SUBARU LEGACY 1997 Service Repair Manual

4-4d
(TyoAJs1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor

1

E

1
21314151617181911011111211311411
JIS671
191201211221
1
23
1
24
1
25
1
26
75129136131
.1
.

-

1

2
t-
94M1261A_

110AJ5
I
CHECKPOOR
CONTACT
IN
CONNECTORS
.

Turn
ignition
switch
to
OFF
.

CHECK
:
Is
there
poor
contact
in
connector
between

ABSCM&HlU
and
G
sensor?
<
Ref
.
to
FORE-

WORD
[T3C1]
.*10
>

,mss
:
Repair
connector
.

No
:
Go
to
step
10AJ6
.

diagnosis
still
bung
output?

,mss
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
10AJ7
.
(
10AJ6
I
CHECK
ABSCM&H/U
.

1)
Connect
all
connectors
.

2)
Erasethe
memory
.

3)
Perform
inspection
mode
.

4)
Read
out
the
trouble
code
.

CHECK
:
Is
the
same
trouble
code
as
in
the
current

10AJ7
CHECK
ANY

I
APPEARANCE

.THER
TROUBLE
CODES

CHECK
;
Are
other
trouble
codes
being
output?

vES
:
Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

No
:
A
temporary
poor
contact
.

10AJ8
I
pUT
HAR
NESS
AND
GROUND
HARNE
SS
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
ABSCM&H/U
.

3)
Measure
resistance
between
ABSCM&H/U
connector

terminals
.

Connector
&
terminal

(F49)
No
.
30
-
No
.
28
:

CHECK
:
Is
theresistance
between
4
.3
and
4
.9
kS2?

Go
to
step
f0AJ9
.

No
:
Repair
harness/connector
between
G
sensor
and

ABSCM&H/U
.

206

BRAKES
[ABS
5
.31
TYPE]
[T10AJ11]
4-4d

10
.
Diagnostics
Chart
withSelect
Monitor

B4M0915

Front
\

0

84M0917A

0

Front

r
--

B4M0918A

1
10AJ9
I
CHECKG
SENSOR
.

1)
Remove
console
box
.

2)
Remove
G
sensorfrom
vehicle
.

3)
Connect
connector
to
G
sensor
.

4)
Connect
connector
to
ABSCM&H/U
.

5)
Turn
ignition
switch
to
ON
.

6)
Measure
voltage
between
G
sensor
connector
termi-

nals
.

Connector
&
terminal
(P11)
No
.
2
(+)
-
No
.
1
(-)
:

CHECK
;
Is
thevoltage
between
2
.1
and
2
.5
V
when
G

sensor
is
horizontal?

vES
:
Go
to
step
10AJ10
.

No
:
Replace
G
sensor
.
I
10AJ10
1
CHECK
G
SENSOR
.

Measure
voltage
between
G
sensor
connector
terminals
.

Connector
&
terminal
(P11)
No
.
2
(+)
-
No
.
1
(-)
:

CHECK
;
Is
thevoltage
between
3
.7
and
4
.1
V
when
G

sensor
is
inclined
forwards
to
90°?

Go
to
step
10AJ11
.

No
:
Replace
G
sensor
.

I10AJ77
(CHECK
G
SENSOR
.

Measure
voltage
between
G
sensor
connector
terminals
.

Connector
&
terminal
(P11)
No
.
2
(+)
-
No
.
1
(
)
:

CHECK
:
Is
thevoltage
between
0
.5
and
0
.9
V
when
G

sensor
is
inclined
backwards
to
90°?

,rES
:
Go
to
step
10AJ12
.

No
:
Replace
G
sensor
.

207

4-4d
[T1oAJ12]
BRAKES
[ABS
5
.31
TYPE]

10
.
Diagnostics
Chart
withSelect
Monitor

[
-k-
VO
J12
I
CHECK
ABSCM&H/U
.

1)
Turn
ignition
switch
to
OFF
.

2)
Connect
all
connectors
.

3)
Erasethe
memory
.

4)
Perform
inspection
mode
.

5)
Read
out
the
trouble
code
.

CHECK
:
is
the
same
trouble
code
as
in
the
current

diagnosis
still
being
output?

.rES
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
10AJ13
.

10AJ13
CHECK
ANY
OTHER
TROUBLE
CODES

APPEARANCE
.

CHECK
;
J
Are
other
trouble
codes
being
output?

,rES
:
Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

No
:
A
temporary
poor
contact
.

