2006 INFINITI QX56 fuel

PRECAUTIONSGI-7
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Revision: November 2009 2006 QX56

After installing leaf spring clamps, apply force to them in the
direction of the arrow, tightening rubber hose equally all around.
Precautions for Engine OilsEAS001FC
Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS

Avoid prolonged and repeated contact with oils, particularly used engine oils.

Wear protective clothing, including impervious gloves where practicable.

Do not put oily rags in pockets.

Avoid contaminating clothes, particularly underpants, with oil.

Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu-
larly.

First aid treatment should be obtained immediately for open cuts and wounds.

Use barrier creams, applying them before each work period, to help the removal of oil from the skin.

Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Prepa-
rations containing lanolin replace the natural skin oils which have been removed.

Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.

If skin disorders develop, obtain medical advice without delay.

Where practical, degrease components prior to handling.

Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.
Precautions for Air ConditioningEAS001FD
Use an approved refrigerant recovery unit any time the air conditioning system must be discharged. Refer to
ATC-171, "
HFC-134a (R-134a) Service Procedure" for specific instructions.
SMA022D

GI-42
LIFTING POINT
Revision: November 20092006 QX56
2-Pole LiftEAS001FX
WARNING:

When lifting the vehicle, open the lift arms as wide as possible and ensure that the front and rear
of the vehicle are well balanced.

When setting the lift arm, do not allow the arm to contact the brake tubes, brake cable, or fuel
lines.
WAIA0029E

TERMINOLOGYGI-51
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Revision: November 2009 2006 QX56
TERMINOLOGYPFP:00011
SAE J1930 Terminology List EAS001G6
All emission related terms used in this publication in accordance with SAE J1930 are listed. Accordingly, new
terms, new acronyms/abbreviations and old terms are listed in the following chart.
NEW TERMNEW ACRONYM /
ABBREVIATION OLD TERM
Air cleaner ACLAir cleaner
Barometric pressure BARO***
Barometric pressure sensor-BCDD BAROS-BCDD BCDD
Camshaft position CMP***
Camshaft position sensor CMPSCrank angle sensor
Canister ***Canister
Carburetor CARBCarburetor
Charge air cooler CACIntercooler
Closed loop CLClosed loop
Closed throttle position switch CTP switchIdle switch
Clutch pedal position switch CPP switchClutch switch
Continuous fuel injection system CFI system***
Continuous trap oxidizer system CTOX system***
Crankshaft position CKP***
Crankshaft position sensor CKPS***
Data link connector DLC***
Data link connector for CONSULT-II DLC for CONSULT-II Diagnostic connector for CONSULT-II
Diagnostic test mode DTMDiagnostic mode
Diagnostic test mode selector DTM selectorDiagnostic mode selector
Diagnostic test mode I DTM IMode I
Diagnostic test mode II DTM IIMode II
Diagnostic trouble code DTCMalfunction code
Direct fuel injection system DFI system***
Distributor ignition system DI systemIgnition timing control
Early fuel evaporation-mixture heater EFE-mixture heater Mixture heater
Early fuel evaporation system EFE systemMixture heater control
Electrically erasable programmable read
only memory EEPROM
***
Electronic ignition system EI systemIgnition timing control
Engine control EC***
Engine control module ECMECCS control unit
Engine coolant temperature ECTEngine temperature
Engine coolant temperature sensor ECTS Engine temperature sensor
Engine modification EM***
Engine speed RPMEngine speed
Erasable programmable read only memory EPROM ***
Evaporative emission canister EVAP canisterCanister
Evaporative emission system EVAP systemCanister control solenoid valve
Exhaust gas recirculation valve EGR valveEGR valve

