1997 SUBARU LEGACY battery

BRAKES
[ABS
5
.3i
TYPE]
[T10AA3]
4-4d

10
.
Diagnostics
Chart
with
Select
Monitor

F49

1
1
2
1
3
1415
1
6
1
7
1
8
9
01112131415
~I61718192
21
23
4
1
2526
1281261301311

LeRVI
B4M1254A

a

112131415161718
9l101111121131141151
11611711811912
1_~23
1
242526
728293031

D
n

SL
f
B4M1243A

1
10AA1
I
CHECK
INPUT
VOLTAGE
OF
ABSCM&H/U
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
ABSCM&H/U
.

3)
Run
the
engine
atidle
.

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

chassis
ground
.

Connector
&
terminal

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

(F49)
No
.
24
(+)
-
Chassis
ground
(-)
:

CHECK
:
Is
thevoltage
between
10
V
and
15
V?

,rES
:
GO
t0
step
10AA2
.

No
:
Repair
harness
connector
between
battery
and

ABSCM&H/U
.
I
10AA2
I
CHECK
GROUND
CIRCUIT
OF
ABSCM&HIU
.

1)
Turn
ignition
switchto
OFF
.

2)
Measure
resistance
between
ABSCM&H/U
connector

and
chassis
ground
.

Connector
&
terminal

(F49)
No
.
23
-
Chassis
ground
:

CHECK
:
Is
the
resistance
less
than
0
.5
SZ?

0
:
Go
to
step
10AA3
.

No
:
Repair
ABSCM&H/U
ground
harness
.
I
10AA3
I
CHECKPOOR
CONTACT
IN
CONNECTORS
.
I

CHECK
:
Is
there
poor
contact
in
connectors
between

generator,
battery
and
ABSCM&HlU?
<
Ref
.

to
FOREWORD
[T3C1]
.*10>

vES
:
Repair
connector
.

No
:
Go
tostep
10AA4
.

167

BRAKES
[ABS
5
.31
TYPE]
[T10AB4]
4-4d

10
.
Diagnostics
Chart
withSelect
Monitor

00000
E9
c]['~oo
0000000
000000
1313109
130
e

`"/
II
I
F
I
`'B4M1272A

10AB1
CHECK
VALVERELAY
IN
ABSCM&H/U
.

Measure
resistance
between
ABSCM&H/U
terminals
.

Terminals

No
.
23
(+)
-
No
.
24
(
)
:

CHECK
:
Is
theresistance
more
than
1
MS2?

vES
:
Go
to
step
10AB2
.

No
:
Replace
ABSCM&H/U
.
1
10AB2
I
CHECK
POOR
CONTACT
IN
CONNECTORS
.

Is
there
poor
contact
in
connectors
between

generator,battery
and
ABSCM&HIU?
<
Ref
.

to
FOREWORD
[T3C1]
.*10>

vES
:
Repair
connector
.

No
:
Go
to
step
10AB3
.

10AB3
CHECK
ABSCM&H/U
.

1)
Connect
all
connectors
.

2)
Erase
the
memory
.

3)
Perform
inspection
mode
.

4)
Read
out
the
trouble
code
.

CHECK
:
Is
the
same
trouble
code
as
in
thecurrent

diagnosis
still
being
output?

0
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
10AB4
.

CODES
I10AB4
CHECK
ANY

IAPPEARANCE
.

O
THER
TROUBLE
CODES

CHECK
;
Are
other
trouble
codes
being
output?

Proceed
withthe
diagnosis
corresponding
to
the
trouble
code
.

No
:
A
temporary
poor
contact
.

171

BRAKES
[ABS
5,3i
TYPE]
[T10AC3]
4-4d

10
.
DiagnosticsChart
with
Select
Monitor

(~4~)

11
21
3141516171819
110111112113114115
1110171101912012112-
128129301311
23
1
24
1
25
1
26

v
BW
1256A

F49

1
234
5
6
7
8
9
101112131415
61
1819
2
21
26
7
8293
31
23
2425
1

D
n

]L

B4M1257A

10AC1
CHECK
INPUT
VOLTAGEOF
ABSCM&H/U
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
ABSCM&H/U
.

3)
Turn
ignition
switch
to
ON
.

