Nissan Murano: System / Ldw

Nissan Murano (Z52) 2015-2024 Service Manual / Cruise Control & Driver Assistance / Driver Assistance System :: Driver Assistance System / System Description / System / Ldw

System Description

SYSTEM DIAGRAM

ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM

Input Signal Item

Transmit unit	Signal name		Description
ABS actuator and electric unit (control unit)	CAN communication	Nissan Murano Vehicle speed signal (ABS)	Receives wheel speeds of four wheels
BCM	CAN communication	Turn indicator signal	Receives an operational state of the turn signal lamp and the hazard lamp
Combination meter	CAN communication	System selection signal	Receives a selection state of each item in “Driver Assistance” selected with the Nissan Murano vehicle information display
Lane camera unit	ITS communication	Detected lane condition signal	Receives detection results of lane marker

Output Signal Item

Reception unit	Signal name		Description
Combination meter	CAN communication	Lane departure warning lamp signal	Transmits a lane departure warning lamp signal to turn ON the lane departure warning lamp
Lane camera unit	ITS communication	Nissan Murano Vehicle speed signal	Transmits a vehicle speed calculated by the ADAS control unit
Lane camera unit	ITS communication	Turn indicator signal	Transmits a turn indicator signal received from BCM
Warning system buzzer	Warning buzzer signal		Activates warning system buzzer.
Steering vibration motor	Motor operation signal		Transmits a motor operation signal to activate the steering vibration motor.

FUNCTION DESCRIPTION

Lane Departure Warning (LDW) system provides a lane departure warning function when the vehicle is driven at speeds of approximately 60 km/h (37 MPH) or more.
When the Nissan Murano vehicle approaches either the left or the right side of the traveling lane, the steering vibration motor activates and the lane departure warning lamp (yellow) on the combination meter will blink to alert the driver.
The warning does not occur during turn signal operation (Lane change side).
The warning function will stop when the Nissan Murano vehicle returns inside of the lane markers.

EXAMPLE

When the vehicle approaches the right lane marker, the driver is alerted by the steering vibration motor, the warning system buzzer and the blinking of lane departure warning lamp (yellow).

OPERATION DESCRIPTION

The LDW system setting on the vehicle information display is ON.
Lane camera unit monitors lane markers of the traveling lane. It transmits the detected lane condition signal to ADAS control unit via ITS communication.
When judging from a lane marker detection signal that the Nissan Murano vehicle is approaching the lane marker, the ADAS control unit controls the following item to alert the driver.
- Activates the steering vibration motor
- Activates warning system buzzer
- ADAS control unit transmits a lane departure warning lamp signal to combination meter via CAN communication and turns ON/OFF the lane departure warning lamp (yellow).

OPERATING CONDITION

LDW system display (white): ON
Vehicle speed: approximately 60 km/h (37 MPH) or more
Turn indicator signal: After 2 seconds or more from turned OFF

NOTE:

When the LDW system setting on the Nissan Murano vehicle information display is ON.

After the operating conditions of warning are satisfied, the warning continues until the Nissan Murano vehicle speed reaches approximately 50 km/h (30 MPH)

I-LI ON indicator lamp is OFF

The LDW system may not function properly, depending on the situation. Refer to Precaution For Lane Departure Warning.

Fail-safe Indication

Nissan Murano Vehicle condition/ Driver's operation	Warning systems ON indicator	Indication on the combination meter
When DTC is detected (Except “C1B01-55” and “C1B03-4B”)	ON
Camera aiming is not completed (“C1B01-55” is detected) NOTE: This is detected while driving the Nissan Murano vehicle and the indication remains ON until the ignition switch is pushed OFF	ON
When DTC is detected (Except “C1B01-55” and “C1B03-4B”)	ON
Camera aiming is not completed (“C1B01-55” is detected) NOTE: This is detected while driving the Nissan Murano vehicle and the indication remains ON until the ignition switch is pushed OFF	ON
Temporary disabled status at high temperature (“C1B03-4B” is detected)	OFF	Unavailable: High Cabin Temp

Rcta

System Description SYSTEM DIAGRAMADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description TCM CAN communication Current gear position signal Receives a current gear position...

I-Li

System Description SYSTEM DIAGRAMADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEMInput Signal Item Transmit unit Signal name Description ECM CAN communication Brake pedal position switch signal Receives Brake pedal position switch state Accelerator pedal position signal Receives accelerator pedal position (angle) Stop lamp switch signal Receives stop lamp switch state Engine speed signal Receives engine speed TCM CAN communication Input speed signal Receives the number of revolutions of input shaft Current gear position signal Receives a current gear position Shift position signal Receives a selector lever position Output shaft revolution signal Receives the number of revolutions of output shaft ABS actuator and electric unit (control unit) CAN communication ABS malfunction signal Receives a malfunction state of ABS ABS operation signal Receives an operational state of ABS TCS malfunction signal Receives a malfunction state of TCS TCS operation signal Receives an operational state of TCS VDC OFF switch signal Receives an ON/OFF state of VDC VDC malfunction signal Receives a malfunction state of VDC VDC operation signal Receives an operational state of VDC Nissan Murano Vehicle speed signal (ABS) Receives wheel speeds of four wheels Yaw rate signal Receives yaw rate acting on the Nissan Murano vehicle Side G sensor signal Receives lateral G acting on the Nissan Murano vehicle Combination meter CAN communication Parking brake switch signal Receives an operational state of the parking brake System selection signal Receives a selection state of each item in "Driver Assistance" BCM CAN communication Turn indicator signal Receives an operational state of the turn signal lamp and the hazard lamp Steering angle sensor CAN communication Steering angle sensor malfunction signal Receives a malfunction state of steering angle sensor Steering angle sensor signal Receives the number of revolutions, turning direction of the steering wheel Steering angle speed signal Receives the turning angle speed of the steering wheel Lane intervention switch Lane intervention switch signal Receives an ON/OFF state of the lane intervention switch Lane camera unit ITS communication Detected lane condition signal Receives detection results of lane marker Output Signal Item Reception unit Signal name Description ABS actuator and electric unit (control unit) CAN communication Target yaw moment signal Transmits a target yaw moment signal to generate yaw moment to the Nissan Murano vehicle Combination meter CAN communication Intelligent Lane Intervention ON indicator lamp signal Transmits an Intelligent Lane Intervention ON indicator lamp signal to turn ON the Intelligent Lane Intervention ON indicator lamp Lane departure warning lamp signal Transmits an lane departure warning lamp signal to turn ON the lane departure warning lamp Lane camera unit ITS communication Nissan Murano Vehicle speed signal Transmits a vehicle speed calculated by the ADAS control unit Turn indicator signal Transmits a turn indicator signal received from BCM Steering assist system ON indicator Steering assist system ON indicator signal Turns ON the steering assist system ON indicator Intelligent Lane Intervention system ON indicator Intelligent Lane Intervention system ON indicator signal Turns ON the Intelligent Lane Intervention system ON indicator Warning system buzzer Warning buzzer signal Activates warning system buzzer...

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