Page 169 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T1
0X3]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
l
o
-
-
;mnnwr
B4M0430
F49
I,vC~j
84M
1234A
I
10X1
CHECKGENERATOR
.
1)
Start
engine
.
2)
Idling
after
warm-u SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T1
0X3]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
l
o
-
-
;mnnwr
B4M0430
F49
I,vC~j
84M
1234A
I
10X1
CHECKGENERATOR
.
1)
Start
engine
.
2)
Idling
after
warm-u](/manual-img/17/57434/w960_57434-168.png)
BRAKES
[ABS
5
.31
TYPE]
[T1
0X3]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
l
o
-
-
;mnnwr
B4M0430
F49
I,vC~j
84M
1234A
I
10X1
CHECKGENERATOR
.
1)
Start
engine
.
2)
Idling
after
warm-up
.
3)
Measure
voltage
between
generator
B
terminal
and
chassis
ground
.
Terminal
Generator
B
terminal
-
Chassis
ground
:
K
;
Is
the
voltage
between
10
V
and
17V?
~,rES~
:
Go
tostep
10X2
.
No
:
Repair
generator
.
10X2
I
CHECK
BATTERY
TERMINAL
.
Turn
ignition
switch
to
OFF
.
CHECK
;
Are
the
positive
and
negative
battery
termi-
nals
tightly
clamped?
Go
to,
step
10X3
.
No
:
Tighten
the
clamp
of
terminal
.
10X3
I
CHECK
INPUT
VOLTAGEOF
ABSCM&H/U
.
1)
Disconnect
connector
from
ABSCM&H/U
.
2)
Run
the
engine
at
idle
.
3)
Measure
voltage
between
ABSCM&H/U
connector
and
chassis
ground
.
Connector
&
terminal
(F49)
No
.
1
(+)
-
Chassis
ground
(-)
:
CHECK
:
Is
thevoltage
between
10
V
and
17V?
,rES
:
Go
to
step
10X4
.
No
:
Repair
harness
connector
between
battery,
igni-
tion
switch
and
ABSCM&H/U
.
155
Page 170 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d
[Tioxai
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
(~4~
a
11
6M
8119120121
242526
7
8293031
1
SL
B4M1243A
10X4
CHECK
GROUND
CIRCUIT
OF
ABSCM&H/U
.
1)
Turn
ignition
s SUBARU LEGACY 1997 Service Repair Manual
4-4d
[Tioxai
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
(~4~
a
11
6M
8119120121
242526
7
8293031
1
SL
B4M1243A
10X4
CHECK
GROUND
CIRCUIT
OF
ABSCM&H/U
.
1)
Turn
ignition
s](/manual-img/17/57434/w960_57434-169.png)
4-4d
[Tioxai
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
(~4~
a
11
6M
8119120121
242526
7
8293031
1
SL
B4M1243A
10X4
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?
0
:
Go
to
step
10X5
.
No
:
Repair
ABSCM&H/U
ground
harness
.
10X5
I
CHECK
POOR
CONTACT
IN
CONNECTORS
.
I
Is
there
poor
contact
in
connectors
between
generator,
battery
and
ABSCM&HlU?
<
Ref
.
to
FOREWORD
[T3C1]
.*10
>
Repair
connector
.
No
:
Go
to
step
10X6
.
10X6
CHECK
ABSCM&H/U
.
1)
Connect
all
connectors
.
2}
Erase
the
memory
.
3)
Perform
inspection
mode
.
4)
Read
out
the
trouble
code
.
~HEC~c
:
Is
the
same
trouble
code
as
in
the
current
diagnosis
still
being
output?
Replace
ABSCM&H/U
.
No
:
Go
to
step
10X7
.
10X7
CHECK
ANY
I
APPEARANCE
.
O
THER
TROUBLE
CODES
CHECK
:
Are
other
trouble
codes
being
output?
0
:
Proceed
with
the
diagnosis
corresponding
to
the
trouble
code
.
No
:
A
temporary
poor
contact
.
156
Page 171 of 3342
4-4d
[T1oYO]
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
D
"
NEW
44
(FBI)
CCM
LINE
B4M0964
Y
:
TROUBLE
CODE
44
CCM
LINE
-
A
COMBINATION
OF
AT
CONTROL
ABNORMALS
-
DIAGNOSIS
:
9
Combination
of
AT
control
faults
TROUBLE
SYMPTOM
:
9
ABS
does
not
operate
.
WIRING
DIAGRAM
:
F49
ABS
control
module
and
hydraulic
control
unit
Fuse
IGN
sw
SBF-4
FL1
.25B
No
.
16
f45B61B54
m
JE
O
~--I
1
1
Transmission
control
module
3100
B56
834855B56
1
44
1
4
910
1/16191
1
011
1
1121
191101
1
11121131141
1A
F49
123456789101112131415
16Y8"2
1819
ZO2
1
2324
5
2627
9
30
31
8100
f45
1
10
B4M1247
158
Page 172 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T10Y3]
4-4d
10
.
