Nissan Altima L32. Manual - part 1483

TM-276

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

HYDRAULIC CONTROL SYSTEM

HYDRAULIC CONTROL SYSTEM

System Diagram

INFOID:0000000004201835

System Description

INFOID:0000000004201836

The hydraulic control mechanism consists of the oil pump directly driven by the engine, the hydraulic control

valve that controls line pressure and transmission, and the input signal line.

LINE PRESSURE AND SECONDARY PRESSURE CONTROL

• When an input torque signal equivalent to the engine drive force is sent from the ECM to the TCM, the TCM

controls the line pressure solenoid valve and secondary pressure solenoid valve.

SCIA8216E

HYDRAULIC CONTROL SYSTEM

TM-277

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

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L

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• This line pressure solenoid controls the pressure regulator valve as the signal pressure and adjusts the pres-

sure of the operating oil discharged from the oil pump to the line pressure most appropriate to the driving

state. Secondary pressure is controlled by decreasing line pressure.

Normal Control

Optimize the line pressure and secondary pressure, depending on driving conditions, on the basis of the throt-

tle position, the engine speed, the primary pulley (input) revolution speed, the secondary pulley (output) revo-

lution speed, the brake signal, the PNP switch signal, the lock-up signal, the voltage, the target gear ratio, the

fluid temperature, and the fluid pressure.

Feedback Control

When controlling the normal fluid pressure or the selected fluid pressure, the secondary pressure can be set

more accurately by using the fluid pressure sensor to detect the secondary pressure and controlling the feed-

back.

SCIA1846E

TM-278

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

HYDRAULIC CONTROL SYSTEM

Component Parts Location - Coupe

INFOID:0000000004201837

1.

Control device assembly

2.

Accelerator pedal position sensor

3.

CVT unit harness connector

4.

Primary speed sensor

5.

Secondary speed sensor

6.

PNP switch

7.

TCM

8.

Battery

9.

Shift position indicator
Manual mode indicator

AWDIA0167ZZ

HYDRAULIC CONTROL SYSTEM

TM-279

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Component Parts Location - Sedan

INFOID:0000000004201838

Component Description

INFOID:0000000004201839

TRANSAXLE ASSEMBLY

1.

Control device assembly

2.

Accelerator pedal position sensor

3.

CVT unit harness connector

4.

Primary speed sensor

5.

Secondary speed sensor

6.

PNP switch

7.

TCM

8.

Battery

9.

Shift position indicator
Manual mode indicator

AWIIA0002ZZ