Nissan Quest E52. Manual - part 1195

 

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Nissan Quest E52. Manual - part 1195

 

 

TM-10

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

CVT CONTROL SYSTEM

CVT CONTROL SYSTEM : Component Parts Location

INFOID:0000000009650059

COMPONENT DESCRIPTION

A.

Engine room

B.

Engine room, left side

C.

Transaxle assembly

D

Brake pedal, upper

JSDIA2734GB

No.

Component

Function

1

Overdrive control switch

TM-15, "CVT CONTROL SYSTEM : Overdrive Control Switch"

2

BCM

• The TCM receives the following signal via CAN communications from the 

BCM for judging the vehicle driving conditions.

- Stop lamp switch signal

COMPONENT PARTS

TM-11

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

*: These components are installed in control valve assembly.

CVT CONTROL SYSTEM : TCM

INFOID:0000000009650060

Judges driving condition according to signals from each sensor, and optimally controls variable speed mecha-
nism.

CVT CONTROL SYSTEM : Transmission Range Switch

INFOID:0000000009650061

• The transmission range switch is included in the control valve assembly.
• The transmission range switch includes 4 transmission position switches.
• TCM judges the selector lever position by the transmission range switch signal.

3

ECM

• For purposes including improving the feeling when shifting speeds and 

preventing drops in engine speed, control signals are exchanged between 
the ECM and TCM, and real-time cooperative control is performed accord-
ing to the vehicle driving conditions. (Engine and CVT integrated control)

- Engine and CVT integrated control signal

NOTE:
General term for the communication (torque-down permission, torque 
down request, etc.) exchanged between the ECM and TCM.

• The TCM receives the following signal via CAN communications from the 

ECM for judging the vehicle driving conditions.

- Engine speed signal
- Accelerator pedal position signal

4

Combination meter

• The TCM receives the following signal via CAN communications from the 

combination meter for judging the driving request from the driver.

- Overdrive control switch signal

5

Shift position indicator

TM-15, "CVT CONTROL SYSTEM : Shift Position Indicator"

6

O/D OFF indicator lamp

TM-15, "CVT CONTROL SYSTEM : O/D OFF Indicator Lamp"

7

Stop lamp relay

TM-15, "CVT CONTROL SYSTEM : Stop Lamp Relay"

8

TCM

TM-11, "CVT CONTROL SYSTEM : TCM"

9

Secondary speed sensor

TM-12, "CVT CONTROL SYSTEM : Secondary Speed Sensor"

10

Control 
valve

Transmission range switch*

TM-11, "CVT CONTROL SYSTEM : Transmission Range Switch"

CVT fluid temperature sensor*

TM-12, "CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor"

Secondary pressure sensor*

TM-13, "CVT CONTROL SYSTEM : Secondary Pressure Sensor"

Primary pressure sensor*

TM-13, "CVT CONTROL SYSTEM : Primary Pressure Sensor"

Primary speed sensor*

TM-12, "CVT CONTROL SYSTEM : Primary Speed Sensor"

Line pressure solenoid valve*

TM-14, "CVT CONTROL SYSTEM : Line Pressure Solenoid Valve"

Secondary pressure solenoid valve*

TM-14, "CVT CONTROL SYSTEM : Secondary Pressure Solenoid Valve"

Torque converter clutch solenoid 
valve*

TM-14, "CVT CONTROL SYSTEM : Torque Converter Clutch Solenoid 

Valve"

Lock-up select solenoid valve*

TM-14, "CVT CONTROL SYSTEM : Lock-up Select Solenoid Valve"

Step motor*

TM-15, "CVT CONTROL SYSTEM : Step Motor"

ROM assembly*

TM-15, "CVT CONTROL SYSTEM : ROM Assembly"

11

CVT unit connector

12

Stop lamp switch

BRC-11, "Stop Lamp Switch"

No.

Component

Function

Shift position

Transmission range 

switch 1

Transmission range 

switch 2

Transmission range 

switch 3

Transmission range 

switch 4

Transmission range 

switch 3 (monitor)

P

OFF

OFF

OFF

OFF

OFF

R

ON

OFF

OFF

ON

OFF

N

ON

ON

OFF

OFF

OFF

TM-12

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

COMPONENT PARTS

CVT CONTROL SYSTEM : CVT Fluid Temperature Sensor

INFOID:0000000009650062

• The CVT fluid temperature sensor is included in the control valve assembly.
• The CVT fluid temperature sensor detects the CVT fluid temperature and sends a signal to the TCM.
• The fluid temperature sensor uses a thermistor, and changes the signal voltage by converting changes in the

CVT fluid temperature to a resistance value. TCM evaluates the CVT fluid temperature from the signal volt-
age value.

CVT CONTROL SYSTEM : Primary Speed Sensor

INFOID:0000000009650063

• The primary speed sensor is included in the control valve assembly.
• The primary speed sensor detects the primary pulley revolution speed and sends a signal to the TCM.
• The primary speed sensor generates the ON-OFF pulse (short waveform) in proportion to the rotating body

speed which is “The higher the rotating body speed is, the faster the change cycle is”. The TCM judges the
rotating speed from the changing cycle of this pulse signal.

CVT CONTROL SYSTEM : Secondary Speed Sensor

INFOID:0000000009650064

• The secondary speed sensor is installed in the rear of transaxle assembly.

D

ON

ON

ON

ON

ON

L

OFF

ON

ON

OFF

ON

Shift position

Transmission range 

switch 1

Transmission range 

switch 2

Transmission range 

switch 3

Transmission range 

switch 4

Transmission range 

switch 3 (monitor)

JSDIA1825GB

JSDIA2167GB

COMPONENT PARTS

TM-13

< SYSTEM DESCRIPTION >

[CVT: RE0F09B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

• The secondary speed sensor detects the secondary pulley revolution speed and sends a signal to the TCM.
• The secondary speed sensor generates the ON-OFF pulse (short waveform) in proportion to the rotating

body speed which is “The higher the rotating body speed is, the faster the change cycle is”. The TCM judges
the rotating speed from the changing cycle of this pulse signal.

CVT CONTROL SYSTEM : Primary Pressure Sensor

INFOID:0000000009650065

• The primary pressure sensor is included in the transaxle assembly.
• The primary pressure sensor detects primary pressure of CVT and sends a signal to the TCM.
• When pressure is applied to the ceramic device in the primary pressure sensor, the ceramic device is

deformed, resulting in voltage change. TCM evaluates the primary pressure from its voltage change. Voltage
is increased along with pressure increase.

CVT CONTROL SYSTEM : Secondary Pressure Sensor

INFOID:0000000009650066

• The secondary pressure sensor is included in the control valve assembly.
• The secondary pressure sensor detects secondary pressure of CVT and sends a signal to the TCM.

JSDIA1824GB

JSDIA1831GB

 

 

 

 

 

 

 

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