gas INFINITI FX35 2004 Service Manual

TERMINOLOGY
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Revision: 2004 November 2004 FX35/FX45
Exhaust gas recirculation control-BPT
valveEGRC-BPT valve BPT valve
Exhaust gas recirculation control-solenoid
valveEGRC-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 memoryFEEPROM ***
Flash erasable programmable read only
memoryFEPROM ***
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
valveIACV-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 valveIACV-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 controlNEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

GI-54
TERMINOLOGY
Revision: 2004 November 2004 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 switchPark/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 valvePAIRC 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
systemTWC + OC system ***
Throttle body TBThrottle 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 valveLock-up cancel solenoid
Lock-up solenoid NEW TERMNEW ACRONYM /
ABBREVIATIONOLD TERM

PRECAUTIONS
GW-3
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AIS0039V
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.
Handling for Adhesive and PrimerAIS0039W

Do not use an adhesive which is past its usable date. Shelf life of this product is limited to six months after
the date of manufacture. Carefully adhere to the expiration or manufacture date printed on the box.

Keep primers and adhesive in a cool, dry place. Ideally, 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.
Wiring Diagrams and Trouble Diagnosis AIS0039X
When you read wiring diagrams, refer to the following:

GI-15, "How to Read Wiring Diagrams".

PG-3, "POWER SUPPLY ROUTING CIRCUIT".
When you perform trouble diagnosis, refer to the following:

GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES".

GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident".
Check for any service bulletins before servicing the vehicle.

IDX-5
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IDX
ALPHABETICAL INDEX
LT-73
Headlining - See Roof trim .................................. EI-42
Heated oxygen sensor 1 (bank 1) .... EC-205, EC-214,
EC-226
, EC-433, EC-439, EC-863, EC-872, EC-884,
EC-1103
, EC-1109
Heated oxygen sensor 1 (bank 2) .... EC-205, EC-214,
EC-226
, EC-433, EC-439, EC-863, EC-872, EC-884,
EC-1103
, EC-1109
Heated oxygen sensor 1 heater (bank 1) ....... EC-149,
EC-806
Heated oxygen sensor 1 heater (bank 2) ....... EC-149,
EC-806
Heated oxygen sensor 2 (bank 1) .... EC-236, EC-245,
EC-446
, EC-457, EC-894, EC-903, EC-1116, EC-1127
Heated oxygen sensor 2 (bank 2) .... EC-236, EC-245,
EC-446
, EC-457, EC-894, EC-903, EC-1116, EC-1127
Heated oxygen sensor 2 heater (bank 1) ....... EC-157,
EC-814
Heated oxygen sensor 2 heater (bank 2) ....... EC-157,
EC-814
Heated seat ....................................................... SE-98
Heater and cooling unit (Heater core) ........... ATC-126
HFC134a (R134a) system precaution ............... ATC-5
HFC134a (R134a) system service procedure ATC-137
HFC134a (R134a) system service tools .......... ATC-18
HFC134a system service equipment precaution ..........
ATC-13
High & low reverse clutch solenoid valve ....... AT-164,
AT-166
Hood ................................................................... BL-14
Horn ................................................................. WW-56
HORN - Wiring diagram ................................... WW-56
HSEAT - Wiring diagram ................................... SE-99
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IATS - Wiring diagram ....................... EC-182
, EC-839
ICC - Wiring diagram ....................................... ACS-20
ICC/BS - Wiring diagram ................. EC-524, EC-1191
ICC/SW - Wiring diagram ................ EC-510, EC-1176
ICCBOF - Wiring diagram ................ EC-616, EC-1294
Idle air volume learning ....................... EC-49, EC-698
Idle mixture ratio .................................. EC-38, EC-687
Idle speed ............................................ EC-38, EC-687
Idle speed control (ISC) .... EC-392, EC-394, EC-1048,
EC-1050
Ignition coil ....................................... EC-585, EC-1262
Ignition coil(VK45DE) ...................................... EM-185
Ignition coil(VQ35DE) ........................................ EM-42
Ignition control system ..................... EC-585, EC-1262
Ignition key hole illumination ............................. LT-153
Ignition timing ...................................... EC-38, EC-687
IGNSYS - Wiring diagram ................ EC-586, EC-1263
Illumination control ............................................ LT-197
In vehicle sensor ........................... ATC-107, ATC-118
INF/D - Wring diagram ....................................... AV-63
INJECT - Wiring diagram ................. EC-598, EC-1275
Injector ............................................. EC-597, EC-1274
Input clutch solenoid valve ................. AT-152, AT-154
Instrument panel ................................................. IP-10
Intake air temperature sensor ........... EC-180, EC-200,
EC-837
, EC-858
Intake door control linkage adjustment ............ ATC-78
Intake door motor ............................ ATC-76, ATC-124
Intake manifold(VK45DE) ............................... EM-174
Intake manifold(VQ35DE) ................................. EM-24
Intake sensor ................................ ATC-113, ATC-120
Intake valve timing control (Bank 1) ... EC-145, EC-795
Intake valve timing control (Bank 2) ... EC-145, EC-795
Intake valve timing control position sensor (Bank 1) ....
EC-1095
Intake valve timing control position sensor (Bank 2) ....
EC-1095
Intake valve timing control solenoid valve (Bank 1) ......
EC-408
, EC-1070
Intake valve timing control solenoid valve (Bank 2) ......
EC-408
, EC-1070
Integrated homelink transmitter ....................... BL-228
Intelligent cruise control (ICC) system .............. ACS-6
Interior ................................................................. EI-37
Interior lamp ...................................................... LT-157
IPDM (Intelligent power distribution module engine
room) ................................................................. PG-18
IVCB1 - Wiring diagram .... EC-409, EC-798, EC-1071
IVCB2 - Wiring diagram .... EC-411, EC-800, EC-1073
IVCSB1 - Wiring diagram ............................... EC-1096
IVCSB2 - Wiring diagram ............................... EC-1098
IVIS (Infiniti vehicle immobilizer system) precautions ...
GI-3
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Joint connector (J/C) .......................................... PG-76
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Knock sensor (KS) ............................. EC-297
, EC-955
KS - Wiring diagram ........................... EC-298, EC-956
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LAN system circuit ........................................... ATC-66
Laser beam aiming adjustment ....................... ACS-12
Latch (lower anchors and tether for children) system ...
SB-11
Line pressure solenoid valve ........................... AT-127
Line pressure test (A/T) ..................................... AT-52
Liquid gasket application ................................... LU-21
Liquid gasket application(VQ35DE) EM-6, LU-3, CO-3
Location of electrical units ................................. PG-70
Low coast brake solenoid valve ......... AT-168, AT-170
Low tire pressure warning system ...................... WT-7
Lubricant (R134a) A/C ........................ ATC-7, ATC-27
Lubrication circuit (engine)(VK45DE) ................ LU-23
Lubrication circuit (engine)(VQ35DE) .................. LU-5
Lubrication oil A/C .......................................... ATC-161

