Nissan Juke (2014 year). Service Repair Manual — part 250
PRECAUTIONS
TM-145
< PRECAUTION >
[CVT: RE0F10B]
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Precautions for Removing of Battery Terminal
INFOID:0000000010197929
• When removing the 12V battery terminal, turn OFF the ignition
switch and wait at least 30 seconds.
NOTE:
ECU may be active for several tens of seconds after the ignition
switch is turned OFF. If the battery terminal is removed before ECU
stops, then a DTC detection error or ECU data corruption may
occur.
• For vehicles with the 2-batteries, be sure to connect the main bat-
tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be
detected.
• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.
NOTE:
The removal of 12V battery may cause a DTC detection error.
Precaution for On Board Diagnosis (OBD) System of CVT and Engine
INFOID:0000000009752490
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:
• Be sure to turn the ignition switch OFF and disconnect the battery cable from the negative terminal
before any repair or inspection work. The open/short circuit of related switches, sensors, solenoid
valves, etc. will cause the MIL to light up.
• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)
• Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MI to light up due to a short circuit.
• Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EVAP system or fuel injection system, etc.
• Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Precaution for TCM and Transaxle Assembly or Control Valve Replacement
INFOID:0000000009752491
CAUTION:
• To replace TCM, refer to
• To replace transaxle assembly, refer to
• To replace control valve, refer to
Removal and Installation Procedure for CVT Unit Connector
INFOID:0000000009752492
REMOVAL
Rotate bayonet ring (1) counterclockwise, pull out CVT unit harness
connector (2) upward and remove it.
INSTALLATION
SEF289H
SCIA6685J
Revision: 2013 October
2014 JUKE
TM-146
< PRECAUTION >
[CVT: RE0F10B]
PRECAUTIONS
1.
Align
∆
marking on CVT unit harness connector terminal body
with
marking on bayonet ring, insert CVT unit harness con-
nector, and then rotate bayonet ring clockwise.
2.
Rotate bayonet ring clockwise until
∆
marking on CVT unit har-
ness connector terminal body is aligned with the slit on bayonet
ring as shown in the figure (correctly fitting condition), install
CVT unit harness connector to CVT unit harness connector ter-
minal body.
CAUTION:
• Securely align
∆
marking on CVT unit harness connector
terminal body with bayonet ring slit. Then, be careful not
to make a half fit condition as shown in the figure.
• Never mistake the slit of bayonet ring for other dent por-
tion.
General Precautions
INFOID:0000000009752493
• Before connecting or disconnecting the TCM harness connec-
tor, turn ignition switch OFF and disconnect negative battery
cable. Because battery voltage is applied to TCM even if igni-
tion switch is turned OFF.
SCIA2097E
SCIA2098E
SCIA2099E
SEF289H
Revision: 2013 October
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PRECAUTIONS
TM-147
< PRECAUTION >
[CVT: RE0F10B]
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• When connecting or disconnecting pin connectors into or
from TCM, take care not to damage pin terminals (bend or
break).
When connecting pin connectors make sure that there are not
any bends or breaks on TCM pin terminal.
• Before replacing TCM, perform TCM input/output signal
inspection and make sure whether TCM functions properly or
not. Refer to
• After performing each TROUBLE DIAGNOSIS, perform “DTC
Confirmation Procedure”.
If the repair is completed the DTC should not be displayed in
the “DTC Confirmation Procedure”.
• Always use the specified brand of CVT fluid. Refer to
• Use lint-free paper, not cloth rags, during work.
• After replacing the CVT fluid, dispose of the waste oil using the
methods prescribed by law, ordinance, etc.
Service Notice or Precaution
INFOID:0000000009752494
OBD-II SELF-DIAGNOSIS
• CVT self-diagnosis is performed by the TCM in combination with the ECM. The results can be read through
the blinking pattern of the malfunction indicator lamp (MIL). Refer to the table on
for the indicator used to display each self-diagnostic result.
