SUBARU LEGACY 1997 Service Repair Manual

BRAKES
[ABS
5
.31
TYPE]
[T10B0]
4-4d

10
.
Diagnostics
Chart
with
Select
Monitor

B
:
LIST
OF
TROUBLE
CODE

Code
Display
screen
(FBi)
Contents
of
diagnosis
Ref
.
to

-
ERROR
3
(1)
Select
monitor
communication
failure
[T10COJ*10

11
NO
TROUBLE
Although
no
trouble
appears
on
the
select
monitor
display,
the
ABS
warning
light
remains
on
.
[T10D0]*10

21
FR
.
SS
HARD
Open
circuit
orinput
voltage
too
high
of
FR
sensor
[T10E0]*10

22
FR
.
SS
SOFT
Abnormal
ABS
sensor
signal
of
FRsensor
[T1010J*10

23FL
.
SS
HARD
Open
circuit
orinput
voltage
too
high
of
FLsensor
[T10F0]*10

24FL
.
SS
SOFT
Abnormal
ABS
sensor
signal
of
FL
sensor
[T10J0]*10

25
RR
.
SS
HARD
Open
circuit
orinput
voltage
too
high
of
RR
sensor[T10G0]*10
26
RR
.
SS
SOFT
Abnormal
ABS
sensor
signal
of
RR
sensor[T10K0]*10
27
RL
.
SS
HARD
Open
circuit
orinput
voltage
too
high
of
RL
sensor
[T10H0]tr10

28
RL
.
SS
SOFT
Abnormal
ABS
sensor
signal
of
RL
sensor
[T10L0]*10

29
EITHER
.
SS
SOFT
Abnormal
ABS
sensor
signal
(any
one
of
four)
JT10M0]{r10

31
FR
.
EV
VALVE
Abnormal
FR
inlet
valve
[T10N0]*10

32
FR
.
AV
VALVE
Abnormal
FR
outlet
valve
[T10R0]*10

33
FL
.
EV
VALVE
Abnormal
FL
inlet
valve
[T1000]*10

34
FL
.
AV
VALVE
Abnormal
FL
outlet
valve
[T10S0]xr10

35
RR
.
EV
VALVE
Abnormal
RR
inlet
valve
[T10P0]*10

36
RR
.
AV
VALVE
Abnormal
RR
outlet
valve
[T10T0]*10

37
RL
.
EV
VALVE
Abnormal
RL
inlet
valve
[T10QO]*10

38
RL
.
AV
VALVE
Abnormal
RL
outlet
valve[T10U0]tr10

41
ECU
Abnormal
ABSCM&H/U
[T10V0)*10

42
LOW
VOLTAGE
Source
voltage
is
low
.
[T10W0]tr10

HIGH
VOLTAGE
Source
voltage
is
high
.
[T10X0]*10

44
CCM
LINE
A
combination
of
AT
control
abnormals
(ABS
not
in
control)
[T10Y0]*10

CCM
OPEN
A
combination
of
AT
control
abnormals
(ABS
in
control)
[T10Z0]*10

V
.
RELAY
Abnormal
valve
relay
[T10AA0]*10
51
V
.
RELAY
ON
Valve
relay
ON
failure
[T10AB0]*10

M
.
RELAY
OPEN
Open
circuit
of
motor
relay
[T10AC0]*10

52
M
.
RELAY
ON
Motor
relay
ON
failure
[T10AD0]tr10

MOTOR
Abnormal
motor
[T10AE0]*10

54
BLS
Abnormal
stop
light
switch
[T10AF0]*10

G
SENSOR
LINE
Open
or
short
circuit
of
G
sensor
[T10AG0]*10

G
SENSOR
+B
Battery
short
of
G
sensor
[T10AH0]*10
56
G
SENSOR
H
~x
Abnormal
G
sensor
high
V
output
[T10A10]*10

G
SENSOR
STICK
I
G
sensor
output
is
stuck
.
[T10AJ0]*10

NOTE
:

High
~t
means
high
friction
coefficient
against
road

surface
.

