Nissan Sentra. Manual - part 902

TM-244

< SYMPTOM DIAGNOSIS >

[CVT: RE0F11A]

CVT CONTROL SYSTEM

SYMPTOM DIAGNOSIS

CVT CONTROL SYSTEM

Symptom Table

INFOID:0000000009759495

The diagnosis item number indicates the order of check. Start checking in the order from 1. 

Symptom diagnosis chart 1-1

Symptom

Check under on board condition (repair 

and part replacement) 

Replace the transaxle assembly. 

En

gi

ne

 sy

st

em

In

co

rrect a

dj

ustm

en

t of

 CVT 

flu

id 

level

 

L

ine

 p

res

su

re i

s 

ou

t of

 th

e s

ta

nd

ard

 va

lu

e. 

Co

nt

rol

 ca

bl

e

Electric system

TCM

Ov

erd

riv

e co

nt

ro

l s

w

itch

Prim

ary

 spe

ed

 se

ns

or (P07

15

)

Se

co

nd

ary

 s

pe

ed

 se

ns

or 

(P27

65

)

O

ut

pu

t s

pe

ed

 se

ns

or 

(P07

20

) 

T

ran

sm

is

si

on

 po

si

tio

n s

w

itch

 (P07

05

, P0

70

6)

Sec

o

nd

ar

y pre

ss

u

re

 se

ns

or (P08

46

, 

P0

84

7,

 P08

4

8)

Pri

m

a

ry p

res

su

re

 so

le

no

id 

va

lv

e (P0

96

5,

 P0

966

, P

09

67)

Li

ne

 pre

ss

u

re

 so

le

no

id

 va

lv

e (P07

46

, 

P0

96

2,

 P09

6

3)

Lo

ck

-up

 so

le

no

id

 va

lv

e

(P07

40

, P0

74

3,

 P07

4

4)

Hig

h 

clu

tc

h &

rev

ers

e b

rak

e 

so

le

no

id 

va

lv

e

(P0

99

B

, P0

99

C, P2

85

8,

 P28

5A

)

Lo

w bra

ke

 sol

eno

id

 va

lv

e

(P09

98

, P0

99

9,

 P28

5

7,

 P2

85

9)

CVT 

flu

id

 tem

p

erat

ure

 s

ens

o

r (P07

11

, P07

12

, P

07

13)

EC-126

TM

-2

50

TM

-1

49

TM

-1

50

TM-1

14

TM

-2

36

TM

-1

26

Driving is 

not possi-

ble. 

The engine speed increases in 
“D”, “L”, or “R” position, but the 
vehicle cannot start. 

1

1

1

1

1

1

1

1

2

1

1

1

2

Engine stall occurs in “D”, “L”, 
or “R” position and the vehicle 
does not start. 

1

1

1

1

1

1

1

1

1

1

2

Acceleration at start is not suf-
ficient in “D”, “L”, or “R” posi-
tion. 

1

2

1

1

1

1

2

2

1

1

2

1

1

1

The engine speed increases 
suddenly in “D”, “L”, or “R” po-
sition during driving. 

1

1

2

1

1

1

1

Engine brake is suddenly ap-
plied in “D” or “R” position dur-
ing driving. 

1

1

1

1

1

1

CVT CONTROL SYSTEM

TM-245

< SYMPTOM DIAGNOSIS >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Shifting is 
not possi-

ble. 

The engine races when the 
auxiliary gearbox is shifted 
from 1GR 

⇔ 2GR. 

2

1

1

1

1

Engine braking is not effective 
in “L” position.

1

1

1

1

1

1

2

1

1

1

Shifting does not occur with 
OD OFF. 

1

1

1

1

1

1

1

1

Engine stall occurs immediate-
ly before stop at deceleration in 
“D” or “L” position. 

1

1

During driving in “D” position, 
slippage occurs in lockup or 
lockup is not possible. 

1

1

1

1

1

2

1

1

1

1

Symptom

Check under on board condition (repair 

and part replacement) 

Replace the transaxle assembly. 

En

gi

ne

 s

ys

tem

In

co

rrec

t 

adj

ust

me

nt

 of

 CVT f

lui

d l

ev

el

 

Li

ne

 pre

ss

u

re

 is o

u

t of

 th

e 

st

an

da

rd va

lu

e.

 

Co

ntro

l c

a

ble

Electric system

TC

M

Ov

erd

riv

e c

on

tro

l s

w

itc

h

Prim

ary

 s

p

ee

d se

nso

r (P07

15

)

Se

cond

ary

 s

pe

ed

 s

en

so

r (P27

65

)

Out

put

 sp

ee

d se

ns

or (P0

7

20

) 

T

ran

sm

is

si

on

 po

si

tio

n

 swi

tch

 (P0

7

05

, P07

0

6)

Se

cond

ary

 p

res

su

re 

se

ns

or (P

08

46,

 P0

84

7, P

08

48

)

Pri

m

a

ry 

pre

ss

ure

 s

ole

no

id

 va

lv

e 

(P09

65

, P0

96

6, 

P09

67

)

Li

ne

 pre

ss

u

re

 s

o

le

no

id

 v

a

lve

 (P07

46

, P0

96

2,

 P09

6

3)

L

oc

k-u

p so

le

noi

d va

lve

(P0

74

0,

 P0

743

, P

07

44)

Hi

gh

 cl

utc

h 

&rev

ers

e 

bra

ke

 s

ole

no

id

 va

lv

e

(P09

9B,

 P0

99

C,

 P2

85

8,

 P28

5

A)

L

ow 

b

rak

e so

le

no

id va

lv

e

(P0

99

8,

 P0

999

, P

28

57,

 P2

85

9)

CVT f

lui

d t

e

m

p

er

at

ur

e se

ns

or (P07

11

, P07

1

2,

 P0

71

3)

EC-126

TM-250

TM-149

TM-150

TM-1

14

TM-236

TM-126

TM-246

< SYMPTOM DIAGNOSIS >

[CVT: RE0F11A]

CVT CONTROL SYSTEM

Symptom diagnosis chart 1-2

Symptom

Replace the transaxle assembly. 

