Front end INFINITI FX35 2004 Service Manual

FRONT FOG LAMP
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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" .

LT-82
FRONT FOG LAMP
Revision: 2004 November 2004 FX35/FX45
Terminals and Reference Values for IPDM E/RAKS007CN
How to Proceed With Trouble DiagnosisAKS007CO
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 7 7 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 8 2 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the front fog lamp operate normally? If YES: GO TO 6. If NO: GO TO 4.
6. INSPECTION END
Preliminary CheckAKS007CP
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES

Check fuses for blown-out.
35 W/G Combination switch output 2
ONLighting, turn, wiper OFF
Wiper dial position 4
36 W/R Combination switch output 1
38 W/L Ignition switch (ON) ON — Battery voltage
39 L CAN− H—— —
40 R CAN− L—— —
42 L/R Battery power supply OFF — Battery voltage
49 B Ground ON — Approx. 0V
52 B Ground ON — Approx. 0V
55 G Battery power supply OFF — Battery voltage Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
SKIA5292E
Terminal
No.Wire
colorSignal
nameMeasuring condition
Reference value
Ignition
switchOperation or condition
36 WFront fog
lamp (RH) ONLighting switch must be in the 2ND position or AUTO position
(LOW beam is ON) and the front fog lamp switch must be ON.OFF Approx. 0V
ON Battery voltage
37 SBFront fog
lamp (LH)ONLighting switch must be in the 2ND position or AUTO position
(LOW beam is ON) and the front fog lamp switch must be ON.OFF Approx. 0V
ON Battery voltage
38 B Ground ON — Approx. 0V
48 L CAN− H— — —
49 R CAN− L— — —
60 B Ground ON — Approx. 0V
Unit Power source Fuse and fusible link No.
BCMBatteryM
22
Ignition switch ON or START position 1
Ignition switch ACC or ON position 6

FRONT FOG LAMP
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Refer to LT-79, "Wiring Diagram — F/FOG —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-
3, "POWER SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connector.
3. Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open or short between BCM and
fuse.
3. CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
OK or NG
OK >> INSPECTION END
NG >> Check ground circuit harness.
CONSULT-II FunctionsAKS007CQ
Refer to LT- 1 8 , "CONSULT-II Functions (BCM)" in HEAD LAMP.
Refer to LT- 2 1 , "
CONSULT-II Functions (IPDM E/R)" in HEAD LAMP.
IPDM E/R Battery71
78
88 Unit Power source Fuse and fusible link No.
Terminals Ignition switch position
(+)
(-) OFF ACC ON
ConnectorTerminal
(Wire color)
M311 (LG/R)
Ground0VBattery
voltageBattery
voltage
38 (W/L) 0V 0VBattery
voltage
M442 (L/R)Battery
voltageBattery
voltageBattery
voltage
55 (G)Battery
voltageBattery
voltageBattery
voltage
PKIA5204E
Terminals
Continuity
Connector Terminal (Wire color)
M449 (B)
Ground Yes
52 (B)
PKIA5191E

LT-88
FRONT FOG LAMP
Revision: 2004 November 2004 FX35/FX45
Bulb Replacement AKS007CU
1. Remove left side fender protector (front). Refer to EI-25,
"Removal and Installation" , EI-14, "Removal and Installation" in
“EI” section.
2. Disconnect fog lamp connector.
3. Turn bulb socket counterclockwise and unlock it.
CAUTION:

Do not touch the glass of bulb directly by hand. Keep
grease and other oily matters away from it. Do not touch
bulb by hand while it is lit or right after being turned off.
Burning may result.

Do not leave bulb out of fog lamp reflector for a long time because dust, moisture smoke, etc.
May affect the performance of fog lamp. When replacing bulb, be sure to replace it with new
one.
Removal and Installation AKS007CV
REMOVAL
1. Remove front bumper fascia. Refer to EI-14, "Removal and
Installation" in “EI” section.
2. Remove fog lamp mounting bolt.
3. Pull out fog lamp from vehicle and disconnect fog lamp connec-
tor.
INSTALLATION

Install fog lamp in the reverse order of removal, observing the tightening torque shown below.Fog lamp : 12 V - 51 W (HB4 halogen)
SKIA5558E
SKIA5559E
Fog lamp mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)

LT-90
TURN SIGNAL AND HAZARD WARNING LAMPS
Revision: 2004 November 2004 FX35/FX45

