rear internal
gear Same number of revolution as the
under drive internal gear
Name Mid sun gear Mid carrier Mid internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from mid internal
gear Same number of revolution as the
rear carrier
Revision: 2010 May2011 QX56

STRUCTURE AND OPERATIONTM-27
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
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EF
G H
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M A
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O P
Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“M2” Position
Name Front sun gear Front carrier Front internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from front internal
gear Same number of revolution as the
input shaft
Name Under drive sun gear Under drive carrier Under drive internal gear
Condition Fixed — Input/Output
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from under drive in-
ternal gear Same number of revolution as the
front carrier
Name Rear sun gear Rear carrier Rear internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from rear internal
gear Same number of revolution as the
under drive internal gear
Name Mid sun gear Mid carrier Mid internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from mid internal
gear Same number of revolution as the
rear carrier
Revision: 2010 May2011 QX56

TM-28
< SYSTEM DESCRIPTION >[7AT: RE7R01B]
STRUCTURE AND OPERATION
 The front sun gear and the under drive sun gear are fixed by the 2346 brake.
 The 2nd one-way clutch and the high and low reverse clutch regulate counterclockwise rotation of the rear
sun gear.
NOTE:
The high and low reverse clutch operates only while coasting.
 The mid sun gear is fixed by the low brake.
 Each planetary gear enters the state described below.
JSDIA0869GB
Revision: 2010 May2011 QX56

STRUCTURE AND OPERATIONTM-29
< SYSTEM DESCRIPTION > [7AT: RE7R01B]
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EF
G H
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M A
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Front planetary gear
Under drive planetary gear
Rear planetary gear
Mid planetary gear
“D3” and “M3” Positions
Name Front sun gear Front carrier Front internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from front internal
gear Same number of revolution as the
input shaft
Name Under drive sun gear Under drive carrier Under drive internal gear
Condition Fixed — Input/Output
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from under drive in-
ternal gear Same number of revolution as the
front carrier
Name Rear sun gear Rear carrier Rear internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from rear internal
gear Same number of revolution as the
under drive internal gear
Name Mid sun gear Mid carrier Mid internal gear
Condition Fixed Output Input
Direction of rotation — Clockwise revolution Clockwise revolution
Number of revolutions — Deceleration from mid internal gear Same number of revolution as the
rear carrier
Revision: 2010 May2011 QX56