2009 INFINITI QX56 transmission fluid

TM-176
< PRECAUTION >
PRECAUTIONS
 All parts should be carefully cleaned with a general purpose, non-flammable solvent before inspection orreassembly.
 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 s lide 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-
183, "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-181, "Changing the A/T Fluid (ATF)"
.
Service Notice or PrecautionINFOID:0000000003772016
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 radiat or 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-183,
"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 entir e 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.
Always perform the procedure on TM-30, "OBD-II Diagnostic Trouble Code (DTC)"
to complete the
repair and avoid unnecessary blinking of the MIL.
For details of OBD-II, refer to TM-30
.
 Certain systems and components, especially those related to OBD, may use the new style slide-
locking type harness connector. For descrip tion and how to disconnect, refer to PG-68
.
Revision: December 20092009 QX56

A/T FLUIDTM-179
< ON-VEHICLE MAINTENANCE >
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ON-VEHICLE MAINTENANCE
A/T FLUID
Checking the A/T Fluid (ATF)INFOID:0000000004187473
CAUTION:
If using the vehicle for towing, the A/T fl uid must be replaced as specified. Refer to MA-8, "Introduc-
tion of Periodic Maintenance".
1. Before driving, the A/T fluid level can be checked at A/T fluid temperatures of 30 ° to 50 ° C (86 ° to 122 ° F) using the “COLD”
range on the A/T fluid level gauge as follows:
a. Park the vehicle on a level surface and set the parking brake.
b. Start the engine and move the selector lever through each gear position. Shift the selector lever into the “P” position.
c. Check the A/T fluid level with the engine idling.
d. Remove the A/T fluid level gauge and wipe it clean with a lint- free paper.
CAUTION:
When wiping the A/T fluid fr om the A/T fluid level gauge,
always use a lint-free paper, not a cloth.
e. Re-insert the A/T fluid level gauge into the A/T fluid charging pipe until the cap contacts the t op of the A/T fluid charging pipe
as shown.
CAUTION:
To check A/T fluid level, insert th e A/T fluid level gauge until
the cap contacts the top of the A/T fluid charging pipe, with
the gauge reversed from the normal inserted position.
f. Remove the A/T fluid level gauge and note the A/T fluid level. If the A/T fluid level is at low side of range, add A/T fluid to the
transmission through the A/T fluid charging pipe.
CAUTION:
Do not overfill the tran smission with A/T fluid.
g. Install the A/T fluid level gauge and the A/T fluid level gauge bolt.
2. Warm up the engine and transmission.
3. Check for any A/T fluid leaks.
4. Drive the vehicle to increase the A/T fluid temperature to 80 ° C (176 ° F).
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A/T fluid level
gauge bolt : Refer to
TM-214, "Removal and Installation (2WD)" or TM-216, "Removal
and Installation (4WD)"
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TM-180
< ON-VEHICLE MAINTENANCE >
A/T FLUID
5. Allow the A/T fluid temperature to fall to approximately 65°C (149 °F). Use the CONSULT-III to monitor the
A/T fluid temperature as follows:
NOTE:
The A/T fluid level will be significantly affected by t he A/T fluid temperature as shown. Therefore monitor
the A/T fluid temperature data using the CONSULT-III.
a. Connect CONSULT-III to data link connector.
b. Select “MAIN SIGNALS” in “DATA MONI TOR” mode for “A/T” with CONSULT-III.
c. Read out the value of “ATF TEMP 1”.
6. Re-check the A/T fluid level at A/T fluid temperatures of approxi- mately 65 °C (149 °F) using the “HOT” range on the A/T fluid
level gauge as shown. The HOT range is between 50 ° - 80 ° C
(122 ° - 176 ° F).
CAUTION:
 When wiping the A/T fluid from the A/T fluid level gauge,
always use lint-free paper, not a cloth.
 To check the A/T fluid level , insert the A/T fluid level
gauge until the cap contacts th e top of the A/T fluid charg-
ing pipe, with the gauge reversed from the normal
inserted position as shown.
7. Check the A/T fluid condition.  If the A/T fluid is very dark or has some burned smell, there
may be an internal problem with the transmission. Refer to
TM-183, "A/T Fluid Cooler Cleaning"
. Flush the transmission
cooling system after repairing the transmission.
 If the A/T fluid contains frictional material (clutches, bands, etc.), replace the radiator and flush the transmission cooler
lines using cleaning solvent and compressed air after repairing
the transmission.
8. Install the A/T fluid level gauge in the A/T fluid charging pipe.
9. Tighten the A/T fluid level gauge bolt to specification.
SLIA0016E
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A/T fluid level
gauge bolt : Refer to
TM-214, "Removal and Installation (2WD)" or TM-216, "Removal
and Installation (4WD)"
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A/T FLUIDTM-181
< ON-VEHICLE MAINTENANCE >
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Changing the A/T Fluid (ATF)INFOID:0000000005892327
CAUTION:
If using the vehicle for towing, the A/T fl uid must be replaced as specified. Refer to MA-8, "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 drai n 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 o il 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 aux iliary 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 t he 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-201, "Oil Pan"
.
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A/T fluid grade and capacity : Refer to MA-12, "Fluids and Lubricants".
A/T fluid level
gauge bolt : Refer to
TM-214, "Removal and Installation (2WD)"
or TM-216, "Removal and
Installation (4WD)".
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Revision: December 20092009 QX56