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
LH Turn
When the turn signal switch is moved to the left position, BCM output turn signal from BCM terminal 45, inter-
preting it as turn signal is ON.
Connected from BCM terminal 45 to front combination lamp LH terminal 4.
Turn signal lamp turns on

through front combination lamp LH terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminal 45 to rear combination lamp control unit terminal 4.
Rear turn signal (LED) turns on

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
RH Turn
When the turn signal switch is moved to the right position, BCM output turn signal from BCM terminal 46, inter-
preting it as turn signal is ON.
Connected from BCM terminal 46 to front combination lamp RH terminal 4.
Turn signal lamp turns on

through front combination lamp RH terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminal 46 to rear combination lamp control unit terminal 5.
Rear turn signal (LED) turns on

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, Rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
HAZARD LAMP OPERATION
Power is supplied at all times

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM terminal 55

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8

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

to rear combination lamp control unit terminal 1.
Ground is supplied

through BCM terminals 49 and 52

to grounds M35, M45 and M85

TURN SIGNAL AND HAZARD WARNING LAMPS
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through rear combination lamp control unit terminal 7

to grounds E21, E50 and E51

through combination meter terminals 5, 6 and 15

to grounds M35, M45 and M85.
When the hazard switch is depressed, ground is supplied

through BCM terminal 29

to hazard switch terminal 2

through hazard switch terminal 1

to grounds M35, M45 and M85.
When the hazard switch is depressed, BCM output turn signal from BCM terminals 45 and 46, interpreting it as
turn signal is ON.
Connected from BCM terminal 45 and 46 to front combination lamp terminal 4.
Turn signal lamp turns on

through front combination lamp terminal 8

to grounds E21, E50 and E51.
Connected form BCM terminals 45 and 46 to rear combination lamp control unit terminals 4 and 5.
Rear turn signal (LED) turns on

through rear combination lamp control unit terminal 11

to rear combination lamp LH terminal 3

through rear combination lamp LH terminal 4

to rear combination lamp control unit terminal 10

through rear combination lamp control unit terminal 9

to rear combination lamp RH terminal 3

through rear combination lamp RH terminal 4

to rear combination lamp control unit terminal 8.
BCM sends signal to unified meter and A/C amp. through CAN communication lines, and turns on turn signal
indicator lamp with combination meter.
When rear turn signal lamp (LED) does not turn on, rear combination lamp control unit sends signal to unified
meter and A/C amp. Unified meter and A/C amp. turn LED burnout status signal to BCM through CAN commu-
nication lines for speeding up turn signal blinking.
REMOTE CONTROL ENTRY SYSTEM OPERATION
Power is supplied at all times

through 50A fusible link [letter M, located in fuse and fusible link block]

to BCM terminal 55

through 10A fuse [No. 19, located in fuse block (J/B)]

to combination meter terminal 8

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

to rear combination lamp control unit terminal 1.
Ground is supplied

to BCM terminals 49 and 52

through grounds M35, M45 and M85

to rear combination lamp control unit terminal 7

through grounds E21, E50 and E51

to combination meter terminals 5, 6 and 15

through grounds M35, M45 and M85.
When the remote control entry system is triggered by input from the keyfob, BCM output turn signal from BCM
terminals 45 and 46, interpreting it as turn signal is ON.
Connected from BCM terminals 45 and 46 to front combination lamp terminal 4,
turn signal lamp turns on

through front combination lamp terminal 8

to grounds E21, E50 and E51.

COMBINATION SWITCH
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Combination Switch InspectionAKS007G7
1. SYSTEM CHECK
1. Referring to table below, check which system malfunctioning switch belongs to.
>> Check the system to which malfunctioning switch belongs, and GO TO 2.
2. SYSTEM CHECK
With CONSULT-II
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. Connect CONSULT-II, and select “COMB SW” on “SELECT
TEST ITEM” screen.
2. Select “DATA MONITOR”.
3. Select “START”, and confirm that other switches in malfunction-
ing system operate normally.
Example: When auto light switch is malfunctioning, confirm that
“FRONT WIPER LOW” and “FRONT WIPER INT” in System 3,
to which the auto light switch belongs, turn ON-OFF normally.
Without CONSULT-II
Operating combination switch, confirm that other switches in malfunctioning system operate normally.
Example: When auto light switch is malfunctioning, confirm that FRONT WIPER LOW and FRONT WIPER
INT in System 3, to which the auto light switch belongs, operate normally.
Check results
Other switches in malfunctioning system operate normally.>>Replace lighting switch or wiper switch.
Other switches in malfunctioning system do not operate normally.>>GO TO 3.
System 1 System 2 System 3 System 4 System 5
— FR WASHER FR WIPER LO TURN LH TURN RH
FR WIPER HI — FR WIPER INT PASSING HEAD LAMP1
INT VOLUME 1 RR WASHER — HEAD LAMP2 HI BEAM
RR WIPER INT INT VOLUME 3 AUTO LIGHT — LIGHT SW 1ST
INT VOLUME 2 RR WIPER ON — FR FOG —
PKIA5224E