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

chassis
ground
.

Connector
&
terminal

(F49)
No
.
25
(+)
-
Chassis
ground
(
)
:

CHECK
;
Is
the
voltage
between
10
V
and
13
V?

Go
to
step
10AC2
.

No
:
Repair
harness/connector
between
battery
and

ABSCM&H/U
and
check
fuse
SBF6
.
1
10AC2
I
CHECK
GROUND
CIRCUIT
OF
MOTOR
.
I

1)
Turn
ignition
switch
to
OFF
.

2)
Measure
resistance
between
ABSCM&H/U
connector

and
chassis
ground
.

Connector
&
terminal

(F49)
No
.
26
-
Chassis
ground
:

CHECK
:
Is
theresistance
less
than0
.5
S2?

,rES
:
Go
to
step
10AC3
.

No
:
Repair
ABSCM&H/U
ground
harness
.

1
10AC3
I
CHECK
MOTOR
OPERATION
.I

Operate
tine
check
sequence
.
<
Ref
.
to
4-4
[W25D1
].
>

NOTE
:

Use
the
diagnosis
connector
to
operate
the
sequence

control
.

Can
motor
revolution
noise
(buzz)
be
heard

when
carrying
out
the
check
sequence?

Go
to
step
10AC4
.

No
:
Replace
ABSCM&H1U
.

173

BRAKES
[ABS
5
.3i
TYPE]
(T10AE2]
4-4d

10
.
Diagnostics
Chart
with
Select
Monitor

(~4~)

11
21
3141516171819
1101111121131141151
11161171181191202112
12812913W11
23
1
24
1
26

v
B4MI256A

r-A
1121314151617181911011111211311
51
1617
8192
21
23
2425
26
728293031

D
n

5C

B4M
1257A

10AE1
CHECK
INPUT
VOLTAGEOF
ABSCM&H/U
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
ABSCM&H/U
.

3)
Turn
ignition
switch
to
ON
.

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

chassis
ground
.

Connector
&
terminal

(F49)
No
.
25
(+)
-
Chassis
ground
(
)
:

CHECK
:
Is
thevoltage
between
10
V
and
13
V?

,rES
:
Go
to
step
10AE2
.

No
:
Repair
harness/connector
between
battery
and

ABSCM&H/U
and
check
fuse
SBF6
.

10AE2
I
CHECK
GROUND
CIRCUIT
OF
MOTOR
.

1)
Turn
ignition
switch
to
OFF
.

2)
Measure
resistance
between
ABSCM&H/U
connector

and
chassis
ground
.

Connector
&
terminal

(F49)
No
.
26
-
Chassis
ground
:

CHECK
:
Is
the
resistance
less
than0
.5
SZ?

,rES
:
Go
to
step
10AE3
.

No
:
Repair
ABSCM&H/U
ground
harness
.

179

4-4d
[TyoAE3l
BRAKES
[ABS
5
.31
TYPE]

10
.
Diagnostics
Chart
withSelect
Monitor
F49

D

P)
V
44-
84M1234A
I

F49

1
1
2
3
1
4
1
5
1
6
1
7
1
89
101112131415
1
16
1
17
1
18
1
19
1
2
01
21
12-
L-12
7
12
8
1
2
00
31
1
2324
2526

1L
B4M
1243A

I10AE3]CHECK
INPUT
VOLTAGE
OF
ABSCM&HIU
.

1)
Run
the
engine
at
idle
.

2)
Measure
voltage
between
ABSCM&H/U
connector
and

chassis
ground
.

Connector
&
terminal

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

CHECK
:
Is
thevoltage
between
10
V
and
15
V?

YES
:
Go
to
step
10AE4
.

No
:
Repair
harness
connector
between
battery,igni-
tion
switch
and
ABSCM&H/U
.
1
10AE4
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
the
resistance
less
than
0
.5
fl?

Go
to
step
10AE5
.

No
:
Repair
ABSCM&H/U
ground
harness
.

10AE5
CHECK
MOTOR
OPERATION
.

Operate
the
sequence
control
.
<
Ref
.
to
4-4
[W25D1
]
.
>

NOTE
:

Use
the
diagnosis
connector
to
operate
the
sequence

control
.