• The self-diagnostic results indicated by the MI are automatically stored in both the ECM and TCM memories.
Always perform the procedure on
TM-183, "Diagnosis Description"
to complete the repair and avoid
unnecessary blinking of the MIL.
For details of OBD-II, refer to
EC-60, "Diagnosis Description"
.
• Certain systems and components, especially those related to OBD-II, may use the new style slide-
locking type harness connector. For description and how to disconnect, refer to
SEF291H
MEF040DA
JSBIA1315ZZ
Revision: 2013 October
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TM-148
< PREPARATION >
[CVT: RE0F10B]
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
INFOID:0000000009752495
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tool
INFOID:0000000009752496
Tool number
(Kent-Moore No.)
Tool name
Description
—
(OTC3492)
Oil pressure gauge set
Measuring line pressure
1. ST25054000
(
—
)
Adapter
2. ST25055000
(
—
)
Adapter
Measuring line pressure
KV31103600
(J-45674)
Joint pipe adapter
(With ST25054000)
Measuring line pressure
KV38107900
(
—
)
Protector
a: 32 mm (1.26 in) dia.
Installing drive shaft
SCIA7531E
SCIA8372J
ZZA1227D
PDIA1183J
Revision: 2013 October
2014 JUKE
PREPARATION
TM-149
< PREPARATION >
[CVT: RE0F10B]
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Tool number
Tool name
Description
Power tool
Loosening nuts and bolts
Drift
a: 54 mm (2.13 in) dia.
b: 50 mm (1.97 in) dia.
• Installing differential side oil seal (transaxle
case side)
• Installing differential side oil seal (converter
housing side) (2WD)
Drift
a: 60 mm (2.36 in) dia.
Installing differential side oil seal (converter
housing side) (AWD)
Drift
a: 65 mm (2.13 in) dia.
b: 60 mm (1.97 in) dia.
Installing converter housing oil seal
PBIC0190E
NT115
SCIA5338E
NT115
Revision: 2013 October
2014 JUKE
TM-150
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
CVT CONTROL SYSTEM
CVT CONTROL SYSTEM : Component Parts Location
INFOID:0000000009752497
JSDIA5164GB
1.
Multi display unit (MDU)
*1
Refer to
.
2.
ABS actuator and electric unit (control
unit)
Refer to
3.
ECM
Refer to
SYSTEM :
Component Parts Location"
4.
(With Intelligent Key system),
PCS-37, "Component Parts Location"
(Without Intelligent Key system).
5.
SYSTEM : Component Parts Location"
(With Intelligent Key system),
"BODY CONTROL SYSTEM : Compo-
nent Parts Location"
(Without Intelli-
gent Key system)
6.
Combination meter
7.
Manual mode indicator
(On the combination meter)
8.
Shift position indicator
(On the combination meter)
9.
CVT indicator
(On the combination meter)
10.
Paddle shifter (shift-down switch)
*3
11.
Paddle shifter (shift-up switch)
*3
12.
Secondary speed sensor
13.
Control valve
*2
14.
CVT unit connector
15.
Primary speed sensor
Revision: 2013 October
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COMPONENT PARTS
TM-151
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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NOTE:
• The following components are included in control valve assembly (11).
- CVT fluid temperature sensor
- Secondary pressure sensor
- Line pressure solenoid valve
- Torque converter clutch solenoid valve
- Lock-up select solenoid valve
- Step motor
- ROM assembly
• The following components are included in manual mode switch (17).
- Mode select switch
- Select position switch
CVT CONTROL SYSTEM : Component Description
INFOID:0000000009752498
16.
Transmission range switch
17.
TCM
18.
Stop lamp switch
19.
Manual mode switch
A.
Transaxle assembly
B.
Engine room
C.
Brake pedal, upper
D.
CVT shift selector assembly
*1: With Integrated Control System
*2: Control valve is installed in transaxle assembly.