GI-52
TERMINOLOGY
Revision: November 20092006 QX56
Exhaust gas recirculation control-BPT
valveEGRC-BPT valve
BPT valve
Exhaust gas recirculation control-solenoid
valve EGRC-solenoid valve
EGR control solenoid valve
Exhaust gas recirculation temperature sen-
sor EGRT sensor Exhaust gas temperature sensor
EGR temperature sensor
Flash electrically erasable programmable
read only memory FEEPROM
***
Flash erasable programmable read only
memory FEPROM
***
Flexible fuel sensor FFS ***
Flexible fuel system FF system ***
Fuel pressure regulator *** Pressure regulator
Fuel pressure regulator control solenoid
valve ***
PRVR control solenoid valve
Fuel trim FT ***
Heated Oxygen sensor HO2S Exhaust gas sensor
Idle air control system IAC system Idle speed control
Idle air control valve-air regulator IACV-air regulator Air regulator
Idle air control valve-auxiliary air control
valve IACV-AAC valve
Auxiliary air control (AAC) valve
Idle air control valve-FICD solenoid valve IACV-FICD solenoid valve FICD solenoid valve
Idle air control valve-idle up control sole-
noid valve IACV-idle up control solenoid valve Idle up control solenoid valve
Idle speed control-FI pot ISC-FI pot FI pot
Idle speed control system ISC system ***
Ignition control IC ***
Ignition control module ICM ***
Indirect fuel injection system IFI system ***
Intake air IA Air
Intake air temperature sensor IAT sensor Air temperature sensor
Knock *** Detonation
Knock sensor KS Detonation sensor
Malfunction indicator lamp MIL Check engine light
Manifold absolute pressure MAP ***
Manifold absolute pressure sensor MAPS ***
Manifold differential pressure MDP ***
Manifold differential pressure sensor MDPS ***
Manifold surface temperature MST ***
Manifold surface temperature sensor MSTS ***
Manifold vacuum zone MVZ ***
Manifold vacuum zone sensor MVZS ***
Mass air flow sensor MAFS Air flow meter
Mixture control solenoid valve MC solenoid valve Air-fuel ratio control solenoid valve
Multiport fuel injection System MFI system Fuel injection control
NEW TERM
NEW ACRONYM /
ABBREVIATION OLD TERM

TERMINOLOGYGI-53
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Revision: November 2009 2006 QX56
Nonvolatile random access memory NVRAM***
On board diagnostic system OBD systemSelf-diagnosis
Open loop OLOpen loop
Oxidation catalyst OCCatalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2SExhaust gas sensor
Park position switch ***Park switch
Park/neutral position switch PNP switchPark/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system***
Positive crankcase ventilation PCVPositive crankcase ventilation
Positive crankcase ventilation valve PCV valve PCV valve
Powertrain control module PCM***
Programmable read only memory PROM***
Pulsed secondary air injection control sole-
noid valve PAIRC solenoid valve
AIV control solenoid valve
Pulsed secondary air injection system PAIR system Air induction valve (AIV) control
Pulsed secondary air injection valve PAIR valve Air induction valve
Random access memory RAM***
Read only memory ROM***
Scan tool ST***
Secondary air injection pump AIR pump***
Secondary air injection system AIR system***
Sequential multiport fuel injection system SFI system Sequential fuel injection
Service reminder indicator SRI***
Simultaneous multiport fuel injection sys-
tem ***
Simultaneous fuel injection
Smoke puff limiter system SPL system***
Supercharger SC***
Supercharger bypass SCB***
System readiness test SRT***
Thermal vacuum valve TVVThermal vacuum valve
Three way catalyst TWCCatalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OCCatalyst
Three way + oxidation catalytic converter
system TWC + OC system
***
Throttle body TBThrottle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TPThrottle position
Throttle position sensor TPSThrottle sensor
Throttle position switch TP switchThrottle switch
Torque converter clutch solenoid valve TCC solenoid valve Lock-up cancel solenoid
Lock-up solenoid
NEW TERM
NEW ACRONYM /
ABBREVIATION OLD TERM

