clutch INFINITI FX35 2004 Owners Manual

AT-220
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2004 November 2004 FX35/FX45
Lock-up Is Not ReleasedACS007GR
SYMPTOM:
The lock-up condition cannot be cancelled even after releasing the accelerator pedal.
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 4 , "
SELF-DIAGNOSTIC RESULT MODE" , AT- 1 0 3 , "TCM SELF-DIAG-
NOSTIC PROCEDURE (NO TOOLS)" .
Do the self-diagnostic results indicate torque converter clutch solenoid valve, engine speed signal, turbine rev-
olution sensor, CAN communication?
YES >> Check the malfunctioning system. Refer to AT- 1 2 3 , "DTC P0740 TORQUE CONVERTER
CLUTCH SOLENOID VALVE" , AT- 1 2 1 , "DTC P0725 ENGINE SPEED SIGNAL" , AT- 1 4 3 , "DTC
P1716 TURBINE REVOLUTION SENSOR" , AT- 1 0 5 , "DTC U1000 CAN COMMUNICATION
LINE" .
NO >> GO TO 2.
2. CHECK SYMPTOM
Check again. Refer to AT- 5 7 , "
Cruise Test - Part 1" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 3.
3. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 9 0 , "
TCM Input/Output Signal Reference Values" .
2. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness
connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-221
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Revision: 2004 November 2004 FX35/FX45
Engine Speed Does Not Return To IdleACS007GS
SYMPTOM:
When a shift-down is performed, the engine speed does not smoothly return to the idling speed.
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 2 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to AT- 9 4 , "
SELF-DIAGNOSTIC RESULT MODE" .
Do the self-diagnostic results indicate front brake solenoid valve, direct clutch solenoid valve, ATF pressure
switch 1, ATF pressure switch 5, accelerator pedal position sensor, vehicle speed sensor A/T (revolution sen-
sor) and vehicle speed sensor MTR?
YES >> Check the malfunctioning system. Refer to AT- 1 5 6 , "DTC P1757 FRONT BRAKE SOLENOID
VA LV E" , AT- 1 6 0 , "DTC P1762 DIRECT CLUTCH SOLENOID VALVE" , AT- 1 7 8 , "DTC P1841 ATF
PRESSURE SWITCH 1" , AT- 1 8 2 , "DTC P1845 ATF PRESSURE SWITCH 5" , EC-555, "DTC
P2122, P2123 APP SENSOR" (for VQ35DE) or EC-1225, "DTC P2122, P2123 APP SENSOR"
(for VK45DE), EC-562, "DTC P2127, P2128 APP SENSOR" (for VQ35DE) or EC-1232, "DTC
P2127, P2128 APP SENSOR" (for VK45DE), EC-576, "DTC P2138 APP SENSOR" (for
VQ35DE) or EC-1246, "
DTC P2138 APP SENSOR" (for VK45DE), AT- 1 3 6 , "DTC P1705
THROTTLE POSITION SENSOR" , AT- 11 6 , "DTC P0720 VEHICLE SPEED SENSOR A/T (REV-
OLUTION SENSOR)" , AT- 1 4 5 , "DTC P1721 VEHICLE SPEED SENSOR MTR" .
NO >> GO TO 3.
3. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 4 2 , "
Control Valve with TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 1 , "
Fluid Condition
Check" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 7.
4. DETECT MALFUNCTIONING ITEM

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 6 5 ,
"Symptom Chart" (Symptom No.72).
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
SAT638A
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ON-VEHICLE SERVICE
AT-243
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Revision: 2004 November 2004 FX35/FX45
6. Remove snap ring from A/T assembly harness connector.
7. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
8. Remove oil pan and oil pan gasket.
9. Check foreign materials in oil pan to help determine causes of
malfunction. If the fluid is very dark, smells burned, or contains
foreign particles, the frictional material (clutches, band) may
need replacement. A tacky film that will not wipe clean indicates
varnish build up. Varnish can cause valves, servo, and clutches
to stick and can inhibit pump pressure.

