check oil INFINITI QX56 2010 Factory Service Manual

TM-144
< PRECAUTION >
PRECAUTIONS
•After performing each TROUBLE DIAGNOSIS, perform “DTC
(Diagnostic Trouble Code) CONFIRMATION PROCEDURE”.
If the repair is completed the DTC should not be displayed in the
“DTC CONFIRMATION PROCEDURE”.
• Always use the specified brand of ATF. Refer to MA-13, "
Fluids and Lubricants".
• Use paper rags not cloth rags during work.
• After replacing the ATF, dispose of the waste oil using the methods prescribed by law, ordinance, etc.
• Before proceeding with disassembly, thoroughly clean the outside of the transmission. It is important to pre- vent the internal parts from becoming cont aminated by dirt or other foreign matter.
• Disassembly should be done in a clean work area.
• Use lint-free cloth or towels for wiping parts clean. Common shop rags can leave fibers that could interfere
with the operation of the transmission.
• Place disassembled parts in order for easier and proper assembly.
• All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection or
reassembly.
• Gaskets, seals and O-rings should be replaced any time the transmission is disassembled.
• It is very important to perform functional tests whenever they are indicated.
• The valve body contains precision parts and requires extreme care when parts are removed and serviced. Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent springs
and small parts from becoming scattered or lost.
• Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.
• Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings and
seals, or hold bearings and washers in place during assembly. Do not use grease.
• Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.
• Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to TM-
152, "A/T Fluid Cooler Cleaning".
• After overhaul, refill the transmission with new ATF.
• When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque con- verter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer to
TM-150, "
Changing the A/T Fluid (ATF)", TM-148, "Checking the A/T Fluid (ATF)".
Service Notice or PrecautionINFOID:0000000005148719
ATF COOLER SERVICE
• If A/T fluid contains fictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T fluid cooler mounted in the radiator or replace the radiator. Flush cooler lines with
cleaning solvent and compressed air after repair. For A/T fluid cooler cleaning procedure, refer to TM-152,
"A/T Fluid Cooler Cleaning". For radiator replacement, refer to CO-15, "Removal and Installation".
CHECKING AND CHANGING A/T FLUID
• Increase ATF oil temperature to 80 °C (176° F) first, then check and adjust oil level at 65 °C (149° F).
NOTE:
The A/T has both water cooling and air cooling systems . The air cooling system has a bypass valve. When
ATF oil temperature is at or below 50 °C (122° F), it does not flow through the air cooled system. If A/T oil
level is adjusted without flow throughout the entire system, the level will be 10mm lower than required.
Therefore, all piping should be filled with oil when adjusting level.
OBD-II SELF-DIAGNOSIS
• A/T self-diagnosis is performed by the TCM in combination with the ECM. Refer to the table on TM-32,
"CONSULT-III Function (TRANSMISSION)" for the indicator used to display each self-diagnostic result.
• The self-diagnostic results indicated by the MIL ar e automatically stored in both the ECM and TCM memo-
ries.
SEF217U
Revision: April 20092010 QX56

