Lexus SC300 / Lexus SC400. Manual — part 256

ANTI–LOCK BRAKE SYSTEM (ABS)

BR0EU–04

DESCRIPTION

ABS is a brake system which controls the brake cylinder hydraulic pressure to all 4 wheels during sudden
braking and braking on slippery road surfaces, preventing the wheels from locking. ABS provides the
following benefits:
(1) Enables steering round an obstacle with a greater degree of certainty even when panic braking.
(2) Enables stopping during panic braking while keeping the effect upon stability and steerability to a mini-

mum, even on curves.

In case a malfunction occurs, a diagnosis function and fail–safe system have been adopted for the ABS.

SYSTEM PARTS LOCATION

BR02L–05

BR–52

–

BRAKE SYSTEM

ANTI–LOCK BRAKE SYSTEM (ABS)

BR0EV–04

HYDRAULIC SYSTEM DIAGRAM
w/o TRAC:

–

BRAKE SYSTEM

ANTI–LOCK BRAKE SYSTEM (ABS)

BR–53

w/ TRAC:

BR–54

–

BRAKE SYSTEM

ANTI–LOCK BRAKE SYSTEM (ABS)

BR0EW–05

WIRING DIAGRAM
w/o TRAC:

–

BRAKE SYSTEM

ANTI–LOCK BRAKE SYSTEM (ABS)

BR–55