Nissan Versa Sedan. Manual — part 840
TM-266
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
COMPONENT PARTS
• 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 : Line Pressure Solenoid Valve
INFOID:0000000009268071
• 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-271, "TRANSAXLE : 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 : G Sensor
INFOID:0000000009268072
• G sensor is installed to floor under instrument lower cover.
• G sensor detects front/rear G and inclination applied to the vehicle.
• G sensor converts front/rear G and inclination applied to the vehicle to voltage signal. TCM evaluates front/
rear G and inclination angle of the vehicle from the voltage signal.
CVT CONTROL SYSTEM : Overdrive Control Switch
INFOID:0000000009268073
• The overdrive control switch is installed to the selector lever knob.
• When the OD OFF indicator lamp on the combination meter is OFF and the overdrive control switch is
pressed, the overdrive is cancelled and the OD OFF indicator lamp is ON.
• When the OD OFF indicator lamp on the combination meter is ON and the overdrive control switch is
pressed, the overdrive is active and the OD OFF indicator lamp is OFF.
CVT CONTROL SYSTEM : OD OFF Indicator Lamp
INFOID:0000000009268074
• OD OFF indicator lamp is positioned on the combination meter.
• OD OFF indicator lamp is ON when set to the overdrive off.
• OD OFF indicator lamp 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:0000000009268075
TCM transmits shift position signal to combination meter via CAN communication. The actual shift position is
displayed on combination meter according to the signal.
Condition (status)
OD OFF indicator lamp
Ignition switch OFF.
OFF
Ignition switch ON.
ON (Approx. 2 seconds)
Overdrive control switch is pressed when the selector lever is in
the “D” position and the OD OFF indicator lamp is OFF.
ON
Overdrive control switch is pressed when the selector lever is in
the “D” position and the OD OFF indicator lamp is ON.
OFF
Selector lever is shifted to other position when the selector lever is
at “D” position and the OD OFF indicator lamp is ON.
OFF
COMPONENT PARTS
TM-267
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
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CVT CONTROL SYSTEM : Malfunction Indicator Lamp (MIL)
INFOID:0000000009268076
The malfunction indicator lamp (MIL) is located on the combination
meter.
The MIL will illuminate when the ignition switch is turned ON without
the engine running. This is a bulb check.
When the engine is started, the MIL should turn off. If the MIL
remains illuminated, the on board diagnostic system has detected an
engine system malfunction.
For details, refer to
EC-58, "DIAGNOSIS DESCRIPTION : Malfunc-
.
SHIFT LOCK SYSTEM
SHIFT LOCK SYSTEM : Component Parts Location
INFOID:0000000009268077
COMPONENT DESCRIPTION
JSBIA1315ZZ
1.
Stop lamp switch
2.
Shift lock release lever
3.
Park position switch
4.
Shift lock solenoid
ALDIA0267ZZ
Component
Function
Stop lamp switch
Stop lamp switch turns ON when brake pedal is depressed.
Shift lock release lever
Manually releases the shift lock.
Park position switch
Detects that the selector lever is in “P” position.
Shift lock solenoid
Operates according to the signal from the stop lamp switch and moves the lock lever.
TM-268
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
STRUCTURE AND OPERATION
STRUCTURE AND OPERATION
TRANSAXLE
TRANSAXLE : Cross-Sectional View
INFOID:0000000009268078
TRANSAXLE : Transaxle Mechanism
INFOID:0000000009268079
BELT & PULLEY
1.
Converter housing
2.
Oil pump
3.
Counter drive gear
4.
Control valve
5.
Oil pan
6.
Primary pulley
7.
Steel belt
8.
Secondary pulley
9.
Planetary gear (auxiliary gearbox)
10.
Side cover
11.
Transaxle case
12.
Differential case
13.
Final gear
14.
Reduction gear
15.
Counter driven gear
16.
Drive sprocket
17.
Oil pump chain
18.
Torque converter
19.
Driven sprocket
JSDIA1777ZZ
STRUCTURE AND OPERATION
TM-269
< SYSTEM DESCRIPTION >
[CVT: RE0F11A]
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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
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.
Pulley gear shifting operation
• Pulley gear shifting operation
The movable sheave slides on the shaft to change the groove width of the pulley. Input signals of engine
load (accelerator pedal opening), engine revolution and gear ratio (vehicle speed) change the operation
pressures of the primary pulley and the secondary pulley, and controls the pulley groove width. Along with
change of the pulley groove width, the belt contact radius is changed. This allows continuous and stepless
JSDIA1966ZZ
JSDIA1779GB
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