INFINITI QX56 2008 Factory Service Manual

TM-204
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
i. Remove plug (1) with bracket (2) from control valve with TCM.
ii. Remove bracket (1) from plug (2).
iii. Remove O-ring (1) from plug (2).
13. Remove O-ring from A/T assembly harness connector.
14. Disconnect TCM connectors.CAUTION:
Do not damage connectors.
: Bolt
JSDIA1311ZZ
JSDIA1312ZZ
JSDIA1313ZZ
SCIA5155E
SCIA5447E
Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-205
< ON-VEHICLE REPAIR >
CEF
G H
I
J
K L
M A
B
TM
N
O P
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.
SCIA5448E
JSDIA1317ZZ
JSDIA1317ZZ
SCIA5450E
Revision: March 2010 2008 QX56

TM-206
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
3. Connect TCM connector.
4. Install new O-ring in A/T assembly harness connector.CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
5. Install the A/T fluid temperature sensor 2 or plug as shown below.
a. A/T fluid temperature sensor 2
i. Install A/T fluid temperature sensor 2 to bracket.
ii. Install A/T fluid temperature sensor 2 (with bracket) to control valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque.
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
b. Plug
NOTE:
• When replacing the A/T fluid temperature sensor 2 with the plug, the A/T fluid temperature sensor 2 con-
nector should not be connected.
• Fold the terminal clips.
SCIA5447E
SCIA5155E
SCIA5264E
SCIA5253E
Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-207
< ON-VEHICLE REPAIR >
CEF
G H
I
J
K L
M A
B
TM
N
O P
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.
JSDIA1313ZZ
JSDIA1312ZZ
JSDIA1311ZZ
1 : Brake band
JSDIA1318ZZ
SCIA5142E
Revision: March 2010 2008 QX56

TM-208
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
7. Install bolts (A), (B) and (C) in control valve with TCM.
8. Tighten bolt (1A), (2B) and (3A) temporarily to prevent disloca-tion. After that tighten them in order (1 → 2 → 3).
9. Tighten control valve with TCM bolts to the specified torque.
10. After installing the A/T fluid temperature sensor 2, connect the A/T fluid temperature sensor 2 connector
as shown below.
a. Connect A/T fluid temperature sensor 2 connector (A).
b. Securely fasten terminal cord assembly and A/T fluid tempera- ture sensor 2 harness with terminal clips ( ).
11. Connect output speed sensor connector. (1)
: Front
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA8074E
: Front
Bolt symbol AB C
Number of bolts 56 1
Length mm (in) 42 (1.65) 55 (2.17)40 (1.57)
Tightening torque
N·m (km-g, in-lb) 7.9 (0.81, 70)With ATF applied
7.9 (0.81, 70)
SCIA8075E
SCIA8124E
JSDIA1319ZZ
Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-209
< ON-VEHICLE REPAIR >
CEF
G H
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J
K L
M A
B
TM
N
O P
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.
JSDIA1316ZZ
SCIA5038E
SCIA5039E
SCIA8125E
Revision: March 2010 2008 QX56

TM-210
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
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.
Installation
CAUTION:
• If the A/T fluid temperature sensor 2 has flaws, replace it with a plug.
• After completing installa tion, check A/T fluid leakage and fluid level. Refer to TM-178, "
Checking the
A/T Fluid (ATF)".
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 bolt to
the specified torque.
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
SCIA5253E
SCIA5264E
SCIA5264E
SCIA5253E
Revision: March 2010 2008 QX56

CONTROL VALVE WITH TCMTM-211
< ON-VEHICLE REPAIR >
CEF
G H
I
J
K L
M A
B
TM
N
O P
3. Connect A/T fluid temperature sensor 2 connector (A).
4. Securely fasten A/T fluid temperature sensor 2 harness with ter- minal clip ( ).
5. Install oil pan to transmission case. Refer to TM-199, "
Oil Pan".
6. Connect the negative battery terminal.
7. 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 PLUG
Removal
1. Disconnect negative battery terminal.
2. Remove oil pan and oil pan gasket. Refer to TM-199, "
Oil Pan".
3. Remove plug (1) with bracket (2) from control valve with TCM.
4. Remove bracket (1) from plug (2).
5. Remove O-ring (1) from plug (2).
Installation
CAUTION:
SCIA8125E
: Bolt
JSDIA1311ZZ
JSDIA1312ZZ
JSDIA1313ZZ
Revision: March 2010 2008 QX56

TM-212
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
After completing installation, check A/T fluid leakage and fluid level. Refer to TM-178, "Checking the A/
T Fluid (ATF)".
1. 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.
2. Install plug (2) to bracket (1).
3. Install plug (1) [with bracket (2)] in 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.
4. Install oil pan to transmission case. Refer to TM-199, "
Oil Pan".
5. Connect the negative battery terminal.
6. 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)".
JSDIA1313ZZ
JSDIA1312ZZ
JSDIA1311ZZ
Revision: March 2010 2008 QX56

REAR OIL SEALTM-213
< ON-VEHICLE REPAIR >
CEF
G H
I
J
K L
M A
B
TM
N
O P
REAR OIL SEAL
Rear Oil SealINFOID:0000000004917436
REMOVAL AND INSTALLATION
Removal
1. Remove rear propeller shaft. Refer to DLN-194, "Removal and Installation".
2. Remove transfer from transmission (4WD models). Refer to DLN-139, "
Removal and Installation".
3. Remove rear oil seal using suitable tool. CAUTION:
Do not scratch rear extension assembly (2WD models) or
adapter case assembly (4WD models).
Installation
1. Install new rear oil seal until it is flush into the rear extensioncase (2WD models) using Tool or adapter case (4WD models)
using suitable tool.
CAUTION:
• Apply ATF to rear oil seal.
• Do not reuse rear oil seal.
2. Install transfer to transmission (4WD models). Refer to DLN-
139, "Removal and Installation".
3. Install rear propeller shaft. Refer to DLN-194, "
Removal and
Installation".
4. Check the A/T fluid level and for fluid leakage. Refer to TM-178,
"Checking the A/T Fluid (ATF)".
SCIA5254E
Tool number : ST33400001 (J-26082)
WCIA0475E
Revision: March 2010 2008 QX56