2009 INFINITI QX56 Rax

BRC-114
< REMOVAL AND INSTALLATION >[VDC/TCS/ABS]
WHEEL SENSORS
REMOVAL AND INSTALLATION
WHEEL SENSORS
Removal and InstallationINFOID:0000000003772637
REMOVAL
1. Remove wheel sensor bolt.
• When removing the front wheel sensor, first remove t he disc rotor to gain access to the front wheel sen-
sor bolt. Refer to BR-31, "
Removal and Installation of Brake Caliper and Rotor".
• When removing the rear wheel sensor, first remove the rear hub and bearing assembly to gain access to
the rear wheel sensor bolt. Refer to RAX-7, "
Removal and Installation".
2. Pull out the sensor, being careful to turn it as little as possible. CAUTION:
• Do not pull on the sensor harness.
3. Disconnect wheel sensor harness electrical connec tor, then remove harness from attaching points.
INSTALLATION
Installation is in the reverse order of removal. Tighten wheel sensor bolt to specification.
CAUTION:
• Inspect wheel sensor O-ring, replace sensor assembly if damaged.
• Before installing wheel sensor, make sure no foreign materials (such as iron fragments) are adhered
to the pick-up part of the sensor, to the inside of the sensor hole or on the rotor mating surface.
• Apply a coat of suitable grease to the wheel sensor O-ring and hole. Refer to MA-12, "
Fluids and
Lubricants".
WFIA0376E
Revision: December 20092009 QX56

SENSOR ROTORBRC-115
< REMOVAL AND INSTALLATION > [VDC/TCS/ABS]
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SENSOR ROTOR
Removal and InstallationINFOID:0000000003772638
NOTE:
The wheel sensor rotors are built into the wheel hubs and are not removable. If damaged, replace wheel hub
and bearing assembly. Refer to FA X - 7 , "
Removal and Installation" (front), RAX-7, "Removal and Installation"
(rear).
Revision: December 20092009 QX56

DLN-184
< SYMPTOM DIAGNOSIS >[PROPELLER SHAFT: 2F1310]
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003772204
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
DLN-185, "On-Vehicle Service"DLN-185, "On-Vehicle Service"DLN-185, "On-Vehicle Service"
DLN-208, "NVH Troubleshooting Chart"RAX-5, "NVH Troubleshooting Chart"RSU-5, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"FAX-9, "Removal and Installation"BR-6, "NVH Troubleshooting Chart"ST-12, "NVH Troubleshooting Chart"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Steering
Symptom
Noise
×××××××××××
Shake ×××××××
Vibration ××××××××
Revision: December 20092009 QX56

DLN-194
< SYMPTOM DIAGNOSIS >[PROPELLER SHAFT: 2S1410]
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000003772211
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
DLN-195, "On-Vehicle Service"DLN-195, "On-Vehicle Service"DLN-195, "On-Vehicle Service"
DLN-242, "NVH Troubleshooting Chart"RAX-5, "NVH Troubleshooting Chart"RSU-5, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"

RAX-5, "NVH Troubleshooting Chart"
BR-6, "NVH Troubleshooting Chart"ST-12, "NVH Troubleshooting Chart"
Possible cause and suspected parts
Uneven rotation torque
Rotation imbalance
Excessive run out
Differential
Axle
Suspension
Tires
Road wheel
Drive shaft
Brakes
Steering
Symptom Noise
×××××××××××
Shake ×××××××
Vibration ××××××××
Revision: December 20092009 QX56

DLN-242
< SYMPTOM DIAGNOSIS >[REAR FINAL DRIVE: R230]
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting ChartINFOID:0000000004193552
Use the chart below to help you find the cause of the sy mptom. If necessary, repair or replace these parts.
×: ApplicableReference page
DLN-253, "Disassembly and Assembly"DLN-253, "Disassembly and Assembly"DLN-253, "Disassembly and Assembly"DLN-270, "Inspection and Adjustment"DLN-270, "Inspection and Adjustment"
MA-12, "Fluids and Lubricants"
DLN-194, "NVH Troubleshooting Chart"RAX-5, "NVH Troubleshooting Chart"RSU-5, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"WT-36, "NVH Troubleshooting Chart"RAX-5, "NVH Troubleshooting Chart"BR-6, "NVH Troubleshooting Chart"ST-12, "NVH Troubleshooting Chart"
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
REAR AXLE
REAR SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise
××××××× ××××××
Revision: December 20092009 QX56

