2004 INFINITI FX35 steering fluid

TROUBLE DIAGNOSIS - SPECIFICATION VALUE
EC-131
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Revision: 2004 November 2004 FX35/FX45
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionABS006L1
The specification (SP) value indicates the tolerance of the value that is displayed in “DATA MONITOR (SPEC)”
mode of CONSULT-II during normal operation of the Engine Control System. When the value in “DATA MONI-
TOR (SPEC)” mode is within the SP value, the Engine Control System is confirmed OK. When the value in
“DATA MONITOR (SPEC)” mode is NOT within the SP value, the Engine Control System may have one or
more malfunctions.
The SP value is used to detect malfunctions that may affect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:

B/FUEL SCHDL (The fuel injection pulse width programmed into ECM prior to any learned on board cor-
rection)

A/F ALPHA-B1/B2 (The mean value of air-fuel ratio feedback correction factor per cycle)

MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Testing ConditionABS006L2

Vehicle driven distance: More than 5,000 km (3,017 miles)

Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm2 , 14.25 - 15.12 psi)

Atmospheric temperature: 20 - 30°C (68 - 86°F)

Engine coolant temperature: 75 - 95°C (167 - 203°F)

Transmission: Warmed-up*1

Electrical load: Not applied*2

Engine speed: Idle
*1: After the engine is warmed up to normal operating temperature, drive vehicle until “FLUID TEMP SE” (A/T
fluid temperature sensor signal) indicates more than 60°C (140°F).
*2: Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.
Inspection ProcedureABS006L3
NOTE:
Perform “DATA MONITOR (SPEC)” mode in maximum scale display.
1. Perform EC-83, "
Basic Inspection" .
2. Confirm that the testing conditions indicated above are met.
3. Select “B/FUEL SCHDL”, “A/F ALPHA-B1”, “A/F ALPHA-B2”
and “MAS A/F SE-B1” in “DATA MONITOR (SPEC)” mode with
CONSULT-II.
4. Make sure that monitor items are within the SP value.
5. If NG, go to EC-132, "
Diagnostic Procedure" .
SEF601Z

BASIC SERVICE PROCEDURE
EC-699
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EC
Revision: 2004 November 2004 FX35/FX45
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine
is started, the headlamp will not be illuminated.

Steering wheel: Neutral (Straight-ahead position)

Vehicle speed: Stopped

Transmission: Warmed-up
For models with CONSULT-II, drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/T”
system indicates less than 0.9V.
For models without CONSULT-II, drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1. Perform EC-698, "Accelerator Pedal Released Position Learning" .
2. Perform EC-698, "
Throttle Valve Closed Position Learning" .
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
5. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
6. Touch “START” and wait 20 seconds.
7. Make sure that “CMPLT” is displayed on CONSULT-II screen. If
“CMPLT” is not displayed, Idle Air Volume Learning will not be
carried out successfully. In this case, find the cause of the inci-
dent by referring to the Diagnostic Procedure below.
8. Rev up the engine two or three times and make sure that idle
speed and ignition timing are within the specifications.
Without CONSULT-II
NOTE:

It is better to count the time accurately with a clock.

It is impossible to switch the diagnostic mode when an accelerator pedal position sensor circuit
has a malfunction.
1. Perform EC-698, "
Accelerator Pedal Released Position Learning" .
SEF217Z
SEF454Y
ITEM SPECIFICATION
Idle speed 650 ± 50 rpm (in P or N position)
Ignition timing 12 ± 5° BTDC (in P or N position)
MBIB0238E

EC-780
[VK45DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
Revision: 2004 November 2004 FX35/FX45
TROUBLE DIAGNOSIS - SPECIFICATION VALUEPFP:00031
DescriptionABS00C01
The specification (SP) value indicates the tolerance of the value that is displayed in “DATA MONITOR (SPEC)”
mode of CONSULT-II during normal operation of the Engine Control System. When the value in “DATA MONI-
TOR (SPEC)” mode is within the SP value, the Engine Control System is confirmed OK. When the value in
“DATA MONITOR (SPEC)” mode is NOT within the SP value, the Engine Control System may have one or
more malfunctions.
The SP value is used to detect malfunctions that may affect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:

B/FUEL SCHDL (The fuel injection pulse width programmed into ECM prior to any learned on board cor-
rection)

