Nissan Juke (2016 year). Service Repair Manual — part 53
SYSTEM
BRC-17
< SYSTEM DESCRIPTION >
[WITH VDC]
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BRC
N
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valve. For the right caliper, brake fluid pressure is maintained because the pressurization is unnecessary.
The pressurization for the right caliper is controlled separately from the left caliper.
When VDC Function, TSC Function and Brake Limited Slip Differential (BLSD) Function is Starts Operating (During
Pressure Holds)
During pressure front RH brake caliper holds
• Since the cut valve 2 and the suction valve 2 are closed, the front RH brake caliper, master cylinder, and res-
ervoir are blocked. This maintains fluid pressure applied on the front RH brake caliper. The pressurization for
the left caliper is controlled separately from the right caliper.
During pressure front LH brake caliper holds
• Since the cut valve 1 and the suction valve 1 are closed, the front LH brake caliper, master cylinder, and res-
ervoir are blocked. This maintains fluid pressure applied on the front LH brake caliper. The pressurization for
the right caliper is controlled separately from the left caliper.
During pressure rear RH brake caliper holds
• Since the cut valve 1 and the suction valve 1 are closed, the rear RH brake caliper, master cylinder, and res-
ervoir are blocked. This maintains fluid pressure applied on the rear RH brake caliper. The pressurization for
the left caliper is controlled separately from the right caliper.
During pressure rear LH brake caliper holds
JSFIA0647GB
Name
Not activated
During pressure holds
Cut valve 1
Power supply is not supplied (open)
Power supply is supplied (close)
Cut valve 2
Power supply is not supplied (open)
Power supply is supplied (close)
Suction valve 1
Power supply is not supplied (close)
Power supply is not supplied (close)
Suction valve 2
Power supply is not supplied (close)
Power supply is not supplied (close)
ABS IN valve
Power supply is not supplied (open)
Power supply is not supplied (open)
ABS OUT valve
Power supply is not supplied (close)
Power supply is not supplied (close)
Each brake caliper (fluid pressure)
—
Pressure holds
Revision: November 2015
2016 JUKE
BRC-18
< SYSTEM DESCRIPTION >
[WITH VDC]
SYSTEM
• Since the cut valve 2 and the suction valve 2 are closed, the rear LH brake caliper, master cylinder, and res-
ervoir are blocked. This maintains fluid pressure applied on the rear LH brake caliper. The pressurization for
the right caliper is controlled separately from the left caliper.
When VDC Function, TSC Function and Brake Limited Slip Differential (BLSD) Function is in Operation (During Pres-
sure Decreases)
During pressure front RH brake caliper decreases
• Since the suction valve 2 and the ABS OUT valve close and the cut valve 2 and the ABS IN valve open, the
fluid pressure applied on the front RH brake caliper is reduced by supplying the fluid pressure to the master
cylinder via the ABS IN valve and the cut valve 2. The pressurization for the right caliper is controlled sepa-
rately from the left caliper.
During pressure front LH brake caliper decreases
• Since the suction valve 1 and the ABS OUT valve close and the cut valve 1 and the ABS IN valve open, the
fluid pressure applied on the front LH brake caliper is reduced by supplying the fluid pressure to the master
cylinder via the ABS IN valve and the cut valve 2. The pressurization for the left caliper is controlled sepa-
rately from the right caliper.
During pressure rear RH brake caliper decreases
• Since the suction valve 1 and the ABS OUT valve close and the cut valve 1 and the ABS IN valve open, the
fluid pressure applied on the rear RH brake caliper is reduced by supplying the fluid pressure to the master
cylinder via the ABS IN valve and the cut valve 2. The pressurization for the right caliper is controlled sepa-
rately from the left caliper.