FRONT OIL SEALDLN-245
< ON-VEHICLE REPAIR > [REAR FINAL DRIVE: R230]
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ON-VEHICLE REPAIR
FRONT OIL SEAL
Removal and InstallationINFOID:0000000005877760
REMOVAL
1. Remove the drive shafts from the rear final drive assembly. Refer to RAX-9, "Removal and Installation".
2. Remove the side flanges and side oil seals. Refer to DLN-247, "Removal and Installation"
.
3. Remove the rear propeller shaft. Refer to DLN-196, "Removal and Installation"
.
4. Measure the total preload torque. Refer to DLN-253, "Disassembly and Assembly"
.
NOTE:
Record the total preload torque measurement.
5. Remove the drive pinion lock nut using suitable tool.
6. Put matching marks on the companion flange and drive pinion using paint. CAUTION:
Use paint to make the matching marks. Do not da mage the companion flange or drive pinion.
7. Remove the companion flange using suitable tool.
8. Remove the front oil seal using Tool.
INSTALLATION
SDIA1142E
SDIA1054E
Tool number : KV381054S0 (J-34286)
SDIA0485E
Revision: December 20092009 QX56

SIDE OIL SEALDLN-247
< ON-VEHICLE REPAIR > [REAR FINAL DRIVE: R230]
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SIDE OIL SEAL
Removal and InstallationINFOID:0000000004193557
REMOVAL
1. Remove the drive shaft from the rear final drive assembly. Refer to RAX-9, "Removal and Installation".
2. Remove the side flange using Tools.
3. Remove the side oil seal using suitable tool. CAUTION:
Do not to damage gear carrier.
INSTALLATION
1. Apply multi-purpose grease to the lips of the new side oil seal.
Then drive the new side oil seal in evenly until it becomes flush
with the gear carrier using Tool.
CAUTION:
 Do not reuse side oil seal.
 Do not incline the new side oil seal when installing.
 Apply multi-purpose grease to th e lips of the new side oil
seal.
2. Install the side flange using Tool.
a. Install the Tool to the side oil seal as shown.
b. Insert the side flange until the serrated part of the side flange has engaged the serrated part of the side gear and remove the
Tool.
c. Drive in the side flange using suitable tool. NOTE:
Installation is completed when the driving sound of the side
flange turns into a sound which seems to affect the whole rear
final drive assembly.
3. Installation of the remaining components is in the reverse order of removal. CAUTION:Tool numbers A: KV40104100 ( — )
B: ST36230000 (J-25840-A)
WDIA0115E
LDIA0109E
Tool number : KV38100200 (J-26233)
LDIA0111E
Tool number : KV38107900 (J-39352)
SDIA0822E
Revision: December 20092009 QX56

DLN-250
< REMOVAL AND INSTALLATION >[REAR FINAL DRIVE: R230]
REAR FINAL DRIVE
REMOVAL AND INSTALLATION
REAR FINAL DRIVE
Removal and InstallationINFOID:0000000005877761
REMOVAL
1. Remove the spare tire.
2. Drain the differential gear oil. Refer to
DLN-244, "Changing Differential Gear Oil"
.
3. Remove the rear stabilizer bar. Refer to RSU-23, "Removal and Installation"
.
4. Remove the rear propeller shaft. Refer to DLN-196, "Removal and Installation"
.
5. Remove the rear drive shafts from the rear final drive assembly and support them using suitable wire. Refer to RAX-9, "Removal
and Installation".
6. Disconnect the breather hose from the rear final drive assembly.
1. Rear final drive assembly 2. Upper stopper 3. Washer
4. Lower stopper Vehicle front
WDIA0383E
LDIA0164E
Revision: December 20092009 QX56