103

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

10
.
Diagnostics
Chart
with
Select
Monitor

*~k*~k~~*~k***~k~k~k

ERROR
3

84M0943

C
:
ERROR
3
(1)

-
SELECT
MONITOR
COMMUNICATION

FAILURE
-

DIAGNOSIS
:

Faulty
harness
connector

TROUBLE
SYMPTOM
:

"
ABS
warning
light
remains
on
.

"
ERROR
3
or
1
appears
on
the
select
monitor
display
.

WIRING
DIAGRAM
:

F49

ABS
control
module
and
hydrauliccontrol
unit

S8F-4

818

Data
link
connector

FL1.258

8100
878
F49

1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
1
10
1
11
1
12
1
13
1415
1116
1
17
1
18
1
19
1
20
12
1
2
23
425
96
49
~0L_LLl~J
1116
1
17
1
18
1
19
1
20
12
1
2
23
45
26
1
1
1
1
41
11
9
0
128
293031

84M1266

f2
8100
Fuse
IGNsw

No
.18o-

104

Generator

BRAKES
[ABS
5
.3i
TYPE]
[T1
0C4]
4-4d

10
.
Diagnostics
Chart
with
Select
Monitor

1~
\

v
ILIA

m(l
(l
n
!~
5r
J
%

B4M0430

1
10C1
I
CHECKGENERATOR
.I

1)
Start
the
engine
.

2)
Idle
the
engine
.

3)
Measure
voltage
between
generator
and
chassis

ground
.

Terminal

Generator
B
terminal
(+)
-
Chassis
ground
(
)
:

CHECK
;
Is
the
voltage
between
10
and
15
V?

Go
tostep
10C2
.

No
:
Repair
generator
.

10C2
CHECK
BATTERY
TERMINAL
.

Turn
ignition
switch
to
OFF
.

CHECK
:
Is
there
poor
contact
at
battery
terminal?

,rES
:
Repair
battery
terminal
.

No
:
Go
to
step
10C3
.

10C3
CHECK
I
MONITOR
.

MMUNICATION
OF
SELECT

Using
the
select
monitor,
check
whether
communication

to
other
system(suchas
engine,
AT,
etc
.)
can
be
executed

normally
.

CHECK
:
Are
the
name
and
year
ofthe
system
dis-

played
on
theselect
monitor?

Go
to
step
10C4
.

No
:
Repair
select
monitor
communication
cable
and

connector
.

10C4
CHECK
I
CONNECTOR
.

INSTALLATION
OF
ABSCM&H/U

Turn
ignition
switch
to
OFF
.

CHECK
:
Is
ABSCM&HIU
connector
inserted
into

ABSCM&HlU
until
the
clamp
locks
onto
it?

Go
to
step
10C5
.

n~o
:
Insert
ABSCM&H/U
connector
into
ABSCM&H/U

until
the
clamp
locks
onto
it
.

105

4-4d
[T1ocs1
BRAKES
[ABS
5
.3i
TYPE]

10
.
DiagnosticsChart
with
Select
Monitor

F49

1
2
3L415161718
9
1
10
1
11
1
12
1
13
1
14
1
15
6171819
221
232425
26
I
U
71
28121301311

D
~

SC
B4M
1243A

I
10C5
I
CHECK
POWER
SUPPLY
OF
ABSCM&H/U
.

1)
Disconnect
connectorfrom
ABSCM&H/U
.

2)
Start
engine
.

3)
Idle
the
engine
.

4)
Measure
voltage
between
ABSCM&H/U
connector
and

chassis
ground
.

Connector
&
terminal

(F49)
No
.
1
(+)
-
Chassis
ground
(
)
:

CHECK
;
Is
thevoltage
between
10
and
15
V?

,rES
:
Go
to
step
10C6
.

No
:
Repair
ABSCM&H/U
power
supply
circuit
.
I
10C6
I
CHECK
GROUND
CIRCUIT
OF
ABSCM&H/U
.

1)
Turn
ignition
switch
to
OFF
.

2)
Measure
resistance
between
ABSCM&H/U
connector

and
chassis
ground
.

Connector
&
terminal

(F49)
No
.
23
-
Chassis
ground
:

CHECK
;
Is
theresistance
less
than0
.5
0?

