maintenance INFINITI QX56 2009 Factory Owner's Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2009, Model line: QX56, Model: INFINITI QX56 2009Pages: 4171, PDF Size: 84.65 MB
Page 758 of 4171

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< ON-VEHICLE MAINTENANCE >
RADIATOR
RADIATOR
Checking RadiatorINFOID:0000000003771286
Check radiator for mud or clogging. If necessary, clean radiator as follows.
CAUTION:
• Be careful not to bend or damage the radiator fins.
• When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radia-tor shroud and horns. Then tape the harness and electrical connectors to prevent water from enter-
ing.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surfaces.
3. Stop washing when dirt and debris no longer flow out from the radiator.
4. Blow air into the back side of radiator core vertically downward. • Use compressed air lower than 490 kPa (5 kg/cm
2, 71 psi) and keep distance more than 30 cm (11.8 in).
5. Blow air again into all the radiator core surfaces until no water sprays out.
Revision: December 20092009 QX56
Page 809 of 4171

PRECAUTIONSDEF-41
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005855808
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Handling for Adhesive and PrimerINFOID:0000000003776363
• Do not use an adhesive which is past its usable date. Shelf life of this product is limited to six months afterthe date of manufacture. Carefully adhere to the ex piration or manufacture date printed on the box.
• Keep primers and adhesive in a cool, dry place. I deally, they should be stored in a refrigerator.
• Open the seal of the primer and adhesive just before application. Discard the remainder.
• Before application, be sure to shake the primer container to stir the contents. If any floating material is found,
do not use it.
• If any primer or adhesive contacts the skin, wipe it off with gasoline or equivalent and wash the skin with
soap.
• When using primer and adhesive, always observe the precautions in the instruction manual.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005855987
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
Revision: December 20092009 QX56
Page 1037 of 4171
![INFINITI QX56 2009 Factory Owners Manual PRECAUTIONSDLK-225
< PRECAUTION > [WITH INTELLIGENT KEY SYSTEM]
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
P INFINITI QX56 2009 Factory Owners Manual PRECAUTIONSDLK-225
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PRECAUTIONSDLK-225
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PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005877749
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
• Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
INFOID:0000000005877750
NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
• Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56
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NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ........................ ..
119
NVH Troubleshooting Chart ................................ ..119
PRECAUTION ............................................120
PRECAUTIONS .............................................. ..120
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
120
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
120
Precaution for Transfer Assembly and Transfer
Control Unit Replacement .....................................
121
Precaution .............................................................121
Service Notice .......................................................122
PREPARATION .........................................123
PREPARATION .............................................. ..123
Special Service Tool ........................................... ..123
Commercial Service Tool ......................................125
ON-VEHICLE MAINTENANCE ..................127
TRANSFER OIL FILTER ................................ ..127
Removal and Installation ..................................... ..127
TRANSFER FLUID ...........................................129
Replacement ....................................................... ..129
Inspection ..............................................................129
ON-VEHICLE REPAIR ...............................130
TRANSFER CONTROL UNIT ........................ ..130
Removal and Installation ..................................... ..130
FRONT OIL SEAL ............................................131
Removal and Installation ..................................... ..131
REAR OIL SEAL ..............................................133
Removal and Installation ..................................... ..133
SIDE OIL SEAL ................................................135
Removal and Installation ..................................... ..135
TRANSFER CONTROL DEVICE .....................136
Removal and Installation ..................................... ..136
AIR BREATHER HOSE ....................................137
Removal and Installation ..................................... ..137
TRANSFER MOTOR ........................................140
Removal and Installation ..................................... ..140
REMOVAL AND INSTALLATION .............141
TRANSFER ASSEMBLY ............................... ..141
Removal and Installation ..................................... ..141
DISASSEMBLY AND ASSEMBLY ............142
TRANSFER ASSEMBLY ............................... ..142
Disassembly and Assembly ................................. ..142
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... ...........................................
179
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................
179
General Specification .......................................... ..179
Inspection and Adjustment ....................................179
PROPELLER SHAFT: 2F1310
PRECAUTION ............... .............................
181
PRECAUTIONS ...............................................181
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
181
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
181
PREPARATION .........................................183
PREPARATION ...............................................183
Commercial Service Tool .................................... ..183
SYMPTOM DIAGNOSIS ............................184
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING .........................
184
NVH Troubleshooting Chart ................................ ..184
ON-VEHICLE REPAIR ...............................185
PROPELLER SHAFT ......................................185
On-Vehicle Service .............................................. ..185
REMOVAL AND INSTALLATION .............186
PROPELLER SHAFT ......................................186
Removal and Installation ..................................... ..186
DISASSEMBLY AND ASSEMBLY ............188
PROPELLER SHAFT ......................................188
Disassembly and Assembly ................................. ..188
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... ...........................................