208

BRAKES
[ABS
5
.31
TYPE]
[T11A0]
4-4d

11
.
General
Diagnostics
Table

11
.
General
Diagnostics
Table

A
:
SYMPTOMSAND
PROBABLE
CAUSES

Symptom
Probable
faulty
units/parts

9
ABSCM&H/U
(solenoid
valve)
e
ABS
sensor
e
Brake
(caliper
&
piston,
pads)
Vehicle
pulls
to
either
side
.
*
Wheel
alignment
e
Tire
specifications,
tire
wear
and
air
pressures
9
Incorrect
wiringorpiping
connections
Vehicle
instability
during
braking
9Road
surface(uneven,
camber)

e
ABSCM&H/U
(solenoid
valve)
e
ABS
sensor
Vehicle
spins
.
*
Brake
(pads)
9
Tire
specifications,
tire
wear
and
air
pressures
9
Incorrect
wiring
orpiping
connections

9
ABSCM&H/U
(solenoid
valve)
Brake
(pads)
Long
braking/stopping
distance
*
Air
in
brake
line
9Tire
specifications,
tire
wear
and
air
pressures
a
Incorrect
wiringor
piping
connections

9
ABSCM&H/U
(solenoid
valve,
motor)
Wheel
locks
.
*
ABS
sensor
*
Incorrect
wiringorpiping
connections

9
ABSCM&H/U
(solenoidvalve)9
ABS
sensor
Master
cylinder
Brake
dragging
*
Brake
(caliper
8
piston)
Parking
brake
Poor
braking
*
Axle
&
wheels
Brake
pedal
play

Long
brake
pedal
stroke
9
Air
in
brake
line
Brake
pedal
play

*
Suspension
play
or
fatigue
(reduced
damping)
Vehicle
pitching
*
Incorrect
wiring
or
piping
connections
Road
surface
(uneven)

9
ABSCM&H/U
(solenoid
valve)
9
ABS
sensor

Unstable
or
uneven
braking
~
Brake
(caliper
&
piston,
pads)
~Tire
specifications,
tire
wear
and
air
pressures
e
Incorrect
wiring
orpiping
connections
*
Road
surface
(uneven)

Excessive
pedal
vibration
*
Incorrect
wiring
or
piping
connections
Road
surface
(uneven)

*
ABSCM&H/U
(mount
bushing)
Noise
from
ABSCM&H/U
*
ABS
sensor
Brake
piping

a
RBSCM&
H/U
(mount
bushing)
e
ABS
sensor

Vibration
and/or
noise
(while
*
Master
cylinder

driving
on
slippery
roads)
Noise
from
front
of
vehiclee
Brake
(caliper
&
piston,
pads,
rotor)
Brake
piping
e
Brake
booster
&
check
valve
*
Suspension
playor
fatigue

e
ABS
sensor
a
Brake
(caliper
&
piston,
pads,
rotor)
Noise
from
rear
of
vehicle
9
Parking
brake
Brake
piping
e
Suspension
playor
fatigue

209

4-4d
[T»B1]
BRAKES
[ABS
5
.3i
TYPE]

11
.
General
Diagnostics
Table

B
:
CHECKING
THE
HYDRAULIC
UNIT

OPERATION

11
B7
PREPARING
THE
BRAKE
TESTER
.

CHECK
;
Is
the
brake
tester
available?

ves
:
CHECKING
THE
HYDRAULIC
UNIT
ABS
OPERA-

TION
WITH
BRAKE
TESTER
<
Ref
.
to
4-4

[W25C2]
.*10
>

nio
:
CHECKING
THE
HYDRAULIC
UNIT
ABS
OPERA-

TION
BY
PRESSURE
GAUGE<
Ref
.
to
4-4

[W25C1
]
.*10
>

210

6-3
[113soa1
WIRING
DIAGRAM

6
.
Wiring
Diagram

6
.
Wiring
Diagram
4
.
ANTI-LOCK
BRAKE
SYSTEM

CombinationStop
light
To
Power
Supply
Routing
meter
switch

FB-5
SBF-6FB-35FB-22FB-30FB-20
ABS
indicator

FUSE
No
.19
SBF
HOLDER
FUSE
No
.18
FUSE
No
.15
FUSE
k12
FUSE
No
.15

c
:
i14

*
:
With
cruise
control

D
T1

+
:
B65
~~'

B64

i1
B37

w
----------------

r----------
--

--
-----------

F73

(Black)
B65
(Black)
F49
B64

12
456789107112131415

1
4
1
16
1
17
1
118
1
1
21
20
1
21
1
22
[
23242526
U7
1
28
1
29
1
30
13
11
1

i14
i2

1
4
M_
8510
1
456
89
1
10
1
111
1
1
21
1
~
111
1
1415161
119202122

BU82-04A

2

ABS
control
module
and
hydraulic
control
module

WIRING
DIAGRAM
[osoa1
6-3
6
.
Wiring
Diagram

F2
100

Twisted
wire
LL

7
-
---
-
---------
-

FtP1

Transmission
control
module

Check
Data
link
connectorconnector

879
EEE
878
a
B56
:c

Ref
.
to
Engine
electrical
system
.

