service INFINITI QX56 2004 Factory Owner's Manual

ON-VEHICLE SERVICE
AT-243
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Revision: August 20072004 QX56
8. Remove magnets from oil pan.
9. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
10. Straighten terminal clip to free A/T fluid temperature sensor 2
harness.
11. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
12. Straighten terminal clips to free revolution sensor harness.
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AT-244
ON-VEHICLE SERVICE
Revision: August 20072004 QX56
13. Remove bolts A, B and C from control valve with TCM.
14. Remove control valve with TCM from transmission case.
CAUTION:
When removing, be careful with the manual valve notch and
manual plate height. Remove it vertically.
15. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
16. Remove bracket from A/T fluid temperature sensor 2.
17. Remove O-ring from A/T assembly harness connector.
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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ON-VEHICLE SERVICE
AT-245
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Revision: August 20072004 QX56
Installation
CAUTION:
After completing installation, check fluid leakage and fluid level. Refer to AT-13, "
Changing A/T Fluid"
, AT-13, "Checking A/T Fluid" .
1. Install O-ring in A/T assembly harness connector.
CAUTION:

Do not reuse O-ring.

Apply ATF to O-ring.
2. Install A/T fluid temperature sensor 2 to bracket.
3. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 mount-
ing bolt to the specified torque. Refer to AT-241, "
COMPO-
NENTS" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
4. Install control valve with TCM in transmission case.
CAUTION:

Make sure that turbine revolution sensor securely installs
turbine revolution sensor hole.

Hang down revolution sensor harness toward outside so
as not to disturb installation of control valve with TCM.

Adjust A/T assembly harness connector of control valve
with TCM to terminal hole of transmission case.
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AT-246
ON-VEHICLE SERVICE
Revision: August 20072004 QX56

Assemble it so that manual valve cutout is engaged with
manual plate projection.
5. Install bolts A, B and C in control valve with TCM.
6. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. After
that tighten them in order (1 → 2 → 3), and then tighten other
bolts.
7. Tighten control valve with TCM mounting bolts to the specified
torque. Refer to AT-241, "
COMPONENTS" .
8. Connect A/T fluid temperature sensor 2 connector.
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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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ON-VEHICLE SERVICE
AT-247
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Revision: August 20072004 QX56
9. Securely fasten A/T fluid temperature sensor 2 harness with ter-
minal clip.
10. Connect revolution sensor connector.
11. Securely fasten revolution sensor harness with terminal clips.
12. Install magnets in oil pan.
13. Install oil pan to transmission case.
a. Install oil pan gasket to oil pan.
CAUTION:

Do not reuse oil pan gasket.

Install it in the direction to align hole positions.

Complete remove all moisture, oil and old gasket, etc. From oil pan gasket mounting surfaces.
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AT-248
ON-VEHICLE SERVICE
Revision: August 20072004 QX56
b. Install oil pan (with oil pan gasket) to transmission case.
CAUTION:

Install it so that drain plug comes to the position as
shown in the figure.

Be careful not to pinch harnesses.

Complete remove all moisture, oil and old gasket, etc.
From oil pan mounting surfaces.
c. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order shown in the figure after temporarily tightening them.
Refer to AT-241, "
COMPONENTS" .
CAUTION:
Do not reuse oil pan mounting bolts.
14. Install drain plug to oil pan. Tighten drain plug to the specified
torque. Refer to AT-241, "
COMPONENTS" .
CAUTION:
Do not reuse drain plug gasket.
15. Pull up A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
16. Install snap ring to A/T assembly harness connector.
17. Connect A/T assembly harness connector.
18. Pour ATF into transmission assembly. Refer to AT - 1 3 , "
Chang-
ing A/T Fluid" .
19. Connect the negative battery terminal
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ON-VEHICLE SERVICE
AT-249
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Revision: August 20072004 QX56
A/T FLUID TEMPERATURE SENSOR 2 REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal
2. Drain ATF through drain plug.
3. Remove oil pan and oil pan gasket.
4. Check foreign materials in oil pan to help determine causes of
malfunction. If the A/T fluid is very dark, smells burned, or con-
tains foreign particles, 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-15, "
A/T Fluid Cooler Cleaning" .
5. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
6. Straighten terminal clip to free A/T fluid temperature sensor 2
harness.
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AT-250
ON-VEHICLE SERVICE
Revision: August 20072004 QX56
7. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
8. Remove bracket from A/T fluid temperature sensor 2.
Installation
CAUTION:
After completing installation, check fluid leakage and fluid level. Refer to AT-1 3, "
Changing A/T Fluid"
, AT-1 3, "Checking A/T Fluid" .
1. Install A/T fluid temperature sensor 2 to bracket.
2. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 mount-
ing bolt to the specified torque. Refer to AT-241, "
COMPO-
NENTS" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
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ON-VEHICLE SERVICE
AT-251
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Revision: August 20072004 QX56
3. Connect A/T fluid temperature sensor 2 connector.
4. Securely fasten A/T temperature sensor 2 harness with terminal
clip.
5. Install oil pan to transmission case.
a. Install oil pan gasket to oil pan.
CAUTION:

Do not reuse oil pan gasket.

Install it in the direction to align hole positions.

Complete remove all moisture, oil and old sealant, etc. From oil pan gasket mounting surfaces.
b. Install oil pan (with oil pan gasket) to transmission case.
CAUTION:

Install it so that drain plug comes to the position as
shown in the figure.

Be careful not to pinch harnesses.

Complete remove all moisture, oil and old sealant, etc.
From oil pan mounting surfaces.
c. Tighten oil pan mounting bolts to the specified torque in numeri-
cal order shown in the figure after temporarily tightening them.
Refer to AT- 2 4 1 , "
COMPONENTS" .
CAUTION:
Do not reuse oil pan mounting bolts.
6. Install drain plug to oil pan. Tighten drain plug to the specified
torque. Refer to AT-241, "
COMPONENTS" .
CAUTION:
Do not reuse drain plug gasket.
7. Pour ATF into transmission assembly. Refer to AT-13, "
Chang-
ing A/T Fluid" .
8. Connect the negative battery terminal
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AT-252
ON-VEHICLE SERVICE
Revision: August 20072004 QX56
Rear Oil SealUCS002JC
REMOVAL AND INSTALLATION
Removal
1. Remove rear propeller shaft.Refer to PR-9, "REMOVAL" .
2. Remove transfer from transmission (4WD models). Refer to TF-
109, "REMOVAL AND INSTALLATION" .
3. Remove rear oil seal using a flat-bladed screwdriver.
CAUTION:
Be careful not to scratch rear extension assembly (2WD
models) or adapter case assembly (4WD models).
Installation
CAUTION:
After completing installation, check fluid leakage and fluid level. Refer to AT-1 3, "
Changing A/T Fluid"
,AT- 1 3 , "Checking A/T Fluid" .
1. As shown below, use a drift to drive rear oil seal into the exten-
sion case (2WD models) or adapter case (4WD models) until it
is flush.
CAUTION:

Apply ATF to rear oil seal.

Do not reuse rear oil seal
2. Install transfer to transmission (4WD models). Refer to TF-109,
"REMOVAL AND INSTALLATION" .
3. Install rear propeller shaft. Refer to PR-9, "
INSTALLATION" .
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