Diagnostics
Chart
withSelect
Monitor
1997
(F00)
AB
S
4WD
"
AT
H4M
1117
B56
110191817
1
6
5
43
2
1
0
1
91
1
0
1
71
1
1
4i
1
1211
0
L
V
84M
1251
A SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T10Y3]
4-4d
10
.
Diagnostics
Chart
withSelect
Monitor
1997
(F00)
AB
S
4WD
"
AT
H4M
1117
B56
110191817
1
6
5
43
2
1
0
1
91
1
0
1
71
1
1
4i
1
1211
0
L
V
84M
1251
A](/manual-img/17/57434/w960_57434-171.png)
BRAKES
[ABS
5
.31
TYPE]
[T10Y3]
4-4d
10
.
Diagnostics
Chart
withSelect
Monitor
1997
(F00)
AB
S
4WD
"
AT
H4M
1117'
B56
110191817
1
6
5
43
2
1
0
1
91
1
0
1
71
1
1
4i
1
1211
0
L
V
84M
1251
A
1
CHECK
I
USING
SELECT
.
1)
Press
[F],[0]
and
[0]
on
the
select
monitor
.
2)
Read
the
select
monitor
display
.
CHECK
:
Is
an
ABSCM&HI
U
for
AT
model
installed
on
a
MT
model?
vES
:
Replace
ABSCM&H/U
.
No
:
Go
tostep
10Y2
.
1
10Y2
I
CHECK
GROUND
SHORT
OF
HARNESS
.
1)
Turn
ignition
switch
to
OFF
.
2)
Disconnect
two
connectors
from
TCM
.
3)
Disconnect
connector
from
ABSCM&H/U
.
4)
Measure
resistance
between
ABSCM&H/U
connector
and
chassis
ground
.
Connector
&
terminal
(F49)
No
.
3
-
Chassis
ground
:
CHECK
:
Is
the
resistance
more
than
1
1140?
,rES
:
Go
to
step
10Y3
.
No
:
Repair
harness
between
TCM
and
ABSCM&H/U
.
10Y3
CHECK
TCM
.
1)
Connect
all
connectors
to
TCM
.
2)
Turn
ignition
switch
to
ON
.
3)
Measure
voltage
between
TCM
connector
terminal
and
chassis
ground
.
Connector
&
terminal
(B55)
No
.
5
(+)
-
Chassis
ground
(
)
:
CHECK
:
Is
thevoltage
between
10
V
and
15
V?
Go
to
step
10Y5
.
No
:
Go
tostep
10Y4
.
159
Page 173 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d
[T11ova1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
1
10Y4
I
CHECK
A7
.
1s
the
AT
functioning
normally?
0
:
Replace
TCM
.
No
:
Repair
AT
.
1
10Y5
I
CHECK
OPEN
CIRCU SUBARU LEGACY 1997 Service Repair Manual
4-4d
[T11ova1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
1
10Y4
I
CHECK
A7
.
1s
the
AT
functioning
normally?
0
:
Replace
TCM
.
No
:
Repair
AT
.
1
10Y5
I
CHECK
OPEN
CIRCU](/manual-img/17/57434/w960_57434-172.png)
4-4d
[T11ova1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
1
10Y4
I
CHECK
A7
.
1s
the
AT
functioning
normally?
0
:
Replace
TCM
.
No
:
Repair
AT
.
1
10Y5
I
CHECK
OPEN
CIRCUIT
OFHARNESS
.I
Measure
voltage
between
ABSCM&HlU
connector
and
chassis
ground
.
Connector
&
terminal
(F49)
No
.
3
(+)
-
Chassis
ground
(F49)
No
.
31
(+)
-
Chassis
ground
(
)
:
c~c~c
:
Is
thevoltage
more
than
10V?
Go
to
step
10Y6
.
No
:
Repair
harness/connector
between
AT
control
moduleand
ABSCM&H/U
.
10Y6
CHECK
POOR
CONTACT
IN
CONNECTORS
.
Is
there
poor
contact
in
connectors
between
AT
control
module
and
ABSCM&HIU?
<
Ref
.
to
FOREWORD
[T3CI]
.*10
>
Repair
connector
.
Go
to
step
10Y7
.
I
10Yt
ICHECK
ABSCM&H/U
.
1)
Connect
all
connectors
.
2)
Erase
the
memory
.
3}
Perform
inspection
mode
.
4}
Read
outthe
trouble
code
.
O
:
Is
the
same
trouble
code
as
in
thecurrent
diagnosis
still
being
output?
0
:
Replace
ABSCM&H/U
.
o
:
Go
to
step
10Y8
.
