2006 INFINITI FX35 exh

PRECAUTIONS GI-5
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Revision: 2006 December 2006 FX35/FX45

To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.

Dispose of or recycle drained oil or the solvent used for cleaning
parts in an appropriate manner.

Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.

Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.

Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.

Replace inner and outer races of tapered roller bearings and needle bearings as a set.

Arrange the disassembled parts in accordance with their assembled locations and sequence.

Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.

After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.

Use only the fluids and lubricants specified in this manual.

Use approved bonding agent, sealants or their equivalents when required.

Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs.

When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.

Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for Three Way CatalystNAS00061
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.

Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.

When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
SGI233
PBIC0190E
SGI234

GI-6
PRECAUTIONS
Revision: 2006 December 2006 FX35/FX45

Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for Fuel (Unleaded Premium Gasoline Recommended)NAS00062
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research
octane number 91).
For improved vehicle performance, NISSAN/INFINITI recommend the use of unleaded premium gasoline with
an octane rating of at least 91 AKI number (Research octane number 96).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.

GI-52
TERMINOLOGY
Revision: 2006 December 2006 FX35/FX45
TERMINOLOGYPFP:00011
SAE J1930 Terminology List NAS00070
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 TERM NEW ACRONYM /
ABBREVIATION OLD TERM
Air cleaner ACL Air cleaner
Barometric pressure BARO ***
Barometric pressure sensor-BCDD BAROS-BCDD BCDD
Camshaft position CMP ***
Camshaft position sensor CMPS Crank angle sensor
Canister *** Canister
Carburetor CARB Carburetor
Charge air cooler CAC Intercooler
Closed loop CL Closed loop
Closed throttle position switch CTP switch Idle switch
Clutch pedal position switch CPP switch Clutch 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 DTM Diagnostic mode
Diagnostic test mode selector DTM selector Diagnostic mode selector
Diagnostic test mode I DTM I Mode I
Diagnostic test mode II DTM II Mode II
Diagnostic trouble code DTC Malfunction code
Direct fuel injection system DFI system ***
Distributor ignition system DI system Ignition timing control
Early fuel evaporation-mixture heater EFE-mixture heater Mixture heater
Early fuel evaporation system EFE system Mixture heater control
Electrically erasable programmable read
only memory EEPROM ***
Electronic ignition system EI system Ignition timing control
Engine control EC ***
Engine control module ECM ECCS control unit
Engine coolant temperature ECT Engine temperature
Engine coolant temperature sensor ECTS Engine temperature sensor
Engine modification EM ***
Engine speed RPM Engine speed
Erasable programmable read only memory EPROM ***
Evaporative emission canister EVAP canister Canister
Evaporative emission system EVAP system Canister control solenoid valve
Exhaust gas recirculation valve EGR valve EGR valve

TERMINOLOGY GI-53
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Revision: 2006 December 2006 FX35/FX45
Exhaust gas recirculation control-BPT
valve EGRC-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

GI-54
TERMINOLOGY
Revision: 2006 December 2006 FX35/FX45
Nonvolatile random access memory NVRAM ***
On board diagnostic system OBD system Self-diagnosis
Open loop OL Open loop
Oxidation catalyst OC Catalyst
Oxidation catalytic converter system OC system ***
Oxygen sensor O2S Exhaust gas sensor
Park position switch *** Park switch
Park/neutral position switch PNP switch Park/neutral switch
Inhibitor switch
Neutral position switch
Periodic trap oxidizer system PTOX system ***
Positive crankcase ventilation PCV Positive 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 TVV Thermal vacuum valve
Three way catalyst TWC Catalyst
Three way catalytic converter system TWC system ***
Three way + oxidation catalyst TWC + OC Catalyst
Three way + oxidation catalytic converter
system TWC + OC system ***
Throttle body TB Throttle chamber
SPI body
Throttle body fuel injection system TBI system Fuel injection control
Throttle position TP Throttle position
Throttle position sensor TPS Throttle sensor
Throttle position switch TP switch Throttle switch
Torque converter clutch solenoid valve TCC solenoid valve Lock-up cancel solenoid
Lock-up solenoid
NEW TERM
NEW ACRONYM /
ABBREVIATION OLD TERM

