Infiniti QX56 (Z62). Manual — part 1315

SYSTEM SYMPTOM

TM-169

< SYMPTOM DIAGNOSIS >

[7AT: RE7R01B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

SYMPTOM TABLE 2

Symptom

Diagnostic item

Control cable

Outp

ut sp

ee

d

s

e

n

s

or

V

eh

icl

e sp

ee

d s

ig

na

l

Acc

e

le

ra

to

r pe

da

l p

o

s

iti

on

se

ns

or

En

gi

ne

sp

ee

d si

g

n

a

l

Inp

ut

sp

ee

d

se

ns

or

A/T flu

id tem

p

e

rat

ure

se

ns

or

Ba

tte

ry vo

lt

a

g

e

T

ran

sm

is

si

on

ran

ge

s

w

itc

h

Ma

nu

al

mo

de

s

w

itc

h

S

to

p

lam

p

swit

ch

Li

ne

pre

s

s

u

re

s

o

le

no

id

va

lv

e

T

o

rqu

e

c

o

nv

erte

r c

lut

ch

so

le

no

id

va

lv

e

Lo

w bra

k

e

s

o

le

no

id

v

a

lv

e

Fron

t

b

rak

e so

le

noi

d va

lve

High

a

n

d

lo

w rev

e

rs

e

cl

utc

h

so

len

o

id

v

a

lv

e

Inp

ut

cl

utc

h

so

le

no

id

va

lv

e

Di

re

ct cl

utch

so

le

no

id

va

lv

e

23

46

bra

k

e

s

o

leno

id

v

a

lv

e

Ant

i-in

terl

oc

k

so

le

noi

d va

lve

S

tarter relay

CAN communication

TM

-101

TM-1

10

TM

-138

TM

-137

TM-1

12

TM

-109

TM

-107

TM

-151

TM

-106

TM

-144

TM

-159

TM

-131

TM

-128

TM

-148

TM

-136

TM

-147

TM

-133

TM

-150

TM

-149

TM

-132

TM

-104

TM

-103

Function
trouble

Power transmis-
sion cannot be
performed

Vehicle cannot run in all
position.

3

2

1

1

1

1

1

1

1

1

1

Driving is not possible in
“D” position.

3

2

1

1

1

1

1

1

1

1

1

Driving is not possible in
“R” position.

3

2

1

1

1

Engine stall

4

5

5

6

3

2

1

Engine stalls when selec-
tor lever shifted “N”

→

“D”

or “R”.

4

5

5

3

2

1

Engine does not start in
“N” or “P” position.

3

1

2

1

Engine starts in position
other than “N” or “P”.

3

2

1

Poor operation

Vehicle does not enter
parking condition.

1

2

Parking condition is not
cancelled.

1

2

Vehicle runs with A/T in
“P” position.

1

2

Vehicle moves forward
with the “R” position.

1

2

Vehicle runs with A/T in
“N” position.

1

2

Vehicle moves backward
with the “D” position.

1

2

TM-170

< SYMPTOM DIAGNOSIS >

[7AT: RE7R01B]

SYSTEM SYMPTOM

*: Parts behind drum support is impossible to perform inspection by disassembly. Refer to

TM-16, "TRANSMISSION : Cross-Sectional

View"

.

Symptom

Diagnostic item

Oil pum

p

T

o

rq

ue

co

nv

ert

e

r

Lo

w bra

k

e

*

F

ron

t b

rak

e

Hig

h

and

l

o

w re

ve

rse

c

lut

ch

In

pu

t clu

tch

Direct clutch

23

46

bra

ke

Re

vers

e b

rak

e

1

s

t on

e-way

c

lu

tch

2n

d o

ne

-way

cl

ut

ch

ge

ar

co

ntro

l v

a

lv

e

Pa

rki

ng

co

mp

on

en

t

TM-27

0

TM-21

1

TM-21

1

TM-21

1

TM-29

2

TM-28

2

TM-29

4

TM-27

0

TM-21

1

TM-21

1

TM-28

7

TM-21

1

TM-18

2

TM-21

1

Poor
perfor-
mance

Driving
perfor-
mance

Shift point is high in “D” position.

Shift point is low in “D” position.