190
SERVICE DATA AND SPECIFICATIONS
(SDS) ...............................................................
190
General Specification .......................................... ..190
Snap Ring ..............................................................190
PROPELLER SHAFT: 2S1410
PRECAUTION ............... .............................
191
PRECAUTIONS ...............................................191
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
191
Revision: December 20092009 QX56
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DLN-4
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
191
PREPARATION ..........................................193
PREPARATION .............................................. .193
Commercial Service Tool .................................... ..193
SYMPTOM DIAGNOSIS ............................194
NOISE, VIBRATION, AND HARSHNESS
(NVH) TROUBLESHOOTING ......................... .
194
NVH Troubleshooting Chart ................................ ..194
ON-VEHICLE REPAIR ............................. ..195
PROPELLER SHAFT ..................................... .195
On-Vehicle Service .............................................. ..195
REMOVAL AND INSTALLATION ..............196
PROPELLER SHAFT ..................................... .196
Removal and Installation ..................................... ..196
DISASSEMBLY AND ASSEMBLY ............199
PROPELLER SHAFT ..................................... .199
Disassembly and Assembly ................................. ..199
SERVICE DATA AND SPECIFICATIONS
(SDS) .............. ............................................
201
SERVICE DATA AND SPECIFICATIONS
(SDS) ............................................................... .
201
General Specification .......................................... ..201
Snap Ring ..............................................................201
FRONT FINAL DRIVE: M205
PRECAUTION ....... ....................... ..............
203
PRECAUTIONS .............................................. .203
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ..
203
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
203
Precaution for Servicing Front Final Drive .............204
PREPARATION ..........................................205
PREPARATION .............................................. .205
Special Service Tool ............................................ ..205
Commercial Service Tool ......................................207
SYMPTOM DIAGNOSIS ............................208
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ......................... .
208
NVH Troubleshooting Chart ................................ ..208
ON-VEHICLE MAINTENANCE ..................209
DIFFERENTIAL GEAR OIL ............................ ..209
Changing Differential Gear Oil ............................. .209
Checking Differential Gear Oil ..............................209
ON-VEHICLE REPAIR ..............................210
SIDE OIL SEAL .............................................. ..210
Removal and Installation ...................................... .210
FRONT OIL SEAL ............................................211
Removal and Installation ...................................... .211
CARRIER COVER .......................................... ..214
Removal and Installation ...................................... .214
REMOVAL AND INSTALLATION .............215
FRONT FINAL DRIVE .................................... ..215
Removal and Installation ...................................... .215
DISASSEMBLY AND ASSEMBLY ...........217
FRONT FINAL DRIVE .................................... ..217
Disassembly and Assembly ................................. .217
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... ..........................................
234
SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ..
234
General Specification ........................................... .234
Inspection and Adjustment ....................................234
REAR FINAL DRIVE: R230
PRECAUTION ............... ............................
236
PRECAUTIONS .............................................. ..236
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. .
236
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ................................
236
Precaution for Servicing Rear Final Drive .............237
PREPARATION .........................................238
PREPARATION .............................................. ..238
Special Service Tool ............................................ .238
Commercial Service Tool ......................................240
SYMPTOM DIAGNOSIS ...........................242
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING ......................... ..
242
NVH Troubleshooting Chart ................................. .242
DESCRIPTION ..................................................243
Cross-Sectional View ........................................... .243
ON-VEHICLE MAINTENANCE .................244
DIFFERENTIAL GEAR OIL ............................ ..244
Revision: December 20092009 QX56
Page 1176 of 4171
![INFINITI QX56 2009 Factory Owners Manual
DLN-120
< PRECAUTION >[ATX14B]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005874977
The Supplemental INFINITI QX56 2009 Factory Owners Manual
DLN-120
< PRECAUTION >[ATX14B]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005874977
The Supplemental](/img/42/57031/w960_57031-1175.png)
DLN-120
< PRECAUTION >[ATX14B]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint S
ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005874977
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005874978
NOTE:
This Procedure is applied only to models with Intelli gent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56
Page 1183 of 4171
![INFINITI QX56 2009 Factory Owners Manual
TRANSFER OIL FILTERDLN-127
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Removal and InstallationINFOID:0000000004193522
REMOVAL
1. R INFINITI QX56 2009 Factory Owners Manual
TRANSFER OIL FILTERDLN-127
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TRANSFER OIL FILTER
Removal and InstallationINFOID:0000000004193522
REMOVAL
1. R](/img/42/57031/w960_57031-1182.png)
TRANSFER OIL FILTERDLN-127
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TRANSFER OIL FILTER
Removal and InstallationINFOID:0000000004193522
REMOVAL
1. Remove the oil filter bolts and oil filter. CAUTION:
Do not damage center case or oil filter.
Loosen bolts and detach oil filter evenly.
