Infiniti QX56 (Z62). Manual - part 309

DAS

PRECAUTIONS

DAS-273

< PRECAUTION >

[LDW & LDP]

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• Bypass connection is never allowed at the repaired area.

NOTE:
Bypass connection may cause ITS communication error. The
spliced wire becomes separated and the characteristics of twisted
line are lost.

Precaution for LDW/LDP System Service

INFOID:0000000006223699

WARNING:

Be careful of traffic conditions and safety around the vehicle when performing road test.

CAUTION:

• Never use the LDP system when driving with free rollers or a chassis dynamometer.
• Never perform the active test while driving.
• Never disassemble and remodel the lane camera unit.
• Do not use the lane camera unit that is removed from the vehicle.
• Never change LDW initial state ON 

⇒

 OFF without the consent of the customer. 

SKIB8767E

DAS-274

< SYSTEM DESCRIPTION >

[LDW & LDP]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

LANE DEPARTURE WARNING (LDW) SYSTEM

LANE DEPARTURE WARNING (LDW) SYSTEM : Component Parts Location

INFOID:0000000006223700

LANE DEPARTURE WARNING (LDW) SYSTEM : Component Description

INFOID:0000000006223701

1.

Lane camera unit

2.

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

3.

Warning systems switch

4.

Warning systems ON indicator

5.

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

BRC-10, "Component Parts 

Location"

6.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

7.

Warning buzzer

8.

ADAS control unit
Refer to 

DAS-13, "Component Parts 

Location"

A.

Front of the map lamp

B.

Instrument lower panel (LH)

C.

Behind of instrument lower panel 
(LH)

JSOIA0367ZZ

Component

Description

ADAS control unit

• Judges the lane departure depending on the lane detection result and each signals
• Controls the warning buzzer and the warning systems ON indicator
• Transmits lane departure warning lamp signal to combination meter via CAN communica-

tion

Lane camera unit

• Detects the lane marker in travel lane
• Transmits the detected lane condition signal to ADAS control unit via ITS communication

ABS actuator and electric unit (con-
trol unit)

Transmits the vehicle speed signal (wheel speed) to ADAS control unit via CAN communica-
tion

DAS

COMPONENT PARTS

DAS-275

< SYSTEM DESCRIPTION >

[LDW & LDP]

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LANE DEPARTURE PREVENTION (LDP) SYSTEM

LANE DEPARTURE PREVENTION (LDP) SYSTEM : Component Parts Location

INFOID:0000000006223702

Warning systems switch

Inputs the warning systems switch signal to ADAS control unit

Warning systems ON indicator
(On the warning systems switch)

Turns on the warning systems ON indicator, according to an warning systems ON indicator 
signal received from the ADAS control unit

Warning buzzer

Activates the warning buzzer, according to a warning buzzer signal received from the ADAS 
control unit

Combination meter

Turns the lane departure warning lamp ON/OFF according to the signals from ADAS control 
unit via CAN communication

BCM

Transmits the turn indicator signal to ADAS control unit via CAN communication

Component

Description

1.

Lane camera unit

2.

Dynamic driver assistance switch
(On the ICC steering switch)

3.

• Lane departure warning lamp (Yel-

low)

• LDP ON indicator (Green)
(On the combination meter)

4.

Transfer control unit
Refer to 

DLN-10, "Component Parts 

Location"

5.

AV control unit
Refer to 

AV-9, "Component Parts Lo-

cation"

6.

ECM
Refer to 

EC-16, "Component Parts 

Location"

7.

TCM
Refer to 

TM-10, "A/T CONTROL 

SYSTEM : Component Parts Loca-
tion"

8.

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

BRC-10, "Component Parts 

Location"

9.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

10. Warning buzzer

11.

Steering angle sensor
Refer to 

BRC-10, "Component Parts 

Location"

12. ADAS control unit

Refer to 

DAS-13, "Component Parts 

Location"

A.

Front of map lamp

B.

Behind instrument lower panel (LH)

JSOIA0368ZZ

DAS-276

< SYSTEM DESCRIPTION >

[LDW & LDP]

COMPONENT PARTS

LANE DEPARTURE PREVENTION (LDP) SYSTEM : Component Description

INFOID:0000000006223703

Component

Description

ADAS control unit

• Judges lane departure based on each signal and calculates yaw moment necessary to generate 

force toward the direction to recover the vehicle from the lane departure

• Outputs the warning buzzer signal to the warning buzzer
• Transmits a target yaw moment signal to the ABS actuator and electric unit (control unit) via CAN 

communication

• Transmits the lane departure warning lamp signal and LDP ON indicator lamp signal to combina-

tion meter via CAN communication

Lane camera unit

• Detects the lane marker in travel lane
• Transmits the detected lane condition signal to ADAS control unit via ITS communication

ABS actuator and electric unit 
(control unit)

• Transmits the vehicle speed signal (wheel speed) to ADAS control unit via CAN communication
• Transmits the yaw rate signal and side G sensor signal to ADAS control unit via CAN communi-

cation

• Receives a target yaw moment signal from the ADAS control unit via CAN communication and 

controls brake pressure of four wheels, respectively

Warning buzzer

Activates the warning buzzer, according to a warning buzzer signal received from the ADAS control 
unit

Dynamic driver assistance 
switch
(On the ICC steering switch)

ECM receives an ICC steering switch (dynamic driver assistance switch) signal and transmits the 
signal to ADAS control unit via CAN communication

Combination meter

Turns on the following indicator/warning lamp, according to a signal received for the ADAS control 
unit via CAN communication
• LDP ON indicator lamp (Green)
• Lane departure warning lamp (Yellow)

BCM

Transmits the turn indicator signal to ADAS control unit via CAN communication

ECM

Transmits the accelerator pedal position signal, engine speed signal and ICC steering switch signal 
(dynamic driver assistance switch signal) to ADAS control unit via CAN communication

Steering angle sensor

Transmits the steering angle sensor signal to ADAS control unit via CAN communication

TCM

Transmits the output shaft revolution signal, input speed signal, current gear position signal and shift 
position signal to ADAS control unit via CAN communication

Transfer control unit

Transmits the current 4WD mode signal to ADAS control unit via CAN communication

AV control unit

Transmits the system selection signal to ADAS control unit via CAN communication