2008 INFINITI QX56 transmission

TM-196
< ON-VEHICLE REPAIR >
SHIFT CONTROL SYSTEM
Checking of A/T Position
INFOID:0000000004917432
1. Place shift selector in “P” position, and turn ignition switch ON (engine stop).
2. Make sure shift selector can be shifted to other than “P” position when brake pedal is depressed. Also make sure shift selector
can be shifted from “P” position only when brake pedal is
depressed.
3. Move the shift selector and check for excessive effort, sticking, noise or rattle.
4. Confirm the shift selector stop s at each position with the feel of
engagement when it is moved through all the positions. Check
whether or not the actual position the shift selector is in matches
the position shown by the shift position indicator and the trans-
mission body.
5. The method of operating the shift selector to individual positions correctly should be as shown.
6. Confirm the back-up lamps illuminate only when shift sele ctor is placed in the “R” position. Confirm the
back-up lamps does not illuminate when shift selector is pushed against “R” position in the “P” or “N” posi-
tion.
7. Confirm the engine can only be started with the shift selector in the “P” and “N” positions.
8. Make sure transmission is locked completely in “P” position.
Adjustment of A/T PositionINFOID:0000000004917431
1. Loosen nut of control cable.
2. Place transmisson range switch and shift selector in “P” position.
3. After pushing the control cable in the direction shown with a force of 9.8 N·m (1kg-m, 2.2 ft-lb), release it. This is in the natu-
ral state, tighten control cable nut to specifications.
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Control cable nut : 14.5 N·m (1.5 kg-m, 11 ft-lb)
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Revision: March 2010 2008 QX56

OIL PANTM-199
< ON-VEHICLE REPAIR >
CEF
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OIL PAN
Oil PanINFOID:0000000004917434
REMOVAL AND INSTALLATION
Removal
1. Drain A/T fluid. Refer to TM-180, "Changing the A/T Fluid (ATF)".
2. Remove oil pan clips (1).
3. Remove oil pan (2).
4. Remove oil pan gasket. • Vehicle front
• Oil pan bolts
• Drain plug (3)
5. Check for foreign materials in oil pan to help determi ne cause of malfunction. If the A/T fluid is very dark,
has some burned smell, or contains foreign particles then friction 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.
CAUTION:
If friction material is detected, flush th e transmission cooler after repair. Refer to TM-182, "
A/T
Fluid Cooler Cleaning".
6. Remove magnets from oil pan.
Installation
1. Install the oil pan magnets as shown.
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Revision: March 2010 2008 QX56

TM-200
< ON-VEHICLE REPAIR >
OIL PAN
2. Install the oil pan (2) new oil pan gasket.• : Vehicle Front
• : Oil pan bolts
• Clips (1)
• Drian plug (3)
CAUTION:
• Be sure the oil drain plug is located to the rear of thetransmission assembly.
• Before installing oil pan bolts, remove any traces of old sealant from the sealing su rfaces and threaded holes.
• Do not reuse old gasket, replace with a new one.
• Always replace the oil pan bolts as they are self-sealing.
• Partially install the oil pan bolts in a criss-cross pattern to prevent dislocation of the gasket.
3. Install oil pan bolts and clips tighten in numerical order as shown.
4. Install drain plug with new gasket to oil pan and tighten to speci- fication.
CAUTION:
Do not reuse drain plug gasket.
5. Refill the A/T with fluid and check for fluid leakage. Refer to TM-178, "
Checking the A/T Fluid (ATF)".
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Oil pan bolts : 7.9 N·m (0.81 kg-m, 70 in-lb)
Drain plug : 34 N·m (3.5 kg-m, 25 ft-lb)
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Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-201
< ON-VEHICLE REPAIR >
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CONTROL VALVE WITH TCM
Control Valve with TCM and A/T Fluid Temperature Sensor 2INFOID:0000000006211127
COMPONENTS
CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal.
2. Drain A/T fluid. Refer to TM-180, "
Changing the A/T Fluid (ATF)".
3. Disconnect A/T assembly harness connector.
1. Transmission 2. Snap ring3. Sub-harness
4. Control valve with TCM 5. Bracket6. A/T fluid temperature sensor 2
7. Oil pan gasket 8. Brackets9. Oil pan bolt
10. Oil pan 11. Magnet12. Drain plug
13. Drain plug gasket 14. Terminal cord assembly 15. O-ring
16. O-ring 17. Plug
A/T fluid temperature sensor 2 (A) can be changed to plug (B), depending on vehicles.
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Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-203
< ON-VEHICLE REPAIR >
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10. Remove bolts (A), (B) and (C) from control valve with TCM.
11. 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.
12. Remove the A/T fluid temperature sensor 2 or plug as shown below.
a. A/T fluid temperature sensor 2
i. Remove A/T fluid temperature sensor 2 with bracket from con- trol valve with TCM.
ii. Remove bracket from A/T fluid temperature sensor 2.
b. Plug
: Front
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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Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-205
< ON-VEHICLE REPAIR >
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15. Remove A/T assembly harness connector from control valve with TCM using suitable tool.
16. Disconnect TCM connector (1) and transmission range switch connector. (2)
CAUTION:
Do not damage connectors.
Installation
CAUTION:
• If the A/T fluid temperature sensor 2 has flaws, replace it with a plug.
• After completing installation, check A/T fluid leakage and fluid level. Refer to TM-178, "
Checking the
A/T Fluid (ATF)".
1. Connect TCM connector (1) and transmission range switch con- nector. (2)
2. Install A/T assembly harness connector to control valve with TCM.
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Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-207
< ON-VEHICLE REPAIR >
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i. Install new O-ring (1) in plug (2). CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
• O-ring should be free of contamination.
ii. Install plug (2) to bracket (1).
iii. Install plug (1) [with bracket (2)] to control valve with TCM. Tighten plug bolt ( ) to the specified torque.
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
6. Install control valve with TCM in transmission case. CAUTION:
• Make sure that input speed sensor is securely installed
into input speed sensor hole (A).
• Hang down output speed sensor harness toward outside
so as not to disturb installati on 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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1 : Brake band
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Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-209
< ON-VEHICLE REPAIR >
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12. Securely fasten output speed sensor (1) harness with terminal clip ( ).
13. Install oil pan to transmission case. Refer to TM-199, "
Oil Pan".
14. Pull up A/T assembly harness connector. CAUTION:
Do not damage connector.
15. Install snap ring to A/T assembly harness connector.
16. Connect A/T assembly harness connector.
17. Connect the negative battery terminal.
18. Refill the A/T with fluid and check the fluid level and for fluid leakage. Refer to TM-178, "
Checking the A/T Fluid (ATF)".
REMOVAL AND INSTALLATION OF A/T FLUID TEMPERATURE SENSOR 2
Removal
1. Disconnect negative battery terminal.
2. Remove oil pan and oil pan gasket. Refer to TM-199, "
Oil Pan".
3. Disconnect A/T fluid temperat ure sensor 2 connector (A).
CAUTION:
Do not damage connector.
4. Straighten terminal clip to free A/T fluid temperature sensor 2 harness.
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Revision: March 2010 2008 QX56