LT-186
ILLUMINATION
Revision: 2004 November 2004 FX35/FX45

to VDC off switch (illumination) terminal 3

to clock (illumination) terminal 3

to hazard switch (illumination) terminal 3

to heated seat switch (driver side) (illumination) terminal 5

to heated seat switch (passenger side) (illumination) terminal 5

to A/C and AV switch (illumination) terminal 3

to NAVI control unit (illumination) terminal 25

to DVD player (illumination) terminal 12

to front cigarette lighter socket terminal 2

to rear power window switch LH (illumination) terminal 6 and

to rear power window switch RH (illumination) terminal 6.
Illumination control

through combination meter terminal 19

to A/T device (illumination) terminal 12

to snow mode switch (illumination) terminal 2

to VDC off switch (illumination) terminal 4

to clock (illumination) terminal 4

to hazard switch (illumination) terminal 4

to heated seat switch (driver side) (illumination) terminal 6

to heated seat switch (passenger side) (illumination) terminal 6

to A/C and AV switch (illumination) terminal 4

to NAVI control unit (illumination) terminal 30

to DVD player (illumination) terminal 10.
Ground is supplied at all times

to glove box lamp terminal 2 and

to front cigarette lighter socket terminal 3

through grounds M35, M45 and M85

to rear power window switch LH (illumination) terminal 7 and

to rear power window switch RH (illumination) terminal 7

through grounds B15 and B45.
With power and ground supplied, illumination lamps illuminate.
EXTERIOR LAMP BATTERY SAVER CONTROL
When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is acti-
vated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are
turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by the battery saver control, and illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.
CAN Communication System DescriptionAKS007EJ
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 UnitAKS0080Y
Refer to LAN-6, "CAN Communication Unit" .

ENGINE OIL
LU-9
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Revision: 2004 November 2004 FX35/FX45
Use Genuine RTV Silicone Sealant or equivalent. Refer to GI-48, "RECOMMENDED CHEMICAL
PRODUCTS AND SEALANTS" .
Changing Engine OilABS004SV
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. Remove front engine undercover with power tool.
2. Warm up engine, and check for engine oil leakage from engine components. Refer to LU-7, "
ENGINE OIL
LEAKAGE" .
3. Stop engine and wait for 10 minutes.
4. Remove drain plug and oil filler cap.
5. Drain engine oil.
6. Install drain plug with new washer. Refer to EM-30, "
OIL PAN AND OIL STRAINER" .
CAUTION:
Be sure to clean drain plug and install with new washer.
7. Refill with new engine oil.
Engine oil specification and viscosity:
Refer to MA-12, "
RECOMMENDED FLUIDS AND LUBRICANTS" .
Engine oil capacity (Approximate):
Unit: (US qt, lmp qt)
CAUTION:

The refill capacity depends on the engine oil temperature and drain time. Use these specifica-
tions for reference only.

Always use oil level gauge to determine the proper amount of engine oil in engine.
8. Warm up engine and check area around drain plug and oil filter for engine oil leakage.
9. Stop engine and wait for 10 minutes.
10. Check the engine oil level. Refer to LU-7, "
ENGINE OIL LEVEL" . Oil pressure switch:
: 14.8 N·m (1.5 kg-m, 11 ft-lb)
Oil pan drain plug:
: 34.3 N·m (3.5 kg-m, 25 ft-lb)
Drain and refill With oil filter change 4.7 (5, 4-1/8)
Without oil filter change 4.4 (4-5/8, 3-7/8)
Dry engine (Overhaul)5.4 (5-3/4, 4-3/4)