Infiniti QX56 (Z62). Manual — part 310
DAS
SYSTEM
DAS-277
< SYSTEM DESCRIPTION >
[LDW & LDP]
C
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SYSTEM
LANE DEPARTURE WARNING (LDW) SYSTEM
LANE DEPARTURE WARNING (LDW) SYSTEM : System Description
INFOID:0000000006223704
SYSTEM DIAGRAM
ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM
Input Signal Item
Output Signal Item
FUNCTION DESCRIPTION
• Lane Departure Warning (LDW) system provides a lane departure warning function when the vehicle is
driven at speeds of approximately 70 km/h (45 MPH) or more.
JSOIA0285GB
Transmit unit
Signal name
Description
ABS actuator
and electric unit
(control unit)
CAN com-
munica-
tion
Vehicle speed signal (ABS)
Receives wheel speeds of four wheels
BCM
CAN com-
munica-
tion
Turn indicator signal
Receives an operational state of the turn signal lamp
and the hazard lamp
Lane camera
unit
ITS com-
munica-
tion
Detected lane condition signal
Receives detection results of lane marker
Warning sys-
tems switch
Warning systems switch signal
Receives an ON/OFF state of the warning systems
switch
Reception unit
Signal name
Description
Combination
meter
CAN commu-
nication
Lane departure warning lamp signal
Transmits a lane departure warning lamp signal to
turn ON the lane departure warning lamp
Lane camera
unit
ITS commu-
nication
Vehicle speed signal
Transmits a vehicle speed calculated by the ADAS
control unit
Turn indicator signal
Transmits a turn indicator signal received from BCM
Warning buzz-
er
Warning buzzer signal
Activates the warning buzzer
Warning sys-
tems ON indi-
cator
Warning systems ON indicator signal
Turns ON the warning systems ON indicator
DAS-278
< SYSTEM DESCRIPTION >
[LDW & LDP]
SYSTEM
• When the vehicle approaches either the left or the right side of the traveling lane, a warning will sound 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 vehicle returns inside of the lane markers.
EXAMPLE
When the vehicle approaches the right lane marker, the driver is alerted by the buzzer and the blinking of lane
departure warning lamp (yellow).
OPERATION DESCRIPTION
• When the system is turned ON by operating the warning systems switch, ADAS control unit turns ON the
warning systems ON indicator.
• 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 vehicle is approaching the lane marker, the ADAS
control unit controls the following item to alert the driver.
- Activates warning buzzer
- ADAS control unit transmits a lane departure warning lamp signal to combination meter via CAN communi-
cation and turns ON/OFF the lane departure warning lamp (yellow).
OPERATING CONDITION
• Warning systems ON indicator: ON
• Vehicle speed: approximately 70 km/h (45 MPH) or more
• Turn indicator signal: After 2 seconds or more from turned OFF
NOTE:
• After the operating conditions of warning are satisfied, the warning continues until the vehicle speed reaches
approximately 60 km/h (40 MPH)
• LDP ON indicator lamp is OFF
• The LDW system may not function properly, depending on the situation. Refer to
Lane Departure Warning/Lane Departure Prevention"
Bulb Check Action and Fail-safe Indication
JPOIA0014GB
Vehicle condition/ Driver's operation
Warning sys-
tems ON indi-
cator
Indication on the combination meter
Ignition switch
OFF
⇒
ON
(Bulb check)
Approx. 5 sec.
ON
*
JPOIA0017GB
DAS
SYSTEM
DAS-279
< SYSTEM DESCRIPTION >
[LDW & LDP]
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NOTE:
*: If LDW initial state is ON, warning systems ON indicator continues turned ON.
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 FCW/LDW/BSW initial state
1.
Turn ignition switch ON.
2.
Warning systems switch is OFF.
3.
Push and hold warning systems switch for more than 4 seconds.
4.
Buzzer sounds and blinking of the warning systems ON indicator informs that the FCW/LDW/BSW initial
state change is completed.
LANE DEPARTURE WARNING (LDW) SYSTEM : Fail-safe (ADAS Control Unit)
INFOID:0000000006223705
If a malfunction occurs in each system, ADAS control unit cancels each control, sounds a beep, and turns ON
the warning lamp or indicator lamp.
When DTC is detected
(Except “C1B01” and “C1B03”)
ON
Camera aiming is not completed
(“C1B01”is detected)
NOTE:
This is detected while driving the vehicle and the indication
remains ON until the ignition switch is turned OFF
ON
Temporary disabled status at high temperature
(“C1B03”is detected)
ON
Vehicle condition/ Driver's operation
Warning sys-
tems ON indi-
cator
Indication on the combination meter
JPOIA0019GB
JPOIA0020GB
System
Buzzer
Warning lamp/Indicator lamp
Description
Vehicle-to-vehicle distance control mode
High-pitched
tone
ICC system warning lamp
Cancel
Conventional (fixed speed) cruise control mode
High-pitched
tone
ICC system warning lamp
Cancel
Intelligent Brake Assist (IBA)
High-pitched
tone
IBA OFF indicator lamp
Cancel
Forward Collision Warning (FCW)
High-pitched
tone
IBA OFF indicator lamp
Cancel
Distance Control Assist (DCA)
High-pitched
tone
ICC system warning lamp
Cancel
Lane Departure Warning (LDW)
—
Lane departure warning lamp
Cancel
Lane Departure Prevention (LDP)
Low-pitched
tone
Lane departure warning lamp
Cancel
Blind Spot Warning (BSW)
—
BSW warning lamp
Cancel
DAS-280
< SYSTEM DESCRIPTION >
[LDW & LDP]
SYSTEM
LANE DEPARTURE WARNING (LDW) SYSTEM : Fail-safe (Lane Camera Unit)
INFOID:0000000006223706
FAIL-SAFE CONTROL BY DTC
If a malfunction occurs in the lane camera unit, ADAS control unit cancels control, and turns ON the lane
departure warning lamp in the combination meter.
TEMPORARY DISABLED STATUS AT HIGH TEMPERATURE
• If the vehicle is parked in direct sunlight under high temperature conditions, the system may be deactivated
automatically. And the lane departure warning lamp (yellow) in the combination meter will blinks.
• When interior temperature is reduced, the system will resume operation automatically and the lane depar-
ture warning lamp (yellow) in the combination meter will stop blinking.
LANE DEPARTURE PREVENTION (LDP) SYSTEM
LANE DEPARTURE PREVENTION (LDP) SYSTEM : System Description
INFOID:0000000006223707
SYSTEM DIAGRAM
ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM
Input Signal Item
JSOIA0286GB
Transmit unit
Signal name
Description
ECM
CAN com-
munica-
tion
Accelerator pedal position signal
Receives accelerator pedal position (angle)
ICC steering switch
signal
Dynamic driver as-
sistance switch sig-
nal
Receives the operational state of the ICC steering
switch
Engine speed signal
Receives engine speed
Snow mode signal
Receives an operational state of the snow mode
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