IDX-2
ALPHABETICAL INDEX
Numerics
2-4WD shift solenoid valve ..... TF-94
, TF-154, TF-167
4WD - Wiring diagram ....................................... TF-24
4WD shift switch ................................................ TF-66
4WD solenoid valve ................ TF-90, TF-154, TF-167
4WD system description .................................... TF-15
4WD system diagram ........................................ TF-19
A
A/C air flow ...................................................... ATC-30
A/C compressor clutch removal and installation .. ATC-
176
A/C compressor mounting ............................. ATC-175
A/C compressor precaution ............................. ATC-11
A/C compressor special service tool ................ ATC-14
A/C control operation (auto A/C) ...................... ATC-27
A/C diagnostic work flow (auto A/C) .............. ATC-130
A/C evaporator ............................................... ATC-184
A/C HFC134a (R134a) system identification ..... ATC-6
A/C HFC134a (R134a) system precaution ........ ATC-5
A/C HFC134a (R134a) system service procedure ATC-
171
A/C HFC134a (R134a) system service tools ... ATC-14
A/C HFC134a system service equipment precaution ...
ATC-11
A/C lubricant (R134a) ...................................... ATC-22
A/C lubrication oil ............................................. ATC-22
A/C operational check ....................... ATC-58, ATC-60
A/C self-diagnoses (auto A/C) ........ ATC-56, ATC-130
A/C service data specification ........................ ATC-191
A/C trouble diagnoses (auto A/C) .................... ATC-34
A/C, A - Wiring diagram ................................... ATC-44
A/T fluid checking ...................... AT-12, AT-51, MA-22
A/T fluid cooler cleaning .................................... AT-14
A/T fluid replacement ............................. AT-12, MA-24
A/T fluid temperature sensor ........................... AT-127
A/T IND - Wiring diagram .................................... DI-41
A/T indicator ........................................................ DI-41
A/T shift lock system ........................................ AT-221
A/T trouble diagnoses ........................................ AT-42
ABS - Wiring diagram ..................................... BRC-16
ABS (anti-lock brake system) ........................... BRC-7
Accelerator control system ............................... ACC-3
Accelerator pedal position (APP) sensor . EC-547, EC-
553, EC-567
Accelerator pedal released position learning ..... EC-78
AF1B1-Wiring diagram EC-216, EC-225, EC-234, EC-
244, EC-577
AF1B2-Wiring diagram EC-218, EC-227, EC-236, EC-
246, EC-579
AF1HB1-Wiring diagram .................................. EC-157
AF1HB2-Wiring diagram .................................. EC-159
Aiming adjustment .................................. LT-29, LT-78
Air bag .............................................................. SRS-3
Air bag precautions .............................................. AV-4
Air cleaner and air duct ..................................... EM-15
Air cleaner filter replacement ................ EM-16, MA-16
Air conditioner cut control ................................. EC-28
Air flow meter - See Mass air flow sensor EC-171, EC-
180
Air fuel ratio sensor 1 .. EC-213, EC-223, EC-232, EC-
241, EC-575
Air fuel ratio sensor 1 heater ........................... EC-156
Air mix. door motor .......................................... ATC-70
Ambient sensor ............................. ATC-134, ATC-145
Angular tightening application ............................. EM-4
Antenna .............................................................. AV-60
APPS1 - Wiring diagram ................................. EC-549
APPS2 - Wiring diagram ................................. EC-555
APPS3 - Wiring diagram ................................. EC-569
ASC/BS - Wiring diagram ............................... EC-513
ASC/SW - Wiring diagram .............................. EC-496
ASCBOF - Wiring diagram .............................. EC-587
ASCD ................................................................ EC-29
ASCD (automatic speed control device) ........... ACS-3
ASCD brake switch ........................... EC-511, EC-586
ASCD indicator lamp ....................................... EC-593
ASCD steering switch ..................................... EC-494
ASCIND - Wiring diagram ............................... EC-594
ATP switch ............................ TF-107, TF-110, TF-115
Audio .................................................................... AV-6
AUDIO - Wiring diagram .................................... AV-11
AUT/DP - Wiring diagram .................................. SE-16
Auto air conditioner - Wiring diagram .............. ATC-44
Auto anti-dazzling inside mirror ........... GW-72, GW-73
Autolamp ............................................................ LT-47
Automatic amplifier ......................................... ATC-61
Automatic drive positioner .................................. SE-11
Automatic transmission number .......................... GI-49
B
Back door ........................................................... BL-99
Back door trim ..................................................... EI-32
Back sonar .......................................................... DI-60
BACK/L - Wiring diagram ................................. LT-109
Back-up lamp ................................................... LT-109
Ball joint (front) ................................................ FSU-15
Basic inspection ................................................ EC-71
Battery ................................................................. SC-4
Battery/Starting/Charging System Tester SC-6, SC-12,
SC-19
BCM (Body control module) ................ BCS-3, AV-109
Block heater ...................................................... EM-78
Blower motor ................................... ATC-93, ATC-149
Body alignment ................................................ BL-172
Body component parts ..................................... BL-161
Body construction ............................................ BL-171
Body exterior paint color .................................. BL-160
Body mounting ................................................. BL-159
Body repair ....................................................... BL-160
Body sealing .................................................... BL-168
Bose speaker amp. .............................................. AV-8
Brake booster .................................................... BR-17
Brake fluid level ................................................. MA-28
Brake hydraulic line ........................................... BR-12