10Y8
CHECK
ANY
I
APPEARANCE
.THER
TROUBLE
CODES
cK
:
Are
other
trouble
codes
being
output?
0
:
Proceed
with
the
diagnosis
corresponding
to
the
trouble
code
.
No
:
A
temporary
poor
contact
.
160
Page 174 of 3342
4-4d
[T1
0Z0]
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
D
"
NEW
44
(FBI)
CCM
OPEN
B4M0965
Z
:
TROUBLE
CODE
44
CCM
OPEN
-
A
COMBINATIONOF
AT
CONTROL
ABNORMALS
-
DIAGNOSIS
:
9
Combination
of
AT
control
faults
TROUBLE
SYMPTOM
:
9
ABS
does
notoperate
.
WIRING
DIAGRAM
:
Fuse
IGN-1sw
SBF-4
FL1
.258
F49
ABS
control
module
and
hydraulic
control
unit
No
.
16
J
Ei
E
Transmission
control
module
3D100
P1
1213149161
1213141bl6l/lb
1
/1
b19liull
11121
19110111114131141A
glIZ11311411511611
/JIM
(~D
r--l
112131415161718191101llll2ll-3Fl4Tl-51
q
11611711811912012122
23
24
25
26
27
1
28
1
29
1
30
1
31
1
8100
F45
4=1
1161718-19
21131
1
41
1
10
B4M1247
I
162
Page 175 of 3342
BRAKES
[ABS
5
.31
TYPE]
[T1
0Z2]
4-4d
10
.
Diagnostics
Chart
withSelect
Monitor
1021
CHECK
BATTERY
SHORT
OF
HARNESS
1)
Turn
ignition
switch
to
OFF
.
2)
Disconnect
two
connectors
from
AT
control
module
.
3)
Disconnect
connector
from
ABSCM&H/U
.
4)
Measure
voltage
between
ABSCM&H/U
connector
and
chassis
ground
.
Connector
&
terminal
(F49)
No
.
3
(+)
-
Chassis
ground
(-)
:
CHECK
:
Is
the
voltage
less
than
1
V?
,rES
:
Go
to
step
1022
.
No
:
Repair
harness
between
AT
control
module
and
ABSCM&H/U
.
CHECK
BATTERY
SHORT
OFHARNESS
.t
1)
Turn
ignition
switch
to
ON
.
2)
Measure
voltage
between
ABSCM&H/U
connector
and
chassis
ground
.
Connector
&
terminal
(F49)
No
.
3
(+)
-
Chassis
ground
(-)
:
CHECK
:
Is
the
voltage
less
than
1
V?
Go
to
step
1023
.
No
:
Repair
harness
between
AT
control
module
and
ABSCM&H/U
.
163
Page 176 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d
[T1oza1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
I
10Z3
I
CHECK
OPEN
CIRCUIT
OF
HARNESS
.I
1)
Turn
ignition
switch
to
OFF
.
2)
Connect
all
connectors
to
TCM
.
3)
Tu SUBARU LEGACY 1997 Service Repair Manual
4-4d
[T1oza1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
I
10Z3
I
CHECK
OPEN
CIRCUIT
OF
HARNESS
.I
1)
Turn
ignition
switch
to
OFF
.
2)
Connect
all
connectors
to
TCM
.
3)
Tu](/manual-img/17/57434/w960_57434-175.png)
4-4d
[T1oza1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
I
10Z3
I
CHECK
OPEN
CIRCUIT
OF
HARNESS
.I
1)
Turn
ignition
switch
to
OFF
.
2)
Connect
all
connectors
to
TCM
.
3)
Turn
ignition
switch
to
ON
.
4)
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
13
V?
Go
to
step
1024
.
No
:
Repair
harness/connector
between
TCM
and
ABSCM&H/U
.
1
10Z4
I
CHECK
POOR
CONTACT
IN
CONNECTORS
.I
Turn
ignition
switch
to
OFF
.
CHECK
:
Is
there
poor
contact
in
connectors
between
A
T
control
module
and
ABSCM&H/U?
<
Ref
.
to
FOREWORD
(T3C1]
.*10
>
,res
:
Repair
connector
.
No
:
Go
to
step
1025
.
diagnosis
still
being
output?
0
:
Replace
ABSCM&H/U
.
No
:
Go
to
step
1026
.
10Z5
I
CHECK
ABSCM&HIU
.
1)
Connect
all
connectors
.
2)
Erase
the
memory
.
3)
Perform
inspection
mode
.
4)
Read
outthe
trouble
code
.
CHECK
:
!s
the
same
trouble
code
as
in
the
current
1026
CHECK
ANY
OTHER
TROUBLE
CODES
APPEARANCE
.
CHECK
:
Are
other
trouble
codes
being
output?
.rES
:
Proceed
with
the
diagnosis
corresponding
to
the
trouble
code
.
No
:
A
temporary
poor
contact
.
164