2007 INFINITI M35 coolant temperature

GI-52
TERMINOLOGY
Revision: 2007 April2007 M35/M45
TERMINOLOGYPFP:00011
SAE J1930 Terminology List NAS00088
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 TERMNEW ACRONYM /
ABBREVIATIONOLD 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 memoryEEPROM ***
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

IDX-4
ALPHABETICAL INDEX
Engine control system diagram ........... EC-30, EC-732
Engine coolant temperature sensor (ECTS) ... EC-214,
EC-226
, EC-926, EC-939
Engine coolant(VK45DE) .................................. CO-40
Engine coolant(VQ35DE) ................................. CO-11
Engine oil filter replacement ............................. MA-26
Engine oil filter replacement(VQ35DE) ............. MA-19
Engine oil precautions .......................................... GI-7
Engine oil replacement(VQ35DE) ..................... MA-18
Engine oil(VK45DE) ........................................... LU-27
Engine oil(VQ35DE) ............................................ LU-7
Engine removal(VK45DE) ............................... EM-247
Engine removal(VQ35DE) .............................. EM-114
Engine room cover ............................................ EM-15
Engine room cover(VK45DE) ......................... EM-173
ETC1 - Wiring diagram .................... EC-605, EC-1323
ETC2 - Wiring diagram .................... EC-600, EC-1318
ETC3 - Wiring diagram .................... EC-611, EC-1330
EVAP canister ...................................... EC-42, EC-744
EVAP canister purge volume control solenoid valve ....
EC-400
, EC-408, EC-1108, EC-1116
EVAP canister vent control valve ...... EC-415, EC-422,
EC-1123
, EC-1130
EVAP control system (small leak) diagnosis .. EC-391,
EC-453
, EC-1100, EC-1160
EVAP control system pressure sensor ........... EC-428,
EC-431
, EC-437, EC-1136, EC-1139, EC-1145
EVAP control system purge flow monitoring diagnosis
EC-386
, EC-1095
EVAP vapor lines inspection ................. MA-21, MA-28
Evaporative emission (EVAP) system . EC-39, EC-741
Evaporator ..................................................... ATC-167
Exhaust manifold(VK45DE) ............................ EM-183
Exhaust system ................................................... EX-3
Exhaust system inspection ..................... EX-3, MA-29
Expansion valve ............................................. ATC-168
F
F/FOG - Wiring diagram ................................... LT-198
F/PUMP - Wiring diagram ................ EC-676, EC-1396
Final drive pre-inspection .................. FFD-16, RFD-19
Final drive removal and installation .. FFD-13, RFD-16
Floor trim ............................................................. EI-50
Flow charts ......................................................... GI-28
Fluid temperature sensor (A/T) ........................ AT-135
Fluorescent leak detector .............................. ATC-169
FPCM - Wiring diagram ................... EC-512, EC-1227
Freeze frame data ............................... EC-60, EC-762
Front brake solenoid valve ................. AT-151, AT-153
Front bumper ...................................................... EI-11
Front combination lamp removal and installation LT-75
Front door ............................. BL-188, BL-194, GW-61
Front passenger air bag .................................. SRS-46
Front seat belt .................................................... SB-29
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-51
Front washer ...................................................... WW-4
Front wiper ......................................................... WW-4
FTS - Wiring diagram ....................................... AT-136
FTTS - Wiring diagram .... EC-333, EC-338, EC-1045,
EC-1050
Fuel cut control (at no load high engine speed) EC-34,
EC-736
Fuel filter replacement ......................................... FL-4
Fuel gauge ............................................................ DI-5
Fuel injection system (Bank 1) ......... EC-309, EC-320,
EC-1022
, EC-1033
Fuel injection system (Bank 2) ......... EC-309, EC-320,
EC-1022
, EC-1033
Fuel injector ................................................... EC-1389
Fuel injector and fuel tube(VK45DE) .............. EM-193
Fuel injector and fuel tube(VQ35DE) ................ EM-47
Fuel level sensor EC-462, EC-464, EC-466, EC-1169,
EC-1171
, EC-1173
Fuel line inspection .................................. FL-3, MA-25
Fuel line inspection(VQ35DE) .......................... MA-18
Fuel pressure check ........................... EC-88, EC-790
Fuel pressure release ......................... EC-88, EC-790
Fuel pump ....................................... EC-675, EC-1395
Fuel pump and gauge .......................................... FL-4
Fuel pump control module .............. EC-510, EC-1225
Fuel pump dropping resistor ........... EC-510, EC-1225
Fuel system ......................................................... FL-3
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor .......... EC-331, EC-337,
EC-1043
, EC-1049
Fuel tank vacuum relief valve ............. EC-42, EC-744
FUELB1 - Wiring diagram EC-311, EC-322, EC-1024,
EC-1035
FUELB2 - Wiring diagram EC-313, EC-324, EC-1026,
EC-1037
Fuse .................................................................. PG-17
Fuse and fusible link box ................................ PG-115
Fusible link ........................................................ PG-17
G
Gauges ................................................................. DI-5
Generator - See Alternator ................................ SC-20
Glass ........................ GW-11, GW-59, GW-61, GW-65
Grille - See Exterior ............................................ EI-16
Ground distribution ........................................... PG-45
H
H/LAMP - Wiring diagram ....................... LT-13
, LT-47
Harness connector .......................................... PG-104
Harness layout .................................................. PG-62
Hazard warning lamp ....................................... LT-212
Headlamp removal and installation .................... LT-75
Headlining - See Roof trim .................................. EI-52
Heated oxygen sensor 2 (bank 1) .... EC-274, EC-285,
EC-298
, EC-987, EC-998, EC-1011
Heated oxygen sensor 2 (bank 2) .... EC-274, EC-285,
EC-298
, EC-987, EC-998, EC-1011
Heated oxygen sensor 2 heater (bank 1) ....... EC-177,
EC-890
Heated oxygen sensor 2 heater (bank 2) ....... EC-177,

