2007 INFINITI QX56 engine

TRANSFER MOTOR
TF-125
< SERVICE INFORMATION >
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TRANSFER MOTOR
Removal and InstallationINFOID:0000000003532568
REMOVAL
1. Disconnect the transfer motor connector.
2. Remove the air breather hose from the transfer motor. Refer to
TF-122, "
Removal and Installation".
3. Remove the transfer motor bolts.
4. Remove the transfer motor.
INSTALLATION
1. Apply ATF to the new O-ring and install it to the transfer motor.
CAUTION:
Do not reuse O-rings.
2. Fit the double-flat end of the transfer motor shaft into the slot of
the sub-oil pump assembly. Then tighten to the specified torque.
Refer to TF-128, "
Disassembly and Assembly".
CAUTION:
Be sure to install connector bracket.
3. Install the air breather hose to the transfer motor. Refer to TF-
122, "Removal and Installation".
4. Connect the transfer motor connector.
5. Check the transfer fluid. Refer to TF-11, "
Replacement".
6. Start the engine for one minute. Then stop the engine and recheck the transfer fluid. Refer to TF-11,
"Inspection".
SDIA2133E
SDIA2787E

TRANSFER OIL FILTER
TF-127
< SERVICE INFORMATION >
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3. Apply ATF to the two new O-rings (1), and install them on the oil
filter (2).
CAUTION:
Do not reuse O-rings.
4. Install the oil filter to the transfer assembly. Tighten the bolts to
the specified torque. Refer to TF-128, "
Disassembly and
Assembly".
CAUTION:
• Do not damage oil filter.
• Attach oil filter and tighten bolts evenly.
5. Check the transfer fluid. Refer to TF-11
.
6. Start the engine and let it run for one minute. Then stop the
engine and recheck the transfer fluid. Refer to TF-11
.
WDIA0285E
SDIA2136E

TF-128
< SERVICE INFORMATION >
TRANSFER ASSEMBLY
TRANSFER ASSEMBLY
Removal and InstallationINFOID:0000000003532570
REMOVAL
1. Remove the drain plug and gasket. Drain the fluid. Refer to TF-11, "Replacement".
2. Remove the A/T undercover using power tool.
3. Remove the center exhaust tube and main muffler. Refer to EX-3, "
Removal and Installation".
4. Remove the front and rear propeller shafts. Refer to PR-4, "
Removal and Installation" (front), PR-8,
"Removal and Installation" (rear).
CAUTION:
Do not damage spline, sleeve yoke and rear oil seal when removing rear propeller shaft.
NOTE:
Insert a plug into the rear oil seal after removing the rear propeller shaft.
5. Remove the A/T nuts from the A/T crossmember.
6. Position two suitable jacks under the A/T and transfer assembly.
7. Remove the crossmember. Refer to AT-223, "
Removal and Installation (2WD)".
WARNING:
Support A/T and transfer assembly using two suitable jacks while removing crossmember.
8. Disconnect the electrical connectors from the following:
•ATP switch
• Neutral 4LO switch
• Wait detection switch
• Transfer motor
• Transfer control device
• Transfer terminal cord assembly
9. Disconnect each air breather hose from the following. Refer to TF-122, "
Removal and Installation".
• Actuator
• Breather tube (transfer)
• Transfer motor (case connector)
10. Remove the transfer control device from the extension housing.
11. Remove the transfer to A/T and A/T to transfer bolts.
WARNING:
Support transfer assembly with suitable jack while removing it.
12. Remove the transfer assembly.
INSTALLATION
Installation is in the reverse order of removal.
• Tighten the bolts to specification.
• After installation check the transfer fluid level and for fluid leakage.
Refer to TF-11
.
• After filling, start the engine and let it run for one minute. Then stop
the engine and recheck the transfer fluid.
Disassembly and AssemblyINFOID:0000000003532571
COMPONENTS
Bolt length : 45 mm (1.77 in)
Transfer bolt torque : 36 N·m (3.7 kg-m, 27 ft-lb)
SDIA3181E

FRONT WIPER AND WASHER SYSTEM
WW-3
< SERVICE INFORMATION >
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FRONT WIPER AND WASHER SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000003533551
System DescriptionINFOID:0000000003533552
• Both front wiper relays are located in the IPDM E/R (intelligent power distribution module engine room).
• The wiper switch (combination switch) is composed of a combination of 5 output terminals and 5 input termi-
nals. Terminal combination status is read by the BCM when the wiper switch is turned ON.
• BCM controls front wiper LO, HI, and INT (intermittent) operation.
• IPDM E/R (intelligent power distribution module engine room) operates the wiper motor according to CAN
communication signals from the BCM.
Power is supplied at all times
• through 50A fusible link (letter f, located in the fuse and fusible link box)
• to BCM terminal 70, and
• through 30A fuse (No. 39, located in the IPDM E/R)
• to front wiper relay (located in the IPDM E/R).
With the ignition switch in ON or START position, power is supplied
• through 10A fuse (No. 9, located in the fuse block J/B)
• to combination switch terminal 14, and
• through 10A fuse (No. 59 located in the fuse and relay box)
• to BCM terminal 38.
Ground is supplied
• to BCM terminal 67 and
• to combination switch terminal 12
• through grounds M57, M61 and M79, and
• to IPDM E/R terminals 38 and 59 and
• to front wiper motor terminal 1
• through grounds E9, E15, and E24.
WKIA5719E
1. IPDM E/R
E118, E119, E120, E121, E122, E123, E1242. Air cleaner case 3. Front and rear washer motor connector
E105
4. Washer fluid reservoir 5. Front wiper motor
E236. Combination switch (wiper switch) M28
7. BCM M18, M20