A/F ALPHA-B1/B2 (The mean value of air-fuel ratio feedback correction factor per cycle)

MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Testing ConditionABS00C02

Vehicle driven distance: More than 5,000 km (3,017 miles)

Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm2 , 14.25 - 15.12 psi)

Atmospheric temperature: 20 - 30°C (68 - 86°F)

Engine coolant temperature: 75 - 95°C (167 - 203°F)

Transmission: Warmed-up*1

Electrical load: Not applied*2

Engine speed: Idle
*1: After the engine is warmed up to normal operating temperature, drive vehicle until “FLUID TEMP SE” (A/T
fluid temperature sensor signal) indicates more than 60°C (140°F).
*2: Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.
Inspection ProcedureABS00C03
NOTE:
Perform “DATA MONITOR (SPEC)” mode in maximum scale display.
1. Perform EC-733, "
Basic Inspection" .
2. Confirm that the testing conditions indicated above are met.
3. Select “B/FUEL SCHDL”, “A/F ALPHA-B1”, “A/F ALPHA-B2”
and “MAS A/F SE-B1” in “DATA MONITOR (SPEC)” mode with
CONSULT-II.
4. Make sure that monitor items are within the SP value.
5. If NG, go to EC-781, "
Diagnostic Procedure" .
SEF601Z

DRIVE BELTS
EM-15
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Revision: 2004 November 2004 FX35/FX45
DRIVE BELTSPFP:02117
Checking Drive BeltsABS004TX
WARNING:
Be sure to perform when engine is stopped.
1. Inspect belts for cracks, fraying, wear and oil. If necessary,
replace.
2. Inspect drive belt deflection or tension at a point on belt midway
between pulleys.

Inspection should be done only when engine is cold, or over
30 minutes after engine is stopped.

Measure belt tension with belt tension gauge (Commercial
Service Tool: BT3373-F or equivalent) at points marked
shown in the figure.

When measuring deflection, apply 98 N (10 kg, 22 lb) at the
marked point.

Adjust if belt deflection exceeds the limit or if belt tension is not within specifications.
CAUTION:

When checking belt deflection or tension immediately after installation, first adjust it to the
specified value. Then, after turning crankshaft two turns or more, re-adjust to the specified
value to avoid variation in deflection between pulleys.

Tighten idler pulley lock nut by hand and measure deflection or tension without looseness.
Belt Deflection and Tension
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on belt.
Tension AdjustmentABS004TY
CAUTION:

When belt is replaced with a new one, adjust it to value for “New belt” to accommodate for insuffi-
cient adaptability with pulley grooves.

When deflection or tension of belt being used exceeds “Limit”, adjust it to value for “After adjust-
ment of used belt”.

When checking belt deflection or tension immediately after installation, first adjust it to the speci-
fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to
avoid variation in deflection between pulleys.

When installing belt, make sure that it is correctly engaged with pulley grooves.

Keep engine oil, working fluid and engine coolant away from belt and pulley grooves.

Do not twist or bend belt excessively.
KBIA1731J
ItemsDeflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt
New beltUsed belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt7 (0.28)4 - 5
(0.16 - 0.20)3.5 - 4.5
(0.138 - 0.177)294 (30, 66)730 - 818
(74.5 - 83.5,
164 - 184)838 - 926
(85.5 - 94.5,
188 - 208)
Air conditioner
compressor belt12 (0.47)9 - 10
(0.35 - 0.39)8 - 9
(0.31 - 0.35)196 (20, 44)348 - 436
(35.5 - 44.5,
78 - 98)470 - 559
( 4 8 - 5 7 ,
106 - 126)
Applied pushing
force98 N (10 kg, 22 lb) —
PortionBelt tightening method for adjustment
Alternator and power steering oil pump belt Adjusting bolt on idler pulley
Air conditioner compressor belt Adjusting bolt on idler pulley

