2006 INFINITI QX56 service

TF-184
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
Main Oil Pump
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 thickness
Part number*
Inner gear Outer gear
8.27 - 8.28 (0.3256 - 0.3260) 31346 7S11231347 7S112
8.28 - 8.29 (0.3260 - 0.3264) 31346 7S11131347 7S111
8.29 - 8.30 (0.3264 - 0.3268) 31346 7S11031347 7S110
Mounting position (Part name) Part number*Outer dia.Overall length
L1 (2-4 shift valve) 31772 21X008.0 (0.315)38.5 (1.516)
L2 (Clutch valve) 31772 80X1110.0 (0.394)40.0 (1.575)
L4 (Pilot valve) 31772 80X1110.0 (0.394)40.0 (1.575)
L5 (Regulator valve) 31741 0W41012.0 (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 markPart number*Free length
1 31521 7S11142.7 (1.168)
2 31521 7S11243.1 (1.697)
3 31521 7S11343.6 (1.717)
4 31521 7S11444.0 (1.731)

WT-1
ROAD WHEELS & TIRES
E SUSPENSION
CONTENTS
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SECTION
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WT
Revision: November 2009 2006 QX56
PRECAUTIONS .....................................................
..... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 2
PREPARATION ...................................................... ..... 3
Special Service Tool ............................................ ..... 3
Commercial Service Tools ................................... ..... 3
NOISE, VIBRATION, AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... ..... 4
NVH Troubleshooting Chart ................................ ..... 4
WHEEL .................................................................. ..... 5
Inspection ............................................................ ..... 5
WHEEL AND TIRE ASSEMBLY ............................ ..... 6
Balancing Wheels ............................................... ..... 6
REMOVAL ........................................................ ..... 6
WHEEL BALANCE ADJUSTMENT ................. ..... 6
Rotation ............................................................... ..... 7
LOW TIRE PRESSURE WARNING SYSTEM ....... ..... 8
System Components ........................................... ..... 8
System Description ............................................. ..... 8
TRANSMITTER ................................................ ..... 8
REMOTE KEYLESS ENTRY RECEIVER ........ ..... 8
BCM (BODY CONTROL MODULE) ................. ..... 9
WARNING LAMP AND BUZZER ..................... ..... 9
COMBINATION METER .................................. ..... 9
DISPLAY UNIT ................................................. ..... 9
CAN COMMUNICATION ....................................... ... 10
System Description ............................................. ... 10
TROUBLE DIAGNOSES ....................................... ....11
Wiring Diagram – T/WARN – .............................. .... 11
Terminals and Reference Values for BCM .......... ... 13
ID Registration Procedure ................................... ... 14
ID REGISTRATION WITH TRANSMITTER
ACTIVATION TOOL ......................................... ... 14
ID REGISTRATION WITHOUT TRANSMITTER
ACTIVATION TOOL ......................................... ... 16
Transmitter Wake Up Operation .......................... ... 18
WITH TRANSMITTER ACTIVATION TOOL ..... ... 18
CONSULT-II Function (BCM) .............................. ... 19
Self-Diagnosis ..................................................... ... 20DESCRIPTION .................................................
... 20
FUNCTION ....................................................... ... 20
CONSULT-II ...................................................... ... 20
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ................................................... ... 22
INTRODUCTION .............................................. ... 22
WORK FLOW ................................................... ... 22
Preliminary Check ............................................... ... 23
Malfunction Code/Symptom Chart ....................... ... 24
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ..................................................................... ... 26
Inspection 1: Transmitter or Control Unit (BCM) .. ... 26
MALFUNCTION CODE NO. 21, 22, 23 OR 24
(DTC C1708, C1709, C1710 OR C1711) ......... ... 26
Inspection 2: Transmitter - 1 ................................ ... 26
MALFUNCTION CODE NO. 31, 32, 33, 34, 41,
42, 43, 44, 45, 46, 47 OR 48 ............................ ... 26
Inspection 3: Transmitter - 2 ................................ ... 27
MALFUNCTION CODE NO. 35, 36, 37 OR 38 ... 27
Inspection 4: Vehicle Speed Signal ..................... ... 28
MALFUNCTION CODE NO. 52 (DTC C1729) . ... 28
TROUBLE DIAGNOSIS FOR SYMPTOMS ........... ... 29
Inspection 1: Warning Lamp Does Not Come On
When Ignition Switch Is Turned On ..................... ... 29
Inspection 2: Low Tire Pressure Warning Lamp
Stays On When Ignition Switch Is Turned On ...... ... 30
Inspection 3: Warning Lamp Flashes When Ignition
Switch Is Turned On ............................................ ... 32
Inspection 4: Hazard Warning Lamp Flashes When
Ignition Switch Is Turned On ............................... ... 33
Inspection 5: “TIRE PRESSURE” Information In
Display Unit Does Not Exist ................................. ... 34
Inspection 6: ID Registration Cannot Be Completed ... 35
REMOVAL AND INSTALLATION .......................... ... 36
Transmitter (Pressure Sensor) ............................ ... 36
REMOVAL ........................................................ ... 36
INSTALLATION ................................................ ... 36
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 38
Road Wheel ............................................................ 38
Tire ...................................................................... ... 38