Repair
harness/connector
between
ABSCM&H/U

and
select
monitor
.

No
:
Go
to
step
10C7
.

106

BRAKES
[ABS
5
.31
TYPE]
[710C8]
4-4d

10
.
Diagnostics
Chart
with
Select
Monitor

(~§)
(~~o
1
2
3
4
5
171819
11
011
111
2113114115
1617184
2
212
23
2425
26
1
Q2
Y131
1
2n
171
9
.
1

D

Lt
10
0
.

B4M
1267A

10C7
CHECK
HARNESS/CONNECTOR
BETWEEN

ABSCM&H/U
AND
DATA
LINK
CONNECTOR
.

1)
Turn
ignition
switch
OFF
.

2)
Measure
resistance
between
ABSCM&H/U
connector

and
data
link
connector
.

Connector
&
terminal

(F49)
No
.
20
-
(B78)
No
.
3
:

(F49)
No
.
5
-
(B78)
No
.
2
:

CHECK
:
Is
the
resistance
less
than0
.5
SZ?

,rES
:
Repair
harness
and
connector
between

ABSCM&H/U
and
data
fink
connector
.

No
:
Go
to
step
10C8
.
(
10C8
I
CHECK
POOR
CONTACT
IN
CONNECTORS
.

CHECK
:
Is
there
poor
contact
in
connectors
between

ABSCM&HI
U
and
data
link
connector?
<
Ref
.

to
FOREWORD
[T3C1]
.*10>

,rES
:
Repair
connector
.

No
:
Replace
ABSCM&H/U
.

107

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

10
.
Diagnostics
Chart
withSelect
Monitor

D
&#34;
ALL
11
(FBI)

NO
TROUBLE

B4M0944

D
:
NO
TROUBLE

-
ALTHOUGHNO
TROUBLE
APPEARS
ON

THESELECT
MONITOR
DISPLAY,
THE
ABS

WARNING
LIGHT
REMAINS
ON
-

DIAGNOSIS
:

*
ABS
warning
light
circuit
is
shorted
.

TROUBLE
SYMPTOM
:

&#34;
ABS
warning
light
remains
on
.

&#34;
NO
TROUBLE
displayed
on
the
select
monitor
.

NOTE
:

When
the
ABS
warning
light
is
OFF
and
"NO
TROUBLE"

is
displayed
on
the
select
monitor,
thesystem
is
in
normal

condition
.

WIRING
DIAGRAM
:

F49
F2
8100

ABS
control
module
and
hydraulic
control
unit

Fuse

No
.18

Fuse

C
:0
No
.15

ABS

Combination
meter

oDiagnosis°
E
connector
g

Diagnosis
terminal

IGN
sw
SBF-4
FL1
.25B

r
w
m

Fuse
SBF-3

No
.
19

981
BI00

121314
IC
;
;l
EEL
r-1
M
~1
1
111
2
1
1
31141
1
10
46

i14

1
1
12131
4
1516
111

i2
F19

1234567891111131415
1819
201122
23
4
2526
M78
1
27,9
1
30
13
11

84M1230
I
108

BRAKES
[ABS
5
.31
TYPE]
[T10D5]
4-4d

10
.
Diagnostics
Chart
with
Select
Monitor

00000
~
oooii
00000
n
0000^JO~001
'00

(III
`'B4M1237A

B4M1236A
I

F2

9
1817161
54
3
2
l
9
B
7
6543
211
~

84M
1236A

1ODII
I
CHECK
WIRING
HARNESS
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
(F2)
from
connector
(B100)
.

3)
Turn
ignition
switch
to
ON
.

CHECK
:
Does
the
ABS
warning
light
remain
off?

Go
to
step
10132
.

No
:
Repair
front
wiring
harness
.

10D2
CHECK
PROJECTION
AT
ABSCM&H/U
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
ABSCM&H/U
.

3)
Check
for
broken
projection
at
the
ABSCM&H/U
termi-

nal
.

CHECK
:
Are
the
projection
broken?

Go
to
step
103
.

No
:
Replace
ABSCM&H/U
.
1
10D3
I
CHECKABSCM&H/U
.

Measure
resistance
between
ABSCM&H/U
terminals
.

