Infiniti FX35 / FX45. Manual - part 33

2. A/T position

3.High and low reverse clutch solenoid valve

AT-149

4. CAN communication line

5. Engine speed signal

6. Turbine revolution sensor

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

8. A/T fluid level and state

9. Control valve with TCM

OFF vehicle

10. High and low reverse clutch

Shock is too large
when changing D

→

or M3

→

M4.

ON vehicle

1. Accelerator pedal position sensor

2. A/T position

3. Input clutch solenoid valve

AT-143

4. CAN communication line

5. Engine speed signal

6. Turbine revolution sensor

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

8. A/T fluid level and state

9. Control valve with TCM

OFF vehicle

10. Input clutch

Shock is too large
when changing D

→

or M4

→

M5.

ON vehicle

1. Accelerator pedal position sensor

2. A/T position

3. Front brake solenoid valve

4. CAN communication line

5. Engine speed signal

6. Turbine revolution sensor

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

8. A/T fluid level and state

9. Control valve with TCM

OFF vehicle

10. Front brake (brake band)

11. Input clutch

No.

Items

Symptom

Condition

Diagnostic Item

Reference

page

TROUBLE DIAGNOSIS

AT-61

< SERVICE INFORMATION >

Shift
Shock

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

ON vehicle

1. Accelerator pedal position sensor

2. A/T position

3. CAN communication line

4. Engine speed signal

5. Turbine revolution sensor

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

7. A/T fluid level and state

8. Control valve with TCM

OFF vehicle

9. Front brake (brake band)

10. Input clutch

11. High and low reverse clutch

12. Direct clutch

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

ON vehicle

1. Accelerator pedal position sensor

2. A/T position

3. Engine speed signal

4. CAN communication line

5. Turbine revolution sensor

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

7. A/T fluid level and state

8. Control valve with TCM

OFF vehicle

9. Front brake (brake band)

10. Input clutch

11. High and low reverse clutch

12. Direct clutch

Shock is too large for
lock-up.

ON vehicle

1. Accelerator pedal position sensor

2. A/T position

3. Engine speed signal

4. CAN communication line

5. Turbine revolution sensor

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

7. Torque converter clutch solenoid valve

AT-124

8. A/T fluid level and state

9. Control valve with TCM

OFF vehicle

10. Torque converter

AT-267

No.

Items

Symptom

Condition

Diagnostic Item

Reference

page

AT-62

< SERVICE INFORMATION >

TROUBLE DIAGNOSIS

Shift
Shock

Shock is too large dur-
ing engine brake.

ON vehicle

1. Accelerator pedal position sensor

2. A/T position

3. CAN communication line

4. A/T fluid level and state

5. Control valve with TCM

OFF vehicle

6. Front brake (brake band)

7. Input clutch

8. High and low reverse clutch

9. Direct clutch

No Up
Shift

Gear does not change
from D

to D

or from

M1to M2.
Refer to

AT-182, "A/T

ON vehicle

1. A/T fluid level and state

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

3. Direct clutch solenoid valve

4. Line pressure test

5. CAN communication line

6. Control valve with TCM

OFF vehicle

7. Direct clutch

Gear does not change
from D

to D

or from

M2 to M3.
Refer to

AT-184, "A/T

ON vehicle

1. A/T fluid level and state

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

3. High and low reverse clutch solenoid valve

AT-149

4. Line pressure test

5. CAN communication line

6. Control valve with TCM

OFF vehicle

7. High and low reverse clutch

Gear does not change
from D

to D

or from

M3 to M4.
Refer to

AT-186, "A/T

ON vehicle

1. A/T fluid level and state

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

3. Input clutch solenoid valve

AT-143

4. Front brake solenoid valve

5. Line pressure test

6. CAN communication line

7. Control valve with TCM

OFF vehicle

8. Input clutch

No Up
Shift

Gear does not change
from D

to D

or from

M4 to M5.
Refer to

AT-188, "A/T

ON vehicle

1. A/T fluid level and state

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

3. Front brake solenoid valve

4. Direct clutch solenoid valve

5. Turbine revolution sensor

6. Line pressure test

7. CAN communication line

8. Control valve with TCM

OFF vehicle

9. Front brake (brake band)

AT-267

10. Input clutch

No.

Items

Symptom

Condition

Diagnostic Item

Reference

page

TROUBLE DIAGNOSIS

AT-63

< SERVICE INFORMATION >

No Down
Shift

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

ON vehicle

1. A/T fluid level and state

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

3. Front brake solenoid valve

4. Direct clutch solenoid valve

5. CAN communication line

6. Line pressure test

7. Control valve with TCM

OFF vehicle

8. Front brake (brake band)

AT-267

9. Input clutch

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

ON vehicle

1. A/T fluid level and state

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

3. Input clutch solenoid valve

AT-143

4. Front brake solenoid valve

5. CAN communication line

6. Line pressure test

7. Control valve with TCM

OFF vehicle

8. Input clutch

No Down
Shift

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

ON vehicle

1. A/T fluid level and state

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

3. High and low reverse clutch solenoid valve

AT-149

4. CAN communication line

5. Line pressure test

6. Control valve with TCM

OFF vehicle

7. High and low reverse clutch

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

ON vehicle

1. A/T fluid level and state

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

3. Direct clutch solenoid valve

4. CAN communication line

5. Line pressure test

6. Control valve with TCM

OFF vehicle

7. Direct clutch