service INFINITI QX56 2007 Factory Service Manual

TF-160
< SERVICE INFORMATION >
TRANSFER ASSEMBLY
5. Install the sun gear assembly to the planetary carrier assembly.
6. Install the new snap ring to the planetary carrier assembly.
CAUTION:
Do not reuse snap ring.
7. Set the input bearing into the front case and install using Tool.
8. Install the new snap ring into the front case.
CAUTION:
Do not reuse snap ring.
9. Install the internal gear with its groove facing the new snap ring
into the front case. Then secure it with the new snap ring.
CAUTION:
Do not reuse snap ring.
SDIA2180E
SDIA2181E
Tool number : ST30720000 (J-25405)
SDIA2172E
SDIA2171E
WDIA0100E

TRANSFER ASSEMBLY
TF-161
< SERVICE INFORMATION >
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10. Install new front oil seal until it is seated flush with the end face
of the front case using Tool.
CAUTION:
• Do not reuse oil seal.
• Apply petroleum jelly to front oil seal lip before installing.
11. Install the planetary carrier assembly and sun gear assembly to
the front case using Tool.
12. Install the new snap ring to the sun gear assembly.
CAUTION:
Do not reuse snap ring.
13. Apply petroleum jelly to the circumference of the new input oil
seal, and install it to the front case using Tools.
CAUTION:
• Do not reuse input oil seal.
• Apply petroleum jelly to input oil seal.
14. Install the fork guide, shift fork spring, 2-4 fork, and L-H fork to
the shift rod, and secure them with new retaining pins.
CAUTION:
Do not reuse retaining pins.Tool number : KV38100500 ( — )
SDIA3383E
Tool number : ST33200000 (J-26082)
SDIA2183E
SDIA2144E
Tool number A: ST30720000 (J-25405)
B: ST33200000 (J-26082)
Dimension "A" : 4.0 - 4.6 mm (0.157 - 0.181 mm)
SDIA3191E
SDIA2142E

TF-162
< SERVICE INFORMATION >
TRANSFER ASSEMBLY
15. Install the 2-4 sleeve and L-H sleeve to each fork.
16. Install the shift cross to the front case.
17. While aligning the L-H sleeve with the planetary carrier, install
the shift rod assembly to the front case.
18. Apply liquid gasket to the entire center case mating surface of
the front case assembly as shown.
•Use Genuine Anaerobic Liquid Gasket or equivalent.
Refer to GI-45
.
CAUTION:
Remove all foreign materials such as water, oil and grease
from center case and front case mating surfaces.
19. Install the center case assembly to the front case assembly.
CAUTION:
Do not damage mainshaft end.
20. Tap the center case lightly and press-fit the front drive shaft
bearing into the front case.
SMT992C
SDIA2140E
WDIA0157E
SDIA2138E

TRANSFER ASSEMBLY
TF-163
< SERVICE INFORMATION >
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21. Tighten the front case bolts to the specified torque. Refer to
"COMPONENTS".
CAUTION:
Be sure to install harness bracket and air breather hose
clamp.
22. Install the drain plug with a new gasket.
CAUTION:
Do not reuse gasket.
23. Align the matching mark on the front drive shaft with the mark on
the companion flange, then install the companion flange.
24. Install the new companion flange self-lock nut. Tighten to the
specified torque using Tool. Refer to TF-128, "
Disassembly and
Assembly".
CAUTION:
Do not reuse self-lock nut.
25. Remove all the sealant from the check plug, switch mating sur-
face and front case.
CAUTION:
Remove old sealant adhering to mating surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mating surfaces.
26. Install the check ball and check spring to the front case. Apply
silicone gasket, to the check plug and wait detection switch and
install them to the front case. Tighten to the specified torque.
Refer to TF-128, "
Disassembly and Assembly".
•Use Genuine Silicone RTV or equivalent. Refer to GI-45
.
NOTE:
Wait detection switch harness connector is black.
SDIA2100E
SDIA2779E
Tool number : KV40104000 ( — )
WDIA0219E
WDIA0158E

