Subaru LEGACY 2003 Service Manual page 17

4. CHECKING THE HYDRAULIC UNIT VDC
OPERATION WITH BRAKE TESTER
1) Prepare for operating VDC sequence control.
<Ref. to VDC-19, VDC Sequence Control.>
2) Set the front wheels or rear wheels on the brake
tester and set the select lever's position at "neutral".
( 1 )
(1) Brake tester
(1) Brake tester
3) Operate the brake tester.
4) Perform ABS sequence control.
<Ref. to VDC-16, ABS Sequence Control.>
5) When the hydraulic unit begins to work, check
the following working sequence.
(1) The FL wheel performs decompression,
holding, and compression in sequence, and
subsequently the FR wheel repeats the cycle.
(2) The RR wheel performs decompression,
holding, and compression in sequence, and
subsequently the RL wheel repeats the cycle.
6) Read values indicated on the brake tester and
check if the fluctuation of values, when decom-
pressed and compressed, meet the standard val-
ues.
Front wheel
1,961 N
When
(200 kgf, 441 lb)
compressed
or more
490 N
When
(50 kgf, 110 lb)
decompressed
or less
HYDRAULIC CONTROL UNIT (H/U)
ABS00136
( 1 )
ABS00137
Rear wheel
981 N
(100 kgf, 221 lb)
or more
490 N
(50 kgf, 110 lb)
or less
VDC-15
7) After checking, also check if any irregular brake
pedal tightness is felt.
VDC