LT-6
PRECAUTIONS
Revision: 2004 November 2004 FX35/FX45
General precautions for service operationsAKS004ZU

Never work with wet hands.

Xenon headlamp includes high voltage generating part. Be sure
to disconnect battery negative cable (negative terminal) or
power fuse before removing, installing, or touching the xenon
headlamp (including lamp bulb).

Turn the lighting switch OFF before disconnecting and connect-
ing the connector.

When turning the xenon headlamp on and while it is illuminated,
never touch the harness, bulb, and socket of the headlamp.

When checking the headlamp on/off operation, check it on vehi-
cle and with the power connected to the vehicle-side connector.

Do not touch the headlamp bulb glass surface with bare hands or allow oil or grease to get on it. Do not
touch the headlamp bulb just after the headlamp is turned off, because it is very hot.

Install the xenon headlamp bulb socket correctly. If it is installed
improperly, high-voltage leak or corona discharge may occur
that can melt the bulb, connector, and housing. Do not illuminate
the xenon headlamp bulb out of the headlamp housing. Doing
so can cause fire and harm your eyes.

When the bulb has burned out, wrap it in a thick vinyl bag and
discard. Do not break the bulb.

Leaving the bulb removed from the headlamp housing for a long
period of time can deteriorate the performance of the lens and
reflector (dirt, clouding). Always prepare a new bulb and have it
on hand when replacing the bulb.

When adjusting the headlamp aiming, turn the aiming adjust-
ment screw only in the tightening direction. (If it is necessary to loosen the screw, first fully loosen the
screw, and then turn it in the tightening direction.)

