2004 INFINITI FX35 Engine

FRONT FOG LAMP
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Revision: 2004 November 2004 FX35/FX45
FRONT FOG LAMPPFP:26150
Component Parts and Harness Connector LocationAKS007O5
System DescriptionAKS007CI
Control of the fog lamps is dependent upon the position of the combination switch (lighting switch). The light-
ing switch must be in the 2ND position or AUTO position (LOW beam is ON) for front fog lamp operation.
When the lighting switch is placed in the fog lamp position the BCM (body control module) receives input sig-
nal requesting the fog lamps to illuminate. When the headlamps are illuminated, this input signal is communi-
cated to the IPDM E/R (intelligent power distribution module engine room) across the CAN communication
lines. The central processing unit of the IPDM E/R controls the front fog lamp relay coil. When activated, this
relay directs power to the front fog lamps.
OUTLINE
Power is supplied at all times

to ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]

through 15A fuse [No. 88, located in IPDM E/R (intelligent power distribution module engine room)]

to front fog lamp relay [located in IPDM E/R (intelligent power distribution module engine room)]

through 15A fuse [No. 78, located in IPDM E/R (intelligent power distribution module engine room)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]

through 10A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].
Power is also supplied at all times

through 50A fusible link (letter M, located in the fuse and fusible link block)

to BCM (body control module) terminal 55

through 15A fuse [No. 22, located in fuse block (J/B)]

to BCM (body control module) terminal 42.
When the ignition switch is in ON or START position, power is supplied
PKIA5269E

LT-78
FRONT FOG LAMP
Revision: 2004 November 2004 FX35/FX45

to ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM (body control module) terminal 38.
When the ignition switch is in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM (body control module) terminal 11.
Ground is supplied

to BCM (body control module) terminals 49 and 52

through grounds M35, M45 and M85

to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60

through grounds E21, E50 and E51.
Fog Lamp Operation
The fog lamp switch is built into the combination switch. The lighting switch must be in the 2ND position or
AUTO position (LOW beam is ON) and the fog lamp switch must be ON for fog lamp operation.
With the fog lamp switch in the ON position, the CPU of the IPDM E/R grounds the coil side of the fog lamp
relay. The fog lamp relay then directs power

through IPDM E/R terminal 37

to front fog lamp LH terminal 1

through IPDM E/R terminal 36

to front fog lamp RH terminal 1.
Ground is supplied

to front fog lamp LH terminal 2

through grounds E21, E50 and E51, and

to front fog lamp RH terminal 2

through grounds E21, E50 and E51.
With power and grounds supplied, the front fog lamps illuminate.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 2ND position (ON), the fog lamp switch is ON, and the
ignition switch is turned from ON or ACC to OFF, the battery saver control feature is activated.
Under this condition, the fog lamps (and headlamps) remain illuminated for 5 minutes, then the fog lamps (and
headlamps) are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionAKS007CJ
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitAKS0080V
Refer to LAN-6, "CAN Communication Unit" .

FRONT FOG LAMP
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Revision: 2004 November 2004 FX35/FX45
Aiming AdjustmentAKS007CT
The fog lamp is a semi-sealed beam type which uses a replaceable halogen bulb. Before performing aiming
adjustment, make sure of the following.

Keep all tires inflated to correct pressure.

Place vehicle on level ground.

See that vehicle is unloaded (except for full levels of coolant, engine oil and fuel, and spare tire, jack, and
tools). Have the driver or equivalent weight placed in driver seat.
Adjust aiming in the vertical direction by turning the adjusting screw.
1. Set the distance between the screen and the center of the fog
lamp lens as shown at left.
2. Turn front fog lamps ON.
3. Adjust front fog lamps using adjusting screw so that the top edge
of the high intensity zone is 100 mm (4 in) below the height of
the fog lamp centers as shown at left.

When performing adjustment, if necessary, cover the head-
lamps and opposite fog lamp.
SKIA5557E
PKIA8619E
PKIA7887E

PARKING, LICENSE PLATE AND TAIL LAMPS
LT-127
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Revision: 2004 November 2004 FX35/FX45
PARKING, LICENSE PLATE AND TAIL LAMPSPFP:26550
Component Parts and Harness Connector LocationAKS007O7
System DescriptionAKS007DT
Control of the parking, license plate, and tail lamp operation is dependent upon the position of the lighting
switch (combination switch). When the lighting switch is placed in the 1ST position, the BCM (body control
module) receives input signal requesting the parking, license plate, side marker and tail lamps to illuminate.
This input signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across
the CAN communication lines. The CPU (central processing unit) of the IPDM E/R (intelligent power distribu-
tion module engine room) controls the tail lamp relay coil. This relay, when energized, directs power to the
parking, license plate, side marker and tail lamps, which then illuminate.
The current that flows by Rear combination lamp unit is controlled, and a tail lamp (LED) is made to turn on.
Power is supplied at all times

through 10A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)]

to tail lamp relay [located in IPDM E/R (intelligent power distribution module engine room)] and

