Nissan Versa Sedan. Manual — part 106
SYSTEM
BRC-17
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
Brake Pedal Applied or ABS Function Operating (Pressure Increases)
Front RH brake caliper
• When the cut valve 1 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.
Front LH brake caliper
• When the cut valve 2 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.
Rear RH wheel cylinder
• When the cut valve 2 and the ABS IN valve opens, brake fluid is supplied to the rear RH wheel cylinder from
the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.
Rear LH wheel cylinder
• When the cut valve 1 and the ABS IN valve opens, brake fluid is supplied to the rear LH wheel cylinder from
the master cylinder through the ABS IN valve. Brake fluid does not flow into the reservoir because the ABS
OUT valve is closed.
JSFIA0679GB
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 and each wheel cylinder
(fluid pressure)
—
Pressure increases
BRC-18
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
SYSTEM
ABS Function Starts Operating (Pressure Holds)
Front RH brake caliper
• 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.
Front LH brake caliper
• 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.
Rear RH wheel cylinder
• Since the ABS IN valve and the ABS OUT valve are closed, the rear RH wheel cylinder, master cylinder, and
reservoir are blocked. This maintains fluid pressure applied on the rear RH wheel cylinder.
Rear LH wheel cylinder
• Since the ABS IN valve and the ABS OUT valve are closed, the rear LH wheel cylinder, master cylinder, and
reservoir are blocked. This maintains fluid pressure applied on the rear LH wheel cylinder.
JSFIA0680GB
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)
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 and each wheel cylinder
(fluid pressure)
—
Pressure holds
SYSTEM
BRC-19
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
M
A
B
BRC
N
O
P
ABS Function Operating (Pressure Decreases)
Front RH brake caliper
• 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.
Front LH brake caliper
• 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.
Rear RH wheel cylinder
• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the rear RH
wheel cylinder is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.
Rear LH wheel cylinder
• Since the ABS IN valve is closed and the ABS OUT valve is opened, fluid pressure applied on the rear LH
wheel cylinder is supplied to the reservoir through the ABS OUT valve. This fluid pressure decreases when
sent to the master cylinder by the pump.
JSFIA0681GB
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 and each wheel cylinder
(fluid pressure)
—
Pressure decreases
BRC-20
< SYSTEM DESCRIPTION >
[VDC/TCS/ABS]
SYSTEM
ABS Function Operating (Pressure Increases)
Front RH brake caliper
• Brake fluid is supplied to the front 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 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).
Front LH brake caliper
• Brake fluid is supplied to the front 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 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).
Rear RH wheel cylinder
• Brake fluid is supplied to the rear RH wheel cylinder 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 RH wheel cylinder 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).
Rear LH wheel cylinder
• Brake fluid is supplied to the rear LH wheel cylinder 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
JSFIA0679GB
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 and each wheel cylinder
(fluid pressure)
—
Pressure increases
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