Nissan Sentra. Manual - part 864

TM-92

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

SYSTEM

SYSTEM

CVT CONTROL SYSTEM
CVT CONTROL SYSTEM : System Diagram

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JSDIA2803GB

SYSTEM

TM-93

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

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CVT CONTROL SYSTEM : System Description

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DESCRIPTION

• CVT detects the vehicle driving status from switches, sensors and signals, and controls the vehicle so that

the optimum shift position and shift timing may always be achieved. It also controls the vehicle to reduce

shift and lockup shock, etc. 

• If a malfunction occurs on the electric system, activate the fail-safe mode only to drive the vehicle. 

MAIN CONTROL CONTENTS OF TCM

LIST OF CONTROL ITEMS AND INPUT/OUTPUT

Controls

Reference

Line pressure control

TM-97, "LINE PRESSURE CONTROL : System Description"

Shift control

TM-98, "SHIFT CONTROL : System Description"

Select control

TM-100, "SELECT CONTROL : System Description"

Lock-up control

TM-101, "LOCK-UP CONTROL : System Description"

Idle neutral control

TM-102, "IDLE NEUTRAL CONTROL : System Description"

ECO mode control

DMS-26, "ECO MODE CONTROL : System Description"

SPORT mode control

DMS-63, "SPORT MODE CONTROL : System Description"

Fail-safe

TM-94, "CVT CONTROL SYSTEM : Fail-Safe"

Self-diagnosis function

TM-108, "CONSULT Function"

Communication function with CONSULT

TM-108, "CONSULT Function"

Control Item

Shift control

Line pressure 

control

Select control

Lock-up con-

trol

Fail-safe func-

tion*

Input

Engine torque signal
(CAN communication)

×

×

×

×

×

Engine speed signal
(CAN communication)

×

×

×

×

×

Accelerator pedal position signal
(CAN communication)

×

×

×

×

×

Closed throttle position signal
(CAN communication)

×

×

×

Stop lamp switch signal
(CAN communication)

×

×

×

×

Secondary pressure sensor 

×

×

×

×

CVT fluid temperature sensor

×

×

×

×

Primary speed sensor

×

×

×

×

Secondary speed sensor

×

×

×

×

×

Output speed sensor

×

×

×

×

×

Transmission range switch

×

×

×

×

×

Overdrive control switch signal
(CAN communication)

×

ECO mode switch signal
(CAN communication)

×

SPORT mode switch signal
(CAN communication)

×

TM-94

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

SYSTEM

*: If these input/output signals show errors, TCM activates the fail-safe function.

CVT CONTROL SYSTEM : Fail-Safe

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TCM has a fail-safe mode. The mode functions so that operation can be continued even if the signal circuit of

the main electronically controlled input/output parts is damaged.

If the vehicle shows following behaviors including “poor acceleration”, a malfunction of the applicable system

is detected by TCM and the vehicle may be in a fail-safe mode.  At this time, check the DTC code and perform

inspection and repair according to the malfunction diagnosis procedures. 

Fail-safe function

Output

Line pressure solenoid valve

×

×

×

×

Primary pressure solenoid valve

×

×

Torque converter clutch solenoid valve

×

×

High clutch & reverse brake solenoid 
valve

×

×

×

Low brake solenoid valve

×

×

×

Shift position indicator
(CAN communication)

×

OD OFF indicator lamp signal
(CAN communication)

×

ECO mode indicator lamp signal
(CAN communication)

×

SPORT mode indicator lamp signal
(CAN communication)

×

Control Item

Shift control

Line pressure 

control

Select control

Lock-up con-

trol

Fail-safe func-

tion*

DTC

Vehicle behavior

Conditions of vehicle

P062F

• Not changed from normal driving

—

P0705

• Shift position indicator on combination meter is not dis-

played

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0706

• Shift position indicator on combination meter is not dis-

played

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0711

• Acceleration is slow

Engine coolant temperature when engine start: Temp. 

≥  

10

°C (50°F)

• Selector shock is large
• Start  is  slow

Engine coolant temperature when engine start:-35

°C (-

31

°F) ≤ Temp. < 10°C (50°F)

• Selector shock is large
• Start  is  slow

Engine coolant temperature when engine start: Temp. < -
35

°C (-31°F)

P0712

• Acceleration is slow

Engine coolant temperature when engine start: Temp. 

≥  

10

°C (50°F)

• Selector shock is large
• Start  is  slow

Engine coolant temperature when engine start:-35

°C (-

31

°F) ≤ Temp. < 10°C (50°F)

• Selector shock is large
• Start  is  slow

Engine coolant temperature when engine start: Temp. < -
35

°C (-31°F)

SYSTEM

TM-95

< SYSTEM DESCRIPTION >

[CVT: RE0F11A]

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P0713

• Acceleration is slow

Engine coolant temperature when engine start: Temp. 

≥  

10

°C (50°F)

• Selector shock is large
• Start  is  slow

Engine coolant temperature when engine start:-35

°C (-

31

°F) ≤ Temp. < 10°C (50°F)

• Selector shock is large
• Start  is  slow

Engine coolant temperature when engine start: Temp. < -
35

°C (-31°F)

P0715

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Vehicle speed is not increased
• Lock-up is not performed

—

P0720

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0740

• Lock-up is not performed

—

P0743

• Lock-up is not performed

—

P0744

• Lock-up is not performed

—

P0746

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Vehicle speed is not increased
• Lock-up is not performed

—

P0846

• Start  is  slow
• Acceleration is slow

—

P0847

• Acceleration is slow

—

P0848

• Start  is  slow
• Acceleration is slow

—

P0863

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0890

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0962

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0963

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0965

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0966

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

P0967

• Selector shock is large
• Start  is  slow
• Acceleration is slow
• Lock-up is not performed

—

DTC

Vehicle behavior

Conditions of vehicle