1997 SUBARU LEGACY ESP

4-4d
[rsRaj
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

1
8R4
I
CHECK
ABSCM&H/U
.

1)
Connect
all
connectors
.

2)
Erase
the
memory
.

3)
Perform
inspection
mode
.

4}
Read
outthe
trouble
code
.

Is
the
same
trouble
code
as
in
thecurrent

diagnosis
still
being
output?

,rES
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
81145
.

8R5
CHECK
ANY
OTHER
TROUBLE
CODES

APPEARANCE
.

Are
other
trouble
codes
being
output?

Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

A
temporary
poor
contact
.

60

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

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

8S6
CHECK
ANY

I
APPEARANCE

.THER
TROUBLE
CODES

CHECK
:
Are
other
trouble
codes
being
output?

,rES
:
Proceed
with
thediagnosis
corresponding
to
the

trouble
code
.

No
:
A
temporary
poor
contact
.

64

4-4d
[T8T4l
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

(~~O

a

1
23
4
567
819110111112113114115
16171819
2
1
23
2425
26
7
1281
2
91

]C
-_
84M1243A

$T4
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
0?

vES
:
Go
to
step
8T5
.

No
:
Repair
ABSCM&H/U
ground
harness
.

CHECKPOOR
CONTACT
IN
CONNECTORS
.I

Is
there
poor
contact
in
connectors
between

generator,
battery
and
ABSCM&HIU?
<
Ref
.

to
FOREWORD
[T3C1]
.*10
>

Repair
connector
.

No
:
Go
to
step
8T6
.

18T6
i
CHECK
ABSCM&HIU
.

1)
Connect
ail
connectors
.

2)
Erase
the
memory
.

3)
Perform
inspection
mode
.

4)
Read
outthe
trouble
code
.

diagnosis
still
being
output?

,mss
:
Replace
ABSCM&H/U
.

No
:
Go
tostep
8T7
.

CHECK
;
Is
the
same
trouble
code
as
in
thecurrent

CHECK
ANY
OTHER
TROUBLE
CODES

APPEARANCE
.

CHECK
:
Are
other
trouble
codes
being
output?

Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

No
:
A
temporarypoor
contact
.

68

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

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

CHECK
OPEN
CIRCUIT
OF
HARNESS
.

Measure
voltage
between
ABSCM&H/U
connector
and

chassis
ground
.

Connector
&
terminal

(F49)
No
.
3
(+)
-
Chassis
ground
(
)
:

(F49)
No
.
31
(+)
-
Chassis
ground
(
)
:

CHECK
;
Is
thevoltage
between
10
V
and
15
V?

,rES
:
Go
to
step
81
.18
.

No
:
Repair
harness/connector
between
TCM
and

ABSCM&H/U
.

181
.18
1
CHECK
POOR
CONTACT
IN
CONNECTORS
.I

CHECK
:
Is
there
poor
contact
in
connectors
between

TCM
and
ABSCM&H/U?
<
Ref,
to
FORE-

WORD
[T3C1]
.*10
>

YES
:
Repair
connector
.

No
:
Go
to
step
8U9
.

I
8U9CHECK
ABSCM&H/U
.

1)
Turn
ignition
switchto
OFF
.

2)
Connect
all
connectors
.

3)
Erase
the
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?

0
:
Replace
ABSCM&H/U
.

no
:
Go
to
step
81
.110
.

O
CHECK
ANY

I
APPEARANCE
.

O
THER
TROUBLE
CODES

Are
othertrouble
codes
being
output?

Proceed
with
the
diagnosiscorresponding
to
the

trouble
code
.

No
:
A
temporary
poor
contact
.

~3

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

I
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

1
8V4
I
CHECKPOOR
CONTACT
IN
CONNECTORS
.

Is
there
poor
contact
in
connectors
between

generator,
battery
and
ABSCM&HIU?
<
Ref
.

to
FOREWORD
[T3C1]
.*10
>

Repair
connector
.

No
:
Go
to
step
8V5
.

8V5
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
thecurrent

diagnosis
still
being
output?

,rES
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
8V6
.

8116
CHECK
ANY
OTHER
TROUBLE
CODES

APPEARANCE
.

CHECK
:
Are
other
trouble
codes
being
output?

Proceed
withthe
diagnosis
corresponding
tothe
trouble
code
.

No
:
A
temporary
poor
contact
.

76

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

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

CHECKPOOR
CONTACT
IN
CONNECTORS
.

Turn
ignition
switch
to
OFF
.

CHECK
:
Is
there
poor
contact
in
connector
between

generator,
battery
and
ABSCM&HI
U?
<
Ref
.

to
FOREWORD
[T3C1]
.*10>

vES
:
Repair
connector
.

No
:
Go
to
step
8W7
.

8W7
I
CHECK
ABSCM&H/U
.

1)
Connect
all
connectors
.

2)
Erase
the
memory
.

3)
Perform
inspection
mode
.

4)
Read
outthe
trouble
code
.

CHECK
:
Is
the
same
trouble
code
as
in
thecurrent

diagnosis
still
being
output?

,rES
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
8W8
.

8W8
CHECK
ANY

IAPPE
RANCE
.
O
THER
TROUBLE
CODES

CHECK
:
Are
other
trouble
codes
being
output?

vES
:
Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

No
:
A
temporarypoor
contact
.

81

BRAKES
[ABS
5
.31
TYPE]
[T8X5]
4-4d

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

8X1
I
CHECK
STOP
LIGHTS
COME
ON
.

Depress
the
brake
pedal
.

CHECK
:
Do
stop
lights
come
on?

,rES
:
Go
to
step
8X2
.

No
:
Repair
stop
lights
circuit
.
I
$X2
I
CHECK
OPEN
CIRCUIT
IN
HARNESS
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
ABSCM&H/U
.

3)
Depress
brake
pedal

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

chassis
ground
.

Connector
&
terminal

(F49)
No
.
2
(+)
-
Chassis
ground
(-)
;

CHECK
:
Is
thevoltage
between
10
V
and
15
V?

YES
:
Go
to
step
8X3
.

No
:
Repair
harness
between
stop
light
switch
and

ABSCM&H/U
.

8X3
I
CHECK
POOR
CONTACT
IN
CONNECTORS
.

CHECK
:
Is
there
poor
contact
in
connector
between

stop
light
switch
and
ABSCM&HlU?
<
Ref
.
to

FOREWORD
[T3C1]
.*70
>

,rES
:
Repair
connector
.

No
:
Go
to
step
8X4
.

18X4
I
CHECK
ABSCM&H/U
.

1)
Connect
all
connectors
.

2)
Erase
the
memory
.

3)
Perform
inspection
mode
.

4)
Read
outthe
trouble
code
.

CHECK
:
Is
the
same
trouble
code
as
in
thecurrent

diagnosis
still
being
output?

,rES
:
Replace
ABSCM&H/U
.

No
:
Go
to
step
8X5
.

8X5
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
.

83

BRAKES
[ABS
5
.31
TYPE]
[T8Y14I4-4d

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

8Y13
CHECK
ABSCM&HIU
.

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?

Replace
ABSCM&H/U
.

No
:
Go
tostep
8Y14
.

8Yt4
CHECK
ANY

`APPEARANCE
.

THER
TROUBLE
CODES

K
:
Are
other
trouble
codes
being
output?

0
:
Proceed
with
the
diagnosis
corresponding
to
the

trouble
code
.

A
temporarypoor
contact
.

89