IDX-4
ALPHABETICAL INDEX
Electrical load signal circuit .............. EC-626, EC-1305
Electrical unit ..................................................... PG-75
Electrical units location ...................................... PG-68
Electronic ignition (EI) system ............. EC-33, EC-693
Engine control circuit diagram ......................... EC-108
Engine control component parts location ......... EC-101
Engine control module (ECM) .......... EC-481, EC-1146
Engine control system diagram ........... EC-30, EC-690
Engine coolant temperature sensor (ECTS) ... EC-210,
EC-222
, EC-879, EC-892
Engine coolant(VK45DE) .................................. CO-38
Engine coolant(VQ35DE) ................................. CO-11
Engine fail-safe system ...................................... EC-96
Engine oil filter replacement ............................. MA-26
Engine oil filter replacement(VQ35DE) ............. MA-19
Engine oil precautions .......................................... GI-8
Engine oil replacement(VQ35DE) ..................... MA-18
Engine oil(VK45DE) ........................................... LU-25
Engine oil(VQ35DE) ............................................ LU-7
Engine removal(VK45DE) ............................... EM-243
Engine removal(VQ35DE) .............................. EM-113
Engine room cover(VK45DE) ......................... EM-173
ETC1 - Wiring diagram .................... EC-563, EC-1241
ETC2 - Wiring diagram .................... EC-558, EC-1236
ETC3 - Wiring diagram .................... EC-569, EC-1248
EVAP canister ...................................... EC-42, EC-702
EVAP canister purge volume control solenoid valve ....
EC-397
, EC-405, EC-1063, EC-1071
EVAP canister vent control valve ...... EC-412, EC-419,
EC-1078
, EC-1085
EVAP control system (small leak) diagnosis .. EC-388,
EC-450
, EC-1054, EC-1116
EVAP control system pressure sensor ........... EC-425,
EC-428
, EC-434, EC-1091, EC-1094, EC-1100
EVAP control system purge flow monitoring diagnosis
EC-383
, EC-1049
EVAP vapor lines inspection ................. MA-21, MA-28
Evaporative emission (EVAP) system . EC-39, EC-699
Evaporator ..................................................... ATC-154
Exhaust manifold(VK45DE) ............................ EM-183
Exhaust manifold(VQ35DE) .............................. EM-26
Exhaust system ................................................... EX-3
Exhaust system inspection ..................... EX-3, MA-29
Expansion valve ............................................. ATC-155
F
F/PUMP - Wiring diagram ................ EC-636
, EC-1315
Final drive pre-inspection .................. FFD-20, RFD-19
Final drive removal and installation .. FFD-13, FFD-15,
RFD-16
Floor trim ............................................................. EI-40
Flow charts ......................................................... GI-28
Fluid temperature sensor (A/T) ........................ AT-134
Fluorescent leak detector .............................. ATC-156
Freeze frame data ............................... EC-59, EC-720
Front axle ................................ FAX-4, FAX-10, RAX-5
Front brake solenoid valve ................. AT-150, AT-152
Front bumper ...................................................... EI-14
Front door ............................. BL-148, BL-152, GW-58
Front passenger air bag .................................. SRS-42
Front seat belt ...................................................... SB-4
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-48
Front suspension .............................................. FSU-6
FTS - Wiring diagram ....................................... AT-135
FTTS - Wiring diagram ...... EC-330, EC-335, EC-999,
EC-1004
Fuel cut control (at no load high engine speed) EC-34,
EC-694
Fuel filter replacement ......................................... FL-4
Fuel gauge ............................................................ DI-5
Fuel injection system (Bank 1) ......... EC-305, EC-317,
EC-975
, EC-986
Fuel injection system (Bank 2) ......... EC-305, EC-317,
EC-975
, EC-986
Fuel injector ..................................................... EC-628
Fuel injector and fuel tube(VK45DE) .............. EM-194
Fuel injector and fuel tube(VQ35DE) ................ EM-45
Fuel level sensor EC-460, EC-462, EC-464, EC-1125,
EC-1127
, EC-1129
Fuel line inspection .................................. FL-3, MA-25
Fuel line inspection(VQ35DE) .......................... MA-17
Fuel precautions .......................................... GI-6, GI-7
Fuel pressure check ........................... EC-86, EC-746
Fuel pressure release ......................... EC-86, EC-746
Fuel pump ....................................... EC-635, EC-1314
Fuel pump and gauge .......................................... FL-4
Fuel system ......................................................... FL-3
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor .......... EC-328, EC-334,
EC-997
, EC-1003
Fuel tank vacuum relief valve ............. EC-42, EC-702
FUELB1 - Wiring diagram .. EC-307, EC-319, EC-977,
EC-988
FUELB2 - Wiring diagram .. EC-309, EC-321, EC-979,
EC-990
Fuse .................................................................. PG-16
Fuse and fusible link box .................................. PG-82
Fusible link ........................................................ PG-16
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Gauges ................................................................. DI-5
Generic scan tool (GST) .................................. EC-130
Glass ...................................... GW-11, GW-58, GW-62
Grille - See Exterior ............................................ EI-22
Ground distribution ........................................... PG-29
H
Harness connector ............................................ PG-72
Harness layout .................................................. PG-44
Headlining - See Roof trim .................................. EI-42
Heated oxygen sensor 2 (bank 1) .... EC-270, EC-281,
EC-294
, EC-940, EC-951, EC-964
Heated oxygen sensor 2 (bank 2) .... EC-270, EC-281,
EC-294
, EC-940, EC-951, EC-964
Heated oxygen sensor 2 heater (bank 1) ....... EC-173,

