Infiniti FX35 / FX45. Manual — part 33

AT-60

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS

3

Shift
Shock

Shock is too large
when changing D

2

→

D

3

or M2

→

M3.

ON vehicle

1. Accelerator pedal position sensor

AT-130

2. A/T position

AT-207

3.High and low reverse clutch solenoid valve

AT-149

4. CAN communication line

AT-94

5. Engine speed signal

AT-112

6. Turbine revolution sensor

AT-106

7. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

8. A/T fluid level and state

AT-49

9. Control valve with TCM

AT-215

OFF vehicle

10. High and low reverse clutch

AT-301

4

Shock is too large
when changing D

3

→

D

4

or M3

→

M4.

ON vehicle

1. Accelerator pedal position sensor

AT-130

2. A/T position

AT-207

3. Input clutch solenoid valve

AT-143

4. CAN communication line

AT-94

5. Engine speed signal

AT-112

6. Turbine revolution sensor

AT-106

7. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

8. A/T fluid level and state

AT-49

9. Control valve with TCM

AT-215

OFF vehicle

10. Input clutch

AT-289

5

Shock is too large
when changing D

4

→

D

5

or M4

→

M5.

ON vehicle

1. Accelerator pedal position sensor

AT-130

2. A/T position

AT-207

3. Front brake solenoid valve

AT-145

4. CAN communication line

AT-94

5. Engine speed signal

AT-112

6. Turbine revolution sensor

AT-106

7. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

8. A/T fluid level and state

AT-49

9. Control valve with TCM

AT-215

OFF vehicle

10. Front brake (brake band)

AT-249

11. Input clutch

AT-289

No.

Items

Symptom

Condition

Diagnostic Item

Reference

page

TROUBLE DIAGNOSIS

AT-61

< SERVICE INFORMATION >

D

E

F

G

H

I

J

K

L

M

A

B

AT

N

O

P

6

Shift
Shock

Shock is too large for
downshift when accel-
erator pedal is
pressed.

ON vehicle

1. Accelerator pedal position sensor

AT-130

2. A/T position

AT-207

3. CAN communication line

AT-94

4. Engine speed signal

AT-112

5. Turbine revolution sensor

AT-106

6. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

7. A/T fluid level and state

AT-49

8. Control valve with TCM

AT-215

OFF vehicle

9. Front brake (brake band)

AT-249

10. Input clutch

AT-289

11. High and low reverse clutch

AT-301

12. Direct clutch

AT-303

7

Shock is too large for
upshift when accelera-
tor pedal is released.

ON vehicle

1. Accelerator pedal position sensor

AT-130

2. A/T position

AT-207

3. Engine speed signal

AT-112

4. CAN communication line

AT-94

5. Turbine revolution sensor

AT-106

6. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

7. A/T fluid level and state

AT-49

8. Control valve with TCM

AT-215

OFF vehicle

9. Front brake (brake band)

AT-249

10. Input clutch

AT-289

11. High and low reverse clutch

AT-301

12. Direct clutch

AT-303

8

Shock is too large for
lock-up.

ON vehicle

1. Accelerator pedal position sensor

AT-130

2. A/T position

AT-207

3. Engine speed signal

AT-112

4. CAN communication line

AT-94

5. Turbine revolution sensor

AT-106

6. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

7. Torque converter clutch solenoid valve

AT-124

8. A/T fluid level and state

AT-49

9. Control valve with TCM

AT-215

OFF vehicle

10. Torque converter

AT-267

No.

Items

Symptom

Condition

Diagnostic Item

Reference

page

AT-62

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS

9

Shift
Shock

Shock is too large dur-
ing engine brake.

ON vehicle

1. Accelerator pedal position sensor

AT-130

2. A/T position

AT-207

3. CAN communication line

AT-94

4. A/T fluid level and state

AT-49

5. Control valve with TCM

AT-215

OFF vehicle

6. Front brake (brake band)

AT-249

7. Input clutch

AT-289

8. High and low reverse clutch

AT-301

9. Direct clutch

AT-303

10

No Up
Shift

Gear does not change
from D

1

to D

2

or from

M1to M2.
Refer to

AT-182, "A/T

Does Not Shift: D

1

→

D

2

"

.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-137

3. Direct clutch solenoid valve

AT-147

4. Line pressure test

AT-49

5. CAN communication line

AT-94

6. Control valve with TCM

AT-215

OFF vehicle

7. Direct clutch

AT-303

11

Gear does not change
from D

2

to D

3

or from

M2 to M3.
Refer to

AT-184, "A/T

Does Not Shift: D

2

→

D

3

"

.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

3. High and low reverse clutch solenoid valve

AT-149

4. Line pressure test

AT-49

5. CAN communication line

AT-94

6. Control valve with TCM

AT-215

OFF vehicle

7. High and low reverse clutch

AT-301

12

Gear does not change
from D

3

to D

4

or from

M3 to M4.
Refer to

AT-186, "A/T

Does Not Shift: D

3

→

D

4

"

.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

3. Input clutch solenoid valve

AT-143

4. Front brake solenoid valve

AT-145

5. Line pressure test

AT-49

6. CAN communication line

AT-94

7. Control valve with TCM

AT-215

OFF vehicle

8. Input clutch

AT-289

13

No Up
Shift

Gear does not change
from D

4

to D

5

or from

M4 to M5.
Refer to

AT-188, "A/T

Does Not Shift: D

4

→

D

5

"

.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

3. Front brake solenoid valve

AT-145

4. Direct clutch solenoid valve

AT-147

5. Turbine revolution sensor

AT-106

6. Line pressure test

AT-49

7. CAN communication line

AT-94

8. Control valve with TCM

AT-215

OFF vehicle

9. Front brake (brake band)

AT-267

10. Input clutch

AT-289

No.

Items

Symptom

Condition

Diagnostic Item

Reference

page

TROUBLE DIAGNOSIS

AT-63

< SERVICE INFORMATION >

D

E

F

G

H

I

J

K

L

M

A

B

AT

N

O

P

14

No Down
Shift

In “D” or “M” position,
does not downshift to
4th gear.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

3. Front brake solenoid valve

AT-145

4. Direct clutch solenoid valve

AT-147

5. CAN communication line

AT-94

6. Line pressure test

AT-49

7. Control valve with TCM

AT-215

OFF vehicle

8. Front brake (brake band)

AT-267

9. Input clutch

AT-289

15

In “D” or “M” position,
does not downshift to
3rd gear.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

3. Input clutch solenoid valve

AT-143

4. Front brake solenoid valve

AT-145

5. CAN communication line

AT-94

6. Line pressure test

AT-49

7. Control valve with TCM

AT-215

OFF vehicle

8. Input clutch

AT-289

16

No Down
Shift

In “D” or “M” position,
does not downshift to
2nd gear.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

3. High and low reverse clutch solenoid valve

AT-149

4. CAN communication line

AT-94

5. Line pressure test

AT-49

6. Control valve with TCM

AT-215

OFF vehicle

7. High and low reverse clutch

AT-301

17

In “D” or “M” position,
does not downshift to
1st gear.

ON vehicle

1. A/T fluid level and state

AT-49

2. Vehicle speed sensor A/T and vehicle speed sensor MTR

AT-108

,

AT-137

3. Direct clutch solenoid valve

AT-147

4. CAN communication line

AT-94

5. Line pressure test

AT-49

6. Control valve with TCM

AT-215

OFF vehicle

7. Direct clutch

AT-303

No.

Items

Symptom

Condition

Diagnostic Item

Reference

page