Subaru IMPREZA GD 2007 Series Manual page 3116

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ABS Control Module and Hydraulic Control Unit (ABSCM&H/U)
18) Install the air bleeder screws of RL and RR cal-
iper bodies.
19) Bleed air from the brake system.
2. CHECKING THE HYDRAULIC UNIT ABS
OPERATION WITH THE BRAKE TESTER
1) In the case of non-turbo AT models, install a
spare fuse to the FWD connector in the main fuse
box to simulate a FWD vehicle for the inspection.
(2)
(1)
(1) Main fuse box
(2) FWD connector
NOTE:
For MT and turbo AT models, the AWD circuit can-
not be cut off.
2) Prepare for the ABS sequence control operation.
<Ref. to ABS-10, ABS Sequence Control.>
3) Set the front wheels or rear wheels on the brake
tester and set the select lever position to the "N"
range.
(1) Brake tester
4) Operate the brake tester.
5) Perform ABS sequence control. <Ref. to ABS-
10, ABS Sequence Control.>
6) When the hydraulic unit begins to work, check
ABS00953
the following work sequence.
(1) The FL side performs decompression, hold,
and compression operations in sequence, and
subsequently the FR side repeats the same cycle.
(2) The RR side performs decompression, hold,
and compression operations in sequence, and
subsequently the RL side repeats the same cycle.
7) Read values indicated on the brake tester and
check if the fluctuation of the values between de-
compression and compression meets the standard
values.
Initial value
When
depressurized
When pressurized
8) After checking, press the brake pedal and check
whether any irregular tightness of the brake pedal
can be felt.
ABS-9
(1)
ABS00136
(1)
ABS00137
Front wheel Rear wheel
1,000 N 1,000 N
(100 kgf, 221 lbf) (100 kgf, 221 lbf)
500 N 500 N
(50 kgf, 110 lbf) (50 kgf, 110 lbf)
or less or less
1,000 N 1,000 N
(100 kgf, 221 lbf) (100 kgf, 221 lbf)
or more or more
ABS