Nissan Juke (2016 year). Service Repair Manual — part 621
TM-160
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
COMPONENT PARTS
• When pressure is applied to the ceramic device in the secondary pressure sensor, the ceramic device is
deformed, resulting in voltage change. TCM evaluates the secondary pressure from its voltage change. Volt-
age is increased along with pressure increase.
CVT CONTROL SYSTEM : Line Pressure Solenoid Valve
INFOID:0000000012200859
• The line pressure solenoid valve is installed to control valve.
• The line pressure solenoid valve controls the pressure regulator valve. For information about the pressure
regulator valve, refer to
TM-173, "MECHANICAL SYSTEM : Component Description"
• The line pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fact that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current. This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : Secondary Pressure Solenoid Valve
INFOID:0000000012200860
• The secondary pressure solenoid valve is installed to control valve.
• The secondary pressure solenoid valve controls the secondary valve. For information about the secondary
TM-173, "MECHANICAL SYSTEM : Component Description"
.
• The secondary pressure solenoid valve uses the linear solenoid valve [N/H (normal high) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fact that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current. This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/H (normal high) produces hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : Torque Converter Clutch Solenoid Valve
INFOID:0000000012200861
• The torque converter clutch solenoid valve is installed to control valve.
• The torque converter clutch solenoid valve controls the torque converter clutch control valve. For information
about the torque converter clutch control valve, refer to
TM-173, "MECHANICAL SYSTEM : Component
.
• The torque converter clutch solenoid valve utilizes a linear solenoid valve [N/L (normal low) type].
NOTE:
• The principle of the linear solenoid valve utilizes the fact that the force pressing on the valve spool installed
inside the coil increases nearly in proportion to the current. This allows it to produce a fluid pressure that is
proportional to this pressing force.
• The N/L (normal low) type does not produce hydraulic control when the coil is not energized.
CVT CONTROL SYSTEM : Lock-up Select Solenoid Valve
INFOID:0000000012200862
• The lock-up select solenoid valve is installed to control valve.
• The lock-up select solenoid valve controls the select switch valve. For information about the select switch
TM-173, "MECHANICAL SYSTEM : Component Description"
.
• The lock-up select solenoid valve utilizes an ON-OFF solenoid valve.
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2016 JUKE
COMPONENT PARTS
TM-161
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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NOTE:
• The only operations of the valve spool installed inside the coil are pressing or not pressing the ball which
seals the hydraulic supply section into the seat. This A/T uses N/L (normal low) type.
• When voltage is not applied to the coil, the force of the pilot pressure presses the ball against the seat,
stopping the pilot pressure at that point.
• When voltage is applied to the coil, the valve is pulled in the direction of the coil, disengaging the hydraulic
seal which the ball creates. This supplies pilot pressure to the operating locations.
CVT CONTROL SYSTEM : Step Motor
INFOID:0000000012200863
The step motor changes the step with turning 4 coils ON/OFF according to the signal from TCM. As a result,
the flow of line pressure to primary pulley is changed and pulley ratio is controlled.
CVT CONTROL SYSTEM : Manual Mode Switch
INFOID:0000000012200864
• The manual mode switch [mode select switch and position select switch (shift-up/shift-down)] is installed in
the CVT shift selector assembly.
• The mode select switch detects the position (the main shift gate side or manual shift gate side) of the selec-
tor lever and transmits a manual mode signal or a not manual mode signal to the combination meter. Then,
the TCM receives a manual mode signal or non-manual mode signal from the combination meter.
• The position select switch (shift-up) detects that the selector lever is shifted to the shift-up side of the manual
shift gate and transmits a manual mode shift up signal to the combination meter. Then, the TCM receives a
manual mode shift up signal from the combination meter.
• The position select switch (shift-down) detects that the selector lever is shifted to the shift-down side of the
manual shift gate and transmits a manual mode shift down signal to the combination meter. Then, the TCM
receives a manual mode shift down signal from the combination meter.
CVT CONTROL SYSTEM : CVT Indicator
INFOID:0000000012200865
• CVT indicator is positioned on the combination meter.
• CVT indicator turns on for a certain period of time when the ignition switch turns ON, and then turns OFF.
CVT CONTROL SYSTEM : Shift Position Indicator
INFOID:0000000012200866
TCM transmits shift position signal to combination meter via CAN communication. The actual shift position is
displayed on combination meter according to the signal.
CVT CONTROL SYSTEM : Manual Mode Indicator
INFOID:0000000012200867
• Manual mode indicator (A) is positioned on the combination meter.
• The manual mode indicator illuminates when the selector lever is
operated to the manual shift gate side. It also displays the gear
position (M1
⇔
M8) when the selector lever is operated to the +
side or – side. (Operates only during driving.)
• The manual mode indicator turns off when the selector lever is
operated to the main shift gate side.
Condition (status)
CVT indicator
Ignition switch OFF.
OFF
Ignition switch ON.
ON (Approx. 2sec.)
Condition (status)
Manual mode indicator
Selector lever is operated to the manual shift gate
side.
Display
Selector lever is operated to the + side or – side.
M1
⇔
M8
Selector lever is operated to the main shift gate side.
Nothing displayed.
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TM-162
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
COMPONENT PARTS
CVT CONTROL SYSTEM : Paddle Shifter
INFOID:0000000012200868
• The paddle shifter is installed to the steering column.
• The paddle shifter transmits shift up and shift down signals to com-
bination meter. Then TCM receives signals from the combination
meter via CAN communication.