2. Remove the O-rings (1) from the oil filter (2).
3. Remove the oil filter stud from the oil filter.
4. Remove the O-ring from the oil filter stud.
INSTALLATION
1. Apply ATF to the new O-ring, and install it on the oil filter stud. CAUTION:
Do not reuse O-ring.
2. Install the oil filter stud to the oil filter.
SMT875C
WDIA0285E
SDIA3180E
SDIA3180E
Revision: December 20092009 QX56
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![INFINITI QX56 2009 Factory Owners Manual
DLN-128
< ON-VEHICLE MAINTENANCE >[ATX14B]
TRANSFER OIL FILTER
3. Apply ATF to the two new O-rings (1), and install them on the oil
filter (2).
CAUTION:
Do not reuse O-rings.
4. Install the oil filte INFINITI QX56 2009 Factory Owners Manual
DLN-128
< ON-VEHICLE MAINTENANCE >[ATX14B]
TRANSFER OIL FILTER
3. Apply ATF to the two new O-rings (1), and install them on the oil
filter (2).
CAUTION:
Do not reuse O-rings.
4. Install the oil filte](/img/42/57031/w960_57031-1183.png)
DLN-128
< ON-VEHICLE MAINTENANCE >[ATX14B]
TRANSFER OIL FILTER
3. Apply ATF to the two new O-rings (1), and install them on the oil
filter (2).
CAUTION:
Do not reuse O-rings.
4. Install the oil filter to the transfer assembly. Tighten the bolts to the specified torque. Refer to DLN-127, "Removal and Installa-
tion".
CAUTION:
Do not damage oil filter.
Attach oil filter an d tighten bolts evenly.
5. Check the transfer fluid. Refer to DLN-129, "Inspection"
.
6. Start the engine for one minute. Then stop the engine and recheck the transfer fluid. Refer to DLN-129, "Inspection"
.
WDIA0285E
SDIA2136E
Revision: December 20092009 QX56
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TRANSFER FLUIDDLN-129
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ReplacementINFOID:0000000004193523
CAUTION:
If using the vehicle for towing, the transfer fl INFINITI QX56 2009 Factory Owners Manual
TRANSFER FLUIDDLN-129
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ReplacementINFOID:0000000004193523
CAUTION:
If using the vehicle for towing, the transfer fl](/img/42/57031/w960_57031-1184.png)
TRANSFER FLUIDDLN-129
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ReplacementINFOID:0000000004193523
CAUTION:
If using the vehicle for towing, the transfer fluid must be replaced as specified. Refer to MA-8, "Intro-
duction of Periodic Maintenance".
DRAINING
1. Stop engine.
2. Remove the drain plug and gasket and drain the fluid.
3. Install the drain plug with a new gasket to the transfer. Tighten to
the specified torque. Refer to DLN-142, "Disassembly and
Assembly".
CAUTION:
Do not reuse gasket.
FILLING
1. Remove the filler plug and gasket.
2. Fill the transfer with new fluid until the fluid level reaches the specified limit near the filler plug hole.
CAUTION:
Carefully fill fluid. (Fil l up for approx. 3 minutes.)
3. Leave the vehicle for 3 minutes, and check fluid level again.
4. Install the filler plug with a new gasket to the transfer. Tighten to the specified torque. Refer to DLN-142, "Disassembly and
Assembly".
CAUTION:
Do not reuse gasket.
InspectionINFOID:0000000004193524
CAUTION:
If using the vehicle for towing, the transfer fluid must be replaced as specified. Refer to MA-8, "Intro-
duction of Periodic Maintenance".
FLUID LEAKAGE AND FLUID LEVEL
1. Make sure that fluid is not leaking from the transfer assembly or around it.
2. Check fluid level from the filler plug hole as shown. CAUTION:
Do not start engine while checking fluid level.
3. Install the filler plug with a new gasket to the transfer. Tighten to the specified torque. Refer to DLN-142, "Disassembly and
Assembly".
CAUTION:
Do not reuse gasket.
SDIA3208E
Fluid grade and capacity : Refer to MA-12, "Fluids and
Lubricants".
SDIA3209E
SDIA3209E
Revision: December 20092009 QX56
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PRECAUTIONSDLN-181
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Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-T INFINITI QX56 2009 Factory Owners Manual
PRECAUTIONSDLN-181
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-T](/img/42/57031/w960_57031-1236.png)
PRECAUTIONSDLN-181
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005875025
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
To avoid rendering the SRS inoper ative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintentional act ivation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.
Do not use electrical test equipm ent on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
When working near the Airbag Diagnosis Sensor Un it or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or el ectric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wh eel Rotation After Battery Disconnect
INFOID:0000000005875026
NOTE:
This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
Remove and install all control units after disconnecti ng both battery cables with the ignition knob in the
″ LOCK ″ position.
Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS , an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56