2005 INFINITI FX35 torque

TROUBLE DIAGNOSIS AT-55
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2005 July 2005 FX
6. Start the engine, then measure the line pressure at both idle and
the stall speed.
CAUTION:

Keep the brake pedal pressed all the way down during
measurement.

When measuring the line pressure at the stall speed,
refer to AT- 5 2 , "
STALL TEST" .
7. After the measurements are complete, install the oil pressure detection plug and tighten to the specified torque.
CAUTION:

Do not reuse the O-ring.

Apply ATF to the O-ring.
Line Pressure
Judgement of Line Pressure Test
:7.3 N·m (0.74 kg-m, 65 in-lb)SAT493G
Engine speed Line pressure [kPa (kg/cm
2 , psi)]
“R” position “D”, “M” positions
At idle speed 425 - 465 (4.3 - 4.8, 62 - 67) 379 - 428 (3.9 - 4.4, 55 - 62)
At stall speed 1,605 - 1,950 (16.4 - 19.9, 233 - 283) 1,310 - 1,500 (13.4 - 15.3, 190 - 218)
Judgement Possible cause
Idle speed Low for all positions
(“P”, “R”, “N”, “D”,
“M”) Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example

Oil pump wear

Pressure regulator valve or plug sticking or spring fatigue

Oil strainer
oil pump
pressure regulator valve passage oil leak

Engine idle speed too low
Only low for a spe-
cific position Possible causes include an oil pressure leak in a passage or device related to the position after
the pressure is distributed by the manual valve.
High Possible causes include a sensor malfunction or malfunction in the line pressure adjustment func-
tion.
For example

Accelerator pedal position signal malfunction

ATF temperature sensor malfunction

Line pressure solenoid malfunction (sticking in OFF state, filter clog, cut line)

Pressure regulator valve or plug sticking

AT-66
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
6
Shift
Shock Shock is too large for
downshift when accel-
erator pedal is
pressed. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 3
2. Control linkage adjustmentAT- 2 3 5
3. CAN communication lineAT- 1 0 6
4. Engine speed signalAT- 1 2 3
5. Turbine revolution sensorAT- 1 4 1
6. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
7. A/T fluid level and state AT- 5 2
8. Control valve with TCMAT- 2 4 3
OFF vehicle 9. Front brake (brake band)
AT- 2 7 810. Input clutch AT- 3 1 3
11. High and low reverse clutchAT- 3 2 3
12. Direct clutchAT- 3 2 6
7 Shock is too large for
upshift when acceler-
ator pedal is released. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 3
2. Control linkage adjustmentAT- 2 3 5
3. Engine speed signalAT- 1 2 3
4. CAN communication lineAT- 1 0 6
5. Turbine revolution sensorAT- 1 4 1
6. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
7. A/T fluid level and state AT- 5 2
8. Control valve with TCMAT- 2 4 3
OFF vehicle 9. Front brake (brake band)
AT- 2 7 810. Input clutch AT- 3 1 3
11. High and low reverse clutch AT- 3 2 3
12. Direct clutch AT- 3 2 6
8 Shock is too large for
lock-up. ON vehicle 1. Accelerator pedal position sensor
AT- 1 3 3
2. Control linkage adjustmentAT- 2 3 5
3. Engine speed signalAT- 1 2 3
4. CAN communication lineAT- 1 0 6
5. Turbine revolution sensorAT- 1 4 1
6. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
7. Torque converter clutch solenoid valve AT- 1 2 5
8. A/T fluid level and state AT- 5 2
9. Control valve with TCMAT- 2 4 3
OFF vehicle 10. Torque converter AT- 2 9 0
No. Items Symptom Condition Diagnostic Item Reference
page

