2007 INFINITI FX35 AT 104

TROUBLE DIAGNOSIS AT-65
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
3
Shift
Shock Shock is too large
when changing D2 →
D
3 or M2 → M3 . ON vehicle 1. Accelerator pedal position sensor
AT-131
2. A/T positionAT-231
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT-177,
AT-158
4. CAN communication line AT-104
5. Engine speed signalAT-123
6. Turbine revolution sensor AT- 11 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
8. A/T fluid level and state AT- 5 3
9. Control valve with TCMAT-239
OFF vehicle 10. High and low reverse clutch AT-329
4 Shock is too large
when changing D3 →
D
4 or M3 → M4 . ON vehicle 1. Accelerator pedal position sensor
AT-131
2. A/T positionAT-231
3. ATF pressure switch 3 and input clutch solenoid valve AT-173,
AT-146
4. CAN communication line AT-104
5. Engine speed signalAT-123
6. Turbine revolution sensor AT- 11 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
8. A/T fluid level and state AT- 5 3
9. Control valve with TCMAT-239
OFF vehicle 10. Input clutch AT-317
5 Shock is too large
when changing D4 →
D
5 or M4 → M5 . ON vehicle 1. Accelerator pedal position sensor
AT-131
2. A/T positionAT-231
3. ATF pressure switch 1 and front brake solenoid valve AT-171,
AT-150

4. CAN communication line AT-104
5. Engine speed signalAT-123
6. Turbine revolution sensor AT- 11 6
7. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
8. A/T fluid level and state AT- 5 3
9. Control valve with TCMAT-239
OFF vehicle 10. Front brake (brake band)
AT-27411. Input clutchAT-317
No. Items Symptom Condition Diagnostic Item Reference
page

TROUBLE DIAGNOSIS AT-67
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX459 Shift
Shock Shock is too large
during engine brake. ON vehicle
1. Accelerator pedal position sensor
AT-131
2. A/T positionAT-231
3. CAN communication lineAT-104
4. A/T fluid level and state AT- 5 3
5. Control valve with TCMAT-239
OFF vehicle 6. Front brake (brake band)
AT-2747. Input clutch AT-317
8. High and low reverse clutchAT-329
9. Direct clutch AT-332
10
No Up
Shift Gear does not change
from D
1 → D2 or from
M
1 → M2 .
Refer to AT-204, "
A/T
Does Not Shift: D1 →
D2" . ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
4. Line pressure test AT- 5 4
5. CAN communication lineAT-104
6. Control valve with TCMAT-239
OFF vehicle 7. Direct clutch AT-332
11 Gear does not change
from D
2 → D3 or from
M
2 → M3 .
Refer to AT-206, "
A/T
Does Not Shift: D2 →
D3" . ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT-177,
AT-158
4. Line pressure test AT- 5 4
5. CAN communication lineAT-104
6. Control valve with TCMAT-239
OFF vehicle 7. High and low reverse clutch AT-329
12 Gear does not change
from D
3 → D4 or from
M
3 → M4 .
Refer to AT-208, "
A/T
Does Not Shift: D3 →
D4" . ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 3 and input clutch solenoid valve AT-173,
AT-146
4. ATF pressure switch 1 and front brake solenoid valve AT-171,
AT-150
5. Line pressure test AT- 5 4
6. CAN communication lineAT-104
7. Control valve with TCMAT-239
OFF vehicle 8. Input clutch AT-317
No. Items Symptom Condition Diagnostic Item Reference
page

TROUBLE DIAGNOSIS AT-69
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX4516
No Down
Shift In “D” or “M” position,
does not downshift to
2nd gear. ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139

