Subaru IMPREZA 2002 Service Manual page 171

I
ABS CONTROL MODULE AND HYDRAULIC CONTROL UNIT (ABSCM&H/U)
ABS
Front wheel
3,432 kPa
Initial value (35 kgf/cm2, 498
When 490 kPa
decom- (5 kgf/cm2, 71 psi)
pressed or less
When (35 kgf/cm2, 498
Psi)
3,432 kPa
compressed Psi)
or more
Rear wheel
3,432 kPa
(35 kgf/cm2, 498
490 kPa
(5 kgf/cm2, 71 psi)
or less
3,432 kPa
(35 kgf/cm2, 498
Psi)
or more
Psi)
~
8) Remove the pressure gauges from FL and FR
caliper bodies.
9 ) Remove the air bleeder screws from the RL and
RR caliper bodies.
10) Connect the air bleeder screws to the FL and
FR caliper bodies.
11) Connect two pressure gauges to the RL and
RR caliper bodies.
12) Bleed air from the pressure gauges and the FL
and FR caliper bodies.
13) Perform the ABS sequence control.
<Ref. to ABS-I 1, ABS Sequence Control.>
14) When the hydraulic unit begins to work, at first
the RR side performs decompression, holding, and
compression, and then the RL side performs de-
compression, holding, and compression.
15) Read the values indicated on the pressure
gauges and check if they meet the standard value.
16) After checking, remove the pressure gauges
from caliper bodies.
17) Connect the air bleeder screws to RL and RR
caliper bodies.
18) Bleed air from the brake line.
2.
CHECKING THE HYDRAULIC UNIT ABS
OPERATION
WITH
BRAKE TESTER
1) In the case of AWD AT Non-turbo vehicles, in-
stall a spare fuse with the FWD connector in the
main fuse box to simulate FWD vehicles.
(1) Main fuse box
(2) FWD connector
2) Prepare for operating the ABS sequence control.
<Ref. to ABS-I 1, ABS Sequence Control.>
3) Set the front wheels or rear wheels on the brake
tester and set the select lever's position at "neu-
t ral".
(1) Brake tester
4) Operate the brake tester.
5) Perform ABS sequence control.
<Ref. to ABS-1 1, ABS Sequence Control.>
ABS-9