Nissan Altima L32. Manual - part 1486

TM-288

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

LOCK-UP AND SELECT CONTROL SYSTEM

Component Parts Location - Sedan

INFOID:0000000004201848

Component Description

INFOID:0000000004201849

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

LOCK-UP AND SELECT CONTROL SYSTEM

TM-289

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

EXCEPT TRANSAXLE ASSEMBLY

Name

Function

Torque converter regulator valve

TM-279

TCC control valve

Select control valve

Select switch valve

Manual valve

TCC solenoid valve

TM-324

Lock-up select solenoid valve

TM-358

Primary speed sensor

TM-313

Secondary speed sensor

TM-318

CVT fluid temperature sensor

TM-310

PNP switch

TM-307

Forward clutch

TM-275

Reverse brake

Torque converter

Name

Function

TCM

TM-284

Accelerator pedal position sensor

TM-352

TM-290

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

SHIFT MECHANISM

SHIFT MECHANISM

System Diagram

INFOID:0000000004201850

NOTE:

The gear ratio is set for every position separately.

System Description

INFOID:0000000004201851

In order to select the gear ratio which 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 send the com-

mand to the step motor, and control the flow-in/flow-out of line pressure from the primary pulley to determine

the position of the moving-pulley and control the gear ratio.

“D” POSITION

Shifting over all the ranges of gear ratios from the lowest to the high-

est.

“M” POSITION

When the selector lever is put in the manual shift gate side, the fixed

changing gear line is set. By moving the selector lever to + side or -

side, the manual mode switch is changed over, and shift change like

M/T becomes possible following the changing gear set line step by

step.

DOWNHILL ENGINE BRAKE CONTROL (AUTO ENGINE BRAKE CONTROL)

When downhill 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. 

ACCELERATION CONTROL

JSDIA0126GB

SCIA1953E

SCIA4582E

SHIFT MECHANISM

TM-291

< FUNCTION DIAGNOSIS >

[CVT: RE0F10A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

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 acceleration feeling by making the engine speed

proportionate to the vehicle speed. And a shift map which can gain a larger driving force is available for com-

patibility of mileage with driveability.

Component Parts Location - Coupe

INFOID:0000000004201852

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