Infiniti FX35, FX50 (S51). Manual - part 1803

 

  Index      Infiniti     Infiniti FX35, FX50 (S51) - service repair manual 2010 year

 

Search            

 

 

 

 

 

 

 

 

 

Content   ..  1801  1802  1803  1804   ..

 

 

Infiniti FX35, FX50 (S51). Manual - part 1803

 

 

SHIFT CHANGE CONTROL

TM-19

< SYSTEM DESCRIPTION >

[7AT: RE7R01A (VQ35HR)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

• TCM selects “BLIPPING CONTROL” or “NORMAL SHIFT CONTROL” according to the gear position, the

selector lever position, the engine torque and the speed when accelerating by pedal depression.

• Engine speed control demand signal is transmitted from TCM to ECM under “BLIPPING CONTROL”.
• ECM synchronizes the engine speed according to the engine speed control demand signal.

Downshifting by accelerator pedal depression

Downshifting by the manual mode

JSDIA0815GB

JSDIA0817GB

TM-20

< SYSTEM DESCRIPTION >

[7AT: RE7R01A (VQ35HR)]

SHIFT CHANGE CONTROL

Component Parts Location

INFOID:0000000005477009

NOTE:

• The following components are included in A/T shift selector assembly.

- Manual mode select switch

- Manual mode position select switch

- Shift position switch

• The following components are included in control valve with TCM.

- TCM

- Input speed sensor 1, 2

- Output speed sensor

1.

Selector lever position indicator

2.

A/T shift selector assembly

3.

A/T assembly connector

4.

Control valve with TCM*

5.

Accelerator pedal position sensor

6.

Manual mode indicator

7.

Shift position indicator

8.

A/T CHECK indicator lamp

A.

Center console

B.

A/T assembly

C.

Accelerator pedal

D.

Combination meter

JSDIA0782ZZ

SHIFT CHANGE CONTROL

TM-21

< SYSTEM DESCRIPTION >

[7AT: RE7R01A (VQ35HR)]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

- A/T fluid temperature sensor

- Transmission range switch

- Direct clutch solenoid valve

- High and low reverse clutch solenoid valve

- Input clutch solenoid valve

- Front brake solenoid valve

- Low brake solenoid valve

- Anti-interlock solenoid valve

- 2346 brake solenoid valve

- Line pressure solenoid valve

- Torque converter clutch solenoid valve

*: Control valve with TCM is included in A/T assembly.

Component Description

INFOID:0000000005250001

Name

Function

TCM

The TCM consists of a microcomputer and connectors for signal input and output and 
for power supply. The TCM controls the A/T.

Output speed sensor

TM-76, "Description"

Input speed sensor 1

TM-74, "Description"

Input speed sensor 2

A/T fluid temperature sensor

TM-72, "Description"

Input clutch solenoid valve

TM-100, "Description"

Front brake solenoid valve

TM-102, "Description"

Direct clutch solenoid valve

TM-117, "Description"

High and low reverse clutch solenoid valve

TM-114, "Description"

Low brake solenoid valve

TM-115, "Description"

Anti-interlock solenoid valve

TM-98, "Description"

2346 brake solenoid valve

TM-116, "Description"

Line pressure solenoid valve

TM-97, "Description"

Torque converter clutch solenoid valve

TM-94, "Description"

ECM

EC-30, "System Description"

BCM

BCS-6, "System Description"

TM-22

< SYSTEM DESCRIPTION >

[7AT: RE7R01A (VQ35HR)]

SHIFT PATTERN CONTROL

SHIFT PATTERN CONTROL

ASC (ADAPTIVE SHIFT CONTROL)

ASC (ADAPTIVE SHIFT CONTROL) : System Diagram

INFOID:0000000005250002

ASC (ADAPTIVE SHIFT CONTROL) : System Description

INFOID:0000000005250003

INPUT/OUTPUT SIGNAL CHART

*: This signal is transmitted via CAN communication line.

SYSTEM DESCRIPTION

ASC (Adaptive Shift Control)

It automatically selects the shift pattern (such as road environment and driving style) suitable for the various
situations so as to allow the vehicle to be driven efficiently and smoothly.

For example.....

• When driving on an up/down slope

JSDIA1364GB

Sensor

Input signal to TCM

TCM function

Actuator

Input speed sensor 1, 2

Input speed

Shift pattern control

• High and low reverse 

clutch solenoid valve

• Direct clutch solenoid 

valve

• Input clutch solenoid valve
• Low brake solenoid valve
• 2346 brake solenoid valve
• Front brake solenoid valve
• Torque converter clutch so-

lenoid valve

• Line pressure solenoid 

valve

• Anti-interlock solenoid 

valve

Output speed sensor

Vehicle speed

A/T fluid temperature sensor

ATF temperature

ECM

Engine speed signal*

Accelerator pedal position signal*

Closed throttle position signal*

Engine and A/T integrated control signal
(engine torque)*

ABS actuator and electric unit 
(control unit)

Side G sensor signal*

BCM

Stop lamp switch signal*

 

 

 

 

 

 

 

Content   ..  1801  1802  1803  1804   ..