sensor INFINITI QX4 2005 Factory Service Manual

AT-232
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal
2. Drain ATF through drain plug.
3. Disconnect A/T assembly harness connector.
4. Remove snap ring from A/T assembly harness connector.
5. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
6. Remove oil pan and oil pan gasket, refer to AT-229, "
Removal" .
7. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
8. Straighten terminal clip to free terminal cord assembly A/T fluid
temperature sensor 2 harness.
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ON-VEHICLE SERVICE
AT-233
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Revision: October 20052005 QX56
9. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
10. Straighten terminal clips to free revolution sensor harness.
11. Remove bolts A, B and C from control valve with TCM.
12. 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.
13. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
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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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AT-234
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
14. Remove bracket from A/T fluid temperature sensor 2.
15. Remove O-ring from A/T assembly harness connector.
16. Disconnect TCM connectors.
CAUTION:
Be careful not to damage connectors.
17. Remove A/T assembly harness connector from control valve
with TCM using flat blade screwdriver.
18. Disconnect TCM connector and park/neutral position switch
connector
CAUTION:
Be careful not to damage connectors.
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AT-236
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
5. Install A/T fluid temperature sensor 2 to bracket.
6. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque. Refer to AT-250, "
Components" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
7. 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.

Assemble it so that manual valve cutout is engaged with
manual plate projection.
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ON-VEHICLE SERVICE
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Revision: October 20052005 QX56
8. Install bolts A, B and C in control valve with TCM.
9. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. After
that tighten them in order (1 → 2 → 3), and then tighten other
bolts.
10. Tighten control valve with TCM bolts to the specified torque.
Refer to AT- 2 5 0 , "
Components" .
11. Connect A/T fluid temperature sensor 2 connector.
12. Securely fasten terminal cord assembly and A/T fluid tempera-
ture sensor 2 harness with terminal clips.
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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AT-238
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
13. Connect revolution sensor connector.
14. Securely fasten revolution sensor harness with terminal clips.
15. Install oil pan to transmission case, refer to AT-229, "
Installation" .
16. Pull up A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
17. Install snap ring to A/T assembly harness connector.
18. Connect A/T assembly harness connector.
19. Pour ATF into transmission assembly. Refer to MA-24, "
Chang-
ing A/T Fluid" .
20. Connect the negative battery terminal
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ON-VEHICLE SERVICE
AT-239
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Revision: October 20052005 QX56
A/T FLUID TEMPERATURE SENSOR 2 REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal
2. Remove oil pan and oil pan gasket, refer to AT - 2 2 9 , "
Removal" .
3. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
4. Straighten terminal clip to free A/T fluid temperature sensor 2
harness.
5. Remove A/T fluid temperature sensor 2 with bracket from con-
trol valve with TCM.
6. Remove bracket from A/T fluid temperature sensor 2.
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AT-240
ON-VEHICLE SERVICE
Revision: October 20052005 QX56
Installation
CAUTION:
After completing installation, check for A/T fluid leakage and fluid level. Refer to MA-24, "
Changing A/
T Fluid" , MA-22, "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- 2 5 0 , "
Components" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
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, refer to AT-229, "
Installation" .
6. Connect the negative battery terminal
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AT-244
TRANSMISSION ASSEMBLY
Revision: October 20052005 QX56
TRANSMISSION ASSEMBLYPFP:31020
Removal and Installation (4x2)ECS00CL0
COMPONENTS
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.
3. Remove A/T fluid indicator gauge.
4. Remove engine under cover with power tool.
5. Remove exhaust front tube and center muffler with power tool. Refer to EX-4, "
REMOVAL" .
6. Remove rear propeller shaft. Refer to PR-9, "
REMOVAL" .
7. Remove A/T control cable. Refer to AT-228, "
REMOVAL" .
1. A/T fluid indicator pipe 2. A/T fluid indicator 3. O-ring
4. Transmission assembly 5. Fluid cooler tube 6. A/T cross member
7. Insulator 8. Copper washers
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TRANSMISSION ASSEMBLY
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8. Remove crankshaft position sensor (POS) from A/T assembly.
9. Remove fluid cooler tube.
10. Remove dust cover from converter housing part.
11. Secure drive plate using Tool then remove drive plate to torque
converter bolts.
CAUTION:
When turning crankshaft, turn it clockwise as viewed from
the front of the engine.
NOTE:
Tool must be removed and drive plate turned to access all drive
plate to torque converter bolts.
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 with power tool.
14. Remove air breather hose. Refer to AT-242, "
Removal and Installation" .
15. Disconnect A/T assembly connector.
16. Remove A/T fluid indicator pipe from A/T assembly.
17. Plug up openings such as the A/T fluid indicator pipe hole, etc.
18. Remove the A/T assembly to engine bolts with power tool.
19. Remove A/T assembly from vehicle using Tool and a transmis-
sion 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 the reference value
limit.
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Tool number : — (J-47245)
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Dimension A : 24.0 mm (0.94 in) or more
SAT0 1 7B