2007 INFINITI FX35 check engine

FSU-2
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
PRECAUTIONSPFP:00001
CautionNES000FK

When installing rubber bushings, final tightening must be carried out under unladen conditions with tires
on ground. Oil will shorten the life of rubber bushings. Be sure to wipe off any spilled oil.

Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.

After servicing suspension parts, be sure to check wheel alignment.

Caulking nuts are not reusable. Always use new ones when installing. Since new caulking nuts are pre-
oiled, tighten as they are.

Avoid burden to front cross bar.

FSU-6
FRONT SUSPENSION ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
FRONT SUSPENSION ASSEMBLYPFP:54010
On-Vehicle Inspection and ServiceNES000I3
Make sure the mounting conditions (looseness, back lash) of each component and component conditions
(wear, damage) are normal.
INSPECTION LOWER BALL JOINT END PLAY
1. Set front wheels in a straight-ahead position. Do not depress brake pedal.
2. Place an iron bar or similar tool between transverse link and steering knuckle.
3. Measure axial end play by prying it up and down.
CAUTION:
Be careful not to damage ball joint boot.
STRUT INSPECTION

Check strut for oil leakage, damage and replace if there are. Refer to FSU-11, "COIL SPRING AND
STRUT" .
Wheel Alignment InspectionNES000I4
DESCRIPTION

Measure wheel alignment under unladen conditions.
NOTE:
Unladen conditions mean that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and
mats are designated positions.
PRELIMINARY CHECK

Check tires for improper air pressure and wear.

Check road wheels for runout.

Check wheel bearing axial end play.

Check ball joint axial end play of compression rod, upper link, and steering knuckle

Check shock absorber operation.

Check each mounting part of axle and suspension for looseness and deformation.

Check each link, rod and member for cracks, deformation and other damage.

Check vehicle posture.
GENERAL INFORMATION AND RECOMMENDATIONS

A four-wheel thrust alignment should be performed.
–This type of alignment is recommended for any NISSAN/INFINITI vehicle.
–The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel is
centered.
–The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
–The rack should be checked to ensure that it is level.

Make sure the machine is properly calibrated.
–Your alignment equipment should be regularly calibrated in order to give correct information.
–Check with the manufacturer of your specific equipment for their recommended Service/Calibration
Schedule. Axial end play : 0 mm (0 in)

FSU-10
FRONT SUSPENSION ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
16. Remove stabilizer connecting rod upper nut with power tool,
separate stabilizer connecting rod and strut assembly.
17. Remove mounting nuts between engine mounting insulator and front suspension member.
18. Remove mounting bolts which are at the back of transverse link (mounting part with body) with power tool, separate transverse
link.
19. Remove mounting nuts between front suspension member and body with power tool.
20. Move jack down slowly to remove front suspension member, transverse link, stabilizer bar, drive shaft (For AWD models) and
steering knuckle from vehicle as a unit.
21. Remove transverse link from steering knuckle. Refer to FSU-14,
"TRANSVERSE LINK" .
INSTALLATION

Refer to FSU-8, "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

After removing/installing or replacing suspension components and steering components, check wheel
alignment. Refer to FSU-6, "
Wheel Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .

Check the following item after service.
–Installation condition of wheel sensor harness.
SEIA0330E
SEIA0331E

FRONT SUSPENSION MEMBER FSU-17
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Revision: 2006 July 2007 FX35/FX45
FRONT SUSPENSION MEMBERPFP:54401
Removal and InstallationNES000FW
REMOVAL
1. Set engine slinger to engine, then suspend an engine.
2. Remove tires from vehicle with power tool.
3. Remove undercover with power tool.
4. Remove front cross bar.
5. Remove mounting bolts which are at the back of transverse link (mounting part with body) with power tool, separate transverse
link.
6. Remove mounting bolts which are at the front of transverse link with power tool, separate transverse link.
7. Remove steering hydraulic piping bracket from front suspension member. Refer to PS-41, "
HYDRAULIC LINE" .
8. Remove mounting bolts of steering gear with power tool, then hang steering gear on vehicle. Refer to PS-18, "
POWER
STEERING GEAR AND LINKAGE" .
9. Remove stabilizer bar from front suspension member and stabi- lizer connecting rod lower side with power tool.
10. Remove mounting nuts between engine mounting insulator and front suspension member.
11. Remove mounting nuts between front suspension member and body with power tool.
12. Move jack down slowly to remove front suspension member from vehicle.
INSPECTION AFTER REMOVAL
Check front suspension member for deformation, cracks, or any other damage. Replace if necessary.
INSTALLATION

Refer to FSU-8, "Removal and Installation" for tightening torque. Install in the reverse order of removal.
NOTE:
Refer to component parts location and do not reuse non-reusable parts.