LAN-52
[CAN]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
CAN Communication Signal ChartNKS004FV
Refer to LAN-15, "How to Use CAN Communication Signal Chart" for how to use CAN communication signal
chart.
TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 5/TYPE 6/TYPE 7
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
Signals
ECM
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
RAS
*3
PSB
ADP
ABS
ICC
*4
IPDM-E
A/C compressor request signal TR
Accelerator pedal position signal T R R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request signal T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R R
Cooling fan speed request signal TR
Engine coolant temperature signal T R
Engine speed signal T R R R R R R
Engine status signal T R R R
Fuel consumption monitor signal T R R
ICC brake switch signal T R
ICC prohibition signal T R
ICC steering switch signal T R
Malfunctioning indicator lamp signal T R
Power generation command value signal TR
Stop lamp switch signalTR
RT
TR
Wide open throttle position signal T R
AFS OFF indicator signal T R
A/C switch signal R T
ACC signal T R R
Blower fan motor switch signal R T
Buzzer output signalTR
TR
RT
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal T R R R R R
Door unlock signal T R
Front fog light request signal T R R
Front wiper request signal T R R
High beam request signal T R R

TROUBLE DIAGNOSIS
LAN-55
[CAN]
C
D
E
F
G
H
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J
L
MA
B
LAN
Revision: 2007 April2007 M35/M45
TYPE 8/TYPE 9/TYPE 10/TYPE 11
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
Signals
ECM
4WD
AFS
*1
BCM
LANE
*2
TCM
AV
I-KEY
M&A
STRG
TPMS
PSB
ADP
ABS
ICC
*3
IPDM-E
A/C compressor request signal TR
Accelerator pedal position signal T R R R R
ASCD CRUISE lamp signal T R
ASCD OD cancel request signal T R
ASCD operation signal T R
ASCD SET lamp signal T R
Battery voltage signal T R
Closed throttle position signal T R R
Cooling fan speed request signal TR
Engine coolant temperature signal T R
Engine speed signal T R R R R R R
Engine status signal T R R R
Fuel consumption monitor signal T R R
ICC brake switch signal T R
ICC prohibition signal T R
ICC steering switch signal T R
Malfunctioning indicator lamp signal T R
Power generation command value signal TR
Snow mode switch signalTRR
RT
Stop lamp switch signalTR
RRT
TR
Wide open throttle position signal T R
AWD signal T R
AWD warning lamp signal T R
AFS OFF indicator signal T R
A/C switch signal R T
ACC signal T R R
Blower fan motor switch signal R T
Buzzer output signalTR
TR
RT
Day time running light request signal T R
Door lock/unlock status signal T R
Door switch signal T R R R R R
Door unlock signal T R
Front fog light request signal T R R
Front wiper request signal T R R
High beam request signal T R R

