2006 INFINITI QX56 drain bolt

AT-12
A/T FLUID
Revision: November 20092006 QX56
A/T FLUIDPFP:KLE40
Changing Automatic Transmission Fluid (ATF)ECS00EPX
1. Drive the vehicle to warm up the ATF to 80° C (176 ° F).
2. Stop the engine.
3. Remove the ATF level gauge bolt.
4. Drain the ATF from the drain plug hole and then install the drain plug with a new gasket. Refill the transmission with new ATF.
Always refill with the same volume as the drained ATF. Use the
ATF level gauge to check the ATF level as shown. Add ATF as
necessary.

To flush out the old ATF from the coolers, pour new ATF into the charging pipe with the engine idling
and at the same time drain the old ATF from the auxiliary transmission oil cooler hose return line.

When the color of the ATF coming out of the auxiliary transmission oil cooler hose return line is about
the same as the color of the new ATF, flushing out the old ATF is complete. The amount of new trans-
mission ATF used for flushing should be 30% to 50% of the specified capacity.
CAUTION:

Use only the specified ATF. Do not mix with other fluids.

Using an ATF other than the specified ATF will cause deterioration in driveability and automatic
transmission durability, and may damage the automatic transmission, which is not covered by
the warranty.

When filling the transmission with ATF, do not spill the ATF on any heat generating parts such
as the exhaust manifold.

Do not reuse the drain plug gasket.
5. Install the ATF level gauge in the ATF charging pipe and tighten the level gauge bolt to specification.
6. Drive the vehicle to warm up the ATF to 80 ° C (176 ° F).
7. Check the ATF level and condition. Refer to AT- 1 2 , "
Checking Automatic Transmission Fluid (ATF)" . If the
ATF is still dirty, repeat steps 2 through 5.
Checking Automatic Transmission Fluid (ATF)ECS00EPY
1. Remove the ATF level gauge bolt.
2. Before driving, the ATF level can be checked at ATF tempera- tures of 30 ° to 50 °C (86 ° to 122 °F) using the “COLD” range on
the ATF level gauge as follows:
a. Park the vehicle on a level surface and set the parking brake.
b. Start the engine and move the selector lever through each gear position. Shift the selector lever into the “P” position.
c. Check the ATF level with the engine idling.
d. Remove the ATF level gauge and wipe it clean with a lint-free paper.
CAUTION:
When wiping the ATF from the ATF level gauge, always use
a lint-free paper, not a cloth.Drain plug : Refer to
AT- 2 5 0 , "
Components" .
WLIA0014E
ATF type and capacity : Refer to MA-11, "Fluids and Lubricants" .
Drain plug : Refer to AT- 2 5 0 , "
Components" .
Level gauge bolt : Refer to AT- 2 5 0 , "
Components" .
WLIA0014E

AT-14
A/T FLUID
Revision: November 20092006 QX56

To check the ATF level, insert the ATF level gauge until
the cap contacts the top of the charging pipe, with the
gauge reversed from the normal inserted position as
shown.
8. Check the ATF condition.

If the ATF is very dark or has some burned smell, there may be an internal problem with the transmis-
sion. Refer to AT- 1 7 6 , "
TROUBLE DIAGNOSIS FOR SYMPTOMS" . Flush the transmission cooling
system after repairing the transmission.

If the ATF contains frictional material (clutches, bands, etc.), replace the radiator and flush the transmis-
sion cooler lines using cleaning solvent and compressed air after repairing the transmission.
9. Install the ATF level gauge in the ATF charging pipe and install the level gauge bolt.
10. Tighten the level gauge bolt to specification.
A/T Fluid Cooler CleaningECS00CDS
Whenever an automatic transmission is repaired, overhauled, or replaced, the A/T fluid cooler mounted in the
radiator must be inspected and cleaned.
Metal debris and friction material, if present, can become trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can block or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Position an oil pan under the automatic transmission's inlet and outlet cooler hoses.
2. Identify the inlet and outlet fluid cooler hoses.
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the steel cooler tubes or bypass valve.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any A/T fluid that remains in the cooler hoses to drain into the oil pan.
5. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:

Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.

Spray cooler cleaner only with adequate ventilation.

Avoid contact with eyes and skin.

Do not breath vapors or spray mist.
SCIA1684E
Level gauge bolt: : Refer to AT- 2 5 0 , "Components" .
SCIA3830E
SCIA3831E

ON-VEHICLE SERVICEAT-229
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Revision: November 2009 2006 QX56
2. Install the oil pan and new oil pan gasket.
CAUTION:

Do not reuse the oil pan gasket.

