2007 INFINITI FX35 OIL

AT-80
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
40
Slips/Will
Not
Engage While accelerating in
4th, 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- 1 3 1
4. CAN communication lineAT- 1 0 4
5. ATF pressure switch 3 and input clutch solenoid valve AT- 1 7 3,
AT- 1 4 6
6. Control valve with TCM AT- 2 3 9
OFF vehicle 7. Torque converter
AT- 2 9 4
8. Oil pump assemblyAT- 3 1 2
9. Input clutchAT- 3 1 7
10. Gear systemAT- 2 7 4
11. High and low reverse clutchAT- 3 2 9
12. Direct clutchAT- 3 3 2
41 While accelerating in
5th, 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- 1 3 1
4. CAN communication lineAT- 1 0 4
5. ATF pressure switch 1 and front brake solenoid valve AT- 1 7 1,
AT- 1 5 0
6. Control valve with TCM AT- 2 3 9
OFF vehicle 7. Torque converter
AT- 2 9 4
8. Oil pump assembly AT- 3 1 2
9. Front brake (brake band)AT- 2 9 4
10. Input clutchAT- 3 1 7
11. Gear systemAT- 2 7 4
12. High and low reverse clutchAT- 3 2 9
42 Slips at lock-up. ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. Engine speed signalAT- 1 2 3
4. Turbine revolution sensor AT- 11 6
5. Torque converter clutch solenoid valveAT- 1 2 5
6. CAN communication lineAT- 1 0 4
7. Control valve with TCMAT- 2 3 9
OFF vehicle 8. Torque converter
AT- 2 9 49. Oil pump assemblyAT- 3 1 2
No. Items Symptom Condition Diagnostic Item Reference
page

TROUBLE DIAGNOSIS AT-81
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
43
Slips/Will
Not
Engage No creep at all.
Refer to AT-196,
"Vehicle Does Not
Creep Backward in
“R” Position" , AT-199,
"Vehicle Does Not
Creep Forward in “D”
Position"
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. ATF pressure switch 5 and direct clutch solenoid valve AT-175,
AT-154
5. PNP switch AT- 11 2
6. CAN communication lineAT-104
7. A/T positionAT-231
8. Control valve with TCMAT-239
OFF vehicle 9. Torque converter
AT-294
10. Oil pump assemblyAT-312
11. 1st one-way clutchAT-323
12. Gear systemAT-274
13. Reverse brakeAT-294
14. Direct clutchAT-332
15. 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
16. 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
44
Vehicle cannot run in
all positions. ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. PNP switchAT- 11 2
4. A/T positionAT-231
5. Control valve with TCMAT-239
OFF vehicle 6. Oil pump assembly
AT-3127. Gear systemAT-274
8. Output shaftAT-294
No. Items Symptom Condition Diagnostic Item Reference
page

AT-82
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
45
Slips/Will
Not
Engage With selector lever in
“D” position, driving is
not possible. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. PNP switchAT- 11 2
4. A/T positionAT- 2 3 1
5. Control valve with TCMAT- 2 3 9
OFF vehicle 6. Torque converter
AT- 2 9 4
7. Oil pump assemblyAT- 3 1 2
8. 1st one-way clutchAT- 3 2 3
9. Gear systemAT- 2 7 4
10. Reverse brakeAT- 2 9 4
11. Forward one-way clutch (Parts behind drum support is
impossible to perform inspection by disassembly. Refer to
AT-18, "
Cross-sectional View (2WD Models)" , AT- 1 9 ,
"Cross-sectional View (VQ35DE Models for AWD)" or AT-
20, "Cross-sectional View (VK45DE Models for AWD)" ) AT- 2 9 4
12. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT-19, "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT- 2 0 , "Cross-
sectional View (VK45DE Models for AWD)" ) AT- 2 9 4
46
With selector lever in
“R” position, driving is
not possible. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. PNP switchAT- 11 2
4. A/T positionAT- 2 3 1
5. Control valve with TCMAT- 2 3 9
OFF vehicle 6. Gear system
AT- 2 7 47. Output shaftAT- 2 9 4
8. Reverse brakeAT- 2 9 4
47 Does Not
Change Does not change M5
→ M4.
Refer to AT-219, "A/T
Does Not Shift: 5th
Gear → 4th Gear" . ON vehicle 1. PNP switch
AT- 11 2
2. A/T fluid level and state AT- 5 3
3. A/T positionAT- 2 3 1
4. Manual mode switchAT- 1 6 6
5. ATF pressure switch 1AT- 1 7 1
6. CAN communication lineAT- 1 0 4
7. Control valve with TCMAT- 2 3 9
OFF vehicle 8. Front brake (brake band) AT- 2 9 4
No. Items Symptom Condition Diagnostic Item Reference
page