OIL PAN AND OIL STRAINER
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Revision: 2004 November 2004 FX35/FX45
CAUTION:
Perform when engine is cold.
7. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
8. Remove air hose from air duct to mass air flow sensor side and electric throttle control actuator side.
Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
9. Removal engine rear lower slinger, and install engine rear slinger to sling engine assembly for positioning.
Refer to EM-8, "
Special Service Tools" .
10. Remove front suspension member. Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
11. Remove drive belt for alternator and power steering pump and A/C compressor. Refer to EM-15, "
DRIVE
BELTS" .
12. Remove alternator stay. Refer to SC-23, "
CHARGING SYSTEM" .
13. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
14. Remove alternator and power steering pump and A/C compressor idler pulley and bracket assembly.
Refer to EM-15, "
DRIVE BELTS" .
15. Disconnect A/T fluid cooler hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-14, "
OIL
COOLER" .
16. Disconnect A/T fluid cooler tube.
17. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensors in a location where they are exposed to magnetism.
18. Remove oil filter, as necessary. Refer to LU-10, "
OIL FILTER" .
19. Remove oil cooler, as necessary. Refer to LU-14, "
OIL COOLER" .
20. Remove oil pan (lower) as the following:
a. Loosen bolts in reverse order as shown in the figure to remove.
b. Insert seal cutter (SST) between oil pan (upper) and oil pan
(lower).
c. Slide seal cutter by tapping on the side of tool with hammer.
Remove oil pan (lower).
CAUTION:

Be careful not to damage the mating surface.

Do not insert flat-bladed screwdriver, this will damage the
mating surface.
21. Remove oil strainer.Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
PBIC0782E
SEM960F

OIL PAN AND OIL STRAINER
EM-37
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Revision: 2004 November 2004 FX35/FX45
8. Remove air hose from air duct to mass air flow sensor side and electric throttle control actuator side.
Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
9. Remove drive belt for alternator and power steering pump and A/C compressor. Refer to EM-15, "
DRIVE
BELTS" .
10. Remove front drive shaft (LH and RH) and side shaft. Refer to FA X - 1 2 , "
FRONT DRIVE SHAFT" .
11. Remove side shaft. Refer to FFD-10, "
FRONT FINAL DRIVE ASSEMBLY" .
12. Removal engine rear lower slinger, and install engine rear slinger to sling engine assembly for positioning.
Refer to EM-8, "
Special Service Tools" .
13. Remove front suspension member. Refer to Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
14. Remove engine mounting bracket, engine mounting bracket (lower) and insulator. Refer to EM-110,
"ENGINE ASSEMBLY" .
15. Remove front propeller shaft. Refer to PR-4, "
FRONT PROPELLER SHAFT" .
16. Remove oil filter and oil filter bracket. Refer to LU-12, "
OIL FILTER BRACKET (AWD)" .
17. Remove alternator stay. Refer to SC-23, "
CHARGING SYSTEM" .
18. Remove alternator and power steering pump and A/C compressor idler pulley and bracket. Refer to EM-
15, "DRIVE BELTS" .
19. Disconnect A/T fluid cooler hoses, and remove oil cooler water pipe mounting bolt. Refer to LU-14, "
OIL
COOLER" .
20. Disconnect A/T fluid cooler tube.
21. Remove front final drive assembly. Refer to FFD-10, "
FRONT FINAL DRIVE ASSEMBLY" .
22. Remove starter motor. Refer to SC-10, "
STARTING SYSTEM" .
23. Remove crankshaft position sensor (POS).
CAUTION:

Handle carefully to avoid dropping and shocks.

Do not disassemble.

Do not allow metal powder to adhere to magnetic part at sensor tip.

Do not place sensors in a location where they are exposed to magnetism.
24. Remove oil pan (lower) as the following:
a. Loosen bolts in reverse order as shown in the figure to remove.
b. Insert seal cutter (SST) between oil pan (upper) and oil pan
(lower).
c. Slide seal cutter by tapping on the side of tool with hammer.
Remove oil pan (lower).
CAUTION:

Be careful not to damage the mating surface.

