Page 4665 of 5121
TM-192
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
CONTROL SYSTEM
Component Parts Location
INFOID:0000000003809653
*: Control valve assembly is included in CVT assembly.
NOTE:
The following components are included in control valve assembly (8).
CVT fluid temperature sensor
Torque converter clutch solenoid valve
Line pressure solenoid valve
Step motor
ROM assembly
Secondary pressure sensor
Secondary pressure solenoid valve
Lock-up select solenoid valve
1. Sport mode switch 2. Shift position indicator 3. SPORT indicator lamp
4. TCM 5. Secondary speed sensor 6. PNP switch
7. Primary speed sensor 8.
Control valve assembly
*9. CVT unit connector
10. Accelerator pedal position sensor
A. Center console B. Combination meter C. Engine room LH
D. CVT assembly E. Accelerator pedal, upper
JPDIA0746ZZ
Page 4666 of 5121
CONTROL SYSTEM
TM-193
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Component DescriptionINFOID:0000000003806361
TRANSAXLE ASSEMBLY
EXCEPT TRANSAXLE ASSEMBLY
Name Function
PNP switchTM-213
CVT fluid temperature sensorTM-216
Primary speed sensorTM-218
Secondary speed sensorTM-222
Secondary pressure sensorTM-242
Step motorTM-261
TCC solenoid valveTM-230
Lock-up select solenoid valveTM-258
Line pressure solenoid valveTM-234
Secondary pressure solenoid valveTM-240
Name Function
TCMOptimally controls continuously variable transmission system by judging driving condi-
tions based on signals from each sensor.
Stop lamp switchTM-210
Page 4667 of 5121
![NISSAN TEANA 2008 Service Manual TM-194
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
LOCK-UP AND SELECT CONTROL SYSTEM
LOCK-UP AND SELECT CONTROL SYSTEM
System DiagramINFOID:0000000003806362
System DescriptionINFOID:0000000003806363
The to NISSAN TEANA 2008 Service Manual TM-194
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
LOCK-UP AND SELECT CONTROL SYSTEM
LOCK-UP AND SELECT CONTROL SYSTEM
System DiagramINFOID:0000000003806362
System DescriptionINFOID:0000000003806363
The to](/manual-img/5/57391/w960_57391-4666.png)
TM-194
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
LOCK-UP AND SELECT CONTROL SYSTEM
LOCK-UP AND SELECT CONTROL SYSTEM
System DiagramINFOID:0000000003806362
System DescriptionINFOID:0000000003806363
The torque converter clutch piston in the torque converter is engaged to eliminate torque converter slip to
increase power transmission efficiency.
The torque converter clutch control valve operation is controlled by the torque converter clutch solenoid
valve, which is controlled by a signal from TCM. The torque converter clutch control valve engages or
releases the torque converter clutch piston.
When shifting between “N” (“P”) ⇔“D” (“R”), torque converter clutch solenoid valve controls engagement
power of forward clutch and reverse brake.
The lock-up applied gear range was expanded by locking up the
torque converter at a lower vehicle speed than conventional CVT
models.
TORQUE CONVERTER CLUTCH AND SELECT CONTROL VALVE CONTROL
Lock-up Released
In the lock-up released state, the torque converter clutch control valve is set into the unlocked state by the
torque converter clutch solenoid valve and the lock-up apply pressure is drained.
In this way, the torque converter clutch piston is not coupled.
Lock-up Applied
In the lock-up applied state, the torque converter clutch control valve is set into the locked state by the torque
converter clutch solenoid valve and lock-up apply pressure is generated.
In this way, the torque converter clutch piston is pressed and coupled.
Select Control
When shifting between “N” (“P”) ⇔“D” (“R”), optimize the operating pressure on the basis of the throttle posi-
tion, the engine speed, and the secondary pulley (output) revolution speed to lessen the shift shock.
SCIA2374E
JPDIA0312GB
Page 4668 of 5121
LOCK-UP AND SELECT CONTROL SYSTEM
TM-195
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Component Parts LocationINFOID:0000000003809654
*: Control valve assembly is included in CVT assembly.
NOTE:
The following components are included in control valve assembly (8).
