Nissan Juke F15. Manual — part 105
COMPONENT PARTS
BRC-11
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Component Description
INFOID:0000000012199652
*1: Models with CVT
*2: AWD models
Wheel Sensor and Sensor Rotor
INFOID:0000000012199653
NOTE:
• Wheel sensor of front wheel is installed on steering knuckle.
• Sensor rotor of front wheel is integrated in wheel hub and bearing assembly.
• Wheel sensor of rear wheel is installed on wheel hub and bearing assembly. (2WD)
• Wheel sensor of rear wheel is installed on axle housing. (AWD)
• Sensor rotor of rear wheel is integrated in wheel hub and bearing assembly. (2WD)
• Sensor rotor of rear wheel is integrated on drive shaft. (AWD)
• Never measure resistance and voltage value using a tester because sensor is active sensor.
A.
Under floor carpet (front seat right
side)
B.
Inside engine room
C.
Steering knuckle
D.
Brake pedal
E.
ABS warning lamp, brake warning
lamp, VDC warning lamp, VDC OFF
indicator lamp (in combination
meter)
F.
Back of spiral cable assembly
G.
Rear axle housing
Component
Reference/Function
ABS actuator and electric unit (control unit)
BRC-12, "ABS Actuator and Electric Unit (Control Unit)"
Wheel sensor
BRC-11, "Wheel Sensor and Sensor Rotor"
Stop lamp switch
Brake pedal position switch
BRC-13, "Brake Pedal Position Switch"
Steering angle sensor
BRC-13, "Steering Angle Sensor"
Yaw rate/side/decel G sensor
BRC-13, "Yaw Rate/Side/Decel G Sensor"
VDC OFF switch
Brake fluid level switch
BRC-13, "Brake Fluid Level Switch"
Parking brake switch
BRC-13, "Parking Brake Switch"
VDC warning lamp
ABS warning lamp
Brake warning lamp
VDC OFF indicator lamp
ECM
Mainly transmits the following signals to ABS actuator and elec-
tric unit (control unit) via CAN communication.
• Accelerator pedal position signal
• Engine speed signal
Mainly receives the following signals from ABS actuator and
electric unit (control unit) via CAN communication.
• Target throttle position signal
TCM
*1
Mainly transmits the following signals to ABS actuator and elec-
tric unit (control unit) via CAN communication.
• N range signal
• P range signal
• R range signal
• Current gear position signal
AWD control module
*2
Mainly transmits the following signals to ABS actuator and elec-
tric unit (control unit) via CAN communication.
• Current AWD mode signal
BRC-12
< SYSTEM DESCRIPTION >
[WITH VDC]
COMPONENT PARTS
• Downsize and weight reduction is aimed. IC for detection portion
and magnet for sensor rotor are adopted.
• Power supply is supplied to detection portion so that magnetic field
line is read. Magnetic field that is detected is converted to current
signal.
• When sensor rotor rotates, magnetic field changes. Magnetic field
change is converted to current signals (rectangular wave) and is
transmitted to ABS actuator and electric unit (control unit). Change
of magnetic field is proportional to wheel speed.
ABS Actuator and Electric Unit (Control Unit)
INFOID:0000000012199654
Electric unit (control unit) is integrated with actuator and comprehensively controls VDC function, TCS func-
tion, ABS function, EBD function and brake limited slip differential (BLSD) function.
ELECTRIC UNIT (CONTROL UNIT)
• Brake fluid pressure, engine and transaxle are controlled according to signals from each sensor.
• If malfunction is detected, the system enters fail-safe mode.
ACTUATOR
The following components are integrated with ABS actuator.
Pump
Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure.
Motor
Activates the pump according to signals from ABS actuator and electric unit (control unit).
Motor Relay
Operates the motor ON/OFF according to signals from ABS actuator and electric unit (control unit).
Actuator Relay (Main Relay)
Operates each valve ON/OFF according to signals from ABS actuator and electric unit (control unit).
ABS IN Valve
Switches the fluid pressure line to increase or hold according to signals from control unit.
NOTE:
Valve is a solenoid valve.
ABS OUT Valve
Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.
NOTE:
Valve is a solenoid valve.
Cut Valve 1, Cut Valve2
Shuts off the ordinary brake line from master cylinder, when VDC function, TCS function and brake limited slip
differential (BLSD) function are activated.
Suction Valve 1, Suction Valve 2
Supplies the brake fluid from master cylinder to the pump, when VDC function, TCS function and brake limited
slip differential (BLSD) function are activated.
Inlet Valve
Brake fluid sucked from the reservoir by the pump does not backflow.
NOTE:
Valve is a check valve.
Outlet Valve
Brake fluid discharged from the pump does not backflow.
NOTE:
Valve is a check valve.
Return Check Valve
Returns the brake fluid from brake caliper to master cylinder by bypassing orifice of each valve when brake is
released.
JPFIC0131GB
COMPONENT PARTS
BRC-13
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Reservoir
Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreases when
decreasing pressure of brake caliper.
Stop Lamp Switch
INFOID:0000000012199655
Detects the operation status of brake pedal and transmits converted electric signal to ABS actuator and elec-
tric unit (control unit).
Brake Pedal Position Switch
INFOID:0000000012199656
Detects the operation status of brake pedal and transmits converted electric signal to ABS actuator and elec-
tric unit (control unit).
Steering Angle Sensor
INFOID:0000000012199657
Detects the following information and transmits steering angle signal to ABS actuator and electric unit (control
unit) via CAN communication.
• Steering wheel rotation amount
• Steering wheel rotation angular velocity
• Steering wheel rotation direction
Yaw Rate/Side/Decel G Sensor
INFOID:0000000012199658
Calculates the following information that affects the vehicle, and transmits a signal to ABS actuator and elec-
tric unit (control unit) via communication lines.
• Vehicle rotation angular velocity (yaw rate signal)
• Vehicle lateral acceleration (side G signal) and longitudinal acceleration (decel G signal)
VDC OFF Switch
INFOID:0000000012199659
• This is an integrated switch with switches for other functions.
• Non-operational status or standby status of the following functions can be selected using VDC OFF switch.
VDC OFF indicator lamp indicates the operation status of function. (ON: Non-operational status, OFF:
Standby status)
- VDC function
NOTE:
Brake limited slip differential (BLSD) function control operates.
- TCS function
• VDC OFF indicator lamp turns OFF (standby status) when the engine is started again after it is stopped once
while VDC OFF indicator lamp is ON (non-operational status).
Brake Fluid Level Switch
INFOID:0000000012199660
Detects the brake fluid level in reservoir tank and transmits converted electric signal from combination meter to
ABS actuator and electric unit (control unit) via CAN communication, when brake fluid level is the specified
level or less.
Parking Brake Switch
INFOID:0000000012199661
Detects the operation status of parking brake switch and transmits converted electric signal from combination
meter to ABS actuator and electric unit (control unit).
BRC-14
< SYSTEM DESCRIPTION >
[WITH VDC]
SYSTEM
SYSTEM
System Description
INFOID:0000000012199662
• The system switches fluid pressure of each brake caliper to increase, to hold or to decrease according to
signals from control unit in ABS actuator and electric unit (control unit). This control system is applied to
VDC function, TCS function, ABS function, EBD function and brake limited slip differential (BLSD) function.
• Fail-safe function is available for each function and is activated by each function when system malfunction
occurs.
SYSTEM DIAGRAM
NOTE:
• TCM is CVT models only.
• AWD control module is AWD models only.
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
JSFIA0645GB
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