ignition switch INFINITI FX35 2008 Service Manual

FUEL SYSTEMFL-3
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FUEL SYSTEM
Checking Fuel LineINFOID:0000000001327104
Inspect fuel lines, fuel filler cap and fuel tank for improper attach-
ment, leaks, cracks, damage, loos
e connections, chafing or deterio-
ration.
If necessary, repair or replace damaged parts.
General PrecautionINFOID:0000000001327105
WARNING:
When replacing fuel line parts, be sure to observe the following.
• Put a “CAUTION: FLAMMABLE” sign in the workshop.
 Be sure to work in a well ventila ted area and furnish workshop with a CO
2 fire extinguisher.
 Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.
CAUTION:
 Use gasoline required by the regulations for octane number. Refer to GI-5, "
Precaution for Fuel
(Unleaded Premium Gasoline Recommended)".
 Before removing fuel line parts, carry out the following procedures:
- Put drained fuel in an explosion-proof containe r and put the lid on securely. Keep the container in
safe area.
- Release fuel pressure from th e fuel lines. Refer to EC-87, "
Fuel Pressure Check" (VQ35DE) or EC-
665, "Fuel Pressure Check" (VK45DE).
- Disconnect negative battery terminal.
 Always replace O-ring and clamps with new ones.
 Do not kink or twist tubes when they are being installed.
 Do not tighten hose clamps excessi vely to avoid damaging hoses.
 After connecting fuel tube qu ick connectors, make sure quick
connectors are secure.
Ensure that connector and resin tube do not contact any adja-
cent parts.
 After installing tubes, make su re there is no fuel leakage at
connections in the following steps.
- Apply fuel pressure to fuel li nes with turning ignition switch
“ON” (with engine stopped). Th en check for fuel leaks at con-
nections.
- Start engine and rev it up and check for fuel leaks at connec- tions.
 Use only a genuine NISSAN fuel filler cap as a replacement. If
an incorrect fuel filler cap is used, the “MIL” may come on.
 For servicing “Evaporative Emi ssion System” parts, refer to
EC-40, "
Description" (VQ35DE) or EC-618, "Description"
(VK45DE).
 For servicing“On Board Refueling Vapor Recovery (ORVR)”
parts, refer to EC-46, "
System Description" (VQ35DE) or EC-
624, "System Description" (VK45DE).
SMA803A
SBIA0504E
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FL-8
< SERVICE INFORMATION >
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
1. Turn ignition switch “ON” (with engine stopped), then check connections for leaks by applying fuel pres-
sure to fuel piping.
2. Start engine and let it idle and make sure there are no fuel leaks at the fuel system connections.
ComponentINFOID:0000000001327108
Disassembly and AssemblyINFOID:0000000001327109
CAUTION:
Sub fuel level sensor unit cannot be disassembled and should be replaced as a unit.
DISASSEMBLY
Remove fuel level sensor unit as follows.
1. Disconnect harness connector.
 Hold connector by fingers and pull it out, because there is no
stopper release tab.
2. Using suitable tool, pull up tabs points as shown in the figure (two points) to release the lock.
CAUTION:
Be careful not to damage it.
1. Fuel level sensor unit 2. Fuel filter and fuel pump assembly
PBIC1081E
PBIC1078E
PBIC1654E
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FUEL TANKFL-11
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10. Disconnect fuel filler hose, v
ent hose and EVAP hoses at fuel
tank side.
11. Support the lower part of fuel tank with transmission jack. CAUTION:
Support the position that fuel tank mounting bands do not
engage.
12. Remove fuel tank mounting bands.
13. Supporting with hands, descend transmission jack carefully, and remove fuel tank. CAUTION:
 Make sure that all connection points have been disconnected.
 Confirm there is no interference with vehicle.
14. Remove fuel filler tube protector and fuel filler tube, if necessary.
INSTALLATION
Note the following, and install in the reverse order of removal.
 Surely clamp fuel hoses and insert hose to the length below.
 Be sure hose clamp is not placed on swelled area of fuel tube.
 Tighten fuel hose clamp so that the distance between its lugs becomes to the following.
 To connect quick connector, refer to FL-4, "
Removal and Installation".
INSPECTION AFTER INSTALLATION
Use the following procedure to check for fuel leaks.
1. Turn ignition switch “ON” (with engine stopped), and check connections for leakage by applying fuel pres-
sure to fuel piping.
2. Start engine and rev it up and make sure there are no fuel leaks at the fuel system tube and hose connec-
tions.