IDX-4
ALPHABETICAL INDEX
E
ECM input/output signal ..................... EC-105
, EC-129
ECM power supply ............................. EC-145, EC-453
ECM relay ........................................................ EC-145
ECM/PW - Wiring diagram ............................... EC-454
ECTS - Wiring diagram .................................... EC-194
Electric sunroof .................................................. RF-10
Electric throttle control actuator ......... EC-534, EC-545
Electrical load signal circuit .............................. EC-596
Electrical units location ...................................... PG-65
Electronic ignition (EI) system ........................... EC-26
Engine control circuit diagram ......................... EC-103
Engine control component parts location ........... EC-96
Engine control module (ECM) .......................... EC-457
Engine control system diagram ......................... EC-23
Engine coolant .................................................. CO-10
Engine coolant temperature sensor (ECTS) ... EC-192,
EC-205
Engine fail-safe system ...................................... EC-91
Engine oil ............................................................. LU-7
Engine oil filter replacement ............................. MA-17
Engine oil precautions .......................................... GI-7
Engine oil replacement ..................................... MA-17
Engine removal ................................................. EM-74
Engine room cover ............................................ EM-12
Engine serial number .......................................... GI-49
ETC1 - Wiring diagram .................................... EC-535
ETC2 - Wiring diagram .................................... EC-530
ETC3 - Wiring diagram .................................... EC-541
EVAP canister .................................................... EC-35
EVAP canister purge volume control solenoid valve ....
EC-373
, EC-381
EVAP canister vent control valve ....... EC-388, EC-395
EVAP control system (small leak) diagnosis .. EC-365,
EC-419
, EC-427
EVAP control system pressure sensor .... EC-402, EC-
405, EC-411
EVAP control system purge flow monitoring diagnosis
EC-360
EVAP vapor lines inspection ............................. MA-20
Evaporative emission (EVAP) system ............... EC-32
Evaporator ..................................................... ATC-184
Exhaust manifold .............................................. EM-21
Exhaust system ................................................... EX-3
Exhaust system inspection .................................. EX-3
Expansion valve ............................................. ATC-186
F
F/FOG - Wiring diagram ..................................... LT-71
F/PUMP - Wiring diagram ................................ EC-605
Final drive pre-inspection ................................. FFD-15
Final drive removal and installation .. FFD-12, RFD-13
Flow charts ......................................................... GI-28
Fluid temperature sensor (A/T) ........................ AT-127
Fluids ................................................................ MA-11
Fluorescent leak detector .............................. ATC-187
Fog lamp, front .................................................... LT-69
Fog lamp, front, removal and installation ........... LT-79
Foot lamp ......................................................... LT-135
Freeze frame data ............................... EC-53, EC-118
Front brake solenoid valve ................. AT-143, AT-145
Front bumper ...................................................... EI-13
Front case (Transfer) .......................... TF-149, TF-176
Front combination lamp removal and installation LT-31
Front door ............................. BL-128, BL-131, GW-65
Front Door Trim ................................................... EI-32
Front drive shaft (Transfer) ................. TF-149, TF-176
Front fog lamp .................................................... LT-69
Front fog lamp removal and installation ............. LT-79
Front passenger air bag .................................. SRS-50
Front seat ........................................................... SE-91
Front seat belt ...................................................... SB-3
Front seat belt pre-tensioner ............... SRS-3, SRS-57
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTS - Wiring diagram ....................................... AT-128
FTTS - Wiring diagram ...................... EC-311, EC-316
Fuel cut control (at no load high engine speed) EC-27
Fuel filter replacement ......................................... FL-6
Fuel gauge ............................................................ DI-5
Fuel injection system (Bank 1) .......... EC-288, EC-299
Fuel injection system (Bank 2) .......... EC-288, EC-299
Fuel injector .................................................... EC-598
Fuel injector and fuel tube ................................. EM-31
Fuel level sensor ................. EC-436, EC-438, EC-440
Fuel line inspection .............................................. FL-4
Fuel precautions ................................................... GI-5
Fuel pressure check .......................................... EC-80
Fuel pressure release ....................................... EC-80
Fuel pump ....................................................... EC-604
Fuel pump and gauge .......................................... FL-6
Fuel system .......................................................... FL-4
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor ........... EC-309, EC-315
Fuel tank vacuum relief valve ........................... EC-35
FUELB1 - Wiring diagram ................. EC-290, EC-301
FUELB2 - Wiring diagram ................. EC-292, EC-303
Fuse ...................................................... PG-17, PG-77
Fuse and fusible link box .................................. PG-77
Fuse block ......................................................... PG-76
Fusible link ............................................ PG-17, PG-77
G
Garage jack and safety stand ............................. GI-41
Gauges ................................................................. DI-5
Generator .......................................................... SC-17
Generic scan tool (GST) ................................. EC-127
Glass ...................................... GW-11, GW-65, GW-68
Glove box lamp ................................................ LT-158
GPS antenna ..................................................... AV-85
Grease .............................................................. MA-11
Ground distribution ............................................ PG-31