JSFIA0648GB
Name
Not activated
During pressure decreases
Cut valve 1
Power supply is not supplied (open)
Power supply is not supplied (open)
Cut valve 2
Power supply is not supplied (open)
Power supply is not supplied (open)
Suction valve 1
Power supply is not supplied (close)
Power supply is not supplied (close)
Suction valve 2
Power supply is not supplied (close)
Power supply is not supplied (close)
ABS IN valve
Power supply is not supplied (open)
Power supply is not supplied (open)
ABS OUT valve
Power supply is not supplied (close)
Power supply is not supplied (close)
Each brake caliper (fluid pressure)
—
Pressure decreases
Revision: November 2015
2016 JUKE
SYSTEM
BRC-19
< SYSTEM DESCRIPTION >
[WITH VDC]
C
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B
BRC
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During pressure rear LH brake caliper decreases
• Since the suction valve 2 and the ABS OUT valve close and the cut valve 2 and the ABS IN valve open, the
fluid pressure applied on the rear LH brake caliper is reduced by supplying the fluid pressure to the master
cylinder via the ABS IN valve and the cut valve 2. The pressurization for the left caliper is controlled sepa-
rately from the right caliper.
Component Parts and Function
VALVE OPERATION (ABS FUNCTION AND EBD FUNCTION)
The control unit built in the ABS actuator and electric unit (control unit) controls fluid pressure of the brake cal-
ipers, respectively, by operating each valve.
When Brake Pedal is Applied or ABS Function is in Operation (During Pressure Increases)
Component
Function
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).
Cut valve 1
Cut valve 2
Shuts off the ordinary brake line from master cylinder.
Suction valve 1
Suction valve 2
Supplies the brake fluid from master cylinder to the pump.
ABS IN valve
Switches the fluid pressure line to increase or hold according to signals from control unit.
ABS OUT valve
Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.
Inlet valve
Brake fluid sucked from the reservoir by the pump does not backflow.
Outlet valve
Brake fluid discharged from the pump does not backflow.
Return check valve
Returns the brake fluid from brake caliper and wheel cylinder to master cylinder by bypassing orifice
of each valve when brake is released.
Reservoir
Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreas-
es when decreasing pressure of brake caliper and wheel cylinder.
JSFIA0649GB
Name
Not activated
During pressure increases
Cut valve 1
Power supply is not supplied (open)
Power supply is not supplied (open)
Cut valve 2
Power supply is not supplied (open)
Power supply is not supplied (open)
Revision: November 2015
2016 JUKE
BRC-20
< SYSTEM DESCRIPTION >
[WITH VDC]
SYSTEM
During pressure front RH brake caliper increases
• When the cut valve 2 and the ABS IN valve opens, brake fluid is supplied to the front RH brake caliper from
the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.
During pressure front LH brake caliper increases
• When the cut valve 1 and the ABS IN valve opens, brake fluid is supplied to the front LH brake caliper from
the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.
During pressure rear RH brake caliper increases
• When the cut valve 1 and the ABS IN valve opens, brake fluid is supplied to the rear RH brake caliper from
the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.
During pressure rear LH brake caliper increases
• When the cut valve 2 and the ABS IN valve opens, brake fluid is supplied to the rear LH brake caliper from
the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.
When ABS Function is Starts Operating (During Pressure Holds)
Suction valve 1
Power supply is not supplied (close)
Power supply is not supplied (close)
Suction valve 2
Power supply is not supplied (close)
Power supply is not supplied (close)
ABS IN valve
Power supply is not supplied (open)
Power supply is not supplied (open)
ABS OUT valve
Power supply is not supplied (close)
Power supply is not supplied (close)
Each brake caliper (fluid pressure)
—
Pressure increases
Name
Not activated
During pressure increases
JSFIA0650GB
Name
Not activated
During pressure holds
Cut valve 1
Power supply is not supplied (open)
Power supply is not supplied (open)
Cut valve 2
Power supply is not supplied (open)
Power supply is not supplied (open)
Suction valve 1
Power supply is not supplied (close)
Power supply is not supplied (close)
Revision: November 2015
2016 JUKE
SYSTEM
BRC-21
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
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BRC
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During pressure front RH brake caliper holds
• Since the ABS IN valve and the ABS OUT valve are closed, the front RH brake caliper, master cylinder, and
reservoir are blocked. This maintains fluid pressure applied on the front RH brake caliper.
