2007 INFINITI QX56 sensor

AT-226
< SERVICE INFORMATION >
TRANSMISSION ASSEMBLY
REMOVAL
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the negative battery terminal.
2. Remove engine cover using power tool.
3. Remove A/T fluid indicator.
4. Remove undercovers using power tool.
5. Remove exhaust front tube and center muffler using power tool. Refer to EX-3, "
Removal and Installa-
tion".
6. Remove propeller shafts. Refer to PR-4, "
Removal and Installation" and PR-8, "Removal and Installation".
7. Remove A/T control cable. Refer to AT-207, "
Control Device Removal and Installation".
8. Remove crankshaft position sensor (POS) from A/T assembly.
CAUTION:
• Do not subject it to impact by dropping or hitting it.
• Do not disassemble.
• Do not allow metal filings or foreign material to get on the
sensor's front edge magnetic area.
• Do not place in an area affected by magnetism.
9. Disconnect A/T fluid cooler tube from A/T assembly.
10. Remove dust cover from converter housing.
11. Turn crankshaft, and remove the four bolts for drive plate and
torque converter.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
12. Support A/T assembly using transmission jack and Tool.
CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
NOTE:
The actual special service tool may differ from tool shown.
13. Remove cross member using power tool.
14. Tilt the transmission slightly to keep the clearance between body
and transmission, then disconnect air breather hose from A/T
fluid indicator pipe. Refer to AT-221, "
Removal and Installation".
15. Disconnect A/T assembly connector and transfer unit connector.
16. Remove A/T fluid indicator pipe.
1. A/T fluid indicator pipe 2. A/T fluid indicator 3. O-ring
4. Transmission assembly 5. Fluid cooler tube 6. Copper washer
7. A/T cross member 8. Insulator
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Tool number : — (J-47002)
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TRANSMISSION ASSEMBLY
AT-227
< SERVICE INFORMATION >
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17. Plug any openings such as the fluid charging pipe hole.
18. Remove A/T assembly to engine bolts using power tool.
19. Remove A/T assembly with transfer from vehicle.
CAUTION:
• Secure torque converter to prevent it from dropping.
• Secure A/T assembly to transmission jack.
20. Remove transfer from A/T assembly. Refer to TF-128, "
Removal and Installation".
INSPECTION
Installation and Inspection of Torque Converter
• After inserting a torque converter to a transmission, be sure to
check dimension A to ensure it is within specifications.
INSTALLATION
Installation of the remaining components is in the reverse order of removal, while paying attention to the fol-
lowing:
• When installing transmission to the engine, attach the bolts as shown.
NOTE:
*: No.2 bolt also secures air breather vent.
CAUTION:
• When replacing an engine or transmission you must make
sure the dowels are installed correctly during re-assembly.
• Improper alignment caused by missing dowels may cause
vibration, oil leaks or breakage of drivetrain components.
• Align the positions of bolts for drive plate with those of the torque
converter, and temporarily tighten the bolts. Then tighten the bolts
with the specified torque.
CAUTION:
• When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
• After converter is installed to drive plate, rotate crankshaft
several turns and check to be sure that transmission rotates
freely without binding.
• Install crankshaft position sensor (POS).
• After completing installation, check fluid leakage, fluid level, and
the positions of A/T. Refer to AT-13, "
Checking Automatic Trans-
mission Fluid (ATF)", AT-208, "Checking of A/T Position" and AT-208, "Adjustment of A/T Position". Dimension A : 24.0 mm (0.94 in) or more
SAT017B
Transmission to engine bolts : 113 N·m (12 kg-m,
83 ft-lb)
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AT-232
< SERVICE INFORMATION >
OVERHAUL
13. Revolution sensor 14. Parking gear 15. Output shaft
16. Bearing race 17. Needle bearing 18. Manual plate
19. Parking rod 20. Manual shaft oil seal 21. Manual shaft
22. O-ring 23. Band servo anchor end pin 24. Detent spring
25. Spacer 26. Seal ring 27. Snap ring
28. Return spring 29. O-ring 30. Servo assembly
31. Snap ring 32. Sub-harness 33. Control valve with TCM
34. Bracket 35. A/T fluid temperature sensor 2 36. Terminal cord assembly
37. O-ring 38. Retaining pin 39. Transmission case
*: Apply Genuine Anaerobic Liquid Gasket or equivalent.
Refer to GI-45, "
Recommended Chemical Product and Sealant".

OVERHAUL
AT-233
< SERVICE INFORMATION >
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4WD models
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1. Rear oil seal 2. Bracket 3. Adapter case
4. Parking actuator support 5. Parking pawl 6. Return spring
7. Pawl shaft 8. Self-sealing bolt 9. Seal ring
10. Needle bearing 11. Gasket 12. Revolution sensor
13. Parking gear 14. Output shaft 15. Bearing race
16. Needle bearing 17. Manual plate 18. Parking rod

AT-234
< SERVICE INFORMATION >
OVERHAUL
19. Manual shaft oil seal 20. Manual shaft 21. O-ring
22. Band servo anchor end pin 23. Detent spring 24. Spacer
25. Seal ring 26. Snap ring 27. Return spring
28. O-ring 29. Servo assembly 30. Snap ring
31. Sub-harness 32. Control valve with TCM 33. Bracket
34. A/T fluid temperature sensor 2 35. Terminal cord assembly 36. O-ring
37. Retaining pin 38. Transmission case

AT-246
< SERVICE INFORMATION >
DISASSEMBLY
27. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
28. Remove oil pan and oil pan gasket. Refer to AT-209, "
Oil Pan".
29. Disconnect A/T fluid temperature sensor 2 connector (A).
CAUTION:
Be careful not to damage connector.
30. Straighten the four terminal clips to free terminal cord assembly
and A/T fluid temperature sensor 2 harness.
• : Terminal clip
31. Straighten terminal clip to free revolution sensor harness.
32. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
33. Remove bolts (A), (B) and (C) from control valve with TCM.
• : Front
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Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
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DISASSEMBLY
AT-247
< SERVICE INFORMATION >
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34. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with transmission assembly ter-
minal connector and the manual valve notch and manual
plate height. Remove it vertically.
35. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
36. Remove bracket from A/T fluid temperature sensor 2.
37. Remove O-ring from A/T assembly harness connector.
38. Disconnect TCM connectors.
CAUTION:
Be careful not to damage connectors.
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DISASSEMBLY
AT-251
< SERVICE INFORMATION >
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46. Remove needle bearing from transmission case.
47. Remove revolution sensor from transmission case.
CAUTION:
• Do not subject it to impact by dropping or hitting it.
• Be careful not to damage harness with the edge of case.
• Do not allow metal filings or foreign material to get on the
sensor front edge magnetic area.
• Do not place in an area affected by magnetism.
48. Remove reverse brake snap ring using 2 flat-bladed screwdriv-
ers.
NOTE:
Press out snap ring from the transmission case oil pan side gap
using a flat-bladed screwdriver, and remove it using another
screwdriver.
49. Remove reverse brake retaining plate from transmission case.
50. Remove N-spring from transmission case.
51. Remove reverse brake drive plates, driven plates and dish plate
from transmission case.
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