2011 INFINITI QX56 oil

TRANSFER FLUID VISCOSITY LEARNINGDLN-47
< BASIC INSPECTION > [TRANSFER: ATX90A]
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TRANSFER FLUID VISCOSITY LEARNING
DescriptionINFOID:0000000006222242
Perform transfer fluid viscosity learning and initial calibration after draining and refilling transfer fluid. Refer to
DLN-47, "
Work Procedure".
Work ProcedureINFOID:0000000006222243
NOTE:
In fail-safe mode, can not perform work s upport. (Except that DTC P181F is detected.)
1.PREPARATION BEFORE WORK
With CONSULT-III
1. Start the engine.
CAUTION:
Never drive the vehicle.
2. Check “4WD MODE”, “T/M RANGE”, “COMER VHCL SPEED”, “MOTOR POWER SUP” of CONSULT-III
“DATA MONITOR” for “ALL MODE AWD/4WD”.
3. Continue the following condition more than 10 seconds.
>> GO TO 2.
2.TRANSFER FLUID VISCOSITY LEARNING
With CONSULT-III
1. Select “OIL DETERIORATION INFO RESET” of CONSULT-III “WORK SUPPORT” for “ALL MODE AWD/
4WD”.
2. Select “Start”.
>> GO TO 3.
3.INITIAL CALIBRATION
With CONSULT-III
1. Select “START CALIBRATION” of CONSULT- III “WORK SUPPORT” for “ALL MODE AWD/4WD”.
2. Wait until the motor operation stop. (After approximately 10 seconds)
>> GO TO 4.
4.PERFORM SELF-DIAGNOSIS
With CONSULT-III
1. Erase self-diagnosis result for “ALL MODE AWD/4WD”.
2. Turn the ignition switch ON to OFF.
CAUTION:
Wait for 10 seconds after turning ignition switch OFF.
3. Start the engine.
CAUTION:
Never drive the vehicle.
4. Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is
“DTC P181F” detected?
YES >> GO TO 1.
NO >> WORK END
4WD MODE : AUTO
T/M RANGE : N
COMPER VHCL SPEED : 0 km/h (Never drive the vehicle)
MOTOR POWER SUP : More than 11 V
Revision: 2010 May2011 QX56

DLN-80
< DTC/CIRCUIT DIAGNOSIS >[TRANSFER: ATX90A]
P1826 TRANSFER FLUID TEMPERATURE
P1826 TRANSFER FLUID TEMPERATURE
DTC LogicINFOID:0000000006222285
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
With CONSULT-III
1. Start the engine and drive at 40 km/h (25 MPH) or more for approximately 1minute.
2. Perform self-diagnosis for “ALL MODE AWD/4WD”.
Is DTC
“P1826” detected?
YES >> Proceed to diagnosis procedure. Refer to DLN-80, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000006222286
1.CHECK TRANSFER FLUID TEMPER ATURE SENSOR POWER SUPPLY
1. Turn the ignition switch OFF.
2. Disconnect transfer fluid temperature sensor harness connector.
3. Turn the ignition switch ON. CAUTION:
Never start the engine.
4. Check the voltage between transfer fluid temperature sensor harness connector terminals.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK TRANSFER FLUID TE MPERATURE SENSOR CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect transfer control unit harness connector.
3. Check the continuity between transfer control uni t harness connector and transfer control actuator har-
ness connector.
4. Check the continuity between transfer flui d temperature sensor harness connector and ground.
DTC Display item Malfunction detected condition Possible cause
P1826 OIL TEMP SEN When vehicle speed is 40km/h or more
and transfer fluid temperature is lower
than normal
Transfer fluid temperature
 Malfunction of transfer fluid tempera-
ture sensor circuit (open)
When transfer fluid temperature is high-
er than normal Transfer fluid temperature
 Malfunction of transfer fluid tempera-
ture sensor circuit (short)
+ −
Voltag e
Transfer fluid temperature sensor
Connector Terminal F37 2 1 Approx. 5 V
Transfer control unit Transfer fluid temperature sensor Continuity
Connector Terminal Connector Terminal
E59 7
F37 2
Existed
36 1
Revision: 2010 May2011 QX56