TM-150
< ON-VEHICLE MAINTENANCE >
A/T FLUID
Changing the A/T Fluid (ATF)
INFOID:0000000005148723
CAUTION:
If using the vehicle for towing, the A/T fl uid must be replaced as specified. Refer to MA-9, "
Introduc-
tion of Periodic Maintenance".
1. Drive the vehicle to warm up the A/T fluid to approximately 80 ° C (176 ° F).
2. Stop the engine.
3. Remove the A/T fluid level gauge.
4. Drain the A/T fluid from the drain plug hole, then install the drain plug with a new gasket. Refill the transmission with new A/T
fluid. Always refill with the same volume as the drained A/T fluid.
Use the A/T fluid level gauge to check the A/T fluid level as
shown. Add A/T fluid as necessary.
• To flush out the old A/T fluid from the transmission oil coolers, pour new A/T fluid into the A/T fluid charg-
ing pipe with the engine idling and at the same time drain the old A/T fluid from the auxiliary transmis-
sion oil cooler hose return line.
• When the color of the A/T fluid coming out of the auxiliary transmission oil cooler hose return line is
about the same as the color of the new A/T fluid, flushing out the old A/T fluid is complete. The amount
of new A/T fluid used for flushing should be 30% to 50% increase of the specified capacity.
CAUTION:
• If Genuine NISSAN Matic S ATF is not available, Genuine NISSAN Matic J ATF may also be used.
• Using ATF fluid other than Genuine NISSAN Matic S ATF or Matic J ATF will cause deterioration in driveability and A/T durability, and may damage the A/T, which is not covered by the warranty.
• When filling the transmission with A/T fluid, do not spill the A/T fluid on any heat generating
parts such as the exhaust parts.
• Do not reuse the drain plug gasket.
5. Install the A/T fluid level gauge and tighten the A/T fluid level gauge bolt to specification.
6. Drive the vehicle to warm up the A/T fluid to approximately 80 ° C (176 ° F).
7. Check the fluid level and condition. If the A/T fluid is still dirty, repeat steps 2 through 6.
8. Install the A/T fluid level gauge in the A/T fluid charging pipe and install the A/T fluid level gauge bolt.
9. Tighten the A/T fluid level gauge bolt to specification. Drain plug : Refer to
TM-192, "
Component".
LLIA0071E
A/T fluid grade and capacity : Refer to MA-13, "Fluids and Lubricants".
A/T fluid level
gauge bolt : Refer to TM-186, "
Removal and Installation (2WD)" or TM-188, "Removal and
Installation (4WD)".
LLIA0071E
Revision: April 20092010 QX56

STALL TESTTM-155
< ON-VEHICLE MAINTENANCE >
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STALL TEST
Inspection and JudgmentINFOID:0000000005148726
A/T FLUID CHECK
Fluid Leakage and Fluid Level Check
• Inspect for fluid leakage and check the fluid level. Refer to TM-148, "Checking the A/T Fluid (ATF)".
Fluid Condition Check
Inspect the fluid condition.
STALL TEST
Stall Test Procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the A/
T fluid temperature is 50 to 80 °C (122 to 176 °F). Inspect the
amount of ATF. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
Fluid condition Conceivable Cause Required Operation
Varnished (viscous
varnish state) Clutch, brake
scorchedReplace the ATF and check the A/T
main unit and the vehicle for mal-
functions (wire harnesses, cooler
pipes, etc.)
Milky white or
cloudy Water in the fluidReplace the ATF and check for plac-
es where water is getting in.
Large amount of
metal powder mixed
in Unusual wear of
sliding parts within
A/T
Replace the ATF and check for im-
proper operation of the A/T.
SAT638A
SAT647B
SCIA1224E
Revision: April 20092010 QX56

TM-160
< ON-VEHICLE MAINTENANCE >
ROAD TEST
YES >> Record the malfunction, GO TO 4.
NO >> GO TO 4.
4.CHECK “N” POSITION FUNCTIONS
1. Start the engine.
2. Move selector lever to “N” position.
3. Release the parking brake.
Does vehicle move forward or backward?
YES >> Record the malfunction, GO TO 5.
NO >> GO TO 5.
5.CHECK SHIFT SHOCK
1. Engage the brake.
2. Move selector lever to “D” position.
When the transmission is shifted from
“N” to “D”, is there an excessive shock?
YES >> Record the malfunction, GO TO 6.
NO >> GO TO 6.
6.CHECK “R” POSITION FUNCTIONS
1. Engage the brake.
2. Move selector lever to “R” position.
3. Release the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES >> GO TO 7.
NO >> Record the malfunction, GO TO 7.
7.CHECK “D” POSITION FUNCTIONS
Inspect whether the vehicle creeps forward when the transmission is put into the “D” position.
Does the vehicle creep forward in the
“D” positions?
YES >> Go to TM-160, "Cruise Test - Part 1".
NO >> Record the malfunction and go to TM-160, "
Cruise Test - Part 1".
Cruise Test - Part 1INFOID:0000000005148731
1.CHECK STARTING OUT FROM D1
1. Drive the vehicle for about 10 minutes to warm up the engine oil and ATF. Appropriate temperature for the ATF: 50 - 80° C (122 - 176°F)
2. Park the vehicle on a level surface.
3. Move selector lever to “P” position.
4. Start the engine.
5. Move selector lever to “D” position.
6. Press the accelerator pedal about half way down to accelerate the vehicle.
With CONSULT-III
Read off the gear positions.
Starts from D1?
YES >> GO TO 2.
NO >> Record the malfunction, GO TO 2.
2.CHECK SHIFT-UP D1 → D2
Press down the accelerator pedal about half way and inspect if the vehicle shifts up (D1 → D2) at the appropri-
ate speed.
• Refer to TM-265, "
Vehicle Speed at Which Gear Shifting Occurs".
With CONSULT-III
Read the gear position, throttle degree of opening, and vehicle speed.
Does the A/T shift-up D1
→ D2 at the correct speed?
YES >> GO TO 3.
NO >> Record the malfunction, GO TO 3.
Revision: April 20092010 QX56

