Infiniti FX35, FX50 (S51). Manual - part 1850

SHIFT PATTERN CONTROL

TM-207

< SYSTEM DESCRIPTION >

[7AT: RE7R01B (VK50VE)]

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- Output speed sensor

- 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

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

*2: With paddle shifter

ASC (ADAPTIVE SHIFT CONTROL) : Component Description

INFOID:0000000005250202

MANUAL MODE

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"

ABS actuator and electric unit (control unit)

BRC-29, "System Description"

TM-208

< SYSTEM DESCRIPTION >

[7AT: RE7R01B (VK50VE)]

SHIFT PATTERN CONTROL

MANUAL MODE : System Diagram

INFOID:0000000005250203

MANUAL MODE : System Description

INFOID:0000000005250204

INPUT/OUTPUT SIGNAL CHART

*1: This signal is transmitted via CAN communication line.

*2: With paddle shifter

SYSTEM DESCRIPTION

Manual Mode

• The TCM receives the manual mode signal, non-manual mode signal, manual mode shift up signal, manual

mode shift down signal, paddle shifter shift up signal* and paddle shifter shift down signal* from unified meter
and A/C amp. via CAN communication line. The TCM shifts shift pattern control to the manual mode based
on these signals, and then shifts the A/T by operating each solenoid valve according to the shift operation of
the driver.
*: With paddle shifter

JSDIA1474GB

Sensor

Input signal to TCM

TCM function

Actuator

Output speed sensor

Vehicle 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 sole-

noid valve

• Line pressure solenoid valve
• Anti-interlock solenoid valve

A/T fluid temperature sensor

ATF temperature

ECM

Engine speed signal*

Accelerator pedal position signal*

Unified meter and A/C amp.

Manual mode signal*

Non-manual mode signal*

Manual mode shift up signal*

Manual mode shift down signal*

Paddle shifter shift up signal

*1, *2

Paddle shifter shift down signal

*1, *2

SHIFT PATTERN CONTROL

TM-209

< SYSTEM DESCRIPTION >

[7AT: RE7R01B (VK50VE)]

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• The TCM prohibits the manual mode while being in fail-safe mode due to an A/T malfunction, etc. Refer to

TM-328, "Fail-Safe"

.

• The TCM transmits the manual mode shift refusal signal to the unified meter and A/C amp. if the TCM

refuses the transmission from the driving status of vehicle when the selector lever shifts to UP or DOWN
side. The unified meter and A/C amp. blinks shift indicator on the combination meter and sounds the buzzer
to indicate the driver that the shifting is not performed when receiving this signal. However, the TCM does
not transmit the manual mode shift refusal signal in the conditions as per the following.

- When the selector lever shifts to DOWN side while driving in 1GR.
- When the selector lever shifts to UP side while driving in 7GR.

MANUAL MODE : Component Parts Location

INFOID:0000000005520216

1.

Selector lever position indicator

2.

A/T shift selector assembly

3.

A/T assembly connector

4.

Control valve with TCM

*1

5.

Accelerator pedal position sensor

6.

Manual mode indicator

7.

Shift position indicator

8.

A/T CHECK indicator lamp

9.

Paddle shifter (shift-down)

*2

10. Paddle shifter (shift-up)

*2

JSDIA0787ZZ

TM-210

< SYSTEM DESCRIPTION >

[7AT: RE7R01B (VK50VE)]

SHIFT PATTERN CONTROL

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

- 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

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

*2: With paddle shifter

MANUAL MODE : Component Description

INFOID:0000000005250206

A.

Center console

B.

A/T assembly

C.

Accelerator pedal

D.

Combination meter

E.

Steering wheel

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"

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"

Unified meter and A/C amp.

MWI-6, "METER SYSTEM : System Description"