3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT-177
,
AT-158
4. CAN communication line AT-104
5. Line pressure test AT- 5 4
6. Control valve with TCMAT-239
OFF vehicle 7. High and low reverse clutch AT-329
17 In “D” or “M” position,
does not downshift to
1st gear. ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
4. CAN communication line AT-104
5. Line pressure test AT- 5 4
6. Control valve with TCMAT-239
OFF vehicle 7. Direct clutch AT-332
18 Slips/Will
Not
Engage When “D” or “M” posi-
tion, remains in 1st
gear. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. Direct clutch solenoid valve AT-154
4. Line pressure test AT- 5 4
5. CAN communication lineAT-104
6. Control valve with TCMAT-239
OFF vehicle 7. 3rd one-way clutch
AT-315
8. 1st one-way clutchAT-323
9. Gear systemAT-274
10. Reverse brakeAT-294
11. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 8 , "
Cross-sectional View (2WD Models)" , AT-19,
"Cross-sectional View (VQ35DE Models for AWD)" or AT-
20, "Cross-sectional View (VK45DE Models for AWD)" ) AT-294
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT- 1 9 , "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT-20, "Cross-
sectional View (VK45DE Models for AWD)" ) AT-294
No. Items Symptom Condition Diagnostic Item
Reference
page

TROUBLE DIAGNOSIS AT-71
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
21
Slips/Will
Not
Engage When “D” or “M” posi-
tion, remains in 4th
gear. ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 3 and input clutch solenoid valve AT-173,
AT-146
4. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
5. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT-177,
AT-158
6. Low coast brake solenoid valve AT-162
7. Front brake solenoid valveAT-150
8. Line pressure test AT- 5 4
9. CAN communication lineAT-104
10. Control valve with TCMAT-239
OFF vehicle 11. Input clutch
AT-31712. Gear systemAT-274
13. High and low reverse clutchAT-329
14. Direct clutchAT-332
22 When “D” or “M” posi-
tion, remains in 5th
gear. ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139

3. ATF pressure switch 1 and front brake solenoid valve AT-171
,
AT-150
4. Line pressure test AT- 5 4
5. CAN communication lineAT-104
6. Control valve with TCMAT-239
OFF vehicle 7. Front brake (brake band)
AT-2948. Input clutchAT-317
9. Gear systemAT-274
10. High and low reverse clutchAT-329
No. Items Symptom Condition Diagnostic Item Reference
page

TROUBLE DIAGNOSIS AT-73
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX4526
Slips/Will
Not
Engage Lock-up is not
released.
Refer to AT-217,
"Lock-up Is Not
Released" . ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. Engine speed signalAT-123
4. Turbine revolution sensor AT- 11 6
5. Torque converter clutch solenoid valveAT-125
6. CAN communication lineAT-104
7. Control valve with TCMAT-239
OFF vehicle 8. Torque converter
AT-2949. Oil pump assemblyAT-312
27 No shock at all or the
clutch slips when
vehicle changes
speed D
1 → D2 or
M
1 → M2 . ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
4. CAN communication line AT-104
5. Line pressure test AT- 5 4
6. Control valve with TCMAT-239
OFF vehicle 7. Torque converter
AT-294
8. Oil pump assemblyAT-312
9. 3rd one-way clutchAT-315
10. Gear systemAT-274
11. Direct clutchAT-332
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT- 1 9 , "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT-20, "Cross-
sectional View (VK45DE Models for AWD)" ) AT-294
No. Items Symptom Condition Diagnostic Item
Reference
page