GENERAL MAINTENANCE
MA-5
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Revision: 2007 April2007 M35/M45
INSIDE THE VEHICLE
The maintenance items listed here should be checked on a regular basis, such as when performing periodic maintenance, cleaning the
vehicle, etc.
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).ItemReference page
Warning lamps and
chimesMake sure that all warning lamps and chimes are operating properly. —
Windshield wiper and
washerCheck that the wipers and washer operate properly and that the wipers do not
streak.—
Windshield defrosterCheck that the air comes out of the defroster outlets properly and in sufficient
quantity when operating the heater or air conditioner.—
Steering wheelCheck that it has the specified play. Be sure to check for changes in the steer-
ing condition, such as excessive play, hard steering or strange noises.
Free play: Less than 35 mm (1.38 in)—
SeatsCheck seat position controls such as seat adjusters, seatback recliner, etc. to
make sure they operate smoothly and that all latches lock securely in every
position. Check that the head restrains move up and down smoothly and that
the locks (if equipped) hold securely in all latched positions. Check that the
latches lock securely for folding-down rear seatbacks.—
Seat beltsCheck that all parts of the seat belt system (e.g. buckles, anchors, adjusters
and retractors) operate properly and smoothly, and are installed securely.
Check the belt webbing for cuts, fraying, wear or damage.MA-39
Accelerator pedalCheck the pedal for smooth operation and make sure the pedal does not catch
or require uneven effort. Keep the floor mats away from the pedal.—
BrakesCheck that the brake does not pull the vehicle to one side when applied. —
Brake pedal and
boosterCheck the pedal for smooth operation and make sure it has the proper dis-
tance under it when depressed fully. Check the brake booster function. Be
sure to keep the floor mats away from the pedal.BR-6
, BR-17
Parking brakeCheck 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-
nismCheck 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.—
ItemReference page
Windshield washer
fluidCheck that there is adequate fluid in the tank. —
Engine coolant levelCheck the coolant level when the engine is cold.MA-15
, MA-22
Radiator and hosesCheck 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 levelMake sure that the brake fluid level is between the “MAX” and “MIN” lines on
the reservoir.MA-35

BatteryCheck 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-4
Engine drive beltsMake sure that no belt is frayed, worn, cracked or oily.MA-14, MA-22
Engine oil levelCheck 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 linesCheck the level on the dipstick with the engine off. Check the lines for improper
attachment, leaks, cracks, etc.MA-37
Exhaust systemMake 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

MA-12
RECOMMENDED FLUIDS AND LUBRICANTS
Revision: 2007 April2007 M35/M45
RECOMMENDED FLUIDS AND LUBRICANTSPFP:00000
Fluids and Lubricants NLS0007E
*1: For further details, see “Engine Oil Recommendation”.
*2: Using automatic transmission fluid other than genuine NISSAN Matic J ATF will cause deterioration in driveability and auto-
matic transmission durability, and may damage the automatic transmission, which is not covered by the INFINITI new vehicle
limited warranty.
*3: For hot climates, viscosity SAE 90 is suitable for ambient temperatures above 0°C (32°F).
*4: Canada NISSAN Automatic Transmission Fluid or DEXRON
TM VI type ATF may also be used.
*5: Available in mainland U.S.A. through your INFINITI dealer.Capacity (Approximate)
Recommended Fluids/Lubricants
US measureImp mea-
sureLiter
Engine oil
Drain and
refillWith oil fil-
ter changeVQ35DE 5 qt 4-1/8 qt 4.7
Engine oil with API Certification Mark
*1
Viscosity SAE 5W-30 VK45DE 5-3/4 qt 4-7/8 qt 5.5
Without oil
filter
changeVQ35DE 4-5/8 qt 3-7/8 qt 4.4
VK45DE 5-1/8 qt 4-1/4 qt 4.9
Dry engine (Overhaul)VQ35DE 5-3/4 qt 4-3/4 qt 5.4
VK45DE 7-1/8 qt 5-7/8 qt 6.7
Cooling
systemWith res-
ervoir tankVQ35DE 9-3/8 qt 7-7/8 qt 8.9
Genuine NISSAN Long Life Antifreeze/ Coolant
or equivalent VK45DE 11 qt 9-1/8 qt 10.4
Reservoir
tankVQ35DE 7/8 qt 3/4 qt 0.8
VK45DE 7/8 qt 3/4 qt 0.8
Automatic transmission fluid 10-7/8 qt 9-1/8 qt 10.3
Genuine NISSAN Matic J ATF
*2
Differential gear oilFront 1-3/8 pt 1-1/8 pt 0.65 Genuine NISSAN Differential Oil Hypoid Super
GL-5 80W-90 or API GL-5, Viscosity SAE 80W-
90*3Rear 3 pt 2-1/2 pt 1.40
Transfer fluid 2-5/8 pt 2-1/4 pt 1.25Genuine NISSAN Matic D ATF (Continental U.S.
and Alaska) or Canada NISSAN Automatic
Transmission Fluid or equivalent (if available)
Power steering fluid (PSF) 1-1/8 qt 7/8 qt 1.0
Genuine NISSAN PSF or equivalent
*4
Brake fluid — — —Genuine NISSAN Super Heavy Duty Brake
Fluid*5 or equivalent
DOT 3 (US FMVSS No. 116)
Multi-purpose grease — — — NLGI No. 2 (Lithium soap base)
Windshield washer fluid — — —Genuine NISSAN Windshield Washer Concen-
trate Cleaner & Antifreeze or equivalent
Fuel recommendationVQ35DE — — —Refer to GI-6, "
Precautions for Fuel (Unleaded
Premium Gasoline Recommended) (VQ35DE
Engine Models)" .
VK45DE — — —Refer toGI-6, "
Precautions for Fuel (Unleaded
Premium Gasoline Required) (VK45DE Engine
Models)" .

