3-32
DRIVE-CONTROL
COMPONENTS
-
ABS
cFWD>
ACTUATOR
HYDRAULIC UNIT (HU)
l
The HU, elastically supported by the shield plate
at the front left of the engine room, consists
of a motor pump, plunger valve, reservoir and
three solenoid valves.
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The HU, positioned between the brake master
cylinder and each wheel cylinder, is a hydraulic
circuit split into two systems associated with
the normal X pipings when the ABS is inactive.
Solenoid
Wheel
14x0305
N73ZM02AA
When the ABS is active, the motor is operated
d
by a signal from the ABS-ECU to let the pump
generate a hydraulic pressure required to return
fluid against master cylinder pressure. At the
same time, three solenoid valves are operated
to control the hydraulic pressure that acts on
the wheel cylinder.
14FOO54
Solenoid valve and plunger valve
Refer to 1991 3000GT Technical Information Manual (Pub. No. PXSE9001).
Hydraulic unit
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Master cylinder
14FOO54
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