SHIFT LOCK SYSTEM
SHIFT LOCK SYSTEM : Component Parts Location
INFOID:0000000012200869
SHIFT LOCK SYSTEM : Component Description
INFOID:0000000012200870
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1.
Shift lock release button cover*
2.
Shift lock solenoid
3.
Park position switch
4.
Stop lamp switch
A:
CVT shift selector assembly
B:
Brake pedal, upper
*: Shift lock release button becomes operative by removing shift lock cover.
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2016 JUKE
COMPONENT PARTS
TM-163
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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Component
Function
Shift lock solenoid
It operates according to the signal from the stop lamp switch and moves the lock lever.
Lock lever
• Rotates according to shift lock solenoid activation and releases the shift lock.
• If shift lock solenoid does not activate, lock lever can be rotated when shift lock release but-
ton is pressed and shift lock is released.
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
Forcibly releases the shift lock when pressed.
Stop lamp switch
• The stop lamp switch turns ON when the brake pedal is depressed.
• When the stop lamp switch turns ON, the shift lock solenoid is energized.
Revision: November 2015
2016 JUKE
TM-164
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
STRUCTURE AND OPERATION
TRANSAXLE
TRANSAXLE : Cross-Sectional View
INFOID:0000000012200871
1.
Converter housing
2.
Driven sprocket
3.
Chain
4.
Reverse brake
5.
Oil pump
6.
Forward clutch
7.
Planetary carrier
8.
Primary pulley
9.
Sun gear
10. Steel belt
11. Side cover
12. Internal gear
13. Parking gear
14. Secondary pulley
15. Final gear
16. Differential case
17. Idler gear
18. Reduction gear
19. Taper roller bearing
20. Output gear
21. Drive sprocket
22. Input shaft
23. Torque converter
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STRUCTURE AND OPERATION
TM-165
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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TRANSAXLE : Main Component Elements
INFOID:0000000012200872
TORQUE CONVERTER (WITH LOCK-UP FUNCTION)
In the same way as a conventional A/T, the torque converter is a system that increases the engine torque and
transmits the torque to the transaxle. A symmetrical 3-element, 1-stage, 2-phase type is used here.
OIL PUMP
Utilizes a vane-type oil pump that is driven by the engine through the oil pump drive chain in order to increase
efficiency of pump discharge volume in low-speed zone and optimize pump discharge volume in high-speed
zone. Discharged oil from oil pump is transmitted to control valve. It is used as the oil of primary and second-
ary pulley operation, the oil of clutch operation, and the lubricant for each part.
FORWARD/REVERSE SELECTION UNIT
• A planetary gear type of forward/reverse selector mechanism is installed between the torque converter and
primary pulley.
• The power from the torque converter is input via the input shaft, operating a wet multi-plate clutch by means
of hydraulic pressure to switch between forward and reverse driving.
FINAL DRIVE AND DIFFERENTIAL
The deceleration gears are composed of 2 stages: primary deceleration (output gear, idler gear pair) and sec-
ondary deceleration (reduction gear, final gear pair). All of these gears are helical gears.
The lubrication oil is the same as the fluid (Genuine CVT fluid) which lubricates the entire transaxle.
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2016 JUKE
TM-166
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
TRANSAXLE : Belt & Pulley
INFOID:0000000012200873
STRUCTURE
MECHANISM
It is composed of a pair of pulleys (the groove width is changed freely in the axial direction) and the steel belt
(the steel plates are placed continuously and the belt is guided with the multilayer steel rings on both sides).
The groove width changes according to wrapping radius of steel belt and pulley from low status to overdrive
status continuously with non-step. It is controlled with the oil pressures of primary pulley and secondary pulley.
STEEL BELT
It is composed of multiple steel plates (A) and two steel rings (B)
stacked to a several number. The feature of this steel belt transmits
power with compression of the steel plate in contrast with transmis-
sion of power in pulling with a rubber belt. Friction force is required
with the pulley slope to transmit power from the steel plate. The force
is generated with the following mechanism:
Oil pressure applies to the secondary pulley to nip the plate.
⇒
The
plate is pushed and extended outward.
⇒
The steel ring shows with-
stands.
⇒
Pulling force is generated on the steel ring.
⇒
The plate of
the primary pulley is nipped between the pulley.
⇒
Friction force is
generated between the steel belt and the pulley.
Therefore, responsibilities are divided by the steel plate that trans-
mits the power with compression and the steel ring that maintains necessary friction force. In this way, the
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STRUCTURE AND OPERATION
TM-167
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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tension of the steel ring is distributed on the entire surface and stress variation is limited, resulting in good
durability.
PULLEY
The primary pulley (input shaft side) and the secondary pulley (output shaft side) have the shaft with slope
(fixed cone surface), movable sheave (movable cone surface that can move in the axial direction) and oil pres-
sure chamber at the back of the movable sheave.
The movable sheave slides on the shaft to change the groove width of the pulley. Input signals of engine load
(accelerator pedal opening), primary pulley speed and secondary pulley speed change the operation pres-
sures of the primary pulley and the secondary pulley, and controls the pulley groove width.
FLUID COOLER & FLUID WARMER SYSTEM
FLUID COOLER & FLUID WARMER SYSTEM : System Description
INFOID:0000000012200874
CVT FLUID COOLER SCHEMATIC
JSDIA2429GB
Revision: November 2015
2016 JUKE
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