Infiniti Q45. Manual - part 78

ON-VEHICLE SERVICE

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ON-VEHICLE SERVICE

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Control Valve with TCM and A/T Fluid Temperature Sensor 2

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COMPONENTS

1.

A/T

2.

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.

Magnet

10. Drain plug

11.

Drain plug gasket

12. Oil pan mounting bolt

13. Terminal cord assembly

14. O-ring

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ON-VEHICLE SERVICE

CONTROL VALVE WITH TCM ASSEMBLY REMOVAL AND INSTALLATION 
Removal

1.

Disconnect the battery cable from the negative terminal.

2.

Drain ATF through drain plug.

3.

Disconnect heated oxygen sensor 2 harness connector.

4.

Disconnect A/T assembly harness connector.

5.

Remove snap ring from A/T assembly harness connector.

6.

Push A/T assembly harness connector.

CAUTION:

Be careful not to damage connector.

7.

Remove oil pan and oil pan gasket.

8.

Check foreign materials in oil pan to help determine causes of
malfunction. If the ATF 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-14, "A/T Fluid Cooler Cleaning"

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ON-VEHICLE SERVICE

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9.

Remove magnets from oil pan.

10. Disconnect A/T fluid temperature sensor 2 connector.

CAUTION:

Be careful not to damage connector.

11. Straighten terminal clips to free terminal cord assembly and A/T

fluid temperature sensor 2 harness.

12. Disconnect revolution sensor connector.

CAUTION:

Be careful not to damage connector.

13. Straighten terminal clip to free revolution sensor harness.

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ON-VEHICLE SERVICE

14. Remove bolts A, B and C from control valve with TCM.

15. 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.

16. Remove A/T fluid temperature sensor 2 with bracket from con-

trol valve with TCM.

17. Remove bracket from A/T fluid temperature sensor 2.

18. 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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