Nissan Qashqai J11. Manual — part 978
COMPONENT PARTS
BRC-149
< SYSTEM DESCRIPTION >
[FORWARD EMERGENCY BRAKING]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Sonar buzzer
A buzzer sounds a according to operation signal from the sonar control
unit.
Steering angle sensor
Steering angle sensor related signal is transmitted to distance sensor
via CAN communication.
Sonar control unit
• While Forward Emergency Braking is operating, when the system
wants to recommend an operation to the driver, and when the sys-
tem is canceled, a buzzer sounds due to a sonar output request from
the distance sensor.
• Refer to
SN-58, "Component Parts Location"
for detailed installation
location.
No.
Component parts
Function
BRC-150
< SYSTEM DESCRIPTION >
[FORWARD EMERGENCY BRAKING]
SYSTEM
SYSTEM
System Description
INFOID:0000000010501238
SYSTEM DIAGRAM
INPUT/OUTPUT SIGNAL ITEM
Input Signal Item
JMOIA0066GB
Transmit unit
Signal name
Description
ECM
CAN com-
munica-
tion
Idle switch signal
Receives idle position state (ON/OFF)
Accelerator pedal position signal
Receives accelerator pedal position (angle)
Engine speed signal
Receives engine speed
TCM
CAN com-
munica-
tion
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
BCM
CAN com-
munica-
tion
Stop lamp switch signal
Receives an operational state of the brake pedal
SYSTEM
BRC-151
< SYSTEM DESCRIPTION >
[FORWARD EMERGENCY BRAKING]
C
D
E
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H
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J
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L
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A
B
BRC
N
O
P
Output Signal Item
DESCRIPTION
• Forward emergency braking (FEB) system can assist the driver when there is a risk of a forward collision
with the vehicle ahead in the traveling lane.
• FEB system operate at speeds above approximately 5 km/h (3 MPH).
FUNCTION DESCRIPTION
• The FEB system uses a distance sensor to measure the distance to the vehicle ahead in the traveling lane.
• If there is a risk of a collision, FEB issues a visual and audible warning signal to the combination meter via
CAN communication.
• If the driver does not take action, FEB issues the second visual and audible warning.
• And if the risk of a collision becomes imminent, FEB system applies braking command to ABS actuator and
electric unit (control unit) via CAN communication.
Operating Condition
• FEB is ON
• Vehicle speed: Approximately 5 km/h (3 MPH) and above
CAUTION:
It is the driver
′
s responsibility to stay alert, drive safely and be in control of the vehicle at all times. As
there is a performance limit, it may not provide a warning or brake in certain conditions.
ABS actuator
and electric unit
(control unit)
CAN com-
munica-
tion
ABS malfunction signal
Receives a malfunction state of ABS
ABS operation signal
Receives an operational state of ABS
ABS warning lamp signal
Receives an ON/OFF state of ABS warning lamp
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
Vehicle speed signal (ABS)
Receives wheel speeds of four wheels
Yaw rate signal
Receives yaw rate acting on the vehicle
Steering angle
sensor
CAN com-
munica-
tion
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
Chassis control
module
CAN com-
munica-
tion
Chassis control module signal
Receives an operation state of the chassis control mod-
ule
Transmit unit
Signal name
Description
Reception unit
Signal name
Description
ABS actuator
and electric
unit (control
unit)
CAN commu-
nication
Chassis control module state signal
Transmits a brake fluid pressure control signal to acti-
vates the brake via chassis control module
Combination
meter
CAN commu-
nication
Meter display
signal
Vehicle ahead detection
indicator signal
Transmits a signal to display a state of the system on the
information display
FEB system display sig-
nal
FEB warning signal
BRC-152
< SYSTEM DESCRIPTION >
[FORWARD EMERGENCY BRAKING]
OPERATION
OPERATION
Switch Name and Function
INFOID:0000000010501241
Menu Displayed by Pressing Each Switch
INFOID:0000000010501242
SYSTEM DISPLAY
DISPLAY AND WARNING
Warning Operation
JMOIA0075GB
No.
Switch name
Description
FEB setting display
(Combination meter setting display)
The setting of FEB system can be switched between ON and OFF
JMOIA0076GB
No.
Switch name
Description
FEB warning lamp
• FEB warning lamp indicates that an abnormal condition is present in FEB system
• When the FEB system turns OFF, the FEB warning lamp will illuminate.
FEB ON indicator
(Warning systems indicator)
Indicates that FEB systems are ON
FEB display “Forward”
(Speaker icon)
Indicates that FEB system is ON
FEB warning
Displays immediately before the harder brake operates
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