Infiniti QX56 (Z62). Manual — part 343
DAS
COMPONENT PARTS
DAS-409
< SYSTEM DESCRIPTION >
[BSW]
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Component Description
INFOID:0000000006223850
A.
Rear bumper removed condition
B.
Rear bumper removed condition
C.
Instrument lower panel (LH)
D.
Behind of instrument lower panel
(LH)
Component
Description
ADAS control unit
• Being connected with side radar (LH and RH) via ITS communication, receives vehicle detection
signal and transmits BSW indicator signal and BSW indicator dimmer signal to side radar
• Activates the warning buzzer and warning systems ON indicator
Side radar LH/ RH
• Being connected with ADAS control unit via ITS communication, transmits vehicle detection sig-
nal
• Receives BSW indicator signal and BSW indicator dimmer signal from ADAS control unit and
transmits an indicator operation signal to BSW indicator LH/RH
• RH side radar equips right/left switching signal circuit for identifying LH or RH because the parts
of side radar are common for right and left
BSW indicator LH/ RH
Receives BSW indicator operation signal from side radar LH/RH and turns OFF, turns ON or blinks
ABS actuator and electric unit
(control unit)
Transmits vehicle speed signal to ADAS control unit via CAN communication
Warning systems switch
Inputs the switch signal to ADAS control unit
Warning systems ON indicator
(On the warning systems switch)
Indicates BSW system status
Warning buzzer
Receives buzzer signal from ADAS control unit and sounds buzzer.
Combination meter
• Receives BSW warning lamp signal via CAN communication
• Turns the BSW warning lamp ON/OFF according to the signals from the ADAS control unit via
CAN communication
BCM
• Transmits turn indicator signal to ADAS control unit via CAN communication
• Transmits dimmer signal to ADAS control unit via CAN communication
TCM
Transmits the shift position signal to ADAS control unit via CAN communication
DAS-410
< SYSTEM DESCRIPTION >
[BSW]
SYSTEM
SYSTEM
System Description
INFOID:0000000006223851
SYSTEM DIAGRAM
ADAS CONTROL UNIT INPUT/OUTPUT SIGNAL ITEM
ADAS control unit receives signals via CAN communication. It also detects vehicle conditions that are neces-
sary for BSW control.
Input Signal Item
Output Signal Item
JSOIA0378GB
Transmit unit
Signal name
Description
TCM
CAN communication
Shift position signal
Receives a selector lever position
ABS actuator
and electric unit
(control unit)
CAN communication
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
Dimmer signal
Receives ON/OFF state of dimmer signal
Side radar LH,
RH
ITS communication
Vehicle detection signal
Receives vehicle detection condition of detection zone
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 communication
BSW warning lamp signal
Transmits a BSW warning lamp signal to turn ON the
BSW warning lamp
Side radar LH,
RH
ITS communication
BSW indicator signal
Transmits a BSW indicator signal to turn ON the BSW
indicator
BSW indicator dimmer signal
Transmits a BSW indicator dimmer signal to dimmer
BSW indicator
Vehicle speed signal
Transmits a vehicle speed calculated by the ADAS
control unit
Warning sys-
tems ON indi-
cator
Warning systems ON indicator signal
Turns ON the warning systems ON indicator
Warning buzz-
er
Warning buzzer signal
Activates the warning buzzer
DAS
SYSTEM
DAS-411
< SYSTEM DESCRIPTION >
[BSW]
C
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A
FUNCTION DESCRIPTION
• The BSW system can help alert the driver of other vehicles in adjacent lanes when changing lanes.
• The BSW system uses side radar installed near the rear bumper to detect vehicles in an adjacent lane.
• The side radar can detect vehicles on either side of vehicle within the detection zone shown as illustrated.
• This detection zone starts from the outside mirror of vehicle and extends approximately 10 ft (3.0 m) behind
the rear bumper, and approximately 10 ft (3.0 m) sideways.
• The BSW system operates above approximately 32 km/h (20 MPH).
• If the side radar detects vehicles in the detection zone, the BSW indicator illuminates.
• If the driver then activates the turn signal, a buzzer will sound twice and the BSW indicator will blink.
NOTE:
A buzzer sounds if the side radar have already detected vehicles when the driver activates the turn signal. If
a vehicle comes into the detection zone after the driver activates the turn signal, then only the BSW indicator
blinks and no buzzer sounds.
BSW SYSTEM OPERATION DESCRIPTION
• ADAS control unit enables BSW system.
• The ADAS control unit turns on the BSW system when the warning systems switch is turned ON.
• Side radar detects a vehicle in the adjacent lane, and transmits the vehicle detection signal to ADAS control
unit via ITS communication.
• ADAS control unit starts the control as follows, based on a vehicle detection signal, turn signal and dimmer
signal transmitted from BCM via CAN communication:
- BSW indicator signal and BSW indicator dimmer signal transmission to side radar.
- Buzzer signal transmission to warning buzzer.
• Side radar transmits an indicator operation signal to the BSW indicator according to BSW indicator signal
and BSW indicator dimmer signal.
Operation Condition of BSW System
ADAS control unit performs the control when the following conditions are satisfied.
• When the warning systems switch in turned ON.
• When the vehicle drives at approximately 32 km/h (20 MPH) or more to the forward direction.
JSOIA0257GB
JSOIA0258GB
DAS-412
< SYSTEM DESCRIPTION >
[BSW]
SYSTEM
NOTE:
• After the operating conditions of warning are satisfied, the warning continues until the vehicle speed reaches
approximately 29 km/h (18 MPH)
• The BSW system may not function properly, depending on the situation. Refer to
BULB CHECK ACTION AND FAIL-SAFE INDICATION
*: If BSW initial state is ON, warning systems ON indicator continues turned ON.
NOTE:
• The condition is seen regardless BSW system status (ON/OFF).
• If either of the side radars is in factory-default mode, the BSW warning lamp blinks.
• New side radars are in factory-default mode.
Vehicle condition/Driver
′
s operation
BSW indicator
Warning systems
ON indicator
Indication on the combination meter
Ignition switch:
OFF
⇒
ON
Approx. 2 sec. ON
Approx. 5 sec. ON
*
When DTC is detected
OFF
ON
Side radar is factory-default mode con-
dition
NOTE
OFF
—
*1
When radar blockage is detected
OFF
ON
*
2
JSOIA0374GB
JSOIA0254GB
JSOIA0255GB
JSOIA0255GB
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