*3: NISMO RS models
Name
Function
TCM
TM-152, "CVT CONTROL SYSTEM : TCM"
Transmission range switch
TM-152, "CVT CONTROL SYSTEM : Transmission Range Switch"
Primary speed sensor
TM-152, "CVT CONTROL SYSTEM : Primary Speed Sensor"
Secondary speed sensor
TM-153, "CVT CONTROL SYSTEM : Secondary Speed Sensor"
CVT fluid temperature sensor
TM-153, "CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor"
Secondary pressure sensor
TM-154, "CVT CONTROL SYSTEM : Secondary Pressure Sensor"
Line pressure solenoid valve
TM-154, "CVT CONTROL SYSTEM : Line Pressure Solenoid Valve"
Secondary pressure solenoid valve
TM-154, "CVT CONTROL SYSTEM : Secondary Pressure Solenoid Valve"
Torque converter clutch solenoid valve
TM-155, "CVT CONTROL SYSTEM : Torque Converter Clutch Solenoid Valve"
Lock-up select solenoid valve
TM-155, "CVT CONTROL SYSTEM : Lock-up Select Solenoid Valve"
Step motor
TM-155, "CVT CONTROL SYSTEM : Step Motor"
Manual mode switch
TM-155, "CVT CONTROL SYSTEM : Manual Mode Switch"
Shift position indicator
TM-156, "CVT CONTROL SYSTEM : Shift Position Indicator"
Manual mode indicator
TM-156, "CVT CONTROL SYSTEM : Manual Mode Indicator"
Paddle shifter (shift-down switch)
*2
TM-156, "CVT CONTROL SYSTEM : Paddle Shifter"
Paddle shifter (shift-up switch)
*2
TM-156, "CVT CONTROL SYSTEM : Paddle Shifter"
Accelerator pedal position sensor
EC-20, "Accelerator Pedal Position Sensor"
Stop lamp switch
Revision: 2013 October
2014 JUKE
TM-152
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
COMPONENT PARTS
*1: With Integrated Control System
*2: NISMO RS models
CVT CONTROL SYSTEM : TCM
INFOID:0000000009752499
• The vehicle driving status is judged based on the signals from the sensors, switches, and other control units,
and the optimal transaxle control is performed.
• For TCM control items, refer to
TM-174, "CONTROL SYSTEM : System Description"
.
CVT CONTROL SYSTEM : Transmission Range Switch
INFOID:0000000009752500
• The transmission range switch is installed to upper part of transaxle case.
• The transmission range switch detects the selector lever position.
CVT CONTROL SYSTEM : Primary Speed Sensor
INFOID:0000000009752501
• The primary speed sensor is installed to front part of transaxle assembly.
• The primary speed sensor detects primary pulley speed.
ECM
• For purposes including improving the feeling when shifting speeds and preventing
drops in engine speed, control signals are exchanged between the ECM and TCM,
and real-time cooperative control is performed according to the vehicle driving condi-
tions. (Engine and CVT integrated control)
- Engine and CVT integrated control signal
NOTE:
General term for the communication (torque-down permission, torque-down request,
etc.) exchanged between the ECM and TCM.
• The TCM receives the following signal via CAN communications from the ECM for
judging the vehicle driving conditions.
- Engine speed signal
- Accelerator pedal position signal
- Closed throttle position signal
BCM
The TCM receives the following signal via CAN communications from the BCM for judg-
ing the vehicle driving conditions.
• Stop lamp switch signal
ABS actuator and electric unit (control unit)
The TCM receives the following signal via CAN communications from the ABS actuator
and electric unit (control unit) for judging the vehicle driving conditions.
• Vehicle speed signal (ABS)
• ABS operation signal
Combination meter
The TCM receives the following signal via CAN communications from the combination
meter for judging the driving request from the driver.
• Manual mode signal
• Non-manual mode signal
• Manual mode shift up signal
• Manual mode shift down signal
IPDM E/R
The TCM receives the following signal via CAN communications from the ABS actuator
and electric unit (control unit) for judging the vehicle driving conditions.
