1997 SUBARU LEGACY Service Repair Manual

Page 1361 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0996
6) Remove nuts and bolt which secure hydraulic unit
bracket, and remove hydraulic unit from engine compart-
ment.
CAUTION:
Hydraulic unit cannot be disassembled. Do not
attempt to loosen bolt

Page 1362 of 3342

SUBARU LEGACY 1997  Service Repair Manual B: INSPECTION
1) Check connected and fixed condition of connector.
2) Check valve relay and motor relay for discontinuity or
short circuits.
Condition Terminal number Standard Diagram Terminal locatio

Page 1363 of 3342

SUBARU LEGACY 1997  Service Repair Manual 4) Bleed air from the pressure gauges.
5) Perform ABS sequence control.
<Ref. to 4-4 [W15D0].>
6) When the hydraulic unit begins to work, and first the FL
side performs decompression, holding, and com

Page 1364 of 3342

SUBARU LEGACY 1997  Service Repair Manual G4M0462
2. CHECKING THE HYDRAULIC UNIT ABS
OPERATION WITH BRAKE TESTER
1) In the case of AWD AT vehicles, install a spare fuse with
the FWD connector in the engine compartment to simulate
FWD vehicles

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SUBARU LEGACY 1997  Service Repair Manual D: ABS SEQUENCE CONTROL
1) Under the ABS sequence control, after the hydraulic
unit solenoid valve is driven, the operation of the hydraulic
unit can be checked by means of the brake tester or pres-
s

Page 1366 of 3342

SUBARU LEGACY 1997  Service Repair Manual B4M0997
5) The message shown in the figure is displayed.
B4M0998
6) The message shown in the figure is displayed as fol-
lows:
(1) When using the brake tester, depress brake pedal
with braking force o

Page 1367 of 3342

SUBARU LEGACY 1997  Service Repair Manual 3. CONDITIONS FOR COMPLETION OF ABS
SEQUENCE CONTROL
When the following conditions develop, the ABS sequence
control stops and ABS operation is returned to the normal
control mode.
1) When the speed o

Page 1368 of 3342

SUBARU LEGACY 1997  Service Repair Manual 4. CONDITIONS FOR ABS SEQUENCE CONTROL
B4M1001A
NOTE:
When select monitor is used, control operation starts at
point A. The patterns from IGN key ON to the point A show
that operation is started by d