AT-72
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
23
Slips/Will
Not
Engage Vehicle cannot be
started from D
1 .
Refer to AT-205,
"Vehicle Cannot Be
Started from D1" . ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Accelerator pedal position sensorAT- 1 3 3
3. Line pressure test AT- 5 4
4. CAN communication lineAT- 1 0 6
5. Control valve with TCMAT- 2 4 3
OFF vehicle 6. Torque converter
AT- 2 9 0
7. Oil pump assemblyAT- 3 0 8
8. 3rd one-way clutch AT- 3 11
9. 1st one-way clutch AT- 3 1 8
10. Gear systemAT- 2 7 8
11. Reverse brakeAT- 2 9 0
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-18, "
Cross-Sectional View (2WD Models)" or AT-19,
"Cross-Sectional View (AWD Models)" ) AT- 2 9 0
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-Sectional View (2WD Models)" or AT- 1 9 , "Cross-
Sectional View (AWD Models)" ) AT- 2 9 0
24Does not lock-up.
Refer to AT-217, "A/T
Does Not Perform
Lock-up" . ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Line pressure testAT- 5 4
3. Engine speed signalAT- 1 2 3
4. Turbine revolution sensorAT- 1 4 1
5. Torque converter clutch solenoid valveAT- 1 2 5
6. CAN communication lineAT- 1 0 6
7. Control valve with TCMAT- 2 4 3
OFF vehicle 8. Torque converter
AT- 2 9 09. Oil pump assemblyAT- 3 0 8
25 Does not hold lock-up
condition.
Refer to AT-219, "A/T
Does Not Hold Lock-
up Condition" . ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Line pressure testAT- 5 4
3. Engine speed signalAT- 1 2 3
4. Turbine revolution sensorAT- 1 4 1
5. Torque converter clutch solenoid valveAT- 1 2 5
6. CAN communication lineAT- 1 0 6
7. Control valve with TCMAT- 2 4 3
OFF vehicle 8. Torque converter
AT- 2 9 09. Oil pump assemblyAT- 3 0 8
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: 2005 July 2005 FX26
Slips/Will
Not
Engage Lock-up is not
released.
Refer to AT-221,
"Lock-up Is Not
Released" . ON vehicle 1. A/T fluid level and state
AT- 5 2
2. Line pressure testAT- 5 4
3. Engine speed signalAT-123
4. Turbine revolution sensorAT-141
5. Torque converter clutch solenoid valveAT-125
6. CAN communication lineAT-106
7. Control valve with TCMAT-243
OFF vehicle 8. Torque converter
AT-2909. Oil pump assemblyAT-308
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 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
3. ATF pressure switch 5 and direct clutch solenoid valve AT-179,
AT-158
4. CAN communication line AT-106
5. Line pressure test AT- 5 4
6. Control valve with TCMAT-243
OFF vehicle 7. Torque converter
AT-290
8. Oil pump assemblyAT-308
9. 3rd one-way clutch AT- 3 11
10. Gear systemAT-278
11. Direct clutchAT-326
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-Sectional View (2WD Models)" or AT-19, "Cross-
Sectional View (AWD Models)" ) AT-290
No. Items Symptom Condition Diagnostic Item
Reference
page

AT-74
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
28
Slips/Will
Not
Engage No shock at all or the
clutch slips when
vehicle changes
speed D
2 → D3 or
M
2 → M3 . ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT- 1 8 1,
AT- 1 6 2
4. CAN communication line AT- 1 0 6
5. Line pressure test AT- 5 4
6. Control valve with TCMAT- 2 4 3
OFF vehicle 7. Torque converter
AT- 2 9 0
8. Oil pump assemblyAT- 3 0 8
9. 3rd one-way clutch AT- 3 11
10. Gear systemAT- 2 7 8
11. High and low reverse clutchAT- 3 2 3
12. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-18, "
Cross-Sectional View (2WD Models)" or AT-19,
"Cross-Sectional View (AWD Models)" ) AT- 2 9 0
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-Sectional View (2WD Models)" or AT- 1 9 , "Cross-
Sectional View (AWD Models)" ) AT- 2 9 0
29 No shock at all or the
clutch slips when
vehicle changes
speed D
3 → D4 or
M
3 → M4 . ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
3. ATF pressure switch 3 and input clutch solenoid valve AT- 1 7 7,
AT- 1 5 0

4. ATF pressure switch 1 and front brake solenoid valve AT- 1 7 5
,
AT- 1 5 4
5. CAN communication line AT- 1 0 6
6. Line pressure test AT- 5 4
7. Control valve with TCMAT- 2 4 3
OFF vehicle 8. Torque converter
AT- 2 9 0
9. Oil pump assemblyAT- 3 0 8
10. Input clutchAT- 3 1 3
11. Gear systemAT- 2 7 8
12. High and low reverse clutchAT- 3 2 3
13. Direct clutchAT- 3 2 6
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: 2005 July 2005 FX
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 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
3. ATF pressure switch 1 and front brake solenoid valve AT-175,
AT-154
4. ATF pressure switch 5 and direct clutch solenoid valve AT-179,
AT-158
5. CAN communication line AT-106
6. Line pressure test AT- 5 4
7. Control valve with TCMAT-243
OFF vehicle 8. Torque converter
AT-290
9. Oil pump assemblyAT-308
10. Front brake (brake band)AT-290
11. Input clutchAT-313
12. Gear systemAT-278
13. High and low reverse clutchAT-323
31 When you press the
accelerator pedal and
shift speed D5 → D4
or M
5 → M4 the
engine idles or the
transmission slips. ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
3. ATF pressure switch 1 and front brake solenoid valve AT-175,
AT-154
4. ATF pressure switch 5 and direct clutch solenoid valve AT-179,
AT-158
5. CAN communication line AT-106
6. Line pressure test AT- 5 4
7. Control valve with TCMAT-243
OFF vehicle 8. Torque converter
AT-290
9. Oil pump assemblyAT-308
10. Input clutchAT-313
11. Gear systemAT-278
12. High and low reverse clutchAT-323
13. Direct clutchAT-326
No. Items Symptom Condition Diagnostic Item Reference
page