MA-1
MAINTENANCE
L MAINTENANCE
CONTENTS
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SECTION MA
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Revision: 2006 December 2006 FX35/FX45
MAINTENANCE
PREPARATION ...................................................... ..... 3
Special Service Tools .......................................... ..... 3
Commercial Service Tools ................................... ..... 3
GENERAL MAINTENANCE .................................. ..... 4
Explanation of General Maintenance .................. ..... 4
PERIODIC MAINTENANCE .................................. ..... 7
Introduction of Periodic Maintenance .................. ..... 7
Schedule 1 .......................................................... ..... 8
EMISSION CONTROL SYSTEM MAINTE-
NANCE ............................................................. ..... 8
CHASSIS AND BODY MAINTENANCE .......... ..... 9
Schedule 2 .......................................................... ... 10
EMISSION COMTROL SYSTEM MAINTE-
NANCE ............................................................. ... 10
CHASSIS AND BODY MAINTENANCE .......... .... 11
RECOMMENDED FLUIDS AND LUBRICANTS ... ... 12
Fluids and Lubricants .......................................... ... 12
SAE Viscosity Number ........................................ ... 13
GASOLINE ENGINE OIL ................................. ... 13
Anti-Freeze Coolant Mixture Ratio ...................... ... 13
ENGINE MAINTENANCE (VQ35DE ENGINE) ...... ... 14
Checking Drive Belts ........................................... ... 14
Drive Belts Tension Adjustment .......................... ... 14
ALTERNATOR AND POWER STEERING OIL
PUMP BELT ..................................................... ... 15
A/C COMPRESSOR BELT .............................. ... 15
Changing Engine Coolant ................................... ... 15
DRAINING ENGINE COOLANT ...................... ... 15
REFILLING ENGINE COOLANT ..................... ... 16
FLUSHING COOLING SYSTEM ...................... ... 17
Checking Fuel Lines ............................................ ... 17
Changing Air Cleaner Filter ................................. ... 18
VISCOUS PAPER TYPE .................................. ... 18
Changing Engine Oil ........................................... ... 18
Changing Oil Filter .............................................. ... 19
REMOVAL ........................................................ ... 19
INSTALLATION ................................................ ... 19
INSPECTION AFTER INSTALLATION ............ ... 20
Changing Spark Plugs (Platinum-Tipped Type) .. ... 20
REMOVAL ........................................................ ... 20 INSPECTION AFTER REMOVAL ....................
... 20
INSTALLATION ................................................ ... 21
Checking EVAP Vapor Lines ............................... ... 21
ENGINE MAINTENANCE (VK45DE ENGINE) ...... ... 22
Checking Drive Belts ........................................... ... 22
Tension Adjustment ............................................. ... 22
Changing Engine Coolant .................................... ... 22
DRAINING ENGINE COOLANT ....................... ... 23
REFILLING ENGINE COOLANT ...................... ... 23
FLUSHING COOLING SYSTEM ...................... ... 24
Checking Fuel Lines ............................................ ... 25
Changing Air Cleaner Filter ................................. ... 25
VISCOUS PAPER TYPE .................................. ... 25
Changing Engine Oil ............................................ ... 25
Changing Oil Filter ............................................... ... 26
REMOVAL ........................................................ ... 26
INSTALLATION ................................................ ... 26
INSPECTION AFTER INSTALLATION ............. ... 27
Changing Spark Plugs (Platinum-Tipped Type) ... ... 27
REMOVAL ........................................................ ... 27
INSPECTION AFTER REMOVAL .................... ... 27
INSTALLATION ................................................ ... 28
Checking EVAP Vapor Lines ............................... ... 28
CHASSIS AND BODY MAINTENANCE ................ ... 29
Checking Exhaust System ................................... ... 29
Checking A/T Fluid .............................................. ... 29
Changing A/T Fluid .............................................. ... 31
Checking Transfer Fluid ...................................... ... 31
Changing Transfer Fluid ...................................... ... 32
Checking Propeller Shaft ..................................... ... 32
Checking Differential Gear Oil ............................. ... 32
Changing Differential Gear Oil ............................. ... 33
Balancing Wheels (Bonding Weight Type) .......... ... 33
REMOVAL ........................................................ ... 33
WHEEL BALANCE ADJUSTMENT .................. ... 33
Tire Rotation ........................................................ ... 35
Checking Brake Fluid Level and Leaks ............... ... 35
Checking Brake Lines and Cables ...................... ... 35
Changing Brake Fluid .......................................... ... 35
Checking Disc Brake ........................................... ... 36