A/T FLUID COOLERTM-183
< ON-VEHICLE MAINTENANCE >
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A/T FLUID COOLER
A/T Fluid Cooler CleaningINFOID:0000000004187475
Whenever an A/T is repaired, overhauled, or replaced, t he A/T fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can becom e trapped in the A/T fluid cooler. This debris can con-
taminate the newly serviced A/T or, in severe cases, can bl ock or restrict the flow of A/T fluid. In either case,
malfunction of the newly serviced A/T may result.
Debris, if present, may build up as A/T fluid enters the c ooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
A/T FLUID COOLER CLEANING PROCEDURE
1. Position a drain pan under the A/T inlet and outle t fluid cooler tube to cooler hose connection.
2. Put a different color matching mark on each cooler tube to cooler hose connection to aid in assembly. CAUTION:
Use paint to make the matching mark. Do not damage the tubes or hose.
3. Disconnect the fluid cooler inle t and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Drain any A/T fluid from the cooler hose.
5. Insert the extension adapter hose of a can of Transmission Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
 Wear safety glasses and rubber gloves when spraying theTransmission Cooler Cleaner.
 Spray cooler cleaner only with adequate ventilation.
 Avoid contact with eyes and skin.
 Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis- sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the tip of the air gun and the cooler out- let hose.
9. Blow compressed air regulated to 490 - 883 kPa (5 - 9 kg/cm
2, 71 - 128 psi) through the cooler outlet hose
for 10 seconds to force out any remaining fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the fluid cooler tubes to the A/T.
12. Remove the banjo bolts.
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TM-184
< ON-VEHICLE MAINTENANCE >
A/T FLUID COOLER
13. Flush each steel line from the cooler side back toward the A/T by spraying Transmission Cooler Cleanerin a continuous stream for 5 seconds.
14. Blow compressed air regulated to 490 - 883 kPa (5 - 9 kg/cm
2, 71 - 128 psi) through each steel line from
the cooler side back toward the A/T for 10 seconds to force out any remaining fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform A/T fluid cooler diagnosis procedure.
A/T FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exte rior may lead to inaccurate debris identification.
1. Position a drain pan under the A/T inlet and outlet fluid cooler tube to cooler hose connection.
2. Clean the exterior and tip of the cooler inlet hose.
3. Put a different color matching mark on each cooler tube to cooler hose connection to aid in assembly. CAUTION:
Use paint to make the matching mark. Do not damage the tubes or hose.
4. Disconnect the fluid cooler inle t and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
5. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:
 Wear safety glasses and rubber gloves when spraying the
Transmission Cooler Cleaner.
 Spray cooler cleaner only wi th adequate ventilation.
 Avoid contact with eyes and skin.
 Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis- sion Cooler Cleaner in a continuous stream into the cooler outlet
hose until fluid flows out of the cooler inlet hose for 5 seconds.
7. Tie a common white, basket-type coffee filter to the end of the cooler inlet hose.
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Revision: December 20092009 QX56

OIL PANTM-201
< ON-VEHICLE REPAIR >
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OIL PAN
Oil PanINFOID:0000000005880214
REMOVAL AND INSTALLATION
Removal
1. Drain A/T fluid. Refer to TM-181, "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 varnis h 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-183, "A/T
Fluid Cooler Cleaning".
6. Remove magnets from oil pan.
Installation
1. Install the oil pan magnets as shown.
AWDIA0023ZZ
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TM-202
< ON-VEHICLE REPAIR >
OIL PAN
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 bolts 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-
179, "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: December 20092009 QX56