WT-2
PRECAUTIONS
Revision: November 20092006 QX56
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EES0025O
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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal 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
harness connectors.

PREPARATIONWT-3
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WT
Revision: November 2009 2006 QX56
PREPARATIONPFP:00002
Special Service ToolEES001HW
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsEES001HX
Tool number
(Kent-Moore No.)
Tool nameDescription
—
(J-45295)
Transmitter activation tool ID registration
LEIA0035E
Tool name
Description
Power tool Removing wheel nuts
PBIC0190E

WHEEL AND TIRE ASSEMBLYWT-7
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WT
Revision: November 2009 2006 QX56
c. If calculated balance weight value exceeds 50 g (1.76 oz), install
two balance weight sheets in line with each other as shown.
CAUTION:
Do not install one balance weight sheet on top of another.
3. Start wheel balancer again.
4. Install drive-in balance weight on inner side of road wheel in the wheel balancer indication position (angle).
CAUTION:
Do not install more than two balance weights.
5. Start wheel balancer. Make sure that inner and outer residual imbalance values are 5 g (0.18 oz) each or below.

If either residual imbalance value exceeds 5 g (0.18 oz), repeat installation procedures.
Wheel balance (Maximum allowable imbalance):
RotationEES001Q1
NOTE:
Follow the maintenance schedule for tire rotation service intervals. Refer to MA-7, "
PERIODIC MAINTE-
NANCE" .
1. Rotate the tires on each side from front to back as shown. Do not include the spare tire when rotating the tires.
CAUTION:
When installing wheels, tighten them diagonally by dividing
the work two to three times in order to prevent the wheels
from developing any distortion.
2. Adjust the tire pressure to specification. Refer to WT-38, "
Tire" .
3. After the tire rotation, retighten the wheel nuts after the vehicle has been driven for 1,000 km (600 miles), and also after every
wheel and tire have been installed such as after repairing a flat
tire.
Maximum allowable imbalance Dynamic (At rim flange)
5 g (0.18 oz) (one side)
Static 10 g (0.35 oz)
SMA056D
Wheel nut torque : 133 N·m (14 kg-m, 98 ft-lb)
SMA829C

WT-38
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Road WheelEES001IO
TireEES001IP
Unit: kPa (kg/cm2 , psi)
Wheel type
Aluminum
Maximum radial runout limit Lateral mm (in)
0.3 (0.012) or less
Radial mm (in) 0.3 (0.012) or less
Maximum residual imbalance Dynamic (at rim flange)
Less than 5 g (0.18 oz) (per side)
Static (at rim flange) Less than 10 g (0.35 oz)
Tire size Air pressure
Conventional tire Spare tire
Full size spare tire —240 (2.4, 35)
P265/70R18 240 (2.4, 35)—

PRECAUTIONWW-3
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Revision: November 2009 2006 QX56
PRECAUTION PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EKS00BDQ
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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal 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
harness connectors.