Nissan Rogue. Manual - part 151

SYSTEM

BRC-15

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

When rear RH wheel caliper pressure holds

• Motor is activated. Brake fluid is pressurized by pump and is sent to primary line through cut valve 1. At the

same time, because ABS IN valve and ABS OUT vale are closed, fluid pressure holds.

When rear LH wheel caliper pressure holds

• Motor is activated. Brake fluid is pressurized by pump and is sent to secondary line through cut valve 2. At

the same time, because ABS IN valve and ABS OUT vale are closed, fluid pressure holds.

ABS is in operation (when pressure decreases)

When front RH wheel caliper pressure decreases

• Being supplied to reservoir through ABS OUT valve, the fluid pressure of brake caliper is decreased.

When front LH wheel caliper pressure decreases

• Being supplied to reservoir through ABS OUT valve, the fluid pressure of brake caliper is decreased.

When rear RH wheel caliper pressure decreases

• Being supplied to reservoir through ABS OUT valve, the fluid pressure of brake caliper is decreased.

When rear LH wheel caliper pressure decreases

• Being supplied to reservoir through ABS OUT valve, the fluid pressure of brake caliper is decreased.

Component Parts and Function

JPFIC0161GB

Name

Not activated

When 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)

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 caliper (fluid pressure)

—

Pressure decreases

BRC-16

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

SYSTEM

VALVE OPERATION (OTHER THAN ABS AND EBD)

Each valve is operated and fluid pressure of brake caliper is controlled.

NOTE:

There is no operation to hold and increase pressure for functions other than ABS and EBD.

When Pressure Increases

Component

FUNCTION

Reservoir

Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreas-
es when decreasing pressure of brake caliper.

Pump

Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure.

Motor

Drives the pump according to signals from control unit.

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.

Return check valve

Returns the brake fluid from brake caliper to master cylinder by bypassing orifice of each valve when 
brake is released.

Cut valve 1
Cut valve 2

Performs the duty control of fluid pressure increased by pump according to signals from control unit.

Pressure Sensor

Detects the brake pedal operation amount.

JPFIC0162GB

SYSTEM

BRC-17

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

When front RH wheel caliper pressure increases

• Motor is activated. Brake fluid from pump is supplied to front RH wheel caliper through ABS IN valve. For

other wheel, ABS IN valve is closed and brakes fluid is not supplied to caliper.

When front LH wheel caliper pressure increases

• Motor is activated. Brake fluid from pump is supplied to front LH wheel caliper through ABS IN valve. For

other wheel, ABS IN valve is closed and brakes fluid is not supplied to caliper.

When rear RH wheel caliper pressure increases

• Motor is activated. Brake fluid from pump is supplied to rear RH wheel caliper through ABS IN valve. For

other wheel, ABS IN valve is closed and brakes fluid is not supplied to caliper.

When rear LH wheel caliper pressure increases

• Motor is activated. Brake fluid from pump is supplied to rear LH wheel caliper through ABS IN valve. For

other wheel, ABS IN valve is closed and brakes fluid is not supplied to caliper.

Name

Not activated

When Pressure Increases

Cut valve 1

Power supply is not supplied (open)

Wheel other than the one that the pressure 
is to be increased: Power supply is not sup-

plied (open)

Only wheel that the pressure is to be in-

creased: Power supply is supplied (close)

Cut valve 2

Power supply is not supplied (open)

Wheel other than the one that the pressure 
is to be increased: Power supply is not sup-

plied (open)

Only wheel that the pressure is to be in-

creased: Power supply is supplied (close)

ABS IN valve

Power supply is not supplied (open)

Only wheel that the pressure is to be in-

creased: Power supply is not supplied 

(open)

Wheel other than the one that the pressure 
is to be increased: Power supply is supplied 

(close)

ABS OUT valve

Power supply is not supplied (close)

Power supply is not supplied (close)

Each caliper (fluid pressure)

—

Pressure increases

BRC-18

< SYSTEM DESCRIPTION >

[VDC/TCS/ABS]

SYSTEM

Released

When front RH wheel caliper pressure decreases

• Being returned to master cylinder through ABS IN valve, fluid pressure of brake caliper is decreased.

When front LH wheel caliper pressure decreases

• Being returned to master cylinder through ABS IN valve, fluid pressure of brake caliper is decreased.

When rear RH wheel caliper pressure decreases

• Being returned to master cylinder through ABS IN valve, fluid pressure of brake caliper is decreased.

When rear LH wheel caliper pressure decreases

• Being returned to master cylinder through ABS IN valve, fluid pressure of brake caliper is decreased.

Component Parts and Function

JPFIC0163GB

Name

Not activated

When 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)

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 supplied (open)

Each caliper (fluid pressure)

—

Pressure decreases

Component

Function

Reservoir

Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreas-
es when decreasing pressure of brake caliper.

Pump

Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure.

Motor

Drives the pump according to signals from control unit.

ABS IN valve

Switches the fluid pressure line to increase or hold according to signals from control unit.