AT-84
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
53
Others Shift point is low in “D”
position. ON vehicle 1. Vehicle speed sensor A/T and vehicle speed sensor MTR
AT- 11 8
,
AT- 1 3 9
2. Accelerator pedal position sensor AT- 1 3 1
3. CAN communication lineAT- 1 0 4
4. Control valve with TCMAT- 2 3 9
54 Judder occurs during
lock-up. ON vehicle 1. A/T fluid level and state
AT- 5 3
2. Engine speed signalAT- 1 2 3
3. Turbine revolution sensor AT- 11 6
4. Vehicle speed sensor A/T and vehicle speed sensor MTR AT- 11 8,
AT- 1 3 9
5. Accelerator pedal position sensor AT- 1 3 1
6. CAN communication lineAT- 1 0 4
7. Torque converter clutch solenoid valveAT- 1 2 5
8. Control valve with TCMAT- 2 3 9
OFF vehicle 9. Torque converter AT- 2 9 4
55 Strange noise in “R”
position. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Engine speed signalAT- 1 2 3
3. CAN communication lineAT- 1 0 4
4. Control valve with TCMAT- 2 3 9
OFF vehicle 5. Torque converter
AT- 2 9 4
6. Oil pump assemblyAT- 3 1 2
7. Gear systemAT- 2 7 4
8. High and low reverse clutchAT- 3 2 9
9. Reverse brakeAT- 2 9 4
56 Strange noise in “N”
position. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Engine speed signalAT- 1 2 3
3. CAN communication lineAT- 1 0 4
4. Control valve with TCMAT- 2 3 9
OFF vehicle 5. Torque converter
AT- 2 9 46. Oil pump assemblyAT- 3 1 2
7. Gear systemAT- 2 7 4
No. Items Symptom Condition Diagnostic Item Reference
page

TROUBLE DIAGNOSIS AT-85
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
57
Others Strange noise in “D”
position. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Engine speed signalAT-123
3. CAN communication lineAT-104
4. Control valve with TCMAT-239
OFF vehicle 5. Torque converter
AT-294
6. Oil pump assemblyAT-312
7. Gear systemAT-274
8. 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
58 Vehicle does not
decelerate by engine
brake.
Refer to AT-227,
"Vehicle Does Not
Decelerate by Engine
Brake" . ON vehicle
1. PNP switch
AT- 11 2
2. A/T fluid level and state AT- 5 3
3. A/T positionAT-231
4. Manual mode switchAT-166
5. ATF pressure switch 5AT-175
6. CAN communication lineAT-104
7. Control valve with TCMAT-239
OFF vehicle 8. Input clutch
AT-3179. High and low reverse clutchAT-329
10. Direct clutchAT-332
59 Engine brake does
not work M5 → M4. ON vehicle 1. PNP switch
AT- 11 2
2. A/T fluid level and state AT- 5 3
3. A/T positionAT-231
4. Manual mode switchAT-166
5. ATF pressure switch 1AT-171
6. CAN communication lineAT-104
7. Control valve with TCMAT-239
OFF vehicle 8. Front brake (brake band) AT-294
60 Engine brake does
not work M4 → M3. ON vehicle 1. PNP switch
AT- 11 2
2. A/T fluid level and state AT- 5 3
3. A/T positionAT-231
4. Manual mode switchAT-166
5. ATF pressure switch 1 and ATF pressure switch 3 AT-171,
AT-173
6. CAN communication line AT-104
7. Control valve with TCMAT-239
OFF vehicle 8. Front brake (brake band)
AT-2949. Input clutchAT-317
No. Items Symptom Condition Diagnostic Item Reference
page