• A/C compressor feedback signal
MDU
*1
The TCM receives the following signals from MDU via CAN communication to switch
driving mode of the Integrated Control System.
• NORMAL mode signal
• ECO mode signal
• SPORT mode signal
Name
Function
Revision: 2013 October
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COMPONENT PARTS
TM-153
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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• The primary speed sensor generates the ON-OFF pulse (short waveform) in proportion to the rotating body
speed which is “The higher the rotating body speed is, the faster the change cycle is”. The TCM judges the
rotating speed from the changing cycle of this pulse signal.
CVT CONTROL SYSTEM : Secondary Speed Sensor
INFOID:0000000009752502
• The secondary speed sensor is installed to upper part of converter housing.
• The secondary speed sensor detects secondary pulley speed.
• The secondary speed sensor generates the ON-OFF pulse (short waveform) in proportion to the rotating
body speed which is “The higher the rotating body speed is, the faster the change cycle is”. The TCM judges
the rotating speed from the changing cycle of this pulse signal.
CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor
INFOID:0000000009752503
• The CVT fluid temperature sensor is installed to control valve.
• The CVT fluid temperature sensor detects CVT fluid temperature in oil pan.
JSDIA1824GB
JSDIA1824GB
Revision: 2013 October
2014 JUKE
TM-154
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
COMPONENT PARTS
• The fluid temperature sensor uses a thermistor, and changes the signal voltage by converting changes in the
CVT fluid temperature to a resistance value. TCM evaluates the CVT fluid temperature from the signal volt-
age value.
CVT CONTROL SYSTEM : Secondary Pressure Sensor
INFOID:0000000009752504
• The secondary pressure sensor is installed to control valve.
• The secondary pressure sensor detects the pressure applied to the secondary pulley.
• 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:0000000009752505
• 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-167, "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:0000000009752506
• The secondary pressure solenoid valve is installed to control valve.
JSDIA1825GB
JSDIA1831GB
Revision: 2013 October
2014 JUKE
COMPONENT PARTS
TM-155
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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• The secondary pressure solenoid valve controls the secondary valve. For information about the secondary
valve, refer to
TM-167, "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:0000000009752507
• 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-167, "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:0000000009752508
• 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
valve, refer to
TM-167, "MECHANICAL SYSTEM : Component Description"
.
• The lock-up select solenoid valve utilizes an ON-OFF solenoid valve.
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:0000000009752509
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:0000000009752510
• 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:0000000009752511
• 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.
Revision: 2013 October
2014 JUKE
TM-156
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
COMPONENT PARTS
CVT CONTROL SYSTEM : Shift Position Indicator
INFOID:0000000009752512
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:0000000009752513
• 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
⇔
M6) 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.
CVT CONTROL SYSTEM : Paddle Shifter
INFOID:0000000010202410
• 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
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
⇔
M6
Selector lever is operated to the main shift gate side.
Nothing displayed.
JSDIA2386ZZ
JSDIA4188ZZ
Revision: 2013 October
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COMPONENT PARTS
TM-157
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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SHIFT LOCK SYSTEM : Component Parts Location
INFOID:0000000009752514
SHIFT LOCK SYSTEM : Component Description
INFOID:0000000009752515
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.
JSDIA2337ZZ
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: 2013 October
2014 JUKE
TM-158
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
STRUCTURE AND OPERATION
TRANSAXLE
TRANSAXLE : Cross-Sectional View
INFOID:0000000009752516
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
JSDIA2389GB
Revision: 2013 October
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STRUCTURE AND OPERATION
TM-159
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
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TRANSAXLE : Main Component Elements
INFOID:0000000009752517
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.
JSDIA2426GB
JSDIA2427GB
Revision: 2013 October
2014 JUKE
TM-160
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
TRANSAXLE : Belt & Pulley
INFOID:0000000009752518
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
JSDIA2428GB
JSDIA2431ZZ
Revision: 2013 October
2014 JUKE
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