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4WD WARNING LAMP BLINKS SLOWLYDLN-103
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4WD WARNING LAMP BLINKS SLOWLY
DescriptionINFOID:0000000006222319
4WD warning lamp blinks at approximately 2 seconds intervals while driving.
Diagnosis ProcedureINFOID:0000000006222320
1.CHECK TIRE
Check the following.
Tire pressure
Wear condition
Front and rear tire size (There is no difference between front and rear tires.)
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts. And t hen, drive the vehicle at speed of 20 km/h (12 MPH)
or more for 5 seconds or more. Improper size information is initialized accordingly.
2.TERMINAL INSPECTION
Check 4WD control unit harness connector for disconnection.
Is the inspection result normal?
YES >> Replace transfer control unit. Refer to DLN-107, "Removal and Installation".
NO >> Repair or replace the error-detected parts.
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![INFINITI QX56 2011 Factory Service Manual
DLN-104
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INFORMATION DISPLAY IS NOT DISPLAYED
INFORMATION DISPLAY IS NOT DISPLAYED
DescriptionINFOID:0000000006222321
Information display is not displayed.
NOTE INFINITI QX56 2011 Factory Service Manual
DLN-104
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INFORMATION DISPLAY IS NOT DISPLAYED
INFORMATION DISPLAY IS NOT DISPLAYED
DescriptionINFOID:0000000006222321
Information display is not displayed.
NOTE](/manual-img/42/57033/w960_57033-1905.png)
DLN-104
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INFORMATION DISPLAY IS NOT DISPLAYED
INFORMATION DISPLAY IS NOT DISPLAYED
DescriptionINFOID:0000000006222321
Information display is not displayed.
NOTE:
When the combination meter receives 4WD shift swit
ch signal, it displays a message on the information dis-
play and inform the driver of 4WD mode st atus. About indication contents, refer to DLN-18, "
4WD SYSTEM :
System Description" (4WD mode).
Diagnosis ProcedureINFOID:0000000006222322
1.CHECK 4WD SHIFT SWITCH
Perform trouble diagnosis for 4WD shift switch. Refer to DLN-67, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK 4WD MODE INDICATOR LAMP
Perform trouble diagnosis for 4WD mode indicator. Refer to DLN-98, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK THE INFORMATION DISPLAY
Check that information except 4WD mode is displayed on information display.
Is the inspection result normal?
YES >> Replace transfer control unit. Refer to DLN-107, "Removal and Installation".
NO >> Check information display. Refer to MWI-29, "
On Board Diagnosis Function".
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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGDLN-105
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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
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![INFINITI QX56 2011 Factory Service Manual
DLN-106
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TRANSFER FLUID
PERIODIC MAINTENANCE
TRANSFER FLUID
InspectionINFOID:0000000006222324
FLUID LEAKAGE
Check transfer surrounding area (oil seal, drain INFINITI QX56 2011 Factory Service Manual
DLN-106
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TRANSFER FLUID
PERIODIC MAINTENANCE
TRANSFER FLUID
InspectionINFOID:0000000006222324
FLUID LEAKAGE
Check transfer surrounding area (oil seal, drain](/manual-img/42/57033/w960_57033-1907.png)
DLN-106
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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
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TRANSFER CONTROL UNITDLN-107
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REMOVAL AND INSTALLATION
TRANSFER CONTROL UNIT
Removal and InstallationINFOID:0000000006222327
REMOVAL
1. Turn the ignition switch OFF.
2. Disconnect negative battery terminal. CAUTION:
Wait for 5 seconds after turning ignition switch OFF.
3. Remove the glove box assembly. Refer to IP-14, "
Removal and Installation".
4. Disconnect the transfer control unit connector.
5. Move instrument lower cover to backward. Refer to IP-14, "
Removal and Installation".
6. Remove the transfer control unit.
INSTALLATION
Note the following, and install in the reverse order of removal.
When replacing transfer control unit, perform writing unit parameter and initial calibration. Refer to DLN-41,
"Work Procedure".
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DLN-108
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4WD MODE SWITCH
4WD MODE SWITCH
Removal and InstallationINFOID:0000000006222328
REMOVAL
NOTE:
4WD shift switch is integrated in 4WD switch assembly.
1. Remove console finisher assembly from center console assembly. Refer to
IP-25, "
Removal and Installa-
tion"
2. Disconnect 4WD switch assembly harness connector.
3. Press 4WD switch assembly fixing pawls, and remove 4WD switch assembly from console finisher
assembly.
INSTALLATION
Install in the reverse order of removal.
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FRONT OIL SEALDLN-109
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FRONT OIL SEAL
Exploded ViewINFOID:0000000006222329
Removal and InstallationINFOID:0000000006222 INFINITI QX56 2011 Factory Service Manual
FRONT OIL SEALDLN-109
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FRONT OIL SEAL
Exploded ViewINFOID:0000000006222329
Removal and InstallationINFOID:0000000006222](/manual-img/42/57033/w960_57033-1910.png)
FRONT OIL SEALDLN-109
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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
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DLN-110
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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