881

Diagnosis
PEterminal

B82

Q1
-
Diagnosis
connector

Front
~--~~
ABS
sensorLH
II
---------------

------_-----_--_----_J

Twisted
wire

ABS
G
sensor

86
B15
P8

(Outback
model
:
Brown)
O
(Other
models
:
Gray)
(Other
models)
(Outback
model)
(Gray)

86
Front

m--F-I
ABS
sensor
RH

n
(Outback
(Other
(Outback
(Other
model)
models)
model)
models)

RearABS
Rear
ABS
sensor
RH
sensor
LH

------------------

P11

1
01
P-am

B78
(Yellow)
879
(Gray)
F1
856
(Black)

1
4
1
4
56
10131
1
1
12131
45
6
8
10
56
88
99
10
111
1314
45678
1
11
1
12
1
13
1
14
1
15
1
16
11
/1
16
1
19
12U]

B82
(Black)

1
456

8100
(Blue)

4
6
171619
111
1
1415161

18192010BU82-04B

3

1
.
Important
Safety
Notice

9
Providing
appropriate
service
and
repair
is
a
matter
of
great
importance
in
the
serviceman's

safety
maintenance
and
safe
operation,
function
and
performance
which
the
SUBARU
vehicle

possesses
.

*
In
case
the
replacement
of
parts
or
replenishment
of
consumables
is
required,
genuine

SUBARU
parts
whose
parts
numbers
are
designated
or
their
equivalents
must
be
utilized
.

*
It
must
be
made
well
known
that
the
safety
of
the
serviceman
and
the
safe
operation
of
the

vehicle
would
be
jeopardized
if
he
used
any
service
parts,
consumables,
special
tools
and
work

procedure
manuals
which
arenot
approved
or
designated
by
SUBARU
.

All
right
reserved
.
This
book
may
not
be
reproduced

or
copied,
in
whole
or
in
part,
withoutthe
written

permission
of
FUJI
HEAVY
INDUSTRIES
LTD
.,

TOKYO
JAPAN
.

SUBARU,
~
and
O
are
trademarks
of

FUJI
HEAVY
INDUSTRIES
LTD
.

Uc
Copyright
1996FUJI
HEAVY
INDUSTRIES
LTD
.

2

6-3
toso2a1
WIRING
DIAGRAM
6
.
Wiring
Diagram

6
.
Wiring
Diagram

24
.
REAR
WINDOW
DEFOGGER
SYSTEM

Reardefogger
switch

Rear
defogger
R25
condenser
0

L
L
F

B97

R1

(Sedan)
R17

Rear
defogger
(Sedan)

R31
D33D40
(Wagon)
RL
R
RL

E
D48

=
B
D33
R25
(Black)
i18
i30

1414
1
4

i4
(Blue)

1
M10

BU52-02

2

GD
Rear

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

i1
22
Black
C-4
B36

i2
22
G4
B37

i3
22
Brown
C-4
B38
Bulkhead
wiring
harness

i4
20
Blue
C-4
B39

i5
15
Gray
C-4F!B

i6
10
C-4
Remote
control
rearview
mirror
switch

i10
16
Light
gray
B-3

i11
5
Light
blueB-3
Combination
meter

i12
16
Light
gray
B-3
Combination
meter

04
13
B-3
Combination
meter

05
6B-2
Fan
switch

07
16
Black
B-2
Mode
control
panel

08
6B-3
Rear
defogger
switch

09
6
Brown
B-3Cruise
control
main
switch

i20
4
Blue
B-2
B80
Bulkhead
wiring
harness

i22
10
B-2
Hazard
switch

i23
2
Brown
B-2
Glove
box
illumination
light

i24
1
G2

i25
3C-2Front
accessory
power
supply

i26
14
B-2
Radio

i27
2B-2
CD
player
illumination
light

i28
1
Black
C-2
Ground

i29
1
Black
C-2
Ground
(Radio)

i30
4B-2
Rear
window
defogger
timer

'
:
Non-colored

5
.
INSTRUMENT
PANEL
WIRING
HARNESS
AND
GROUND
POINT

9
RHD
model

1
23

AI

B

C

DI

1
2
3
5