Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Infiniti M45 M35 Y50 2006-2007 Approved M45_M35-Y50-2007 gi
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Revision: 2007 AprilGENERAL INFORMATION
A GENERAL INFORMATION
GI
GENERAL INFORMATION
SECTION GI B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . How to Read Wiring Diagrams .............................. 16 . F
Description .............................................................. 3
. CONNECTOR SYMBOLS .................................. 16 .
Precautions for Supplemental Restraint System SAMPLE/WIRING DIAGRAM - EXAMPL - ......... 17 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DESCRIPTION ................................................... 18 . G
SIONER" ................................................................. 3
. Abbreviations ......................................................... 24
.
Precautions Necessary for Steering Wheel Rotation SERVICE INFORMATION FOR ELECTRICAL INCI-
after Battery Disconnect .......................................... 3 . DENT ........................................................................ 25
.
H
OPERATION PROCEDURE ................................ 3 . How to Check Terminal .......................................... 25 .
Precautions for Procedures without Cowl Top Cover 4 ..... CONNECTOR AND TERMINAL PIN KIT ........... 25 .
General Precautions ............................................... 4 . HOW TO PROBE CONNECTORS ..................... 25 .
Precautions for Three Way Catalyst ........................ 5 . How to Perform Efficient Diagnosis for an Electrical I
Precautions for Fuel (Unleaded Premium Gasoline Incident .................................................................. 28
.
Recommended) (VQ35DE Engine Models) ............ 6 . WORK FLOW ..................................................... 28 .
Precautions for Fuel (Unleaded Premium Gasoline INCIDENT SIMULATION TESTS ....................... 28 . J
Required) (VK45DE Engine Models) ...................... 6 . CIRCUIT INSPECTION ...................................... 31 .
Precautions for Multiport Fuel Injection System or Control Units and Electrical Parts .......................... 36 .
Engine Control System ........................................... 6 . PRECAUTIONS ................................................. 36 .
K
Precautions for Hoses ............................................. 7 . CONSULT-II CHECKING SYSTEM ......................... 37 .
HOSE REMOVAL AND INSTALLATION .............. 7 . Description ............................................................. 37
.
HOSE CLAMPING ............................................... 7 . Function and System Application .......................... 37 .
Precautions for Engine Oils ..................................... 7 . Nickel Metal Hydride Battery Replacement ........... 38 . L
HEALTH PROTECTION PRECAUTIONS ............ 7 . Checking Equipment ............................................. 38 .
Precautions for the Environment ............................. 8 . CONSULT-II Start Procedure ................................. 38 .
Precautions for Air Conditioning .............................. 8 . CONSULT-II Data Link Connector (DLC) Circuit ... 39 M
HOW TO USE THIS MANUAL .................................. 9 . INSPECTION PROCEDURE ............................. 39 .
Description .............................................................. 9
. CIRCUIT DIAGRAM ........................................... 40 .
Terms ...................................................................... 9
. LIFTING POINT ........................................................ 41 .
Units ........................................................................ 9
. Commercial Service Tools ..................................... 41 .
Contents .................................................................. 9
. Garage Jack and Safety Stand and 2-Pole Lift ...... 41 .
Relation between Illustrations and Descriptions ... 10 Board-On Lift ......................................................... 42
.
Components ...........................................................11 . TOW TRUCK TOWING ............................................ 43 .
SYMBOLS ...........................................................11 . Tow Truck Towing .................................................. 43 .
How to Follow Trouble Diagnoses ......................... 12 . 2WD MODELS ................................................... 43 .
DESCRIPTION ................................................... 12 . AWD MODELS ................................................... 44 .
HOW TO FOLLOW TEST GROUPS IN TROU- Vehicle Recovery (Freeing a Stuck Vehicle) .......... 44 .
BLE DIAGNOSES .............................................. 12 . FRONT ............................................................... 44
.
HARNESS WIRE COLOR AND CONNECTOR REAR ................................................................. 44
.
NUMBER INDICATION ...................................... 13 . AUTOMATIC TRANSMISSION .......................... 45 .
KEY TO SYMBOLS SIGNIFYING MEASURE- TIGHTENING TORQUE OF STANDARD BOLTS ... 46
MENTS OR PROCEDURES .............................. 14 . Tightening Torque Table ........................................ 46 .
Revision: 2007 April GI-1 2007 M35/M45
RECOMMENDED CHEMICAL PRODUCTS AND ENGINE SERIAL NUMBER ................................50 .
SEALANTS .............................................................. 47
. AUTOMATIC TRANSMISSION NUMBER ..........50 .
Recommended Chemical Products and Sealants... 47 Dimensions ............................................................51
.
IDENTIFICATION INFORMATION ........................... 48 . Wheels & Tires .......................................................51
.
Model Variation ...................................................... 48
. TERMINOLOGY .......................................................52.
IDENTIFICATION NUMBER ............................... 49 . SAE J1930 Terminology List ..................................52 .
IDENTIFICATION PLATE ................................... 50 .
Revision: 2007 April GI-2 2007 M35/M45
PRECAUTIONS
PRECAUTIONS PFP:00001
GI
Description NAS0009A
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section. B
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" NAS0009B
C
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 D
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. E
WARNING:
q 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- F
formed by an authorized NISSAN/INFINITI dealer.
q 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
G
Bag Module, see the SRS section.
q 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. H
Precautions Necessary for Steering Wheel Rotation after Battery Disconnect
NAS000BI
I
NOTE:
q Before removing and installing any control units, first turn the push-button ignition switch to the LOCK
position, then disconnect both battery cables.
q After finishing work, confirm that all control unit connectors are connected properly, then re-connect both J
battery cables.
q Always use CONSULT-II to perform self-diagnosis as a part of each function inspection after finishing
work. If a DTC is detected, perform trouble diagnosis according to self-diagnosis results. K
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure L
below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. M
NOTE:
Supply power using jumper cables if battery is discharged.
2. Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-II.
Revision: 2007 April GI-3 2007 M35/M45
PRECAUTIONS
Precautions for Procedures without Cowl Top Cover NAS0009E
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
PIIB3706J
General Precautions NAS0009F
q 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.
SGI285
q 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.
q 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.
SGI231
q Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.
q If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.
q Battery posts, terminals and related accessories contain lead
and lead compounds. Wash hands after handling.
SEF289H
Revision: 2007 April GI-4 2007 M35/M45
PRECAUTIONS
q To prevent serious burns:
Avoid contact with hot metal parts. GI
Do not remove the radiator cap when the engine is hot.
q Dispose of or recycle drained oil or the solvent used for cleaning
parts in an appropriate manner. B
q 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
C
spray and possibly a fire.
q Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly. SGI233
D
q Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.
q Replace inner and outer races of tapered roller bearings and needle bearings as a set.
E
q Arrange the disassembled parts in accordance with their assembled locations and sequence.
q Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
F
q After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.
q Use only the fluids and lubricants specified in this manual.
q Use approved bonding agent, sealants or their equivalents when required. G
q Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs. H
q When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
I
J
PBIC0190E
q Before servicing the vehicle: K
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint. L
M
SGI234
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 Catalyst NAS0009G
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
q Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
q When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
Revision: 2007 April GI-5 2007 M35/M45
PRECAUTIONS
q 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) (VQ35DE
Engine Models) NAS0009H
INFINITY recommends the use of 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, you may use unleaded regular gasoline with an octane rating of
at least 87 AKI number (Research octane number 91), but you may notice a decrease in performance.
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.
Precautions for Fuel (Unleaded Premium Gasoline Required) (VK45DE Engine
Models) NAS0009I
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 regular gasoline with an octane rating of at least 87
AKI number (Research octane number 91) can be used, but only under the following precautions:
q Have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium
gasoline as soon as possible.
q Avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance, the use of unleaded premium gasoline is recommended.
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.
Precautions for Multiport Fuel Injection System or Engine Control System NAS0009J
q Before connecting or disconnecting 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.
q Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.
q Be careful not to jar components such as ECM and mass air
flow sensor.
SGI787
Revision: 2007 April GI-6 2007 M35/M45
PRECAUTIONS
Precautions for Hoses NAS0009K
HOSE REMOVAL AND INSTALLATION GI
q To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.
B
C
D
SMA019D
q To reinstall the rubber hose securely, make sure that hose inser- E
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.) F
G
H
SMA020D
HOSE CLAMPING
q If old rubber hose is re-used, install hose clamp in its original I
position (at the indentation where the old clamp was). If there is
a trace of tube bulging left on the old rubber hose, align rubber
hose at that position.
J
q Discard old clamps; replace with new ones.
K
SMA021D L
q After installing plate clamps, apply force to them in the direction
of the arrow, tightening rubber hose equally all around. M
SMA022D
Precautions for Engine Oils NAS0009L
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
q Avoid prolonged and repeated contact with oils, particularly used engine oils.
Revision: 2007 April GI-7 2007 M35/M45
PRECAUTIONS
q Wear protective clothing, including impervious gloves where practicable.
q Do not put oily rags in pockets.
q Avoid contaminating clothes, particularly underpants, with oil.
q Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu-
larly.
q First aid treatment should be obtained immediately for open cuts and wounds.
q Use barrier creams, applying them before each work period, to help the removal of oil from the skin.
q 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.
q Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.
q If skin disorders develop, obtain medical advice without delay.
q Where practical, degrease components prior to handling.
q 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 the Environment NAS000BG
In servicing the vehicle, it may be necessary to use, dispose of or recycle hazardous, flammable, or poisonous
materials, such as gasoline, refrigerant gas, solvents, oil, oil filter, air bag modules, seat belt pretensioners,
etc. Disposal, recycling, and transportation of any hazardous materials should be performed in compliance
with applicable federal, state and local laws and regulations.
Precautions for Air Conditioning NAS0009M
Use an approved refrigerant recovery unit any time the air conditioning system must be discharged. Refer to
ATC/MTC section "HFC-134a (R-134a) Service Procedure", "REFRIGERANT LINES" for specific instructions.
Revision: 2007 April GI-8 2007 M35/M45
HOW TO USE THIS MANUAL
HOW TO USE THIS MANUAL PFP:00008
GI
Description NAS0007G
This volume explains "Removal, Disassembly, Installation, Inspection and Adjustment" and "Trouble Diag-
noses". B
Terms NAS0007H
q The captions WARNING and CAUTION warn you of steps that must be followed to prevent personal
C
injury and/or damage to some part of the vehicle.
WARNING indicates the possibility of personal injury if instructions are not followed.
CAUTION indicates the possibility of component damage if instructions are not followed.
BOLD TYPED STATEMENTS except WARNING and CAUTION give you helpful information. D
Standard value:Tolerance at inspection and adjustment.
Limit value:The maximum or minimum limit value that should not be exceeded at inspection and adjust-
ment. E
Units NAS0007I
q The UNITS given in this manual are primarily expressed as the SI UNIT (International System of Unit),
and alternatively expressed in the metric system and in the yard/pound system. F
Also with regard to tightening torque of bolts and nuts, there are descriptions both about range and about
the standard tightening torque.
G
"Example"
Range
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