1997 SUBARU LEGACY ignition

4-4d[T8Y4]
BRAKES
[ABS
5
.31
TYPE]

8
.
Diagnostics
Chart
with
Trouble
Codeby
ABS
Warning
Light

1

1
2
34
5
67
819
h
011
111
211311411
l1
gi
18191201211221
23
1
24
1
25
1
26
1
7Ed2
30131

LS
B4M1261A

F49
F49

8Y4
CHECKOPEN
IN
G
SENSOR
-

PUT
HARNESS
A
DuGROUND
HA
NESS
.T

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
the
resistance
between
4
.3
and
4
.9
kS2?

,rEg
:
Go
to
step
8Y5
.

No
:
Repair
harness/connector
between
G
sensor
and

ABSCM&H/U
.

8Y5
CHECK
GROUND

OUTPUT
HARN

SSHORT
IN
G
SENSOR

1)
Disconnect
connector
from
G
sensor
.

2)
Measure
resistance
between
ABSCM&H/U

and
chassis
ground
.

Connector
&
terminal

(F49)
No
.
6
-
Chassis
ground
:

CHECK
;
Is
the
resistance
more
than
1
M52?

S
:
Go
to
step
8Y6
.

connector

No
:
Repair
harness
between
G
sensor

ABSCM&H/U
.

and
8Y6
CHECK
BATTERY
SHORT
OF
HARNESS
.

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?

,rES
:
Go
to
step
8Y7
.

No
:
Repair
harness
between
G
sensor
and

ABSCM&H/U
.

86

-
84M1262A
I

B4M1263A
I

BRAKES
[ABS
5
.31
TYPE]
IT8Y$I4-4d

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

$Y7
CHECK
BATTERY
SHORT
OF
HARNESS
.

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?

Go
to
step
8Y8
.

No
:
Repair
harness
between
G
sensor
and

ABSCM&H/U
.

8Y8
I
CHECK
GROUND
SHORT
OF
HARNESS
.

Measure
resistance
between
ABSCM&H/U
connector
and

chassis
ground
.

Connector
&
terminal

(F49)
No
.
28
-
Chassis
ground
:

CHECK
;
Is
theresistance
more
than
1
MS2?

Go
to
step
8Y9
.

No
:
Repair
harness
between
G
sensor
and

ABSCM&H/U
.

Replace
ABSCM&H/U
.

87

4-4d
[rsYS1
BRAKES
[ABS
5
.3i
TYPE]

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

B4M0915I

Front

t

1

0

B4M0917A

0

Front

i
a

--

B4M0918A

1
8Y9
I
CHECK
G
SENSOR
.
I

1)
Turn
ignition
switch
to
OFF
.

2)
Remove
G
sensor
from
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
.4
V
when
G

sensor
is
horizontal?

0
:
Go
tostep
8Y10
.

No
:
Replace
G
sensor
.

8Y10
CHECK
G
SENSOR
.

Measure
voltage
between
G
sensor
connector
terminals
.

Connector
&
terminal

(P11)
No
.
2
(+)
-
No
.
1(
)
:

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

sensor
is
inclined
forwards
to
90°?

Go
tostep
8Y11
.

No
:
Replace
G
sensor
.

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°?

Go
tostep
8Y12
.

No
:
Replace
G
sensor
.

8Y12
CHECK
POOR
CONTACT
IN
CONNECTORS
.

CHECK
:
Is
there
poor
contact
in
connector
between

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

WORD
[T3C1]
.*10
>

0
:
Repair
connector
.

No
:
Go
to
step
8212
.

88

4-4d[T9B0]
BRAKES
[ABS
5
.31
TYPE]

9
.
Select
Monitor
Function
Mode

1997
(F00)

AB
S
4WD
"
AT

H4M1117

B
:
MODE
F00

-
ROM
ID
NUMBER
(ROM)
-

CONDITION
:

Ignition
switch
ON

SPECIFIED
DATA
:

Presentation
display

911311
CHECK
MESSAGE
OF
DISPLAY
.

CHECK
;
Does
display
indicate
message
"Error
I"?

Repair
loose
or
disconnect
connector,
or
discon-

tinued
circuit
in
data
linkcircuit
.

No
:
Go
to
step
982
.

FR
(F05)

30
km/h

B4M0922

191132
I
CHECK
MESSAGE
OF
DISPLAY
.

CHECK
:
Does
display
indicate
message
"Error
2"?

YES
:
Repair
poor
contact
of
select
monitor
cartridge,

or
installation
of
different
type
select
monitor
car-

tridge
.

No
:
Data
link
system
is
normal
.

C
:
MODE
F01
AND
F05

-
FRONT
RIGHT
WHEEL
SPEED
SIGNAL

(FR)
-

Compare
speedometer
with
monitor
indications
.

"
F01
:
FR
wheelspeed
is
indicated
in
mile
per
hour
(mile/

h)
.

*
F05
:
FR
wheel
speed
is
indicated
in
kilometerper
hour

(km/h)
.

NOTE
:

The
monitoras
shown,
indicates
that
FR
wheel
speed
is

30
km/h
.

94

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

9
.
Select
Monitor
Function
Mode

MEMORY
C
LR
?

0
:
YES
1
:N0

B4M0930

OF
OC~O
ENT

84M0931
I

MEMORY
C
LR
?

0
:
YES
1
:
NO

B4M0930

MEMORY
C
LR
?

*O
:YES
1
:N0

84M0933

PLEASE

KEY
OFF

84M0934

J
:
MODE
FCO

-
HISTORY
OF
TROUBLE
CODES
IS
ERASED

(D
"
CLR)
-

e
Deletes
therecorded
trouble
codes
in
ABS
control
mod-

ule
.

1)
Pressthe
function
key
[F]
[C]
[O]
[ENT]
in
that
order
.

2)
System
indicates
as
shown
.

3)
Press
thefunction
key
[0],
to
clear
memories
.
The
indi-

cation
of
*
is
added
to
screen
.

4)
Press
thefunction
key[ENT]
.
System
indicates
as

shown
.

5)
Turn
ignition
switchto
OFF
.

98

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