Do not insert flat-bladed screwdriver, this will damage the
mating surface.Slinger bolts:
: 28.0 N·m (2.9 kg-m, 21 ft-lb)
PBIC0782E
SEM960F

ENGINE ASSEMBLY
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Revision: 2004 November 2004 FX35/FX45
REMOVAL
Outline
At first, remove engine and transmission assembly with suspension member downward. Then separate
engine from transmission.
Preparation
1. Release fuel pressure. Refer to EC-51, "FUEL PRESSURE RELEASE" .
2. Disconnect both battery terminals.
3. Remove engine cover (Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" ), battery cover and LH/RH
sides front tire.
4. Remove front and rear engine undercover and front cross bar with power tool.
5. Drain engine coolant from radiator drain plug. Refer to CO-11, "
Changing Engine Coolant" .
6. Remove cowl top cover RH. Refer to EI-24, "
COWL TOP" .
7. Remove air duct and air cleaner case assembly. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
8. Remove radiator upper and lower hoses. Refer to CO-14, "
RADIATOR" .
Engine Room
1. Disconnect heater hose from vehicle-side, and fit a plug onto hose end to prevent engine coolant leak.
2. Disconnect grounding wire (between vehicle to left bank cylinder head).
3. Disconnect battery positive cable at vehicle side and temporarily fasten it on engine.
4. Disconnect engine room harness connectors shown in the fig-
ure.
5. Disconnect A/C piping from A/C compressor, and temporarily fasten it on vehicle with a rope.
6. Disconnect two body ground cables.
7. Disconnect brake booster vacuum hose.
8. Disconnect fuel feed hose and EVAP hose.
CAUTION:
Fit plugs onto disconnected hoses to prevent fuel leak.
9. Remove power steering oil pump reservoir tank and piping from vehicle, and temporarily secure them on
engine. Refer to PS-31, "
POWER STEERING OIL PUMP" .
CAUTION:
When temporarily securing, keep them upright to avoid a fluid leak.
Passenger Room Side
1. Follow procedure below to disconnect engine room harness connectors at passenger room side, and tem-
porarily secure them on engine.
SBIA0472E

EM-112
[VQ35DE]
ENGINE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
a. Remove passenger-side kicking plate, dash side finisher, and
glove box. Refer to EI-37, "
BODY SIDE TRIM" and IP-10,
"INSTRUMENT PANEL ASSEMBLY" .
b. Disconnect engine room harness connectors at unit sides ECM
and other.
c. Disengage intermediate fixing point. Pull out engine room har-
nesses to engine room side, and temporarily secure them on
engine.
CAUTION:

When pulling out harnesses, take care not to damage
harnesses and connectors.

After temporarily securing, cover connectors with vinyl or similar material to protect against for-
eign material adhesion.
Vehicle Underbody
1. Remove A/T fluid cooler hoses and power steering oil pump oil cooler hoses.
2. Remove exhaust front tube. Refer to EX-3, "
EXHAUST SYSTEM" .
3. Disconnect steering lower joint, and release steering shaft. Refer to PS-12, "
STEERING COLUMN" .
4. Separate transmission and propeller shaft. Refer to PR-6, "
REAR PROPELLER SHAFT" .
5. Disengage shift control linkage at selector lever side. Then, temporarily secure it on transmission, so that
it does not sag.
6. Remove rear plate cover from upper oil pan. Then, remove bolts fixing drive plate to torque converter.
7. Remove bolts fixing transmission to lower rear side of upper oil pan.
8. Remove front stabilizer. Refer to FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
9. Remove LH and RH sides tie-rod ends from steering knuckle. Refer to FSU-6, "
FRONT SUSPENSION
ASSEMBLY" .
10. Remove lower ends of LH and RH sides struts from lower arms. Refer to FSU-6, "
FRONT SUSPENSION
ASSEMBLY" .
11. Remove LH and RH sides lower arms from suspension member. Refer to FSU-6, "
FRONT SUSPENSION
ASSEMBLY" .
Removal Work
1. Use a manual lift table caddy (commercial service tool) or equiv-
alently rigid tool such as a transmission jack. Securely support
bottom of suspension member and transmission.
CAUTION:
Put a piece of wood or something similar as the supporting
surface, secure a completely stable condition.
2. Remove rear member mounting bolt.
3. Remove suspension member mounting bolt and nut. Refer to
FSU-6, "
FRONT SUSPENSION ASSEMBLY" .
4. Carefully lower jack to remove engine, transmission, and sus-
pension member assembly. When performing work, observe the
following:
CAUTION:

Confirm there is no interference with vehicle.

Make sure all connection points have been disconnected.

Keep in mind the center of vehicle gravity changes. If necessary, use jack(s) to support vehicle
at rear jacking point(s) to prevent it from falling it off lift.
SBIA0473E
PBIC0804E