Infiniti FX35 / FX45. Manual — part 34
AT-64
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
18
Slips/Will
Not En-
gage
When “D” or “M” posi-
tion, remains in 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. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. 3rd one-way clutch
8. 1st one-way clutch
9. Gear system
10. Reverse brake
11. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
16, "Cross-Sectional View (2WD Models)"
Sectional View (VQ35DE Models for AWD)"
Sectional View (VK45DE Models for AWD)"
)
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
TROUBLE DIAGNOSIS
AT-65
< SERVICE INFORMATION >
D
E
F
G
H
I
J
K
L
M
A
B
AT
N
O
P
19
Slips/Will
Not En-
gage
When “D” or “M” posi-
tion, remains in 2nd
gear.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. Low coast brake solenoid valve
4. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. 3rd one-way clutch
8. Gear system
9. Direct clutch
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
)
20
When “D” or “M” posi-
tion, remains in 3rd
gear.
ON vehicle
1. A/T fluid level and state
2. Vehicle speed sensor A/T and vehicle speed sensor MTR
3. Line pressure test
4. CAN communication line
5. Control valve with TCM
OFF vehicle
6. 3rd one-way clutch
7. Gear system
8. High and low reverse clutch
9. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
16, "Cross-Sectional View (2WD Models)"
Sectional View (VQ35DE Models for AWD)"
Sectional View (VK45DE Models for AWD)"
10. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
)
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
AT-66
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
21
Slips/Will
Not En-
gage
When “D” or “M” posi-
tion, remains in 4th
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
4. Direct clutch solenoid valve
5. High and low reverse clutch solenoid valve
6. Low coast brake solenoid valve
7. Front brake solenoid valve
8. Line pressure test
9. CAN communication line
10. Control valve with TCM
OFF vehicle
11. Input clutch
12. Gear system
13. High and low reverse clutch
14. Direct clutch
22
When “D” or “M” posi-
tion, remains in 5th
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. Line pressure test
5. CAN communication line
6. Control valve with TCM
OFF vehicle
7. Front brake (brake band)
8. Input clutch
9. Gear system
10. High and low reverse clutch
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
TROUBLE DIAGNOSIS
AT-67
< SERVICE INFORMATION >
D
E
F
G
H
I
J
K
L
M
A
B
AT
N
O
P
23
Slips/Will
Not En-
gage
Vehicle cannot be
started from D
1
.
Refer to
hicle Cannot Be Start-
ed from D
ON vehicle
1. A/T fluid level and state
2. Accelerator pedal position sensor
3. Line pressure test
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
10. Gear system
11. Reverse brake
12. Forward one-way clutch (Parts behind drum support is im-
possible to perform inspection by disassembly. Refer to
16, "Cross-Sectional View (2WD Models)"
Sectional View (VQ35DE Models for AWD)"
Sectional View (VK45DE Models for AWD)"
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to
)
24
Does not lock-up.
Refer to
ON vehicle
1. A/T fluid level and state
2. Line pressure test
3. Engine speed signal
4. Turbine revolution sensor
5. Torque converter clutch solenoid valve
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Torque converter
9. Oil pump assembly
25
Does not hold lock-up
condition.
Refer to
Does Not Hold Lock-
up Condition"
ON vehicle
1. A/T fluid level and state
2. Line pressure test
3. Engine speed signal
4. Turbine revolution sensor
5. Torque converter clutch solenoid valve
6. CAN communication line
7. Control valve with TCM
OFF vehicle
8. Torque converter
9. Oil pump assembly
No.
Items
Symptom
Condition
Diagnostic Item
Reference
page
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