CHECK
:
Can
motor
revolution
noise
(buzz)
be
heard

when
carrying
outthe
sequence
control?

,rES
:
Go
to
step
10AE6
.

No
:
Replace
hydraulic
unit
.

180

BRAKES
[ABS
5
.31
TYPE]
[T10AE8]
4-4d

10
.
DiagnosticsChart
with
Select
Monitor

1
10AE6
I
CHECK
POOR
CONTACT
IN
CONNECTORS
.

Turn
ignition
switch
to
OFF
.

CHECK
:
Is
there
poor
contact
in
connector
between

generator,
battery
and
ABSCM&HIU?
<
Ref
.

to
FOREWORD
[T3C1]
.*10
>

0
:
Repair
connector
.

No
:
Go
to
step
10AE7
.
1
10AE7
J
CHECK
ABSCM&HlU
.

1)
Connect
all
connectors
.

2)
Erase
the
memory
.

3)
Perform
inspection
mode
.

4)
Read
out
the
trouble
code
.

K
:
Is
the
same
trouble
code
as
in
thecurrent

diagnosis
still
being
output?

,rES
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
10AE8
.

10AE8
CHECK
ANY
OTHER
TROUBLE
CODES

APPEARANCE
.

CHECK
:
Are
other
trouble
codes
being
output?

Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

No
:
A
temporary
poor
contact
.

181

4-4d
[T10AH0]
BRAKES
[ABS
5
.31
TYPE]

10
.
Diagnostics
Chart
withSelect
Monitor

D
"
NEW
56
(FBI)

G
SENSOR
+B

B4M0982

AH
:
TROUBLE
CODE
56
GSENSOR+
B

-
BATTERY
SHORT
OF
G
SENSOR
-

DIAGNOSIS
:

*
Faulty
G
sensor
output
voltage

TROUBLE
SYMPTOM
:

9
ABS
does
not
operate
.

WIRING
DIAGRAM
:

F49

ABS
control
module
and
hydraulic
contro
I
unit

Ft
P11

12
3
45678

P1
Pt1

-~
~
ABS
G
sensor

F,
TM

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
1314
15
1
16111819
0
212223
24252627
1
28
1
29
1
30
1
31
1

B4M7260

194

BRAKES
[ABS
5
.31
TYPE]
(T10AH3]
4-4d

10
.
Diagnostics
Chart
withSelect
Monitor

G-SENS
(F
10)

2
.30
V

sannos271

F49

1
23
4
5
6
.1
7
1
8
1
9
01112131415
16171
192C
12
2324
2526
728293031
11

D

_
V
B4M1263A

I10AH1
CHECK
OUTPUT

(SELECT
MONITORF

G
SENSOR
USING

1)
Press
[F],
[1]
and
[0]
on
the
select
monitor
.

2)
Read
the
select
monitor
display
.

CHECK
;
Is
theindicated
reading
between
2
.1
and
2
.5

V
when
the
G
sensor
is
in
horizontal
posi-

tion?

Replace
ABSCM&H/U
.

No
:
Go
tostep
10AH2
.

1
10AH2
I
CHECK
BATTERY
SHORT
OF
HARNESS
.

1)
Turn
ignition
switch
to
OFF
.

2)
Remove
console
box
.

3)
Disconnect
connector
from
G
sensor
.

4)
Disconnect
connector
from
ABSCM&H/U
.

5)
Measure
voltage
between
ABSCM&H/U
connector
and

chassis
ground
.

Connector
&
terminal

(F49)
No
.
6
(+)
-
Chassis
ground
(
)
:

CHECK
;
Is
thevoltage
less
than1
V?

Go
tostep
10AH3
.

No
:
Repair
harness
between
G
sensor
and

ABSCM&H/U
.
1
10AH3
I
CHECK
BATTERY
SHORT
OFHARNESS
.

1)
Turn
ignition
switch
to
ON
.

2)
Measure
voltage
between
ABSCM&H/U
connector
and

chassis
ground
.

Connector
&
terminal
(F49)
No
.
6
(+)
-
Chassis
ground
(
)
:

CHECK
;
Is
the
voltage
less
than
1
V?
vES
:
Go
tostep
10AH4
.

No
:
Repair
harness
between
G
sensor
and

ABSCM&H/U
.

195