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].

through 15A fuse [No. 78, located in IPDM E/R (intelligent power distribution module engine room)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].
Power is also supplied at all times

through 50A fusible link (letter M, located in the fuse and fusible link block)

to BCM (body control module) terminal 55

through 15A fuse [No. 22, located in fuse block (J/B)]

to BCM (body control module) terminal 42

through 10A fuse [No. 20, located in fuse block (J/B)]

to rear combination lamp control unit terminal 1.
With the ignition switch in the ON or START position, power is supplied
PKIA5272E

LT-128
PARKING, LICENSE PLATE AND TAIL LAMPS
Revision: 2004 November 2004 FX35/FX45

through 15A fuse [No. 1, located in fuse block (J/B)]

to BCM (body control module) terminal 38

through ignition relay [located in IPDM E/R (intelligent power distribution module engine room)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine
room)].
With the ignition switch in the ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM (body control module) terminal 11.
Ground is supplied

to BCM (body control module) terminals 49 and 52

through grounds M35, M45 and M85

to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60

through grounds E21, E50 and E51

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51.
OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the parking, license plate, side marker and tail lamps to illuminate. This input signal is
communicated to the IPDM E/R across the CAN communication lines. The CPU in the IPDM E/R controls the
tail lamp relay coil, which when energized, directs power

through IPDM E/R terminal 22

to front side marker lamp LH terminal 1

to clearance lamp LH terminal 2

to license plate lamp LH terminal 1

to rear combination lamp LH terminal 1

to rear combination lamp control unit terminal 2

to front side marker lamp RH terminal 1

to clearance lamp RH terminal 2

to license plate lamp RH terminal 1

to rear combination lamp RH terminal 1.
Ground is supplied at all times

to front side marker lamp LH terminal 2

through grounds E21, E50 and E51

to clearance lamp LH terminal 3

through grounds E21, E50 and E51

to license plate lamp LH terminal 2

through grounds B15 and B45

to rear combination lamp LH terminal 2

through grounds B15 and B45

to front side marker lamp RH terminal 2

through grounds E21, E50 and E51

to clearance lamp RH terminal 3

through grounds E21, E50 and E51

to license plate lamp RH terminal 2

through grounds B15 and B45

to rear combination lamp RH terminal 2

through grounds B203 and B210

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51.

ILLUMINATION
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Revision: 2004 November 2004 FX35/FX45
ILLUMINATIONPFP:27545
System DescriptionAKS007EI
Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination
switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated)
the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input
signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN
communication lines. The CPU (central processing unit) of IPDM E/R (intelligent power distribution module
engine room) controls the tail lamp relay coil. This relay, when energized, directs power to the illumination
lamps, which then illuminate.
Power is supplied at all times

to tail lamp relay [located in IPDM E/R (intelligent power distribution module engine room)]

through 10A fuse [No. 71, located in IPDM E/R (intelligent power distribution module engine room)].
Power is also supplied at all times

to BCM (body control module) terminal 55

through 50A fusible link (letter M, located in fuse and fusible link block)

to BCM (body control module) terminal 42

through 15A fuse [No. 22, located in fuse block (J/B)]

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]

through 15A fuse [No. 78, located in IPDM E/R (intelligent power distribution module engine room)]

to unified meter and A/C amp. terminal 21 and

to combination meter terminal 8

through 10A fuse [No. 19, located in fuse block (J/B)].
With the ignition switch in the ON or START position, power is supplied

to BCM (body control module) terminal 38

through 15A fuse [No. 1, located in fuse block (J/B)]

to unified meter and A/C amp. terminal 22

through 10A fuse [No. 12, located in fuse block (J/B)]

to ignition relay in the IPDM E/R (intelligent power distribution module engine room)

from ignition switch

to combination meter terminal 7

through 10A fuse [No. 14, located in fuse block (J/B)].
With the ignition switch in the ACC or ON position, power is supplied