After removing/installing or replacing suspension components and steering components, check wheel
alignment. Refer to FSU-6, "
Wheel Alignment Inspection" .

After adjusting wheel alignment, adjust neutral position of steering angle sensor. Refer to BRC-6, "Adjust-
ment of Steering Angle Sensor Neutral Position" .
SEIA0331E

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION
Revision: 2006 July
2007 FX35/FX45
GENERAL INFORMATION
PRECAUTIONS .......................................................... 3
Description .......................................................... ..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS) (If
Equipped) ............................................................ ..... 3
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect ..................................... ..... 4
OPERATION PROCEDURE ............................ ..... 4
Precautions for Procedures without Cowl Top Cover ..... 4
General Precautions ........................................... ..... 4
Precautions for Three Way Catalyst .................... ..... 6
Precautions for Fuel (Unleaded Premium Gasoline
Recommended) ................................................... ..... 6
Precautions for Fuel (Unleaded Premium Gasoline
Required) ............................................................ ..... 7
Precautions for Multiport Fuel Injection System or
Engine Control System ....................................... ..... 7
Precautions for Hoses ......................................... ..... 7
HOSE REMOVAL AND INSTALLATION .......... ..... 7
HOSE CLAMPING ........................................... ..... 8
Precautions for Engine Oils ................................. ..... 8
HEALTH PROTECTION PRECAUTIONS ........ ..... 8
Precautions for the Environment ......................... ..... 8
Precautions for Air Conditioning .......................... ..... 9
HOW TO USE THIS MANUAL .............................. ... 10
Description .......................................................... ... 10
Terms .................................................................. ... 10
Units .................................................................... ... 10
Contents .............................................................. ... 10
Components ........................................................ .... 11
SYMBOLS ........................................................ .... 11
How to Follow Trouble Diagnoses ....................... ... 12
DESCRIPTION ................................................. ... 12
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ............................................ ... 12
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION .................................... ... 13 KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................ ... 14
How to Read Wiring Diagrams ............................ ... 16
CONNECTOR SYMBOLS ................................ ... 16
SAMPLE/WIRING DIAGRAM - EXAMPL - ....... ... 17
DESCRIPTION ................................................. ... 18
Abbreviations ....................................................... ... 24
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ...................................................................... ... 25
How to Check Terminal ........................................ ... 25
CONNECTOR AND TERMINAL PIN KIT ......... ... 25
HOW TO PROBE CONNECTORS ................... ... 25
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................ ... 28
WORK FLOW ................................................... ... 28
INCIDENT SIMULATION TESTS ..................... ... 28
CIRCUIT INSPECTION .................................... ... 31
Control Units and Electrical Parts ........................ ... 36
WORK FLOW ................................................... ... 28
CONSULT-II CHECKING SYSTEM ....................... ... 37
Description ........................................................... ... 37
Function and System Application ........................ ... 37
Nickel Metal Hydride Battery Replacement ......... ... 38
Checking Equipment ........................................... ... 38
CONSULT-II Start Procedure ............................... ... 38
CONSULT-II Data Link Connector (DLC) Circuit . ... 39
INSPECTION PROCEDURE ........................... ... 39
CIRCUIT DIAGRAM ......................................... ... 40
LIFTING POINT ...................................................... ... 41
Commercial Service Tools ................................... ... 41
Garage Jack and Safety Stand ............................ ... 41
2-Pole Lift ............................................................ ... 42
Board-On Lift ....................................................... ... 43
TOW TRUCK TOWING .......................................... ... 44
Tow Truck Towing ................................................ ... 44
2WD MODELS ................................................. ... 44
AWD MODELS ................................................. ... 45
Vehicle Recovery (Freeing a Stuck Vehicle) ........ ... 45
AUTOMATIC TRANSMISSION ........................ ... 46

GI-4
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectNAS0005Y
NOTE:

This Procedure is applied only to models with Intelligent 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-II 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 power 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-II.
Precautions for Procedures without Cowl Top CoverNAS0005Z
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
General PrecautionsNAS00060

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 other enclosed area, be sure to
properly ventilate the area before working with hazardous mate-
rials.
Do not smoke while working on the vehicle.
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PRECAUTIONS GI-5
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Revision: 2006 July 2007 FX35/FX45

Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After
jacking up the vehicle, support the vehicle weight with safety
stands at the points designated for proper lifting before working
on the vehicle.
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.

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.
SGI231
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PBIC0190E

GI-6
PRECAUTIONS
Revision: 2006 July 2007 FX35/FX45

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.

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.
SGI234