AT-86
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
61
Others Engine brake does
not work M3 → M2. ON vehicle 1. PNP switch
AT- 11 2
2. A/T fluid level and state AT- 5 3
3. A/T positionAT- 2 3 1
4. Manual mode switchAT- 1 6 6
5. ATF pressure switch 6AT- 1 7 7
6. CAN communication lineAT- 1 0 4
7. Control valve with TCMAT- 2 3 9
OFF vehicle 8. Front brake (brake band)
AT- 2 9 49. Input clutchAT- 3 1 7
10. High and low reverse clutchAT- 3 2 9
62 Engine brake does
not work M2 → M1. ON vehicle 1. PNP switch
AT- 11 2
2. A/T fluid level and state AT- 5 3
3. A/T positionAT- 2 3 1
4. Manual mode switchAT- 1 6 6
5. ATF pressure switch 5AT- 1 7 5
6. CAN communication lineAT- 1 0 4
7. Control valve with TCMAT- 2 3 9
OFF vehicle 8. Input clutch
AT- 3 1 79. High and low reverse clutchAT- 3 2 9
10. Direct clutchAT- 3 3 2
63 Maximum speed low. ON vehicle
1. A/T fluid level and state
AT- 5 3
2. Line pressure testAT- 5 4
3. Accelerator pedal position sensorAT- 1 3 1
4. CAN communication lineAT- 1 0 4
5. Direct clutch solenoid valveAT- 1 5 4
6. Control valve with TCMAT- 2 3 9
OFF vehicle 7. Torque converter
AT- 2 9 4
8. Oil pump assemblyAT- 3 1 2
9. Input clutchAT- 3 1 7
10. Gear systemAT- 2 7 4
11. High and low reverse clutchAT- 3 2 9
12. Direct clutchAT- 3 3 2
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)" , AT- 1 9 ,
"Cross-sectional View (VQ35DE Models for AWD)" or AT-
20, "Cross-sectional View (VK45DE Models for AWD)" ) AT- 2 9 4
14. Forward brake (Parts behind drum support is impossible
to perform inspection by disassembly. Refer to AT-18,
"Cross-sectional View (2WD Models)" , AT-19, "Cross-sec-
tional View (VQ35DE Models for AWD)" or AT- 2 0 , "Cross-
sectional View (VK45DE Models for AWD)" ) AT- 2 9 4
No. Items Symptom Condition Diagnostic Item
Reference
page

DTC P0745 LINE PRESSURE SOLENOID VALVE AT-129
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
DTC P0745 LINE PRESSURE SOLENOID VALVEPFP:31940
DescriptionNCS001D7
The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in
response to a signal sent from the TCM.
CONSULT-II Reference ValueNCS001D8
On Board Diagnosis LogicNCS001D9

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0745 L/PRESS SOL/CIRC” with CONSULT-II or 4th judgement flicker without
CONSULT-II is detected under the following conditions.
–When TCM detects an improper voltage drop when it tries to operate the solenoid valve.
–When TCM detects as irregular by comparing target value with monitor value.
Possible CauseNCS001DA

Harness or connectors
(Solenoid circuit is open or shorted.)

Line pressure solenoid valve
DTC Confirmation ProcedureNCS001DB
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Touch “START”.
4. Engine start and wait at least 5 seconds.
5. If DTC is detected, go to “ AT- 1 3 0 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
LINE PRES SOL During driving 0.2 - 0.6 A
BCIA0031E

TROUBLE DIAGNOSIS FOR SYMPTOMS AT-191
D E
F
G H
I
J
K L
M A
B
AT
Revision: 2006 July 2007 FX35/FX45
In “P” Position, Vehicle Moves When PushedNCS001HL
SYMPTOM:
Even though the selector lever is set in the “P” position, the parking mechanism is not actuated,
allowing the vehicle to be moved when it is pushed.
DIAGNOSTIC PROCEDURE
1. CHECK A/T POSITION
Check the A/T position. Refer to AT- 2 3 1 , "
Checking of A/T Position" .
OK or NG
OK >> GO TO 2.
NG >> Adjust A/T position. Refer to AT- 2 3 1 , "
Adjustment of A/T
Position" .
2. CHECK PARKING COMPONENTS
Check parking components. Refer to AT- 2 5 0 , "
Parking Components (2WD Models Only)" (2WD models) or
AT- 2 9 4 , "
Disassembly" (AWD models).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 3 9 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
A/T Fluid Condition
Check" .
OK or NG
OK >> INSPECTION END
NG >> Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 6 4 , "
Symp-
tom Chart" (Symptom No.65).
SCIA2119E
SCIA5199E