Oil pres-

sure con-

trol 

Power transmission 

V

al

ve bo

dy

, co

nt

rol

 va

lve

Oil pu

mp

To

rqu

e

 co

nv

ert

er

P

ull

ey

, st

ee

l b

elt

 

L

ow brak

e

 

Hi

gh

 cl

utc

h

Rev

e

rs

e bra

ke

 

Be

ari

ngs

Co

un

ter ge

ar 

P

lan

et

ary

 ge

ar

Red

uc

tio

n ge

ar

F

ina

l gea

r, dif

fe

ren

tia

l g

ea

r

Pa

rki

ng me

ch

an

is

m

TM

-283

Driving is 

not possi-

ble. 

The engine speed increases in 
“D”, “L”, or “R” position, but the 
vehicle cannot start. 

1

1

1

1

(In “D” or 

“L”)

1

(In “R”)

1

1

1

1

Engine stall occurs in “D”, “L”, 
or “R” position and the vehicle 
does not start. 

1

1

1

1

1

1

1

Acceleration at start is not suf-
ficient in “D”, “L”, or “R” posi-
tion. 

1

1

1

(In “D” or 

“L”)

1

(In “R”)

The engine speed increases 
suddenly in “D”, “L”, or “R” po-
sition during driving. 

1

1

1

1

(In “D” or 

“L”)

1

(In “D” or 

“L”)

1

(In “R”)

Engine brake is suddenly ap-
plied in “D” or “R” position dur-
ing driving. 

1

1

(In “D” or 

“L”)

1

(In “D” or 

“L”)

1

(In “R”)

Shifting is 
not possi-

ble. 

The engine races when the 
auxiliary gearbox is shifted 
from 1GR 

⇔ 2GR. 

1

1

2

1

1

Engine braking is not effective 
in “L” position.

1

2

1

2

1

1

Shifting does not occur with 
OD OFF. 

Engine stall occurs immedi-
ately before stop at decelera-
tion in “D” or “L” position. 

1

1

During driving in “D” position, 
slippage occurs in lockup or 
lockup is not possible. 

1

1

CVT CONTROL SYSTEM

TM-247

< SYMPTOM DIAGNOSIS >

[CVT: RE0F11A]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

Symptom diagnosis chart 2-1

Symptom

Check under on board condition (repair 

and part replacement) 

Replace the transaxle assembly. 

En

gin

e sy

st

em

In

co

rrec

t a

dj

us

tme

nt

 of

 CVT f

lui

d 

lev

el

 

Li

ne

 pre

ssu

re i

s o

ut

 of

 th

e s

ta

nd

ard

 va

lu

e. 

Co

nt

rol

 ca

bl

e

Electric system

TCM

Ov

erd

riv

e co

nt

ro

l s

w

itc

h

Pri

m

ary

 sp

ee

d se

ns

or (P07

15

)

Se

co

nd

ary

 s

pee

d 

se

ns

or (P

27

65

)

O

ut

put

 s

pee

d se

ns

or (P07

20

) 

T

ra

n

sm

issi

on

 po

si

tio

n

 s

w

itc

h

 (P07

05

, 

P0

70

6)

Sec

o

nd

ar

y p

res

sure

 se

ns

or (P08

46

, 

P0

84

7,

 P08

4

8)

Prim

a

ry p

res

su

re 

so

le

noi

d 

va

lv

e (P0

96

5,

 P09

66

, P0

96

7)

Li

ne

 pre

ssu

re s

ol

en

oid

 v

al

ve

 (P0

746

, P

09

62,

 P0

96

3)

Lo

ck

-up

 so

le

no

id

 va

lv

e

(P07

40

, P0

74

3,

 P07

4

4)

Hig

h c

lu

tc

h &

rev

ers

e b

rak

e 

so

len

oi

d v

a

lve

(P099B, P099C, P2858, 

P285A)

Lo

w b

rak

e s

ol

en

oi

d v

al

ve

(P09

98

, P0

99

9,

 P28

5

7,

 P2

85

9)

CVT flu

id tem

pe

rat

ure

 se

ns

or (P07

11

, 

P07

12

, P0

71

3)

EC-126

TM

-2

50

TM

-1

49

TM

-1

50

TM-1

14

TM

-2

36

TM

-1

26

Shock vi-

bration

Noise

Shock at start is large in “D”, 
“L”, or “R” position. 

1

2

1

1

Shock is large when the aux-
iliary gearbox is shifted from 
1GR 

→ 2GR. 

2

1

2

2

2

1

1

Shock in lockup is large dur-
ing driving in “D” or “L” posi-
tion. 

1

1

Shock is large when the lever 
is shifted from “N” 

→ “D” and 

“N” 

→ “R” positions. 

1

1

2

1

1

1

1

1

1

1

1

Shock is large when the lever 
is shifted from “D” 

→ “L” posi-

tion. 

Vibration occurs in “D”, “L”, or 
“R” position during driving. 

1

1

1

1

1

2

1

1

1

Noise occurs during driving. 

1

Noise occurs in idling. 

1

1