During pressure front LH brake caliper holds
• Since the ABS IN valve and the ABS OUT valve are closed, the front LH brake caliper, master cylinder, and
reservoir are blocked. This maintains fluid pressure applied on the front LH brake caliper.
During pressure rear RH brake caliper holds
• Since the ABS IN valve and the ABS OUT valve are closed, the rear RH brake caliper, master cylinder, and
reservoir are blocked. This maintains fluid pressure applied on the rear RH brake caliper.
During pressure rear LH brake caliper holds
• Since the ABS IN valve and the ABS OUT valve are closed, the rear LH brake caliper, master cylinder, and
reservoir are blocked. This maintains fluid pressure applied on the rear LH brake caliper.
When ABS Function is in Operation (During Pressure Decreases)
Suction valve 2
Power supply is not supplied (close)
Power supply is not supplied (close)
ABS IN valve
Power supply is not supplied (open)
Power supply is supplied (close)
ABS OUT valve
Power supply is not supplied (close)
Power supply is not supplied (close)
Each brake caliper (fluid pressure)
—
Pressure holds
Name
Not activated
During pressure holds
JSFIA0651GB
Name
Not activated
During pressure decreases
Cut valve 1
Power supply is not supplied (open)
Power supply is not supplied (open)
Cut valve 2
Power supply is not supplied (open)
Power supply is not supplied (open)
Suction valve 1
Power supply is not supplied (close)
Power supply is not supplied (close)
Suction valve 2
Power supply is not supplied (close)
Power supply is not supplied (close)
ABS IN valve
Power supply is not supplied (open)
Power supply is supplied (close)
ABS OUT valve
Power supply is not supplied (close)
Power supply is supplied (open)
Each brake caliper (fluid pressure)
—
Pressure decreases
Revision: November 2015
2016 JUKE
BRC-22
< SYSTEM DESCRIPTION >
[WITH VDC]
SYSTEM
During pressure front RH brake caliper decreases
• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the front RH
brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.
During pressure front LH brake caliper decreases
• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the front LH
brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.
During pressure rear RH brake caliper decreases
• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the rear RH
brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.
During pressure rear LH brake caliper decreases
• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the rear LH
brake caliper is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.
When ABS Function is in Operation (During Pressure Increases)
During pressure front RH brake caliper increases
JSFIA0649GB
Name
Not activated
During pressure increases
Cut valve 1
Power supply is not supplied (open)
Power supply is not supplied (open)
Cut valve 2
Power supply is not supplied (open)
Power supply is not supplied (open)
Suction valve 1
Power supply is not supplied (close)
Power supply is not supplied (close)
Suction valve 2
Power supply is not supplied (close)
Power supply is not supplied (close)
ABS IN valve
Power supply is not supplied (open)
Power supply is not supplied (open)
ABS OUT valve
Power supply is not supplied (close)
Power supply is not supplied (close)
Each brake caliper (fluid pressure)
—
Pressure increases
Revision: November 2015
2016 JUKE
SYSTEM
BRC-23
< SYSTEM DESCRIPTION >
[WITH VDC]
C
D
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G
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A
B
BRC
N
O
P
• Brake fluid is supplied to the front RH brake caliper from the master cylinder through the cut valve 2 and the
ABS IN valve. Since the suction valve 2 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the front RH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).
During pressure front LH brake caliper increases
• Brake fluid is supplied to the front LH brake caliper from the master cylinder through the cut valve 1 and the
ABS IN valve. Since the suction valve 1 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the front LH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).
During pressure rear RH brake caliper increases
• Brake fluid is supplied to the rear RH brake caliper from the master cylinder through the cut valve 1 and the
ABS IN valve. Since the suction valve 1 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the rear RH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).