Do not use organic solvent (paint thinner or gasoline) to clean lamps and to remove old sealant.
Wiring Diagrams and Trouble DiagnosisAKS004ZV
When you read wiring diagrams, refer to the following:

Refer to GI-15, "How to Read Wiring Diagrams" in GI section.

Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" for power distribution in PG section.
When you perform trouble diagnosis, refer to the following:

Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.

Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.
PKIA0183E
EL-3422D

HEADLAMP - XENON TYPE -
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Ground is supplied

to headlamp RH terminal 7

through grounds E21, E50 and E51

to headlamp LH terminal 7

through grounds E21, E50 and E51.
With power and ground supplied, the high beam headlamps illuminate.
If voltage is applied to a high beam solenoid, the bulb shade will move, even a xenon head lamp bulb comes
out, and a high beam and a low beam are changed.
The unified meter and A/C amp that received the high beam request signal by BCM across the CAN commu-
nication makes a high beam indicator lamp turn on in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), and the ignition switch is turned
from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the headlamps remain illuminated for 5 minutes, then the headlamps are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
AUTO LIGHT OPERATION (IF EQUIPPED)
Refer to LT- 5 4 , "System Description" in “AUTO LIGHT SYSTEM”.
VEHICLE SECURITY SYSTEM
The vehicle security system will flash the high beams if the system is triggered. Refer to BL-181, "VEHICLE
SECURITY (THEFT WARNING) SYSTEM" .
XENON HEADLAMP
Xenon type headlamp is adopted to the low and high beam headlamps. Xenon bulbs do not use a filament.
Instead, they produce light when a high voltage current is passed between two tungsten electrodes through a
mixture of xenon (an inert gas) and certain other metal halides. In addition to added lighting power, electronic
control of the power supply gives the headlamps stable quality and tone color.
Following are some of the many advantages of the xenon type headlamp.

The light produced by the headlamps is a white color comparable to sunlight that is easy on the eyes.

Light output is nearly double that of halogen headlamps, affording increased area of illumination.

The light features a high relative spectral distribution at wavelengths to which the human eye is most sen-
sitive. This means that even in the rain, more light is reflected back from the road surface toward the vehi-
cle, for added visibility.

Power consumption is approximately 25 percent less than halogen headlamps, reducing battery load.
CAN Communication System DescriptionAKS007MB
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080S
Refer to LAN-6, "CAN Communication Unit" .

LU-1
ENGINE LUBRICATION SYSTEM
B ENGINE
CONTENTS
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SECTION LU
A
LU
Revision: 2004 November 2004 FX35/FX45
ENGINE LUBRICATION SYSTEM
VQ35DE
PRECAUTIONS .......................................................... 3
Precautions for Liquid Gasket .................................. 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
LUBRICATION SYSTEM ............................................ 5
Lubrication Circuit .................................................... 5
System Drawing ....................................................... 6
ENGINE OIL ............................................................... 7
Inspection ................................................................. 7
ENGINE OIL LEVEL ............................................. 7
ENGINE OIL APPEARANCE ................................ 7
ENGINE OIL LEAKAGE ........................................ 7
OIL PRESSURE CHECK ...................................... 8
Changing Engine Oil ................................................ 9
OIL FILTER ............................................................... 10
Removal and Installation ........................................ 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 10
INSPECTION AFTER INSTALLATION ............... 10
OIL FILTER BRACKET (AWD) ................................. 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ............... 12
OIL COOLER ............................................................ 14
Removal and Installation ........................................ 14
2WD MODEL ...................................................... 14
AWD MODEL ...................................................... 15
REMOVAL ........................................................... 15
INSPECTION AFTER REMOVAL ....................... 15
INSTALLATION ................................................... 16
INSPECTION AFTER INSTALLATION ............... 16
OIL PUMP ................................................................. 17
Removal and Installation ........................................ 17REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
INSPECTION AFTER INSTALLATION ................ 17
Disassembly and Assembly .................................... 17
DISASSEMBLY ................................................... 17
INSPECTION AFTER DISASSEMBLY ................ 18
ASSEMBLY ......................................................... 19
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 20
Standard and Limit .................................................. 20
ENGINE OIL PRESSURE ................................... 20
OIL PUMP ........................................................... 20
REGULATOR VALVE .......................................... 20
ENGINE OIL CAPACITY (APPROXIMATE) ........ 20
VK45DE
PRECAUTIONS ........................................................ 21
Precautions for Liquid Gasket ................................ 21
LIQUID GASKET APPLICATION PROCEDURE ... 21
PREPARATION ......................................................... 22
Special Service Tools ............................................. 22
Commercial Service Tools ...................................... 22
LUBRICATION SYSTEM .......................................... 23
Lubrication Circuit ................................................... 23
System Drawing ..................................................... 24
ENGINE OIL .............................................................. 25
Inspection ............................................................... 25
ENGINE OIL LEVEL ............................................ 25
ENGINE OIL APPEARANCE .............................. 25
ENGINE OIL LEAKAGE ...................................... 25
OIL PRESSURE CHECK .................................... 25
Changing Engine Oil ............................................... 26
OIL FILTER ............................................................... 28
Removal and Installation ........................................ 28
REMOVAL ........................................................... 28
INSTALLATION ................................................... 28
INSPECTION AFTER INSTALLATION ................ 28