AT-76
TROUBLE DIAGNOSIS
Revision: 2005 July 2005 FX
32
Slips/Will
Not
Engage When pressing the
accelerator pedal and
shifting speed D4 →
D
3 or M4 → M3 the
engine idles or the
transmission slips. ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
3. ATF pressure switch 3 and input clutch solenoid valve AT- 1 7 7,
AT- 1 5 0
4. ATF pressure switch 1 and front brake solenoid valve AT- 1 7 5,
AT- 1 5 4
5. CAN communication line AT- 1 0 6
6. Line pressure test AT- 5 4
7. Control valve with TCMAT- 2 4 3
OFF vehicle 8. Torque converter
AT- 2 9 0
9. Oil pump assemblyAT- 3 0 8
10. 3rd one-way clutch AT- 3 11
11. Gear systemAT- 2 7 8
12. High and low reverse clutchAT- 3 2 3
13. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-18, "
Cross-Sectional View (2WD Models)" or AT-19,
"Cross-Sectional View (AWD Models)" ) AT- 2 9 0
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-Sectional View (2WD Models)" or AT- 1 9 , "Cross-
Sectional View (AWD Models)" ) AT- 2 9 0
33 When pressing the
accelerator pedal and
shifting speed D3 →
D
2 or M3 → M2 the
engine idles or the
transmission slips. ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 4 3
3. ATF pressure switch 6, high and low reverse clutch sole-
noid valve AT- 1 8 1,
AT- 1 6 2
4. ATF pressure switch 5 and direct clutch solenoid valve AT- 1 7 9,
AT- 1 5 8
5. CAN communication line AT- 1 0 6
6. Line pressure test AT- 5 4
7. Control valve with TCMAT- 2 4 3
OFF vehicle 8. Torque converter
AT- 2 9 0
9. Oil pump assemblyAT- 3 0 8
10. 3rd one-way clutch AT- 3 11
11. Gear systemAT- 2 7 8
12. Direct clutchAT- 3 2 6
13. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-Sectional View (2WD Models)" or AT- 1 9 , "Cross-
Sectional View (AWD Models)" ) AT- 2 9 0
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: 2005 July 2005 FX
34
Slips/Will
Not
Engage When pressing the
accelerator pedal and
shifting speed D2 →
D
1 or M2 → M1 the
engine idles or the
transmission slips. ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT-143
3. ATF pressure switch 5 and direct clutch solenoid valve AT-179,
AT-158
4. CAN communication line AT-106
5. Line pressure test AT- 5 4
6. Control valve with TCMAT-243
OFF vehicle 7. Torque converter
AT-290
8. Oil pump assemblyAT-308
9. 3rd one-way clutch AT- 3 11
10. 1st one-way clutchAT-318
11. Gear systemAT-278
12. Reverse brakeAT-290
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)" or AT- 1 9 ,
"Cross-Sectional View (AWD Models)" ) AT-290
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-Sectional View (2WD Models)" or AT-19, "Cross-
Sectional View (AWD Models)" ) AT-290
35
With selector lever in
“D” position, accelera-
tion is extremely poor. ON vehicle
1. A/T fluid level and state
AT- 5 2
2. Line pressure testAT- 5 4
3. Accelerator pedal position sensorAT-133
4. CAN communication lineAT-106
5. PNP switch AT- 11 4
6. Control linkage adjustmentAT-235
7. Control valve with TCMAT-243
OFF vehicle 8. Torque converter
AT-290
9. Oil pump assemblyAT-308
10. 1st one-way clutchAT-318
11. Gear systemAT-278
12. Reverse brakeAT-290
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)" or AT- 1 9 ,
"Cross-Sectional View (AWD Models)" ) AT-290
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-Sectional View (2WD Models)" or AT-19, "Cross-
Sectional View (AWD Models)" ) AT-290
No. Items Symptom Condition Diagnostic Item
Reference
page