1997 SUBARU LEGACY warning

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

BRAKES
[ABS
5
.31
TYPE]
[T9A3]
4-4d

9
.
Select
Monitor
Function
Mode

2
.
FA
MODE
(ON/OFF
DATA
ARE
DISPLAYED
.)

Function
code
M
it
i
b
i
C
l
Code
Abbreviation
easur
ng
ems
ontents
to
e
mon
toredScrol
Ref
.
to

131
Stop
light
switch
LED
1
comes
on
withthe
switch
on
(with
the

brake
pedal
down)
.

VR
Valve
relay
signal
LED
2
comes
on
withthevalverelay
off
.

MR
Motor
relay
signal
LED
3
comes
on
with
the
motor
on
.

FAO
ATAT
ABS
signal
LED
4
comesonwhen
ABS
control
is
on
.
Possible
[T910]*10

AW
ABS
warning
light
LED
6
comes
on
when
the
warning
light
is
on
.

VM
Valve
relay
monitor
LED
1
comes
on
with
thevalverelay
off
.

MM
Motor
relay
monitor
LED
8
comes
on
when
the
motor
relay
is
on
.

CM
CCM
signal
LED
9
comes
on
when
ABS
control
is
on
.

3
.
FB
MODE
(TROUBLE
CODES
ARE
DISPLAYED
.)

Function
code
M
i
s
easuring
tem
Contents
to
be
monitored
Scroll
Ref
.
to
Code
Abbreviation

D~ALL
A
maximum
of
3
trouble
codes
are
displayed
in

order
of
occurrence
.

D~NEW
The
most
recent
trouble
code
appears
on
the

select
monitor
display
.

FB1
D~MID
Historyoftrouble
The
second
most
recent
trouble
code
appears
Possible
[T10B0]*10codes
is
displayed
.
on
the
select
monitor
display
.

D~OLDThe
third
most
recent
trouble
code
appears
on

the
select
monitor
display
.

D~REF
A
specified
period
of
time
proceeding
trouble

code
appears
on
the
select
monitor
display
.

Do
*a*
22?(FB1)

FR
.
SS
SOFT

84M0919

NOTE
:

9
If
a
particular
trouble
code
is
notproperly
stored
in

memory
(due
to
a
drop
in
ABSCM&H/U
power
supply,
etc
.)

when
a
problem
occurs,
the
trouble
code,
followed
bya

question
mark
"?",
appears
on
the
select
monitor
display
.

This
shows
it
may
be
an
unreliable
reading
.

9*
a*
refers
to
the
troubles
in
order
of
occurrence
(NEW
.

MID,
OLD
and
REF)
.

91

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

9
.
Select
Monitor
Function
Mode
LED
No
.
Signal
name
Display

1
Stop
light
switch
81

2
Valve
relaysignal
VR

3
Motor
relaysignal
MR

4
AT
ABS
signal
AT

5
--

6
ABS
warning
light
AW

7
Valve
relay
monitor
VM

8
Motor
relay
monitor
MM

9
CCM
signal
cm

10
--

B1
VR
MR
AT
-

AWVM
MM
CM
-

ooooa

F
;_1
F-7-1
P-1
F9-1
10

1:
MODE
FAO

-
ON
H
OFF
SIGNAL
-

Requirement
for
LED
"ON"

LED
No
.
1
Stop
light
switch
is
turned

pedal
depressed
.)

LED
No
.
2
Valve
relay
is
turned
OFF
.

LED
No
.
3
Motor
relay
is
turned
ON
.

LED
No
.
4
ABS
control
operates
.

LED
No
.
6
ABS
warning
light
is
ON
.

LED
No
.
7Valve
relay
is
turned
OFF
.

LED
No
.
8
Motor
relay
is
turned
ON
.

LED
No
.
9
ABS
control
operates
.

ON
.
(With
brake

97

4-4d
[T1
0A01
BRAKES
[ABS
5
.3i
TYPE]

10
.
Diagnostics
Chart
with
Select
Monitor

10
.
Diagnostics
Chart
with
Select

Monitor

I
TROUBLE
OCCURS
.I

A
:
BASIC
DIAGNOSTIC
CHART

Is
Select
Monitor
available?
No

Yes

Ask
the
customer
when
and
how
the
trouble
occurred
using
interview
check
list
.

I
PRE-INSPECTION
I

Use
select
monitor,
retrieve
trouble
code
in
function
mode
FBiand
record
the
code
.

Perform
diagnostics
in
accordance
with
trouble
code
.
No
corresponding
trouble
code

Diagnostics
Chart
for
On-board
Diagnosis
System

Inspection
using
General
Diagnostics
chart

Trouble
code
is
designated
or
ABS
warning
light
constantly
remains
on
.

Repair
.

Clear
memory
.

I
INSPECTION
MODE
I

Use
select
monitor,
retrieve
trouble
code
in
function
model
FB1and
recordthe
code
.

No
trouble
code
is
designated
and
ABS
warning
light
goes
out
after
turning
on
.

I
CONFIRMATION
TEST
I

END

B4M1076A

CAUTION
:

Remove
foreign
matter
(dust,
water,
etc
.)
from
the

ABSCM&H/U
connector
during
removal
and
installation
.

NOTE
:

To
check
harness
for
broken
wires
or
short
circuits,
shake

it
while
holding
it
or
the
connector
.

102

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

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

10
.
Diagnostics
Chart
withSelect
Monitor

D
"
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
:

"
ABS
warning
light
remains
on
.

"
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
.