TM-170
< ON-VEHICLE REPAIR >
OIL PAN
OIL PAN
Oil PanINFOID:0000000005148740
REMOVAL AND INSTALLATION
Removal
1. Drain A/T fluid. Refer to TM-150, "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 foreign materials in oil pan to help determine c ause of malfunction. If the A/T fluid is very dark, has
some burned smell, or contains foreign particles, 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 the transmission cooler after repair. Refer to TM-152, "
A/T
Fluid Cooler Cleaning".
6. Remove magnets from oil pan.
Installation
1. Install the oil pan magnets as shown.
AWDIA0023ZZ
SCIA5200E
SCIA5200E
Revision: April 20092010 QX56

OIL PANTM-171
< ON-VEHICLE REPAIR >
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2. Install the oil pan and new oil pan gasket. • : Vehicle front
• : Oil pan bolts
• Clips (1)
• Drain plug (3)
CAUTION:
• Be sure the oil pan drain plug hole is located to the rear ofthe transmission assembly.
• Before installing oil pan bolts, remove any traces of old sealant from the sealing su rfaces and threaded holes.
• Do not reuse the oil pan gasket.
• Always replace the oil pan bolts as they are self-sealing.
• Partially install the oil pan bo lts in a criss-cross pattern to prevent dislocation of the gasket.
3. Install new 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 the drain plug gasket.
5. Refill the A/T with fluid and check for fluid leakage. Refer to TM-
148, "Checking the A/T Fluid (ATF)".
AWDIA0023ZZ
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)
SCIA4113E
Revision: April 20092010 QX56

TM-180
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
12. Securely fasten output speed sensor (1) harness with terminalclip ( ).
13. Install oil pan to transmission case. Refer to TM-170, "
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-148, "
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-170, "
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: April 20092010 QX56

TM-182
< ON-VEHICLE REPAIR >
CONTROL VALVE WITH TCM
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-170, "
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-148, "
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-170, "
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: April 20092010 QX56

CONTROL VALVE WITH TCMTM-183
< ON-VEHICLE REPAIR >
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After completing installation, check A/T fluid leakage and fluid level. Refer to TM-148, "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-170, "
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-148, "
Checking the A/T
Fluid (ATF)".
JSDIA1313ZZ
JSDIA1312ZZ
JSDIA1311ZZ
Revision: April 20092010 QX56

TM-184
< ON-VEHICLE REPAIR >
REAR OIL SEAL
REAR OIL SEAL
Rear Oil SealINFOID:0000000005148742
REMOVAL AND INSTALLATION
Removal
1. Remove rear propeller shaft. Refer to DLN-196, "Removal and Installation".
2. Remove transfer from transmission (4WD models). Refer to DLN-141, "
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-
141, "Removal and Installation".
3. Install rear propeller shaft. Refer to DLN-196, "
Removal and
Installation".
4. Check the A/T fluid level and for fluid leakage. Refer to TM-148,
"Checking the A/T Fluid (ATF)".
SCIA5254E
Tool number : ST33400001 (J-26082)
WCIA0475E
Revision: April 20092010 QX56