ENGINE MAINTENANCE (VQ35DE ENGINE)
MA-17
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MA
Revision: 2007 April2007 M35/M45

When engine coolant overflows air relief hole on heater hose,
install air relief plug with new O-ring.
5. Install radiator cap.
6. Warm up engine until opening thermostat. Standard for warming-up time is approximately 10 minutes at
3,000 rpm.

Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat engine.
7. Stop the engine and cool down to less than approximately 50°C (122°F).

Cool down using fan to reduce the time.

If necessary, refill radiator up to filler neck with engine coolant.
8. Refill reservoir tank to “MAX” level line with engine coolant.
9. Repeat steps 4 through 7 two or more times with radiator cap installed until engine coolant level no longer
drops.
10. Check cooling system for leaks with engine running.
11. Warm up the engine, and check for sound of engine coolant flow while running engine from idle up to
3,000 rpm with heater temperature controller set at several position between “COOL” and “WARM”.

Sound may be noticeable at heater unit.
12. Repeat step 11 three times.
13. If sound is heard, bleed air from cooling system by repeating step 4 through 7 until engine coolant level no
longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed, and radiator drain plug.
CAUTION:
Be sure to clean drain plug and install with new O-ring.
If water drain plugs on cylinder block are removed, close and tighten them. Refer to EM-129,
"ASSEMBLY" .
2. Remove air relief plug on heater hose.
3. Fill radiator with water until water spills from the air relief hole, then close air relief plug. Fill radiator and
reservoir tank with water and reinstall radiator cap.Reservoir tank engine coolant capacity
(At “MAX” level)
: 0.8 (7/8 US qt, 3/4 lmp qt)
Air relief plug:
: 1.2 N·m (0.12 kg-m, 11 ft-lb)
SMA412B
Radiator drain plug:
: 1.2 N·m (0.12 kg-m, 11 in-lb)
SBIA0445E

MA-18
ENGINE MAINTENANCE (VQ35DE ENGINE)
Revision: 2007 April2007 M35/M45
4. Run the engine and warm it up to normal operating temperature.
5. Rev the engine two or three times under no-load.
6. Stop the engine and wait until it cools down.
7. Drain water from the system. Refer to CO-11, "
DRAINING ENGINE COOLANT" .
8. Repeat steps 1 through 7 until clear water begins to drain from radiator.
Checking Fuel LinesNLS0007K
Inspect fuel lines, filler cap and tank for improper attachment, leaks,
cracks, damage, loose connections, chafing or deterioration.
If necessary, repair or replace damaged parts.
Changing Air Cleaner FilterNLS0007L
VISCOUS PAPER TYPE
The viscous paper type filter does not need cleaning between replacement intervals. Refer to MA-7,
"PERIODIC MAINTENANCE" .
Changing Engine OilNLS0007M
WARNING:

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

Prolonged and repeated contact with used engine oil may cause skin cancer; try to avoid direct
skin contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand
cleaner as soon as possible.
1. Warm up the engine, and check for engine oil leakage from engine components. Refer to LU-7, "
ENGINE
OIL LEAKAGE" .
2. Stop the engine and wait for 10 minutes.
3. Loosen oil filler cap.
4. Remove mounting bolts, and then pull down the rear of front
engine under cover (1) and secure it using clip.
5. Remove drain plug (2) and then drain engine oil.
6. Install drain plug with new washer. Refer to EM-31, "
OIL PAN AND OIL STRAINER" .
CAUTION:
Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil.Air relief plug:
: 1.2 N·m (0.12 kg-m, 11 ft-lb)
SMA803A
KBIA3593J
Oil pan drain plug:
: 34.3 N·m (3.5 kg-m, 25 ft-lb)