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGDLN-105
< SYMPTOM DIAGNOSIS > [TRANSFER: ATX90A]
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NOISE, VIBRATION AND HARSHN ESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000006222323
Use the chart below to find the cause of the symptom. The number s indicate the order of the inspection. If necessary, repair or replace these
parts.
Reference
DLN-106, "
Inspection
"—
Front oil seal: DLN-109, "
Exploded View
"
Rear oil seal: DLN-111, "
Exploded View
"
—
—
—
SUSPECTED PARTS
(Possible cause)
TRANSFER FLUID (Level low)
TRANSFER FLUID (Wrong)
TRANSFER FLUID (Level too high)
LIQUID GASKET (Damaged)
OIL SEAL (Worn or damaged)
GEAR (Worn or damaged)
BEARING (Worn or damaged)
TRANSFER CASE (Damaged)
Symptom Noise 1 2 3 3 3
Transfer fluid leakage 4 1 2 2 3
Revision: 2010 May2011 QX56

DLN-106
< PERIODIC MAINTENANCE >[TRANSFER: ATX90A]
TRANSFER FLUID
PERIODIC MAINTENANCE
TRANSFER FLUID
InspectionINFOID:0000000006222324
FLUID LEAKAGE
Check transfer surrounding area (oil seal, drain plug, and filler plug etc.) for fluid leakage.
FLUID LEVEL
1. Remove filler plug (1) and gasket. Then check that fluid is filled
up from mounting hole for the filler plug.
CAUTION:
Never start engine whil e checking fluid level.
2. Set a new gasket onto filler plug (1), and install it on transfer and then tighten to the specified torque.
CAUTION:
Never reuse gasket.
DrainingINFOID:0000000006222325
1. Run the vehicle to warm up the transfer unit sufficiently.
2. Stop the engine.
3. Remove the drain plug (1) and drain transfer fluid.
4. Set a new gasket onto drain plug (1), and install it to transfer andtighten to the specified torque.
CAUTION:
Never reuse gasket.
RefillingINFOID:0000000006222326
1. Remove filler plug (1). Fill up with new transfer fluid up to mount-ing hole for the filler plug.
CAUTION:
Carefully fill the fluid. (Fill up for approximately 3 minutes.)
2. Leave the vehicle for 3 minutes, and check the fluid level again.
3. Set a new gasket onto filler plug, and install it on transfer and tighten to the specified torque.
CAUTION:
Never reuse gasket.
4. Perform learning of transfer fluid viscosity. Refer to DLN-47, "
Work Procedure".
Specified torque : 33 N·m (3.4 kg-m, 24 ft-lb)
JPDIE0295ZZ
Specified torque : 33 N-m (3.4 kg-m, 24 ft-lb)
JPDIE0245ZZ
Fluid grade and Viscosity : Refer to
MA-10, "Fluids
and Lubricants".
Fluid capacity : Refer to DLN-124, "
Gen-
eral Specifications".
Specified torque : 33 N-m (3.4 kg-m, 24 ft-lb)
JPDIE0295ZZ
Revision: 2010 May2011 QX56

FRONT OIL SEALDLN-109
< REMOVAL AND INSTALLATION > [TRANSFER: ATX90A]
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FRONT OIL SEAL
Exploded ViewINFOID:0000000006222329
Removal and InstallationINFOID:0000000006222330
REMOVAL
1. Remove the drain plug to drain the transfer fluid. Refer to DLN-106, "Draining".
2. Remove the front propeller shaft. Refer to DLN-129, "
Removal and Installation".
3. Remove the plug.
4. Remove the O-ring from the plug.
5. Remove the snap ring.
6. Remove the front shaft flange, using a plastic hammer.
7. Remove the dust shield from the front shaft flange, using puller and replacer.
8. Remove front oil seal from front case. CAUTION:
Never damage the front case.
INSTALLATION
1. Plug 2. O-ring 3. Snap ring
4. Transfer assembly 5. Front oil seal 6. Dust shield
7. Front shaft flange
: Vehicle front
: Apply transfer fluid. Refer to MA-10, "
Fluids and Lubricants".
Refer to GI-4, "
Components" for symbols not described above.
JPDIE0280GB
A : Puller (commercial service tool)
B : Replacer (commercial service tool)
JPDIE0163ZZ
Revision: 2010 May2011 QX56