TROUBLE DIAGNOSIS AT-75
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
30
Slips/Will
Not
Engage No shock at all or the
clutch slips when
vehicle changes
speed D
4 → D5 or
M
4 → M5 . ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 1 and front brake solenoid valve AT-171,
AT-150
4. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
5. CAN communication line AT-104
6. Line pressure test AT- 5 4
7. Control valve with TCMAT-239
OFF vehicle 8. Torque converter
AT-294
9. Oil pump assemblyAT-312
10. Front brake (brake band)AT-294
11. Input clutchAT-317
12. Gear systemAT-274
13. High and low reverse clutchAT-329
31 When you press the
accelerator pedal and
shift speed D5 → D4
or M
5 → M4 the
engine idles or the A/
T slips. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 1 and front brake solenoid valve AT-171,
AT-150
4. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
5. CAN communication line AT-104
6. Line pressure test AT- 5 4
7. Control valve with TCMAT-239
OFF vehicle 8. Torque converter
AT-294
9. Oil pump assemblyAT-312
10. Input clutchAT-317
11. Gear systemAT-274
12. High and low reverse clutchAT-329
13. Direct clutchAT-332
No. Items Symptom Condition Diagnostic Item Reference
page

TROUBLE DIAGNOSIS AT-77
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
34
Slips/Will
Not
Engage When pressing the
accelerator pedal and
shifting speed D2 →
D
1 or M2 → M1 the
engine idles or the A/
T slips. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-139
3. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
4. CAN communication line AT-104
5. Line pressure test AT- 5 4
6. Control valve with TCMAT-239
OFF vehicle 7. Torque converter
AT-294
8. Oil pump assemblyAT-312
9. 3rd one-way clutchAT-315
10. 1st one-way clutchAT-323
11. Gear systemAT-274
12. Reverse brakeAT-294
13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 8 , "
Cross-sectional View (2WD Models)" , AT-19,
"Cross-sectional View (VQ35DE Models for AWD)" or AT-
20, "Cross-sectional View (VK45DE Models for AWD)" ) AT-294
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT- 1 9 , "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT-20, "Cross-
sectional View (VK45DE Models for AWD)" ) AT-294
35
With selector lever in
“D” position, accelera-
tion is extremely poor. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. Accelerator pedal position sensorAT-131
4. CAN communication lineAT-104
5. PNP switch AT- 11 2
6. A/T positionAT-231
7. Control valve with TCMAT-239
OFF vehicle 8. Torque converter
AT-294
9. Oil pump assemblyAT-312
10. 1st one-way clutchAT-323
11. Gear systemAT-274
12. Reverse brakeAT-294
13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 8 , "
Cross-sectional View (2WD Models)" , AT-19,
"Cross-sectional View (VQ35DE Models for AWD)" or AT-
20, "Cross-sectional View (VK45DE Models for AWD)" ) AT-294
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT- 1 9 , "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT-20, "Cross-
sectional View (VK45DE Models for AWD)" ) AT-294
No. Items Symptom Condition Diagnostic Item
Reference
page

TROUBLE DIAGNOSIS AT-79
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
38
Slips/Will
Not
Engage While accelerating in
2nd, engine races or
slippage occurs. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. Accelerator pedal position sensorAT-131
4. CAN communication lineAT-104
5. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
6. Control valve with TCM AT-239
OFF vehicle 7. Torque converter
AT-294
8. Oil pump assemblyAT-312
9. 3rd one-way clutchAT-315
10. Gear systemAT-274
11. Direct clutchAT-332
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT- 1 9 , "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT-20, "Cross-
sectional View (VK45DE Models for AWD)" ) AT-294
39
While accelerating in
3rd, engine races or
slippage occurs. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. Accelerator pedal position sensorAT-131
4. CAN communication lineAT-104
5. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT-177,
AT-158

6. Control valve with TCM AT-239
OFF vehicle 7. Torque converter
AT-294
8. Oil pump assemblyAT-312
9. 3rd one-way clutchAT-315
10. Gear systemAT-274
11. High and low reverse clutchAT-329
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT- 1 8 , "
Cross-sectional View (2WD Models)" , AT-19,
"Cross-sectional View (VQ35DE Models for AWD)" or AT-
20, "Cross-sectional View (VK45DE Models for AWD)" ) AT-294
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT- 1 9 , "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT-20, "Cross-
sectional View (VK45DE Models for AWD)" ) AT-294
No. Items Symptom Condition Diagnostic Item
Reference
page