Infiniti FX35 / FX45. Manual — part 793

FRONT FOG LAMP

LT-67

< SERVICE INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

LT

N

O

P

• to BCM terminals 49 and 52
• through grounds M35, M45 and M85,
• to IPDM E/R terminals 38 and 60
• through grounds E21, E50 and E51.

FRONT FOG LAMP OPERATION

The front fog lamp switch is built into combination switch. The lighting switch must be in the 2ND position or
AUTO position (headlamp is ON) and the front fog lamp switch must be ON for front fog lamp operation.
With the front fog lamp switch in the ON position, the CPU located in the IPDM E/R grounds the coil side of the
front fog lamp relay. The front fog lamp relay then directs power
• through IPDM E/R terminal 36
• to front fog lamp RH terminal 1,
• through IPDM E/R terminal 37
• to front fog lamp LH terminal 1.
Ground is supplied
• to front fog lamp RH and LH terminals 2
• through grounds E21, E50 and E51.
With power and grounds supplied, front fog lamps illuminate.

COMBINATION SWITCH READING FUNCTION

Refer to

BCS-4, "System Description"

.

EXTERIOR LAMP BATTERY SAVER CONTROL

When the combination switch (lighting switch) is in the 2ND position (ON), the front 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 front fog lamps (and headlamps) remain illuminated for 5 minutes, then the front fog
lamps (and headlamps) are turned off.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-III.

CAN Communication System Description

INFOID:0000000001328329

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 Unit

INFOID:0000000001328330

Refer to

LAN-43, "CAN System Specification Chart"

.

LT-68

< SERVICE INFORMATION >

FRONT FOG LAMP

Wiring Diagram - F/FOG -

INFOID:0000000001328331

TKWM4303E

FRONT FOG LAMP

LT-69

< SERVICE INFORMATION >

C

D

E

F

G

H

I

J

L

M

A

B

LT

N

O

P

Terminal and Reference Value for BCM

INFOID:0000000001328332

CAUTION:

• Check combination switch system terminal waveform under the loaded condition with lighting

switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.

• Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-

mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-III. Refer to

LT-

103, "CONSULT-III Functions (BCM)"

.

TKWM4304E

LT-70

< SERVICE INFORMATION >

FRONT FOG LAMP

Terminal and Reference Value for IPDM E/R

INFOID:0000000001328333

Terminal

No.

Wire

color

Signal name

Measuring condition

Reference value

Ignition

switch

Operation or condition

3

L/B

Combination
switch input 4

ON

Lighting, turn, wiper
switch
(Wiper intermittent
dial position 4)

OFF

Approx. 0 V

Front fog lamp switch
(Operates only front fog
lamp switch)

Approx. 0.8 V

11

LG

Ignition switch
(ACC)

ACC

—

Battery voltage

32

GY/R

Combination
switch output 5

ON

Lighting, turn, wiper
switch
(Wiper intermittent
dial position 4)

OFF

Approx. 7.2 V

Front fog lamp switch
(Operates only front fog
lamp switch)

Approx. 1.0 V

38

W/L

Ignition switch
(ON)

ON

—

Battery voltage

39

L

CAN

−

H

—

—

—

40

P

CAN

−

L

—

—

—

42

L/R

Battery power
supply

OFF

—

Battery voltage

49

B

Ground

ON

—

Approx. 0 V

52

B

Ground

ON

—

Approx. 0 V

55

G

Battery power
supply

OFF

—

Battery voltage

PKIB4955J

PKIB4960J

PKIB4956J

Termi-

nal

No.

Wire

color

Signal

name

Measuring condition

Reference value

Ignition

switch

Operation or condition

36

W

Front fog
lamp (RH)

ON

Lighting switch must be in the 2ND position or AUTO position
(headlamp is ON) and front fog lamp switch must be ON.

OFF

Approx. 0 V

ON

Battery voltage

37

SB

Front fog
lamp (LH)

ON

Lighting switch must be in the 2ND position or AUTO position
(headlamp is ON) and front fog lamp switch must be ON.

OFF

Approx. 0 V

ON

Battery voltage