DLN-110
< REMOVAL AND INSTALLATION >[TRANSFER: ATX90A]
FRONT OIL SEAL
1. Install front oil seal with a drift (A) (commercial service tool)
within the dimension (L) shown as follows.
CAUTION:
 Never reuse front oil seal.
 Apply transfer fluid onto circumference of oil seal.
2. Install the dust shield to the front shaft flange.
3. Install the front shaft flange.
4. Install the snap ring. CAUTION:
Never reuse the snap ring.
5. Install the O-ring to plug. CAUTION:
 Never reuse the O-ring.
 Never damage the O-ring.
6. Tighten the plug to specified torque.
7. Install front propeller shaft. Refer to DLN-129, "
Removal and Installation".
8. Fill with new transfer fluid, check fluid level and for fluid leakage. Refer to DLN-106, "
Inspection".
L : 5.3 – 5.7 mm
JPDIE0160ZZ
Revision: 2010 May2011 QX56

REAR OIL SEALDLN-111
< REMOVAL AND INSTALLATION > [TRANSFER: ATX90A]
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REAR OIL SEAL
Exploded ViewINFOID:0000000006222331
Removal and InstallationINFOID:0000000006222332
REMOVAL
1. Remove the rear propeller shaft. Refer to DLN-144, "Removal and Installation".
2. Put matching marks (A) on the end of the main shaft and the rear companion flange.
CAUTION:
For matching mark, using paint. Never damage main shaft.
3. Remove the snap ring.
4. Remove the adjusting shim.
5. Remove the rear companion flange, using a plastic hammer.
6. Remove the dust shield from rear companion flange, using the drift, puller and replacer.
7. Remove the o-ring from rear companion flange.
8. Remove the rear oil seal from rear case. CAUTION:
Never damage rear case and main shaft.
INSTALLATION
1. Snap ring 2. Adjusting shim 3. O-ring
4. Rear companion flange 5. Dust shield 6. Rear oil seal
7. Transfer assembly
: Vehicle front
: Apply transfer fluid. Refer to MA-10, "
Fluids and Lubricants".
Refer to GI-4, "
Components" for symbols not described above.
JPDIE0281ZZ
JPDIE0162ZZ
A : Drift [SST: ST30701000 (J-25742-2)]
B : Puller (commercial service tool)
C : Replacer (commercial service tool)
JPDIE0159ZZ
Revision: 2010 May2011 QX56

DLN-112
< REMOVAL AND INSTALLATION >[TRANSFER: ATX90A]
REAR OIL SEAL
1. Install rear oil seal, with a drift (A) [SST: KV40104710 ( —
] within the dimension (L) show as follows.
CAUTION:
 Never reuse front oil seal.
 Apply transfer fluid onto circumference of oil seal.
2. Install the dust shield to the rear companion flange.
3. Install the rear companion flange to main shaft. CAUTION:
 Align the matching marks (A) of main shaft and rear com-panion flange.
 Install bolt (A) (M12 ×1.75 mm) to main shaft, then install
the rear companion flange by hammering while pulling the
bolt.
4. Install the O-ring (3) to gap between rear companion flange (1) and main shaft (2).
CAUTION:
 Never reuse the O-ring.
 Never damage the O-ring.
5. Select adjusting shim. Refer to DLN-112, "
Adjustment".
6. Install adjusting shim.
7. Install the snap ring.
8. Install the rear propeller shaft. Refer to DLN-144, "
Removal and
Installation".
9. Check fluid level and for fluid leakage. Refer to DLN-106,
"Inspection".
AdjustmentINFOID:0000000006222333
ADJUSTING SHIM
1. Remove the snap ring.
2. Remove the adjusting shim.
3. Remove the O-ring.L : 2.8 – 3.2
JPDIE0164ZZ
JPDIE0162ZZ
JPDIE0165ZZ
JSDIA0505ZZ
Revision: 2010 May2011 QX56