Completely remove all moisture, oil and old gasket from
the oil pan gasket mating surfaces and holes.

Always replace the oil pan bolts as they are self-sealing.

Be sure the oil pan drain plug hole is located to the rear
of the transmission assembly.

Partially install the oil pan bolts in a criss-cross pattern to
prevent dislocation of the gasket.

Be careful not to pinch harnesses.
3. Tighten new oil pan bolts in numerical order as shown.
4. Install drain plug in oil pan with new gasket. CAUTION:
Do not reuse the drain plug gasket.
5. Refill the transmission assembly with fluid. Refer to AT- 1 2 , "
Changing Automatic Transmission Fluid
(ATF)" .
SCIA2308E
Oil pan bolts : 7.9 N·m (0.81 kg-m, 70 in-lb)
SCIA4113E
Drain plug : 34 N·m (3.5 kg-m, 25 ft-lb)

AT-230
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
Control Valve With TCM and A/T Fluid Temperature Sensor 2ECS00EQ0
COMPONENTS
1. Transmission assembly2. Snap ring 3. Sub-harness
4. Control valve with TCM 5. Bracket 6. A/T fluid temperature sensor 2
7. Oil pan gasket 8. Oil pan 9. Magnets
10. Drain plug 11. Drain plug gasket 12. Oil pan bolt
13. Terminal cord assembly 14. O-ring
SCIA5478E

AT-244
TRANSMISSION ASSEMBLY
Revision: November 20092006 QX56
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 front edge magnetic area.

Do not place in an area affected by magnetism.
9. Remove fluid cooler tube.
10. Remove dust cover from converter housing.
11. Turn crankshaft to access 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 with a transmission jack. CAUTION:
When setting the transmission jack, be careful not to allow
it to collide against the drain plug.
13. Remove cross member using power tool.
14. Remove air breather hose. Refer to AT- 2 4 1 , "
Removal and
Installation" .
15. Disconnect A/T assembly connector.
16. Remove A/T fluid indicator pipe from A/T assembly.
17. Plug any openings such as the A/T fluid indicator pipe hole.
18. Remove the A/T assembly to engine bolts using power tool.
19. Remove A/T assembly from vehicle using transmission jack. CAUTION:

Secure torque converter to prevent it from dropping.

Secure A/T assembly to a transmission jack.
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.
LCIA0334E
LCIA0335E
SCIA0499E
Dimension A : 24.0 mm (0.94 in) or more
SAT017B

TRANSMISSION ASSEMBLYAT-247
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Revision: November 2009 2006 QX56
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- 2 4 3 , "
REMOVAL" .
15. Disconnect A/T assembly connector and transfer unit connector.
16. Remove A/T fluid indicator pipe.
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-145, "
REMOVAL" .
LCIA0334E
LCIA0335E
Tool number : — (J-47002)
SCIA2203E

OVERHAULAT-255
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Revision: November 2009 2006 QX56
7. Return spring8. Pawl shaft9. Self-sealing bolt
10. Bracket 11. Seal ring12. Needle bearing
13. Revolution sensor 14. Parking gear15. Output shaft
16. Bearing race 17. Needle bearing18. Manual plate
19. Parking rod 20. Manual shaft oil seal21. Manual shaft
22. O-ring 23. Band servo anchor end pin 24. Detent spring
25. Spacer 26. Seal rings27. Return spring
28. O-ring 29. Servo assembly30. Snap ring
31. Snap ring 32. Sub-harness33. Control valve with TCM
34. Bracket 35. A/T fluid temperature sensor 2 36. Oil pan
37. Magnets 38. Drain plug39. Drain plug gasket
40. Oil pan bolt 41. Oil pan gasket42. Terminal cord assembly
43. O-ring 44. Retaining pin45. Transmission case

OVERHAULAT-257
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Revision: November 2009 2006 QX56
7. Pawl shaft8. Bracket9. Self-sealing bolt
10. Seal ring 11. Needle bearing12. Gasket
13. Revolution sensor 14. Parking gear15. Output shaft
16. Bearing race 17. Needle bearing18. Manual plate
19. Parking rod 20. Manual shaft oil seal21. Manual shaft
22. O-ring 23. Band servo anchor end pin 24. Detent spring
25. Spacer 26. Seal rings27. Return spring
28. O-ring 29. Servo assembly30. Snap ring
31. Snap ring 32. Sub-harness33. Control valve with TCM
34. Bracket 35. A/T fluid temperature sensor 2 36. Oil pan
37. Magnets 38. Drain plug39. Drain plug gasket
40. Oil pan bolt 41. Oil pan gasket42. Terminal cord assembly
43. O-ring 44. Retaining pin45. Transmission case