PRECAUTIONS
LU-3
[VQ35DE]
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[VQ35DE]PRECAUTIONSPFP:00001
Precautions for Liquid GasketABS005ZE
LIQUID GASKET APPLICATION PROCEDURE
1. Remove old liquid gasket adhering to the liquid gasket application surface and the mating surface.

Remove liquid gasket completely from the liquid gasket application surface, mounting bolts, and bolt
holes.
2. Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating
use) to remove adhering moisture, grease and foreign materials.
3. Attach liquid gasket tube to tube presser [SST: WS39930000 ( –
)].
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-48, "
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS" .

Within five minutes of liquid gasket application, install the mat-
ing component.

If liquid gasket protrudes, wipe it off immediately.

Do not retighten after the installation.

After 30 minutes or more have passed from the installation, fill
engine oil and engine coolant.EMA0622D

LU-4
[VQ35DE]
PREPARATION
Revision: 2004 November 2004 FX35/FX45
PREPARATIONPFP:00002
Special Service ToolsABS004SQ
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsABS004SR
Tool number
(Kent-Moore No.)
Tool nameDescription
ST25051001
(J-25695-1)
Oil pressure gaugeMeasuring oil pressure
Maximum measuring range: 2,452 kPa (25
kg-cm
2 , 356 psi)
ST25052000
(J-25695-2)
HoseAdapting oil pressure gauge to upper oil pan
KV10115801
(J-38956)
Oil filter wrenchRemoving and installing oil filter
a: 64.3 mm (2.531 in)
WS39930000
(—)
Tube presser Pressing tube of liquid gasket
NT050
S-NT559
S-NT375
NT052
Tool nameDescription
Deep socketRemoving and installing oil pressure switch
(2WD model)
a: 26 mm (1.02 in)
Power toolsLoosening nuts and bolts
PBIC2072E
PBIC0190E

LU-8
[VQ35DE]
ENGINE OIL
Revision: 2004 November 2004 FX35/FX45
OIL PRESSURE CHECK
WARNING:

Be careful not to burn yourself, as engine oil may be hot.

Put selector lever in the Park “P” position.
1. Check engine oil level. Refer to LU-7, "
ENGINE OIL LEVEL" .
2. Remove front engine undercover with power tool.
3. Disconnect oil pressure switch harness connector.
4. Remove oil pressure switch.
5. Install oil pressure gauge (SST) and hose (SST).
6. Start engine and warm it up to normal operating temperature.
7. Check engine oil pressure with engine running under no-load.
NOTE:
When engine oil temperature is low, engine oil pressure becomes high.
Engine oil pressure [Engine oil temperature at 80 °C (176 °F)]
If difference is extreme, check engine oil passage and oil pump for engine oil leaks.
8. After the inspections, install oil pressure switch as follows:
a. Remove old liquid gasket adhering to oil pressure switch and the mating surface.
b. Apply liquid gasket and tighten oil pressure switch to specification.
SBIA0452E
SBIA0453E
SLC926
Engine speed (rpm)
Approximate discharge pressure [kPa (kg/cm2 , psi)]
Idle speed More than 98 (1.0, 14)
2,000 More than 294 (3.0, 43)