Large
shock

When
shifting
gears

→

“D” position

1

2

2

→

“R” position

1

1

2

1GR

⇔

2GR

1

2

2GR

⇔

3GR

1

2

3GR

⇔

4GR

2

1

2

4GR

⇔

5GR

1

1

2

5GR

⇔

6GR

1

1

2

6GR

⇔

7GR

1

1

2

Downshift when accel-
erator pedal is de-
pressed

2

1

1

1

1

1

1

1

2

Upshift when accelera-
tor pedal is released

2

1

1

1

1

1

1

1

2

Lock-up

1

2

Judder

Lock-up

1

2

Strange noise

In “R” position

1

1

1

1

2

In “N” position

1

1

1

2

In “D” position

1

1

1

1

2

Engine at idle

1

1

1

2

SYSTEM SYMPTOM

TM-171

< SYMPTOM DIAGNOSIS >

[7AT: RE7R01B]

C

E

F

G

H

I

J

K

L

M

A

B

TM

N

O

P

*: Parts behind drum support is impossible to perform inspection by disassembly. Refer to

TM-16, "TRANSMISSION : Cross-Sectional

View"

.

Symptom

Diagnostic item

Oil pum

p

T

o

rq

ue

co

nv

ert

e

r

Lo

w bra

k

e

*

F

ron

t b

rak

e

Hig

h

and

l

o

w re

ve

rse

c

lut

ch

In

pu

t clu

tch

Direct clutch

23

46

bra

ke

Re

vers

e b

rak

e

1

s

t on

e-way

c

lu

tch

2n

d o

ne

-way

cl

ut

ch

ge

ar

co

ntro

l v

a

lv

e

Pa

rki

ng

co

mp

on

en

t

TM-27

0

TM-21

1

TM-21

1

TM-21

1

TM-29

2

TM-28

2

TM-29

4

TM-27

0

TM-21

1

TM-21

1

TM-28

7

TM-21

1

TM-18

2

TM-21

1

Func-
tion
trouble

Gear
does no
change

“D” posi-
tion

Locks in 1GR

1

1

1

2

Locks in 2GR

1

Locks in 3GR

1

Locks in 4GR

1

Locks in 5GR

1

Locks in 6GR

1

Locks in 7GR

1

1GR

→

2GR

1

1

1

2

2GR

→

3GR

1

2

3GR

→

4GR

2

1

1

1

2

4GR

→

5GR

1

1

2

5GR

→

6GR

1

2

6GR

→

7GR

2

1

1

1

2

5GR

→

4GR

1

2

4GR

→

3GR

2

1

2

3GR

→

2GR

1

1

2

2GR

→

1GR

1

1

1

2

Does not lock-up

1

2

1

1

1

1

1

1

1

2

“M” posi-
tion

1GR

⇔

2GR

2

1

1

1

1

1

1

1

2

2GR

⇔

3GR

2

1

1

1

1

1

1

1

2

3GR

⇔

4GR

2

1

1

1

1

1

1

1

2

4GR

⇔

5GR

2

1

1

1

1

1

1

1

2

5GR

⇔

6GR

2

1

1

1

1

1

1

1

2

6GR

⇔

7GR

2

1

1

1

1

1

1

1

2

TM-172

< SYMPTOM DIAGNOSIS >

[7AT: RE7R01B]

SYSTEM SYMPTOM

Symptom

Diagnostic item

Oil pum

p

T

o

rq

ue

co

nv

ert

e

r

Lo

w bra

k

e

*

F

ron

t b

rak

e

Hig

h

and

l

o

w re

ve

rse

c

lut

ch

In

pu

t clu

tch

Direct clutch

23

46

bra

ke

Re

vers

e b

rak

e

1

s

t on

e-way

c

lu

tch

2n

d o

ne

-way

cl

ut

ch

ge

ar

co

ntro

l v

a

lv

e

Pa

rki

ng

co

mp

on

en

t

TM-27

0

TM-21

1

TM-21

1

TM-21

1

TM-29

2

TM-28

2

TM-29

4

TM-27

0

TM-21

1

TM-21

1

TM-28

7

TM-21

1

TM-18

2

TM-21

1

Func-
tion
trouble

Poor
shift-
ing

Slip

When
shifting
gears

1GR

⇔

2GR

1

1

1

2

2GR

⇔

3GR

1

1

2

3GR

⇔

4GR

1

2

1

2

4GR

⇔

5GR

1

1

1

2

5GR

⇔

6GR

1

1

1

2

6GR

⇔

7GR

1

1

1

2

En-
gine
brake
does
not
work

“D” position

→

“M” position

1

1

1

1

1

2

“M” posi-
tion

7GR

→

6GR

1

1

1

2

6GR

→

5GR

1

1

1

2

5GR

→

4GR

1

1

1

2

4GR

→

3GR

1

2

1

2

3GR

→

2GR

1

1

1

1

1

2

2GR

→

1GR

1

1

1

1

2