to BCM (body control module) terminal 11

through 10A fuse [No. 6, located in fuse block (J/B)].
Ground is supplied

to BCM (body control module) terminals 49 and 52

to unified meter and A/C amp. terminals 29 and 30, and

to combination meter terminals 5, 6, and 15

through grounds M35, M45, and M85

to IPDM E/R (intelligent power distribution module engine room) terminals 38 and 60

through grounds E21, E50, and E51.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The central processing unit of the IPDM E/R controls the tail lamp relay
coil, which, when energized, directs power

through IPDM E/R terminal 22

to glove box lamp terminal 1

to A/T device (illumination) terminal 11

to snow mode switch (illumination) terminal 4

LU-1
ENGINE LUBRICATION SYSTEM
B ENGINE
CONTENTS
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SECTION LU
A
LU
Revision: 2004 November 2004 FX35/FX45
ENGINE LUBRICATION SYSTEM
VQ35DE
PRECAUTIONS .......................................................... 3
Precautions for Liquid Gasket .................................. 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
LUBRICATION SYSTEM ............................................ 5
Lubrication Circuit .................................................... 5
System Drawing ....................................................... 6
ENGINE OIL ............................................................... 7
Inspection ................................................................. 7
ENGINE OIL LEVEL ............................................. 7
ENGINE OIL APPEARANCE ................................ 7
ENGINE OIL LEAKAGE ........................................ 7
OIL PRESSURE CHECK ...................................... 8
Changing Engine Oil ................................................ 9
OIL FILTER ............................................................... 10
Removal and Installation ........................................ 10
REMOVAL ........................................................... 10
INSTALLATION ................................................... 10
INSPECTION AFTER INSTALLATION ............... 10
OIL FILTER BRACKET (AWD) ................................. 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ............... 12
OIL COOLER ............................................................ 14
Removal and Installation ........................................ 14
2WD MODEL ...................................................... 14
AWD MODEL ...................................................... 15
REMOVAL ........................................................... 15
INSPECTION AFTER REMOVAL ....................... 15
INSTALLATION ................................................... 16
INSPECTION AFTER INSTALLATION ............... 16
OIL PUMP ................................................................. 17
Removal and Installation ........................................ 17REMOVAL ........................................................... 17
INSTALLATION ................................................... 17
INSPECTION AFTER INSTALLATION ................ 17
Disassembly and Assembly .................................... 17
DISASSEMBLY ................................................... 17
INSPECTION AFTER DISASSEMBLY ................ 18
ASSEMBLY ......................................................... 19
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 20
Standard and Limit .................................................. 20
ENGINE OIL PRESSURE ................................... 20
OIL PUMP ........................................................... 20
REGULATOR VALVE .......................................... 20
ENGINE OIL CAPACITY (APPROXIMATE) ........ 20
VK45DE
PRECAUTIONS ........................................................ 21
Precautions for Liquid Gasket ................................ 21
LIQUID GASKET APPLICATION PROCEDURE ... 21
PREPARATION ......................................................... 22
Special Service Tools ............................................. 22
Commercial Service Tools ...................................... 22
LUBRICATION SYSTEM .......................................... 23
Lubrication Circuit ................................................... 23
System Drawing ..................................................... 24
ENGINE OIL .............................................................. 25
Inspection ............................................................... 25
ENGINE OIL LEVEL ............................................ 25
ENGINE OIL APPEARANCE .............................. 25
ENGINE OIL LEAKAGE ...................................... 25
OIL PRESSURE CHECK .................................... 25
Changing Engine Oil ............................................... 26
OIL FILTER ............................................................... 28
Removal and Installation ........................................ 28
REMOVAL ........................................................... 28
INSTALLATION ................................................... 28
INSPECTION AFTER INSTALLATION ................ 28

LU-2Revision: 2004 November 2004 FX35/FX45 OIL COOLER ............................................................ 29
Removal and Installation ........................................ 29
REMOVAL ........................................................... 29
INSPECTION AFTER REMOVAL ........................ 29
INSTALLATION .................................................... 30
INSPECTION AFTER INSTALLATION ................ 30
OIL PUMP ................................................................. 31
Removal and Installation ........................................ 31
REMOVAL ........................................................... 31
INSTALLATION .................................................... 31INSPECTION AFTER INSTALLATION ................ 32
Disassembly and Assembly .................................... 32
DISASSEMBLY .................................................... 32
INSPECTION AFTER DISASSEMBLY ................ 32
ASSEMBLY .......................................................... 33
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 34
Standard and Limit .................................................. 34
OIL PRESSURE .................................................. 34
ENGINE OIL CAPACITY (APPROXIMATE) ........ 34
OIL PUMP ............................................................ 34
REGULATOR VALVE ........................................... 34