Infiniti M35/M45 Y50. Manual - part 38

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

3. ATF pressure switch 1 and front brake solenoid valve

AT-172

AT-151

4. ATF pressure switch 5 and direct clutch solenoid valve

5. CAN communication line

6. Line pressure test

7. Control valve with TCM

OFF vehicle

8. Torque converter

9. Oil pump assembly

10. Front brake (brake band)

11. Input clutch

AT-327

12. Gear system

13. High and low reverse clutch

AT-339

When you press the
accelerator pedal and
shift speed D

→

or M

→

the

engine idles or the A/
T slips.

ON vehicle

1. A/T fluid level and state

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

3. ATF pressure switch 1 and front brake solenoid valve

AT-172

AT-151

4. ATF pressure switch 5 and direct clutch solenoid valve

5. CAN communication line

6. Line pressure test

7. Control valve with TCM

OFF vehicle

8. Torque converter

9. Oil pump assembly

10. Input clutch

11. Gear system

12. High and low reverse clutch

AT-339

13. Direct clutch

AT-341

No.

Item

Symptom

Condition

Diagnostic Item

Reference

page

AT-76

TROUBLE DIAGNOSIS

Slips/Will
Not
Engage

When you press the
accelerator pedal and
shift speed D

→

or M

→

the

engine idles or the A/
T slips.

ON vehicle

1. A/T fluid level and state

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

3. ATF pressure switch 3 and input clutch solenoid valve

AT-174

AT-147

4. ATF pressure switch 1 and front brake solenoid valve

AT-172

AT-151

5. CAN communication line

6. Line pressure test

7. Control valve with TCM

OFF vehicle

8. Torque converter

9. Oil pump assembly

10. 3rd one-way clutch

11. Gear system

AT-17, "Cross-Sectional View (VQ35DE Models for 2WD)"

12. High and low reverse clutch

AT-339

13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to

AT-18, "Cross-Sectional View (VK45DE Models for 2WD)"

14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to

When you press the
accelerator pedal and
shift speed D

→

or M

→

the

engine idles or the A/
T slips.

ON vehicle

1. A/T fluid level and state

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

3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve

AT-178

AT-159

4. ATF pressure switch 5 and direct clutch solenoid valve

5. CAN communication line

6. Line pressure test

7. Control valve with TCM

OFF vehicle

8. Torque converter

9. Oil pump assembly

10. 3rd one-way clutch

11. Gear system

12. Direct clutch

AT-341

13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to

No.

Item

Symptom

Condition

Diagnostic Item

Reference

page

TROUBLE DIAGNOSIS

AT-77

Slips/Will
Not
Engage

When you press the
accelerator pedal and
shift speed D

→

or M

→

the

engine idles or the A/
T slips.

ON vehicle

1. A/T fluid level and state

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

3. ATF pressure switch 5 and direct clutch solenoid valve

4. CAN communication line

5. Line pressure test

6. Control valve with TCM

OFF vehicle

7. Torque converter

8. Oil pump assembly

9. 3rd one-way clutch

10. 1st one-way clutch

AT-333

11. Gear system

12. Reverse brake

AT-17, "Cross-Sectional View (VQ35DE Models for 2WD)"

13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to

AT-18, "Cross-Sectional View (VK45DE Models for 2WD)"

14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to

With selector lever in
“D” position, accelera-
tion is extremely poor.

ON vehicle

1. A/T fluid level and state

2. Line pressure test

3. Accelerator pedal position sensor

AT-132

4. CAN communication line

5. PNP switch

AT-113

6. A/T position

AT-227

7. Control valve with TCM

OFF vehicle

8. Torque converter

9. Oil pump assembly

10. 1st one-way clutch

AT-333

11. Gear system

12. Reverse brake

AT-17, "Cross-Sectional View (VQ35DE Models for 2WD)"

13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to

AT-18, "Cross-Sectional View (VK45DE Models for 2WD)"

14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to

No.

Item

Symptom

Condition

Diagnostic Item

Reference

page

AT-78

TROUBLE DIAGNOSIS

Slips/Will
Not
Engage

With selector lever in
“R” position, accelera-
tion is extremely poor.

ON vehicle

1. A/T fluid level and state

2. Line pressure test

3. Accelerator pedal position sensor

AT-132

4. ATF pressure switch 6, high and low reverse clutch sole-
noid valve

AT-178

AT-159

5. CAN communication line

6. PNP switch

AT-113

7. A/T position

AT-227

8. Control valve with TCM

OFF vehicle

9. Gear system

10. Output shaft

11. Reverse brake

While starting off by
accelerating in 1st,
engine races or slip-
page occurs.

ON vehicle

1. A/T fluid level and state

2. Line pressure test

3. Accelerator pedal position sensor

AT-132

4. CAN communication line

5. Control valve with TCM

OFF vehicle

6. Torque converter

7. Oil pump assembly

8. 3rd one-way clutch

9. 1st one-way clutch

AT-333

10. Gear system

11. Reverse brake

AT-17, "Cross-Sectional View (VQ35DE Models for 2WD)"

12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to

AT-18, "Cross-Sectional View (VK45DE Models for 2WD)"

13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to