Infiniti EX35. Manual - part 396

CCS

LANE DEPARTURE WARNING (LDW) SYSTEM

CCS-119

< FUNCTION DIAGNOSIS >

[LDW & LDP]

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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-189, "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 

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

CCS-120

< FUNCTION DIAGNOSIS >

[LDW & LDP]

LANE DEPARTURE WARNING (LDW) SYSTEM

Component Parts Location

INFOID:0000000003514570

1.

Lane camera unit

2.

BCM

3.

Unified meter and A/C amp.

4.

ABS actuator and electric unit (con-
trol unit)

5.

Lane departure warning buzzer

6.

LDW switch

7.

Lane departure warning lamp (Yel-
low)

1.

Lane camera unit

2.

BCM

3.

Unified meter and A/C amp.

4.

ABS actuator and electric unit (control 
unit)

5.

Lane departure warning buzzer

6.

LDW switch

7.

Lane departure warning lamp (Yellow)

A.

Front of the map lamp

B.

Dash side lower (passenger side)

C.

Behind the cluster lid C

JSOIA0089ZZ

JPOIA0121ZZ

CCS

LANE DEPARTURE WARNING (LDW) SYSTEM

CCS-121

< FUNCTION DIAGNOSIS >

[LDW & LDP]

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Component Description

INFOID:0000000003514571

D.

Inside the brake master cylinder cover E.

Behind the cluster lid C
(Under the AV control unit)

F.

Instrument driver lower panel (LH)

G.

On the combination meter

Component

Description

Lane camera unit
(LDW controller)

• 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.

ABS actuator and electric unit 
(control unit)

Transmits vehicle speed signal to lane camera 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.).

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.

CCS-122

< FUNCTION DIAGNOSIS >

[LDW & LDP]

LANE DEPARTURE PREVENTION (LDP) SYSTEM

LANE DEPARTURE PREVENTION (LDP) SYSTEM

System Diagram

INFOID:0000000003514572

System Description

INFOID:0000000003514573

OUTLINE

• Lane Departure Prevention (LDP) system provides a lane departure warning and brake control assistance

when the vehicle is driven at speeds of approximately 72 km/h (45 MPH) or more.

• When the vehicle approaches either the left or the right side of the traveling lane, a warning sounds and the

lane departure warning lamp (yellow) on the combination meter blinks to alert the driver.

• Then, the LDP system automatically applies the brakes for a short period of time to help assist the driver to

return the vehicle to the center of the traveling lane.

JPMIA0927GB