Infiniti FX35, FX50 (S51). Manual - part 408

 

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Infiniti FX35, FX50 (S51). Manual - part 408

 

 

CCS-452

< SYSTEM DESCRIPTION >

[LDW & LDP]

LANE DEPARTURE WARNING (LDW) SYSTEM

Bulb Check Action and Fail-safe Indication 

NOTE:
*: The FCW system operates.

LDW INITIAL STATE CHANGE

CAUTION:

Never change LDW initial state “ON” 

 “OFF” without the consent of the customer. 

LDW initial state can be changed.
• LDW initial ON* - LDW function is automatically turned ON, when the ignition switch OFF 

 ON. 

• LDW initial OFF - LDW function is still OFF when the ignition switch OFF 

 ON.

*: Factory setting

How to change LDW initial state

1.

Turn ignition switch ON.

2.

Switch LDW and LDP functions to OFF.

1.

LDW switch
(Shared with the FCW system)

2.

LDW ON indicator
(Shared with the FCW system)

3.

Lane departure warning lamp
(Yellow)

A.

On the instrument driver lower panel

B.

On the combination meter

JPOIA0175ZZ

Vehicle condition/ Driver's operation

LDW ON indi-

cator

Indication on the combination meter

Ignition switch:
OFF 

 ON

2 sec. ON

When DTC is detected
(Except “C1B01” and “C1B03”)

ON

*

Camera aiming is not completed
(“C1B01” is detected)

ON

*

Temporary disabled status at high temperature
(“C1B03” is detected)

Blink

*

OFF

JPOIA0017GB

JPOIA0019GB

JPOIA0020GB

CCS

LANE DEPARTURE WARNING (LDW) SYSTEM

CCS-453

< SYSTEM DESCRIPTION >

[LDW & LDP]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

3.

Push and hold LDW switch for more than 4 seconds.

4.

Buzzer sounds and blinking of the lane departure warning lamp informs that the LDW initial state change
is completed.

LDW SYSTEM CONTROL DESCRIPTION

• LDW system is controlled by lane camera unit.
• Lane camera unit monitors lane markers of the traveling lane.
• Combination meter turns the lane departure warning lamp ON/OFF according to the signal from the lane

camera unit via CAN communication (through unified meter and A/C amp.).

• When the lane camera unit judges vehicle deviation from the traveling lane, it controls following actions to

alert the driver.

- Requests the lane departure warning lamp activation to combination meter.
- Controls the lane departure warning buzzer.

LDW OPERATING CONDITION

• LDW ON indicator: ON

NOTE:
LDP ON indicator lamp is OFF.

• Vehicle speed: approximately 72 km/h (45 MPH) or more
NOTE:
For details of LDW system operating conditions, refer to normal operating condition 

CCS-533, "Description"

.

SIGNAL INPUT/OUTPUT BY CAN COMMUNICATION

Lane camera unit receives signals via CAN communication. It also detects vehicle conditions that are neces-
sary for LDW control.

Input

Output

Vehicle speed

(Approx.)

[km/h (MPH)]

Vehicle condition/ Driver's op-

eration

Action

LDW ON 

indictor

Indication on the combination 

meter

Buzzer

Less than 64 

(40)

Close to lane marker

No action

ON

OFF

72 (45) or 

more

Close to lane marker

Warning

• Buzzer sounds
• Warning lamp 

blinks

ON

Short continu-

ous beeps

• Close to lane marker
• Turn signal ON (Deviate 

side)

No action

ON

OFF

JPOIA0018GB

Reception Unit

Signal Name

Transmission Unit

Description

Lane camera unit

Vehicle speed signal

ABS actuator and elec-
tric unit (control unit)

Detects the vehicle speed

Turn indicator signal

BCM

Detects operation of turn signals 

LDW ON signal

ICC sensor integrated 
unit

Detects the LDW ON status

Combination meter
(through unified meter 
and A/C amp.)

Lane departure warning lamp 
signal

Lane camera unit

Turns the lane departure warning lamp ON/OFF 
according to the request

ICC sensor integrated 
unit
(through ABS actua-
tor and electric unit 
(control unit))

LDW switch signal

Lane camera unit

Detects the LDW switch status

CCS-454

< SYSTEM DESCRIPTION >

[LDW & LDP]

LANE DEPARTURE WARNING (LDW) SYSTEM

Component Parts Location

INFOID:0000000005502066

Component Description

INFOID:0000000005502067

1.

Lane camera unit

2.

BCM
Refer to 

BCS-7, "Component Parts 

Location"

.

3.

Unified meter and A/C amp.
Refer to 

MWI-10, "METER SYSTEM 

: Component Parts Location"

.

4.

ICC sensor integrated unit
Refer to 

CCS-27, "Component Parts 

Location"

.

5.

ABS actuator and electric unit (con-
trol unit)
Refer to 

BRC-14, "Component Parts 

Location"

.

6.

Lane departure warning buzzer

7.

LDW switch

8.

Lane departure warning lamp (Yel-
low)
(On the combination meter)

A.

Front of the map lamp

B.

Behind the console finisher assem-
bly

JSOIA0158ZZ

Component

Description

Lane camera unit

• Detects the lane marker by the built-in camera.
• Judges the lane departure depending on the lane detection result and each signals.
• Controls the lane departure warning buzzer, lane departure warning lamp and LDW ON indicator.
• Transmits LDW switch signal to ABS actuator and electric unit (control unit) via CAN communi-

cation.

ABS actuator and electric unit 
(control unit)

• Transmits vehicle speed signal to lane camera unit via CAN communication.
• Transmits LDW switch signal to ICC sensor integrated unit via CAN communication.

LDW switch

Inputs the switch signal to lane camera unit.

LDW ON indicator
(On the LDW ON switch)

Indicates LDW system status.

Lane departure warning buzzer

Gives a warning according to the direction from lane camera unit.

Combination meter

Turns the lane departure warning lamp and LDP ON indicator lamp ON/OFF according to the sig-
nals from the lane camera unit via CAN communication (through unified meter and A/C amp.).

CCS

LANE DEPARTURE WARNING (LDW) SYSTEM

CCS-455

< SYSTEM DESCRIPTION >

[LDW & LDP]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

Lane departure warning lamp 
(Yellow)

• Blinks when LDW is functioning to alert the driver.
• Stays ON when LDW system is malfunctioning.

BCM

Transmits turn indicator signal to lane camera unit via CAN communication.

ICC sensor integrated unit

Transmits an LDW ON signal to the lane camera unit when receiving an LDW switch signal from 
the ABS actuator and electric unit (control unit).

Component

Description

 

 

 

 

 

 

 

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