MA-6
GENERAL MAINTENANCE
Revision: 2006 December 2006 FX35/FX45
UNDER THE HOOD AND VEHICLE
The maintenance items listed here should be checked periodically (e.g. each time you check the engine oil or refuel). Parking brake
Check that the pedal has the proper travel and make sure that the vehicle is
held securely on a fairly steep hill when only the parking brake is applied. PB-3
Automatic transmis-
sion "Park" mecha-
nism Check that the lock release button on the selector lever operates properly and
smoothly. On a fairly steep hill check that the vehicle is held securely with the
selector lever in the P (Park) position without applying any brakes. —
Item
Reference page
Item Reference page
Windshield washer
fluid Check that there is adequate fluid in the tank. —
Engine coolant level Check the coolant level when the engine is cold. MA-15
, MA-22
Radiator and hoses Check the front of the radiator and clean off any dirt, insects, leaves, etc., that
may have accumulated. Make sure the hoses have no cracks, deformation,
deterioration or loose connections. —
Brake fluid level Make sure that the brake fluid level is between the “MAX” and “MIN” lines on
the reservoir. MA-35

Battery Check the fluid level in each cell. It should be between the “MAX” and “MIN”
lines. Vehicles operated in high temperatures or under severe conditions
require frequent checks of the battery fluid level. SC-5
Engine drive belts
Make sure that no belt is frayed, worn, cracked or oily. MA-14, MA-22
Engine oil level Check the level on the oil level gauge after parking the vehicle on a level spot
and turning off the engine. MA-18,
MA-25
Power steering fluid
level and lines Check the level on the dipstick with the engine off. Check the lines for improper
attachment, leaks, cracks, etc. MA-37
Exhaust system
Make sure there are no loose supports, cracks or holes. If the sound of the
exhaust seems unusual or there is a smell of exhaust fumes, immediately
locate the trouble and correct it. MA-29
Underbody
The underbody is frequently exposed to corrosive substances such as those
used on icy roads or to control dust. It is very important to remove these sub-
stances, otherwise rust will form on the floor pan, frame, fuel lines and around
the exhaust system. At the end of winter, the underbody should be thoroughly
flushed with plain water, being careful to clean those areas where mud and dirt
can easily accumulate. —
Fluid leaks Check under the vehicle for fuel, oil, water or other fluid leaks after the vehicle
has been parked for a while. Water dripping from the air conditioner after use is
normal. If you should notice any leaks or gasoline fumes are evident, check for
the cause and correct it immediately. —