LDP System Control Description

WARNING: This page is about a different car, the 2008 Infiniti EX35. However, it is still accessible from the selected car via links, so may be relevant.

LDP system is controlled by lane camera unit and LDP controller [ABS actuator and electric unit (control unit)].
NOTE: LDP controller is integrated in the ABS actuator and electric unit (control unit).
Lane camera unit monitors lane markers of the traveling lane. It transmits the detected lane condition signal to ABS actuator and electric unit (control unit) via CAN communication.
ABS actuator and electric unit (control unit) detects vehicle conditions depending on each signal.
Combination meter turns the lane departure warning lamp and LDP ON indicator lamp ON/OFF according to the signals from the lane camera unit via CAN communication (through unified meter and A/C amp.).
When ABS actuator and electric unit (control unit) judges vehicle deviation from the traveling lane, it controls following actions.
- Requests warning to the lane camera unit via CAN communication to alert the driver. And then lane camera unit controls the lane departure warning buzzer and it requests the lane departure warning lamp activation to combination meter.
- Calculates the necessary yaw moment. And then it controls the brake pressure of each wheel individually to generate the intended movement.

LDP OPERATING CONDITION

LDP ON indicator lamp: ON
NOTE: LDW ON indicator is OFF.
Vehicle speed: approximately 72 km/h (45 MPH) or more
NOTE: For details of LDP system operating conditions, refer to DESCRIPTION .

LDP OPERATION

Input		Output
Vehicle speed (Approx.) [km/h (MPH)]	Vehicle condition/Driver's operation	Action	Indication on the combination meter	Buzzer
Less than 64 (40)	Close to lane marker	No action	Courtesy of NISSAN MOTOR CO., U.S.A.	-
72 (45) or more	Close to lane marker	Warning and yawing Buzzer sounds Warning lamp blinks Brake control	Courtesy of NISSAN MOTOR CO., U.S.A.	Short continuous beeps
	Close to lane marker Turn signal ON (Deviate side)	No action	Courtesy of NISSAN MOTOR CO., U.S.A.	-
	Close to lane with soft braking	Warning Buzzer sounds Warning lamp blinks	Courtesy of NISSAN MOTOR CO., U.S.A.	Short continuous beeps
	VDC OFF switch: OFF => ON	Cancellation Buzzer sounds Indicator lamp blinks NOTE: When LDP ON switch is ON => OFF, indicator lamp is turned OFF.	Courtesy of NISSAN MOTOR CO., U.S.A.	Beep
	SNOW MODE switch: OFF => ON (If equipped)	Cancellation Buzzer sounds Indicator lamp blinks NOTE: When LDP ON switch is ON => OFF, indicator lamp is turned OFF.	Courtesy of NISSAN MOTOR CO., U.S.A.	Beep