Terminals

No
.
21
-
No
.
23
:

!s
the
resistance
more
than
1
MS2?

Go
to
step
1101134
.

No
:
Replace
valve
relay
.
1
10134
1
CHECK
WIRING
HARNESS
.
I

Measure
resistance
between
connector
(F2)
and
chassis

ground
.

Connector
&
terminal

(F2)
No
.
9
-
Chassis
ground
:

is
the
resistance
less
than
0
.5
S2?

Go
to
step
10135
.

o
:
Repair
harness
.
1
10D5
I
CHECK
WIRING
HARNESS
.
I

1)
Connect
connector
to
ABSCM&H/U
.

2)
Measure
resistance
between
connector
(F2)
and
chas-

sis
ground
.

Connector
&
terminal

(F2)
No
.
9
-
Chassis
ground
:

Is
the
resistance
more
than
1
mil?

Go
tostep
10D6
.

Repair
harness
.

109

F2
.

4-4d
[T1
011361
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor

1016
CHECK

I

POO

CONNECTOR

R
CONTACT
IN
ABSCM&H/U

CHECK
:
Is
there
poor
contact
in
ABSCM&HlU
connec-

tor?
<
Ref
.
to
FOREWORD
[T3C1]
.*10
>

ves
:
Repair
connector
.

No
:
Replace
ABSCM&H/U
.

110

4-4d
[T10E0]
BRAKES
[ABS
5
.3i
TYPE]

10
.
Diagnostics
Chart
withSelect
Monitor

D
&#34;
NEW
21
(FBI)

F
R
.
SS
HARD

B4M0945

D
&#34;
NEW
23
(FBI)

FL
.
SS
HARD

84M0946

D
&#34;
NEW
25
(FBI)

RR
.
S
S
HARD

B4M0947

D
&#34;
NEW
27
(FBI)

RL
.SS
HARD

84M0948

E
:
TROUBLE
CODE
21
FR
.
SS
HARD

-
ABNORMAL
FRONT
RH
ABS
SENSOR

(OPEN
CIRCUIT
OR
INPUT
VOLTAGE
TOO

HIGH)
-

F
:
TROUBLE
CODE
23
FL
.
SS
HARD

-
ABNORMAL
FRONT
LH
ABS
SENSOR

(OPEN
CIRCUIT
OR
INPUT
VOLTAGE
TOO

HIGH)
-

G
:
TROUBLE
CODE
25
RR
.
SS
HARD

-
ABNORMAL
REAR
RH
ABS
SENSOR
(OPEN

CIRCUIT
OR
INPUT
VOLTAGE
TOO
HIGH)
-

H
:
TROUBLE
CODE
27
RL
.
SS
HARD

-
ABNORMAL
REAR
LH
ABS
SENSOR
(OPEN

CIRCUIT
OR
INPUT
VOLTAGE
TOO
HIGH)
-

112

BRAKES
[ABS
5
.31
TYPE]
[T10H0]
4-4d

10
.
Diagnostics
Chart
with
Select
Monitor

DIAGNOSIS
:

&#34;
Faulty
ABS
sensor(Broken
wire,
input
voltage
too
high)

Faulty
harness
connector

TROUBLE
SYMPTOM
:

9
ABS
does
not
operate
.

WIRING
DIAGRAM
:

F49

ABS
control
module
and
hydraulic
control
unit

OUTBACK
with
step
roof
model
Bt5
O

O
P8
O
P8

[ft
LwI

O
8100

815

Front
ABS
sensorLH

Front
ABS
sensor
RH
Twisted
wire
Ft
Pt
OO

WEB
i
Twisted
wire

W
EB-

(2D

F1
100

F
172
-1
F3
1
F
U=
10
1
4
15161
7
1
8

Rear
ABS
sensor
LH

RearABS
sensor
RH

t
OUTBACK
with
step
roof
model
III

Rear
ABS
sensor
LH

j
~
RearABS
j
7
sensor
RH

I
~
I
L---------------J

F49

12345678910111131415
1
16
1
17
1
18
1
19
111
202122
23
4
252627
1
28
1
29
001
31

B4M1238

113