Nissan Juke F15. Manual — part 1246
TM-174
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
STRUCTURE AND OPERATION
Primary pulley
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.
Secondary pulley
Steel belt
Manual shaft
When the manual shaft is in the P position, the parking rod that is linked to the manual shaft rotates the
parking pole. When the parking pole rotates, it engages with the parking gear, fixing the parking gear.
As a result, the secondary pulley that is integrated with the parking gear is fixed.
Parking rod
Parking pawl
Parking gear
Output gear
The deceleration gears are composed of 2 stages: primary deceleration (output gear, idler gear pair) and
secondary deceleration (reduction gear, final gear pair). All of these gears are helical gears.
Idler gear
Reduction gear
Differential
Torque converter regulator
valve
Adjusts the feed pressure to the torque converter to the optimum pressure corresponding to the driving
condition.
Pressure regulator valve
Adjusts the discharge pressure from the oil pump to the optimum pressure (line pressure) corresponding
to the driving condition.
Torque converter clutch
control valve
Adjusts the torque converter engage and disengage pressures.
Shift control valve
Controls the line pressure that is applied to the primary pulley according to the stroke difference between
the step motor and primary pulley.
Secondary valve
Reduces the line pressure and adjusts the secondary pressure.
Clutch regulator valve
Adjusts the clutch operating pressure according to the driving conditions.
Manual valve
Distributes the clutch operation pressure to each circuit according to the selector lever position.
Select control valve
Engages when selected. Adjusts the forward clutch pressure and reverse brake pressure.
Select switch valve
Performs switching control of the torque converter clutch solenoid valve control pressure when lock-up
is engaged/disengaged, and when the forward/reverse clutches (forward clutch and reverse brake) are
engaged/disengaged.
Step motor
• Step motor changes step by turning 4 coils ON or OFF according to signal from TCM.
• By changing step, step motor controls outward flow and inward flow of line pressure to primary pulley,
determines the primary pulley position, and controls gear ratio.
Part name
Function
SYSTEM
TM-175
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
SYSTEM
CVT CONTROL SYSTEM
CVT CONTROL SYSTEM : System Description
INFOID:0000000012200878
JSDIA6363GB
TM-176
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
SYSTEM
CVT CONTROL SYSTEM : System Diagram
INFOID:0000000012200879
CVT CONTROL SYSTEM : Fail-Safe
INFOID:0000000012200880
The TCM has an electrical fail-safe mode. In this mode TCM is operator even if there is an error in a main
electronic control input/output signal circuit.
DESCRIPTION
When a malfunction is detected in each sensor, switch, solenoid or others, this function provides control to
minimize reduction of drivability so that durability of transmission assembly can be acquired.
JSDIA5166GB
DTC
Condition
Vehicle behavior
P0703
—
• Start is slow
• Acceleration is slow
P0705
—
• Position indicator on combination meter is not dis-
played
• Selector shock is large
• Start is slow
• Acceleration at high load state is slow
• Manual mode is not activated
• Lock-up is not performed
P0710
Engine coolant temperature when engine starts is 10
°C (50°F) or
more
Start is slow
Engine coolant temperature when engine starts is 10
°C (50°F) or
less
• Start is slow
• Acceleration is slow
• Vehicle speed is not increased
Engine coolant temperature when engine starts is
−35°C (−31°F)
or less
Vehicle speed is not increased
SYSTEM
TM-177
< SYSTEM DESCRIPTION >
[CVT: RE0F10B]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
P0715
—
• Acceleration is slow
• Re-start is slow after vehicle is stop by strong decel-
eration
• Manual mode is not activated
• Lock-up is not performed
P0720
—
• Start is slow
• Acceleration is slow
• Re-start is slow after vehicle is stop by strong decel-
eration
• Manual mode is not activated
• Lock-up is not performed
P0725
—
Lock-up is not performed
P0740
—
• Selector shock is large
• Lock-up is not performed
P0744
—
Lock-up is not performed
P0746
A malfunction is detected
• Start is slow
• Acceleration is slow
• Lock-up is not performed
Function is excessively reduced after a malfunction is detected
• Start is difficult
• Drive is difficult
• Lock-up is not performed
P0778
—
Vehicle speed is not increased
P0826
—
Manual mode is not activated
P0840
—
• Start is slow
• Acceleration is slow
P0841
—
• Start is slow
• Acceleration is slow
P0845
—
• Start is slow
• Acceleration is slow
P0868
—
• Start is slow
• Acceleration is slow
P1701
—
• Start is slow
• Acceleration is slow
P1705
—
• Acceleration is slow
• Lock-up is not performed
P1709
—
• Start is slow
• Acceleration is slow
• Shift position indicator (P, N) is not displayed, or is
displayed with delay.
P1722
—
Lock-up is not activated in coast state
P1723
A malfunction is detected in primary pulley speed sensor side
• Acceleration is slow
• Re-start is slow after vehicle is stop by strong decel-
eration
• Manual mode is not activated
• Lock-up is not performed
A malfunction is detected in secondary pulley speed sensor
• Start is slow
• Acceleration is slow
• Re-start is slow after vehicle is stop by strong decel-
eration
• Manual mode is not activated
• Lock-up is not performed
P1726
—
Acceleration is slow
P1740
—
• Selector shock is large
• Lock-up is not performed
DTC
Condition
Vehicle behavior
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