CHASSIS - BRAKE
277CH155
Brake Pedal
Stroke Simulator
Accumulator
(11)
Pump
Accumulator
Pressure Sensor
Port (K)
Port (A)
(1)
(2)
Port (E)
Master
Cylinder
Pressure
Sensor
Port (B)
Port (F)
(6)
Port (J)
(10)
(5)
Port (I)
(9)
Port (D)
(4)
Port (H)
(8)
Port (C)
(3)
Port (G)
(7)
Front Left
Wheel
Cylinder
Pressure
Sensor
Rear Left
Front Right
Wheel
Cylinder
Pressure
Sensor
Rear Right
Increase Mode
CH-63
TRAC not
TRAC Activated
Item
TRAC not
Activated
Increase
Mode
Holding
Mode
Reduction
Mode
(1) (2)
Master Cylinder Cut Solenoid Valve
ON
ON
ON
ON
(1), (2)
Port: (A), (B)
ON
(Close)
ON
(Close)
ON
(Close)
ON
(Close)
(3), (5)
Pressure Appliance
Solenoid Valve
OFF
(Close)
ON
(Half Open*)
OFF
(Close)
OFF
(Close)
F
t
(3), (5)
Port: (C), (E)
(Close)
(Half-Open*)
(Close)
(Close)
Front
Brake
(7), (9)
Pressure Reduction
Solenoid Valve
OFF
(Close)
OFF
(Close)
OFF
(Close)
ON
(Half Open*)
(7), (9)
Port: (G), (I)
(Close)
(Close)
(Close)
(Half-Open*)
Wheel Cylinder Pressure
—
Increase
Hold
Reduction
(4), (6)
Pressure Appliance
Solenoid Valve
OFF
(Close)
OFF
(Close)
OFF
(Close)
OFF
(Close)
R
(4), (6)
Port: (D), (F)
(Close)
(Close)
(Close)
(Close)
Rear
Brake
(8), (10)
Pressure Reduction
Solenoid Valve
OFF
(Open)
OFF
(Open)
OFF
(Open)
OFF
(Open)
(8), (10)
Port: (H), (J)
(Open)
(Open)
(Open)
(Open)
Wheel Cylinder Pressure
—
—
—
—
(11)
Stroke Simulator Cut Solenoid Valve
ON (Open)
ON (Open)
ON (Open)
ON (Open)
(11)
Port: (K)
ON (Open)
ON (Open)
ON (Open)
ON (Open)
*: The solenoid valve constantly regulates the amount of opening of the port in accordance with the use
conditions in order to control the fluid pressure.