IDX-6
ALPHABETICAL INDEX
Magnet clutch ............................... ATC-115, ATC-176
MAIN - Wiring diagram ...................... EC-145, AT-167
Main oil pump (Transfer) ..................... TF-154, TF-167
Mainshaft (Transfer) ........................... TF-154, TF-167
Maintenance (engine)Schedule 1 ....................... MA-7
Maintenance (engine)Schedule 2 ....................... MA-9
Major overhaul (Final drive) ............................. FFD-14
Major overhaul (Transfer) ................................ TF-146
Malfunction indicator lamp (MIL) ........................ EC-63
Map lamp .......................................................... LT-135
Mass air flow sensor (MAFS) ............. EC-171, EC-180
Meter ..................................................................... DI-5
METER - Wiring diagram .................................... DI-10
MIL data link connectors circuit ....................... EC-635
MIL/DL - Wiring diagram .................................. EC-635
MIRROR - Wiring diagram ................................ GW-93
Misfire .............................................................. EC-327
Mode door control linkage adjustment ............. ATC-66
Mode door motor ............................ ATC-64, ATC-161
Model variation ................................................... GI-47
Multiport fuel injection (MFI) system .................. EC-24
Multiport fuel injection precautions ....................... GI-6
Multi-remote control system - See Remote keyless entry
system ............................................................... BL-44
N
NATS - Wiring diagram .................................... BL-140
NAVI - Wiring diagram ....................................... AV-89
NAVI Control Unit .............................................. AV-86
Navigation system ............................................. AV-84
Neutral-4LO switch ............................................ TF-62
NONDTC - Wiring diagram .............................. AT-176
NVH troubleshooting (AX) ................................. FAX-4
NVH troubleshooting (EM) ................................ EM-10
NVH troubleshooting (Final drive) ..................... RFD-7
NVH troubleshooting (Propeller shaft) ................. PR-3
NVH troubleshooting (RAX) .............................. RAX-4
NVH troubleshooting (RSU) .............................. RSU-5
NVH troubleshooting (ST) .................................... PS-5
NVH troubleshooting (Transfer) ......................... TF-10
NVH troubleshooting (WT)NVH troubleshooting (WT) .
WT-4
NVIS (Nissan vehicle immobilizer system) precautions
GI-3
O
O2H2B1 - Wiring diagram ................................ EC-165
O2H2B2 - Wiring diagram ................................ EC-167
O2S2B1 - Wiring diagram ... EC-256, EC-267, EC-280
O2S2B2 - Wiring diagram ... EC-258, EC-269, EC-282
Oil cooler (engine) ............................................. LU-11
Oil filter ............................................................... LU-10
Oil filter (Transfer) ............................................ TF-143
Oil pan (engine) ................................................ EM-24
Oil pressure (engine) ........................................... LU-7
Oil pressure relief valve (engine) ......................... LU-5
Oil pump (engine) .............................................. LU-13
Oil seal replacement (engine) ........................... EM-60