TF-164
< SERVICE INFORMATION >
TRANSFER ASSEMBLY
27. Install the new oil seal in the front case using Tool.
CAUTION:
• Do not reuse oil seal.
• Apply petroleum jelly to seal lip before installing.
28. Install the shift lever to the shift cross.
29. Install the lock pin and lock pin nut. Tighten to the specified
torque. Refer to TF-128, "
Disassembly and Assembly".
Rear Case
1. Apply petroleum jelly to the circumference of the new rear oil
seal. Install the new rear oil seal so that it is flush with the case
tip face using Tool.
CAUTION:
• Do not reuse oil seal.
• Apply petroleum jelly to seal lip before installing.
2. Apply petroleum jelly to the circumference of the new dust cover.
Position the new dust cover using the identification mark as
shown.
CAUTION:
• Do not reuse dust cover.
• Position the identification mark at the position shown.
3. Install the dust cover using Tool.
4. Install the breather tube into the rear case.
5. Remove all the sealant from the rear case to center case mating
surfaces.
CAUTION:
Remove all foreign materials such as water, oil, and grease
from center case and rear case mating surfaces.Tool number : ST22360002 (J-25679-01)
SDIA2182E
Tool number : ST30720000 (J-25405)
SDIA2204E
SDIA3436E
Tool number : KV40105310 ( — )
SDIA2205E

TRANSFER ASSEMBLY
TF-165
< SERVICE INFORMATION >
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6. Apply liquid gasket to the entire rear case mating surface of the
center case.
•Use Genuine Anaerobic Liquid Gasket or equivalent.
Refer to GI-45
.
CAUTION:
Do not to allow Liquid Gasket to enter stem bleeder hole.
7. Install the rear case to the center case. Tighten the bolts to the
specified torque. Refer to TF-128, "
Disassembly and Assembly".
SDIA2206E
SDIA2092E

TF-166
< SERVICE INFORMATION >
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
General SpecificationINFOID:0000000003532572
Inspection and AdjustmentINFOID:0000000003532573
CLEARANCE BETWEEN INNER GEAR AND OUTER GEAR
Unit: mm (in)
CLUTCH
Unit: mm (in)
PINION GEAR END PLAY
Unit: mm (in)
CLEARANCE BETWEEN SHIFT FORK AND SLEEVE
Unit: mm (in)
SELECTIVE PARTS
Sub-oil Pump
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Main Oil Pump
Applied modelVK56DE
Transfer modelAT X 1 4 B
Fluid capacity (Approx.)
(US qt, lmp qt)3.0 (3-1/8, 2-5/8)
Gear ratioHigh 1.000
Low 2.596
Number of teethSun gear 57
Internal gear 91
Front drive sprocket 38
Front drive shaft 38
Item Specification
Main oil pump 0.015 - 0.035 (0.0006 - 0.0014)
Sub-oil pump 0.015 - 0.035 (0.0006 - 0.0014)
Item Limit value
Drive plate1.4 (0.055)
Item Standard
Pinion gear end play 0.1 - 0.7 (0.004 - 0.028)
Item Standard
Shift fork and sleeve Less than 0.36 (0.0142)
Gear thicknessPart number*
Inner gear Outer gear
9.27 - 9.28 (0.3650 - 0.3654) 31346 0W462 31347 0W462
9.28 - 9.29 (0.3654 - 0.3657) 31346 0W461 31347 0W461
9.29 - 9.30 (0.3657 - 0.3661) 31346 0W460 31347 0W460