PBIC1581E
PBIC0878E
Fuel filler hose : 35 mm (1.38 in)
The other hoses : 25 mm (0.98 in)
Fuel tank side : 8 - 12 mm (0.31 - 0.47 in)
Fuel filler tube side : 5.7 - 9.7 mm (0.224 - 0.382 in)
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GI-2
< SERVICE INFORMATION >
PRECAUTIONS
SERVICE INFORMATION
PRECAUTIONS
DescriptionINFOID:0000000001325649
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precaution for Supplemental Restraint S ystem (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000001612904
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty 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 w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SUPPLEMENTAL RESTRAINT SYS-
TEM” and “SEAT BELTS” of this Service Manual.
WARNING:
• To avoid rendering the SRS inopera tive, 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 NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the “SUPPLEMEN TAL RESTRAINT SYSTEM”.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000001612934
NOTE:
 This Procedure is applied only to models with In telligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).
 Remove and install all control units after disconnecting both battery cables with the ignition knob in the ″LOCK ″ position.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NVIS /IVIS, an electrically controlled steering lock
mechanism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.
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PRECAUTIONSGI-3
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Precaution for Procedur e without Cowl Top CoverINFOID:0000000001612933
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
General PrecautionINFOID:0000000001325654
 Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any flammable
materials. Special care should be taken when handling any flam-
mable or poisonous materials, such as gasoline, refrigerant gas,
etc. When working in a pit or ot her enclosed area, be sure to prop-
erly ventilate the area before working with hazardous materials.
Do not smoke while working on the vehicle.
 Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After jack-
ing up the vehicle, support the vehicle weight with safety stands at
the points designated for proper lifting before working on the vehi-
cle.
These operations should be done on a level surface.
 When removing a heavy component such as the engine or tran- saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.
 Before starting repairs which do not require battery power: Turn off ignition switch.
Disconnect the negative battery terminal.
 If the battery terminals are disconnected, recorded memory of radio and each control unit is erased.
 Battery posts, terminals and related accessories contain lead and
lead compounds. Wash hands after handling.
PIIB3706J
SGI285
SGI231
SEF289H
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PRECAUTIONSGI-5
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Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precaution for Fuel (Unlead ed Premium Gasoline Recommended)INFOID:0000000001325656
VQ35DE
INFINITI recommends the use of unleaded premium gasoli ne with an octane rating of at least 91 AKI (Anti-
Knock Index) number (Research octane number 96).
If unleaded premium gasoline is not available, you may use unleaded regular gasoline with an octane rating of
at least 87AKI number (Research octane number 91), but you may notice a decrease in performance.
CAUTION:
Do not use leaded gasoli ne. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unlead ed gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fu el other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Precaution for Fuel (Unleaded Premium Gasoline Required)INFOID:0000000001325657
VK45DE
Use unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research
octane number 96).
If unleaded premium gasoline is not available, unleaded r egular gasoline with an octane rating of at least 87
AKI number (Research octane number 91) can be us ed, but only under the following precautions:
 have the fuel tank filled only partially with unl eaded regular gasoline, and fill up with unleaded premium gas-
oline as soon as possible.
 avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance, the u se of unleaded premium gasoline is recommended.
CAUTION:
Do not use leaded gasoli ne. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unlead ed gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fu el other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Precaution for Multiport Fuel Inject ion System or Engine Control SystemINFOID:0000000001325658
 Before connecting or disconnecti ng any harness connector for the
multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
 Before disconnecting pressurized fuel line from fuel pump to injec- tors, be sure to release fuel pressure.
 Be careful not to jar components such as ECM and mass air flow sensor.
Precaution for HosesINFOID:0000000001325659
HOSE REMOVAL AND INSTALLATION
SGI787
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GI-10
< SERVICE INFORMATION >
HOW TO USE THIS MANUAL
3.Refer to Component Parts and Harness Connector Location for the Systems described in each
section for identifi cation/location of componen ts and harness connectors.
4. Refer to the Circuit Diagra m for quick pinpoint check.
If you need to check circuit continuity between harness connectors in more detail, such as when a
sub-harness is used, refer to Wiring Diagram in each individual section and Harness Layout in PG
section for identificatio n of harness connectors.
5. When checking circuit continuity, ignition switch should be OFF.
6. Before checking voltage at co nnectors, check battery voltage.
7. After accomplishing the Diagnost ic Procedures and Electrical Components Inspection, make sure
that all harness connectors ar e reconnected as they were.
HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES
1.Work and diagnostic procedure
Start to diagnose a problem using procedures indicated in enclosed test groups.
2. Questions and required results
Questions and required results are indicated in bold type in test group.
The meaning of are as follows:
3. Symbol used in illustration
Symbols included in illustrations refer to measur ements or procedures. Before diagnosing a problem,
familiarize yourself with each symbol. Refer to "Connector Symbols" in GI Section and "KEY TO SYM-
BOLS SIGNIFYING MEASUREME NTS OR PROCEDURES" below.
4. Action items
Next action for each test group is indicated based on result of each question. Test group number is shown
in the left upper portion of each test group.
HARNESS WIRE COLOR AND CONNECTOR NUMBER INDICATION
There are two types of harness wire color and connector number indication.
TYPE 1: Harness Wire Color and Connec tor Number are Shown in Illustration
SAIA0256E
a. Battery voltage → 11 - 14V or approximately 12V
b. Voltage : Approximately 0V → Less than 1V
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GI-18
< SERVICE INFORMATION >
HOW TO USE THIS MANUAL
 Letter designations next to test meter probe indicate harness (con-nector) wire color.
 Connector numbers in a single circle M33 indicate harness con-
nectors.
Component Indication
Connector numbers in a double circle F211 indicate component connectors.
Switch Positions
Switches are shown in wiring diagrams as if the vehicle is in the “normal” condition.
A vehicle is in the “normal” condition when:
 ignition switch is “OFF”,
 doors, hood and trunk lid/back door are closed,
 pedals are not depressed, and
 parking brake is released.
Detectable Lines and Non-Detectable Lines
In some wiring diagrams, two kinds of lines, r epresenting wires, with different weight are used.
AGI070
SGI860
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GI-48
< SERVICE INFORMATION >
TERMINOLOGY
TERMINOLOGY
SAE J1930 Terminology ListINFOID:0000000001325691
All emission related terms used in this publication in accordance with SAE J1930 are listed. Accordingly, new
terms, new acronyms/abbreviations and old te rms are listed in the following chart.
NEW TERMNEW 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 CONS ULT-II DLC for CONSULT-II Diagno stic 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
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GW-16
< SERVICE INFORMATION >
POWER WINDOW SYSTEM
 to power window main switch terminal 19
 to front power window switch (passenger side) terminal 10.
 through 15A fuse [No. 22, located in the fuse block (J/B)]
 to BCM terminal 42.
With ignition switch in ON or START position,
Power is supplied
 through 15A fuse [No. 1, located in the fuse block (J/B)]
 to BCM terminal 38, and
 trough BCM terminal 53
 to power window main switch terminal 10
 to rear power window switch (LH and RH) terminal 1.
Ground supplied
 to BCM terminal 49 and 52
 through body grounds M35, M45 and M85.
 to power window main switch terminal 17
 through body grounds M35, M45 and M85.
 to front power window switch (passenger side) terminal 11
 through body grounds M35, M45 and M85.
MANUAL OPERATION
Front Driver Side Door
WINDOW UP
When the front LH switch in the power window main switch is pressed in the up position,
Power is supplied
 through power window main switch terminal 8
 to front power window motor (driver side) terminal 2.
Ground is supplied
 to front power window motor (driver side) terminal 1
 through power window main switch terminal 11.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the front LH switch in the power window main switch is pressed in the down position
Power is supplied
 through power window main switch terminal 11
 to front power window motor (driver side) terminal 1.
Ground is supplied
 to front power window motor (driver side) terminal 2
 through power window main switch terminal 8.
Then, the motor lowers the window until the switch is released.
Front Passenger Side Door
FRONT POWER WINDOW SWITCH (P ASSENGER SIDE) OPERATION
WINDOW UP
When the front power window switch (pass enger side) is pressed in the up position
Power is supplied
 through front power window switch (passenger side) terminal 8
 to front power window motor (passenger side) terminal 2.
Ground is supplied
 to front power window motor (passenger side) terminal 1
 through front power window switch (passenger side) terminal 9.
Then, the motor raises the window until the switch is released.
WINDOW DOWN
When the front power window switch (passenger side) is pressed in the down position
Power is supplied
 through front power window switch (passenger side) terminal 9
 to front power window motor (passenger side) terminal 1.
Ground is supplied
 to front power window motor (passenger side) terminal 2
 through front power window switch (passenger side) terminal 8.
Then, the motor lowers the window until the switch is released.
POWER WINDOW MAIN SWITCH OPERATION
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