CVT fluid temperature sensor
Torque converter clutch solenoid valve
Line pressure solenoid valve
Step motor
ROM assembly
Secondary pressure sensor
Secondary pressure solenoid valve
Lock-up select solenoid valve
1. Sport mode switch 2. Shift position indicator 3. SPORT indicator lamp
4. TCM 5. Secondary speed sensor 6. PNP switch
7. Primary speed sensor 8.
Control valve assembly
*9. CVT unit connector
10. Accelerator pedal position sensor
A. Center console B. Combination meter C. Engine room LH
D. CVT assembly E. Accelerator pedal, upper
JPDIA0746ZZ
Page 4669 of 5121
TM-196
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
LOCK-UP AND SELECT CONTROL SYSTEM
Component Description
INFOID:0000000003806365
TRANSAXLE ASSEMBLY
EXCEPT TRANSAXLE ASSEMBLY
Name Function
Torque converter regulator valve
TM-189
TCC control valve
Select control valve
Select switch valve
Manual valve
TCC solenoid valveTM-230
Lock-up select solenoid valveTM-258
Primary speed sensorTM-218
Secondary speed sensorTM-222
CVT fluid temperature sensorTM-216
PNP switchTM-213
Forward clutch
TM-186
Reverse brake
Torque converter
Name Function
TCMTM-193
Accelerator pedal position sensorTM-252
Page 4670 of 5121
![NISSAN TEANA 2008 Service Manual SHIFT CONTROL SYSTEM
TM-197
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
SHIFT CONTROL SYSTEM
System DiagramINFOID:0000000003806366
NOTE:
The gear ratio is set for each positio NISSAN TEANA 2008 Service Manual SHIFT CONTROL SYSTEM
TM-197
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
SHIFT CONTROL SYSTEM
System DiagramINFOID:0000000003806366
NOTE:
The gear ratio is set for each positio](/manual-img/5/57391/w960_57391-4669.png)
SHIFT CONTROL SYSTEM
TM-197
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
SHIFT CONTROL SYSTEM
System DiagramINFOID:0000000003806366
NOTE:
The gear ratio is set for each position separately.
System DescriptionINFOID:0000000003806367
In order to select the gear ratio that can obtain the driving force in accordance with driver's intention and the
vehicle condition, TCM monitors the driving conditions, such as the vehicle speed and the throttle position and
selects the optimum gear ratio, and determines the gear change steps to the gear ratio. Then TCM sends the
command to the step motor, controls the inflow/outflow of line pressure from the primary pulley to determine
the position of the moving-pulley and controls the gear ratio.
“D” POSITION
Shifting over all the ranges of gear ratios from the lowest to the high-
est.
SPORT MODE
Use this position for the improved engine braking.
“L” POSITION
By limiting gear range to the lowest position, the strong driving force
and the engine brake can be secured.
DOWNHILL ENGINE BRAKE CONTROL (AUTO ENGINE BRAKE CONTROL)
When a downhill slope is detected with the accelerator pedal released, the engine brake will be strengthened
up by downshifting so as not to accelerate the vehicle more than necessary.
JPDIA0745GB
SCIA1953E
SCIA1955E
Page 4671 of 5121
![NISSAN TEANA 2008 Service Manual TM-198
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
SHIFT CONTROL SYSTEM
ACCELERATION CONTROL
According to vehicle speed and a change of accelerator pedal angle, drivers request for acceleration and driv-
in NISSAN TEANA 2008 Service Manual TM-198
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
SHIFT CONTROL SYSTEM
ACCELERATION CONTROL
According to vehicle speed and a change of accelerator pedal angle, drivers request for acceleration and driv-
in](/manual-img/5/57391/w960_57391-4670.png)
TM-198
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
SHIFT CONTROL SYSTEM
ACCELERATION CONTROL
According to vehicle speed and a change of accelerator pedal angle, driver's request for acceleration and driv-
ing scene are judged. This function assists improvement in the acceleration feeling by making the engine
speed proportionate to the vehicle speed. And a shift map that can gain a larger driving force is available for
compatibility of mileage with driveability.
Component Parts LocationINFOID:0000000003809655
*: Control valve assembly is included in CVT assembly.
NOTE:
The following components are included in control valve assembly (8).
CVT fluid temperature sensor
Torque converter clutch solenoid valve
Line pressure solenoid valve
Step motor
ROM assembly
1. Sport mode switch 2. Shift position indicator 3. SPORT indicator lamp
4. TCM 5. Secondary speed sensor 6. PNP switch
7. Primary speed sensor 8.
Control valve assembly
*9. CVT unit connector
10. Accelerator pedal position sensor
A. Center console B. Combination meter C. Engine room LH
D. CVT assembly E. Accelerator pedal, upper
JPDIA0746ZZ
Page 4672 of 5121
SHIFT CONTROL SYSTEM
TM-199
< FUNCTION DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Secondary pressure sensor
Secondary pressure solenoid valve
Lock-up select solenoid valve
Component DescriptionINFOID:0000000003806369
TRANSAXLE ASSEMBLY
EXCEPT TRANSAXLE ASSEMBLY
Item Function
PNP switchTM-213
Primary speed sensorTM-218
Secondary speed sensorTM-222
Step motorTM-261
Shift control valveTM-189
Primary pulleyTM-186
Secondary pulleyTM-186
Item Function
TCMTM-193