During pressure rear LH brake caliper increases
• Brake fluid is supplied to the rear LH brake caliper from the master cylinder through the cut valve 2 and the
ABS IN valve. Since the suction valve 2 and the ABS OUT valve is closed, the fluid does not flow into the
reservoir. The amount of brake fluid supplied to the rear LH brake caliper from the master cylinder is con-
trolled according to time that the ABS IN valve is not energized (time that the ABS IN valve is open).
When Brake Release
JSFIA0652GB
Name
Not activated
During brake release
Cut valve 1
Power supply is not supplied (open)
Power supply is not supplied (open)
Cut valve 2
Power supply is not supplied (open)
Power supply is not supplied (open)
Suction valve 1
Power supply is not supplied (close)
Power supply is not supplied (close)
Suction valve 2
Power supply is not supplied (close)
Power supply is not supplied (close)
ABS IN valve
Power supply is not supplied (open)
Power supply is not supplied (open)
ABS OUT valve
Power supply is not supplied (close)
Power supply is not supplied (close)
Each brake caliper (fluid pressure)
—
Pressure decreases
Revision: November 2015
2016 JUKE
BRC-24
< SYSTEM DESCRIPTION >
[WITH VDC]
SYSTEM
During front RH brake caliper release
• Brake fluid is supplied to the front RH brake caliper through the return check valve of the ABS IN valve and
the cut valve 2, and returns to the master cylinder.
During front LH brake caliper release
• Brake fluid is supplied to the front LH brake caliper through the return check valve of the ABS IN valve and
the cut valve 1, and returns to the master cylinder.
During rear RH brake caliper release
• Brake fluid is supplied to the rear RH brake caliper through the return check valve of the ABS IN valve and
the cut valve 1, and returns to the master cylinder.
During rear LH brake caliper release
• Brake fluid is supplied to the rear LH brake caliper through the return check valve of the ABS IN valve and
the cut valve 2, and returns to the master cylinder.
Component Parts and Function
CONDITION FOR TURN ON THE WARNING LAMP
Turns ON when ignition switch turns ON and turns OFF when the system is normal, for bulb check purposes.
CONDITION FOR TURN ON THE INDICATOR LAMP
Component
Function
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).
Cut valve 1
Cut valve 2
Shuts off the ordinary brake line from master cylinder.
Suction valve 1
Suction valve 2
Supplies the brake fluid from master cylinder to the pump.
ABS IN valve
Switches the fluid pressure line to increase or hold according to signals from control unit.
ABS OUT valve
Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.
Inlet valve
Brake fluid sucked from the reservoir by the pump does not backflow.
Outlet valve
Brake fluid discharged from the pump does not backflow.
Return check valve
Returns the brake fluid from brake caliper and wheel cylinder to master cylinder by bypassing orifice
of each valve when brake is released.
Reservoir
Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreas-
es when decreasing pressure of brake caliper and wheel cylinder.
Condition (status)
ABS warning lamp
Brake warning lamp
VDC warning lamp
Ignition switch OFF
OFF
OFF
OFF
For approx. 1 second after the ignition switch is turned ON
ON
ON
ON
Approx. 1 second after ignition switch is turned ON (when the sys-
tem is in normal operation)
OFF
OFF
OFF
After engine starts
OFF
OFF
OFF
When parking brake operates (parking brake switch ON)
OFF
ON
OFF
When brake fluid is less than the specified level (brake fluid level
switch ON)
OFF
ON
OFF
VDC function is malfunctioning
OFF
OFF
ON
TCS function is malfunctioning
OFF
OFF
ON
ABS function is malfunctioning
ON
OFF
ON
EBD function is malfunctioning
ON
ON
ON
Brake limited slip differential (BLSD) function is malfunctioning
OFF
OFF
ON
VDC function is operating
OFF
OFF
Blinking
TCS function is operating
OFF
OFF
Blinking
Revision: November 2015
2016 JUKE
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