SERVICE DATA AND SPECIFICATIONS (SDS)
TF-167
< SERVICE INFORMATION >
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Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Control Valve
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Control Valve Spring
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Return Spring
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.Gear thicknessPart number*
Inner gear Outer gear
8.27 - 8.28 (0.3256 - 0.3260) 31346 7S112 31347 7S112
8.28 - 8.29 (0.3260 - 0.3264) 31346 7S111 31347 7S111
8.29 - 8.30 (0.3264 - 0.3268) 31346 7S110 31347 7S110
Mounting position (Part name) Part number* Outer dia. Overall length
L1 (2-4 shift valve) 31772 21X00 8.0 (0.315) 38.5 (1.516)
L2 (Clutch valve) 31772 80X11 10.0 (0.394) 40.0 (1.575)
L4 (Pilot valve) 31772 80X11 10.0 (0.394) 40.0 (1.575)
L5 (Regulator valve) 31741 0W410 12.0 (0.472) 68.0 (2.677)
Mounting position (Part name) Part number* Free length Outer dia. Overall length
L1 (2-4 shift valve spring) 31742 2W500 31.85 (1.2539) 7.0 (0.276) 0.6 (0.024)
L2 (Clutch valve spring) 31742 2W505 40.6 (1.598) 8.9 (0.350) 0.7 (0.028)
L4 (Pilot valve spring) 31742 0W410 28.1 (1.106) 9.0 (0.354) 1.2 (0.047)
L5 (Regulator valve spring) 31742 2W515 39.7 (1.563) 11.0 (0.433) 1.3 (0.051)
Stamped mark Part number* Free length
1 31521 7S111 42.7 (1.168)
2 31521 7S112 43.1 (1.697)
3 31521 7S113 43.6 (1.717)
4 31521 7S114 44.0 (1.731)

WT-1
SUSPENSION
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SECTION WT
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PCONTENTS
ROAD WHEELS & TIRES
SERVICE INFORMATION ............................2
PRECAUTIONS ...................................................2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................
2
PREPARATION ...................................................3
Special Service Tool .................................................3
Commercial Service Tool ..........................................3
NOISE, VIBRATION AND HARSHNESS
(NVH) TROUBLESHOOTING .............................
4
NVH Troubleshooting Chart ......................................4
WHEEL ................................................................5
Inspection ..................................................................5
WHEEL AND TIRE ASSEMBLY .........................6
Balancing Wheels .....................................................6
Rotation .....................................................................7
LOW TIRE PRESSURE WARNING SYSTEM .....8
System Component ...................................................8
System Description ...................................................8
CAN COMMUNICATION ....................................10
System Description .................................................10
TROUBLE DIAGNOSIS .....................................11
Wiring Diagram- T/WARN - .....................................11
Terminal and Reference Value (BCM) ....................12
ID Registration Procedure .......................................12
Transmitter Wake Up Operation .............................14
CONSULT-II Function (BCM) ..................................15
Self-Diagnosis .........................................................15
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
17
Preliminary Check ...................................................18
Flash Code/Symptom Chart ....................................18
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS .................................................
20
Data from Transmitter Not Being Received .............20
Transmitter Malfunction ...........................................20
Transmitter Pressure Malfunction ............................21
Vehicle Speed Signal ..............................................21
Ignition Signal ..........................................................22
TROUBLE DIAGNOSIS FOR SYMPTOMS ......23
Low Tire Pressure Warning Lamp Does Not Come
On When Ignition Switch Is Turned On ...................
23
Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On ...................................
23
Low Tire Pressure Warning Lamp Flashes When
Ignition Switch Is Turned On ...................................
24
Hazard Warning Lamps Flash When Ignition
Switch Is Turned On ................................................
25
"TIRE PRESSURE" Information in Display Unit
Does Not Exist .........................................................
25
ID Registration Cannot Be Completed ....................25
REMOVAL AND INSTALLATION .....................26
Transmitter (Pressure Sensor) ................................26
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
28
Road Wheel .............................................................28
Tire ..........................................................................28

WT-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003532685
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 severity 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 SRS and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inoperative, 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 incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SRS section.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.