Oil seal replacement (front of final drive) FFD-8, RFD-9
Oil seal replacement (side of final drive) ......... RFD-11
On board diagnostic system ............................. EC-48
ORVR (On-board Refueling Vapor Recovery) .. EC-39
Overheat ......................................................... EC-473
P
P/SCKT - Wiring diagram ................................. WW-53
Pantograph jack .................................................. GI-41
Park/Neutral position switch ............................ EC-465
Parking brake control ........................................... PB-4
PCV (positive crankcase ventilation) ................ EC-45
Periodic maintenance ......................................... MA-7
Personal lamp .................................................. LT-135
PGC/V - Wiring diagram ................... EC-375, EC-383
PHASE - Wiring diagram ................................ EC-349
PHONE - Wiring diagram ................................... AV-67
Pinion bearing preload diff. ............................. RFD-26
Piston pin inspection ......................................... EM-94
Piston ring inspection ........................................ EM-95
Piston to bore clearance ................................... EM-99
Planetary carrier (Transfer) ................. TF-149, TF-176
PNP/SW - Wiring diagram ... EC-467, AT-105, AT-106
POS - Wiring diagram ..................................... EC-342
POWER - Wiring diagram ................................... PG-6
Power door lock ................................................. BL-16
Power seat ......................................................... SE-83
Power steering fluid level .................................. MA-29
Power steering gear ........................................... PS-15
Power steering oil pump .................................... PS-21
Power steering pressure (PSP) sensor ........... EC-448
Power steering system bleeding .......................... PS-6
Power supply routing .......................................... PG-4
Power window .................................................. GW-15
PRE/SE - Wiring diagram ................. EC-407, EC-413
Precautions (General) ........................................... GI-4
Precautions in repairing high strength steel ..... BL-190
Pressure switch 1 ............................... AT-145, AT-159
Pressure switch 2 ............................................. AT-157
Pressure switch 3 ............................... AT-141, AT-161
Pressure switch 5 ............................... AT-149, AT-163
Pressure switch 6 ............................... AT-153, AT-165
Pressure test (A/T) ............................................. AT-52
Propeller shaft ........................................... PR-4, PR-8
Propeller shaft inspection .................................. MA-25
Propeller shaft on vehicle service ....................... PR-8
Propeller shaft vibration ............................ PR-4, PR-8
PS/SEN - Wiring diagram ............................... EC-449
R
R/VIEW - Wiring diagram .................................... DI-76
Radiator ............................................................ CO-14
Rear Audio Remote Control Unit ......................... AV-8
Rear axle ........................................................... RAX-5
Rear bumper ....................................................... EI-15
Rear case (Transfer) ........................... TF-148, TF-181