If frictional material is detected, perform A/T fluid cooler
cleaning. Refer to AT- 1 4 , "
A/T Fluid Cooler Cleaning" .
10. Remove magnets from oil pan.
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AT-250
ON-VEHICLE SERVICE
Revision: 2004 November 2004 FX35/FX45
6. Check foreign materials in oil pan to help determine causes of
malfunction. If the fluid is very dark, smells burned, or contains
foreign particles, the frictional material (clutches, band) may
need replacement. A tacky film that will not wipe clean indicates
varnish build up. Varnish can cause valves, servo, and clutches
to stick and can inhibit pump pressure.

If frictional material is detected, perform A/T fluid cooler
cleaning. Refer to AT- 1 4 , "
A/T Fluid Cooler Cleaning" .
7. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
8. Straighten terminal clip to free A/T fluid temperature sensor 2
harness.
9. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
10. Remove bracket from A/T fluid temperature sensor 2.
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OVERHAUL
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Revision: 2004 November 2004 FX35/FX45
1. O-ring 2. Oil pump cover 3. O-ring
4. Oil pump housing 5. Self-sealing bolt 6. Torque converter
7. Converter housing 8. Oil pump housing oil seal 9. Bearing race
10. Needle bearing 11. O-ring 12. Front carrier assembly
13. Snap ring 14. Front sun gear 15. 3rd one-way clutch
16. Snap ring 17. Bearing race 18. Needle bearing
19. Seal ring 20. Input clutch assembly 21. Needle bearing
22. Rear internal gear 23. Brake band 24. Mid carrier assembly
25. Needle bearing 26. Bearing race 27. Rear carrier assembly
28. Needle bearing 29. Mid sun gear 30. Seal ring
31. Rear sun gear 32. 1st one-way clutch 33. Snap ring
34. Needle bearing 35. High and low reverse clutch hub 36. Snap ring
37. Bearing race 38. Needle bearing

AT-276
OVERHAUL
Revision: 2004 November 2004 FX35/FX45
1. Needle bearing 2. Bearing race 3. High and low reverse clutch assem-
bly
4. Needle bearing 5. Direct clutch assembly 6. Reverse brake dish plate
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AT-286
DISASSEMBLY
Revision: 2004 November 2004 FX35/FX45
DISASSEMBLYPFP:31020
DisassemblyACS007H6
CAUTION:
Do not disassemble parts behind Drum Support. Refer to AT- 1 7 , "
Cross-Sectional View (2WD Models)"
or AT- 1 8 , "Cross-Sectional View (AWD Models)" .
1. Drain ATF through drain plug.
2. Remove torque converter by holding it firmly and turing while
pulling straight out.
3. Check torque converter one-way clutch using check tool as
shown at figure.
a. Insert check tool into the groove of bearing support built into
one-way clutch outer race.
b. When fixing bearing support with check tool, rotate one- way
clutch spline using screwdriver.
c. Check that inner race rotates clockwise only. If not, replace
torque converter assembly.
4. Remove converter housing from transmission case.
CAUTION:
Be careful not to scratch converter housing.
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DISASSEMBLY
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Revision: 2004 November 2004 FX35/FX45
5. Remove O-ring from input clutch assembly.
6. Remove tightening bolts for oil pump assembly and transmis-
sion case.
7. Attach the sliding hammers to oil pump assembly and extract it
evenly from transmission case.
CAUTION:

Fully tighten sliding hammer screw.

Make sure that bearing race is installed to the oil pump
assembly edge surface.
8. Remove O-ring from oil pump assembly.
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AT-288
DISASSEMBLY
Revision: 2004 November 2004 FX35/FX45
9. Remove bearing race from oil pump assembly.
10. Remove needle bearing from front sun gear.
11. Remove front sun gear assembly from front carrier assembly.
NOTE:
Remove front sun gear by rotating left/right.
12. Remove seal rings from input clutch assembly.
13. Remove front carrier assembly from rear carrier assembly. (With
input clutch assembly and rear internal gear.)
CAUTION:
Be careful to remove it with needle bearing.
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AT-290
DISASSEMBLY
Revision: 2004 November 2004 FX35/FX45
18. Remove needle bearing (front side) from mid carrier assembly.
19. Remove needle bearing (rear side) from mid carrier assembly.
20. Remove bearing race from rear carrier assembly.
21. Remove needle bearing from rear carrier assembly.
22. Remove mid sun gear assembly, rear sun gear assembly and
high and low reverse clutch hub as a unit.
CAUTION:
Be careful to remove then with bearing race and needle
bearing.
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