Page 161 of 3342
BRAKES
[ABS
5
.3i
TYPE]
[T10U5]
4-4d
10
.
Diagnostics
Chart
withSelect
Monitor
I
10U4
I
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?
,mss
:
Replace
ABSCM&H/U
.
No
:
Go
to
step
10U5
.
10U5
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
.
145
Page 162 of 3342
4-4d
[T1
0V0]
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
D
"
NEW
41
(FBI)
ECU
B4M0962
V
:
TROUBLE
CODE
41
ECU
-
ABNORMAL
ABS
CONTROL
MODULE
-
DIAGNOSIS
:
*
Faulty
ABSCM&H/U
TROUBLE
SYMPTOM
:
*
ABS
does
not
operate
.
WIRING
DIAGRAM
:
F49
ABS
control
module
and
hydrau
l
is
control
unit
E
F49
123456789101112131415
16171819
20
2122
23
24
252627
1
28
1
29
1
30
1
31
1
84M1246
146
Page 163 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.3i
TYPE]
[T10V5]4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
a
112131415161718
01112131415
11611711811912
1
23
24
2526
71
28
1
2130
1
31
1
1
La
-_
B4M
1243A
1
110111
CHECK
GROU SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.3i
TYPE]
[T10V5]4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
a
112131415161718
01112131415
11611711811912
1
23
24
2526
71
28
1
2130
1
31
1
1
La
-_
B4M
1243A
1
110111
CHECK
GROU](/manual-img/17/57434/w960_57434-162.png)
BRAKES
[ABS
5
.3i
TYPE]
[T10V5]4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
a
112131415161718
01112131415
11611711811912
1
23
24
2526
71
28
1
2130
1
31
1
1
La
-_
B4M
1243A
1
110111
CHECK
GROUND
CIRCUIT
OF
ABSCM&H/U
.
1)
Turn
ignition
switch
to
OFF
.
2)
Disconnect
connector
from
ABSCM&H/U
.
3)
Measure
resistance
between
ABSCM&H/U
and
chassis
ground
.
Connector
&
terminal
(F49)
No
.
23
-
Chassis
ground
:
CHECK
:
Is
the
resistance
less
than0
.5
S2?
YES
:
Go
to
step
10V2
.
No
:
Repair
ABSCM&H/U
ground
harness
.
CHECK
POOR
CONTACT
IN
CONNECTORS
.
CHECK
:
Is
there
poor
contact
in
connectors
between
battery,
ignition
switch
and
ABSCM&HIU?
<
Ref
.
to
FOREWORD
[T3C1]
.*10
>
Repair
connector
.
No
:
Go
to
step
10V3
.
10V3
CHECK
SOURCES
OF
SIGNAL
NOISE
.
CHECK
:
Is
thecar
telephone
orthe
wireless
transmit-
ter
properly
installed?
vES
:
Go
to
step
110114
.
No
:
Properly
install
the
car
telephone
or
the
wireless
transmitter
.
1
110114
I
CHECK
SOURCES
OF
SIGNAL
NOISE
.
I
CHECK
;
Are
noise
sources
(such
as
an
antenna)
installed
near
the
sensorharness?
.rES
:
Install
the
noise
sources
apart
from
the
sensor
harness
.
No
:
Go
to
step
10V5
.
10V5
CHECK
ABSCM&H/U
.
1)
Turn
ignition
switch
to
OFF
.
2)
Connect
all
connectors
.
3)
Erase
the
memory
.
4)
Perform
inspection
mode
.
5)
Read
outthe
trouble
code
.
CHECK
:
Is
the
same
trouble
codeas
in
the
current
diagnosis
still
being
output?
Replace
ABSCM&H/U
.
No
:
Go
to
step
10V6
.
147
Page 164 of 3342
4-4d
[T1ovs1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
10V6
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
.
148
Page 165 of 3342
4-4d
[r1owo]
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
D
"
NEW
42
(FBI)
LOW
VOLTAGE
84M0963
W
:
TROUBLE
CODE
42
LOW
VOLTAGE
-
SOURCE
VOLTAGE
IS
LOW
-
DIAGNOSIS
:
9
Power
source
voltage
of
the
ABSCM&H/U
is
low
.
TROUBLE
SYMPTOM
:
9
ABS
does
notoperate
.
WIRING
DIAGRAM
:
F49
ABS
control
module
and
hydraulic
control
unit
F2
8100
Fuse
IGNswe
No
.18
SBF-4
FL1
.25B
8100
f49
12345678910111131415
1121314151
69
~
~
16171819
20
2122
23242526
11
1213141
16171819
2027
1
28
1
29
1
30
1
31
1
84M
1245
150
Generator
Page 166 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T10W4]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
-
%mnnnur
B4M0430
[1
_
Owl
CHECKGENERATOR
.
1)
Start
engine
.
2)
Idling
after
warm-up
.
3)
Measure
voltage
betwe SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T10W4]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
-
%mnnnur
B4M0430
[1
_
Owl
CHECKGENERATOR
.
1)
Start
engine
.
2)
Idling
after
warm-up
.
3)
Measure
voltage
betwe](/manual-img/17/57434/w960_57434-165.png)
BRAKES
[ABS
5
.31
TYPE]
[T10W4]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
-
%mnnnur
B4M0430
[1
_
Owl
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
:
CHECK
:
Is
thevoltage
between
10
V
and
15
V?
U
:
Go
tostep
10W2
.
No
:
Repair
generator
.
1OW2
CHECK
BATTERY
TERMINAL
.
Turn
ignition
switch
to
OFF
.
Are
the
positive
and
negative
battery
termi-
nals
tightly
clamped?
0
:
Go
to
step
10W3
.
No
:
Tighten
the
clamp
of
terminal
.
(CHECK
INPUT
VOLTAGE
OF
ABSCM&H/U
.
F49
1
1
2131415
1
6
1
7
1
89
1
10
1
11
1
12
1
13
1
14
11
5
1
16
71819
2
1
23242526
728293031
1
'L
L
a
84M1243A
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
15
V?
,rES
:
Go
to
step
10W4
.
No
:
Repair
harness
connector
between
battery,
igni-
tion
switch
and
ABSCM&H/U
.
10W4
CHECK
GROUND
CIRCUIT
OF
ABSCM&HIU
.
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
SZ?
,rES
:
Go
tostep
10111115
.
No
:
Repair
ABSCM&H/U
ground
harness
.
151
Page 167 of 3342
4-4d
[rlows3
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
CHECK
POOR
CONTACT
IN
CONNECTORS
.I
CHECK
:
Is
there
poor
contact
in
connectors
between
generator,
battery
and
ABSCM&HIU?
<
Ref
.
to
FOREWORD
{T3C1]
.*i0
>
~,rES~
:
Repair
connector
.
No
:
Go
to
step
10W6
.
1OWS
I
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
the
current
diagnosis
still
being
output?
0
:
Replace
ABSCM&H/U
.
No
:
Go
to
step
10W7
.
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
.
152
Page 168 of 3342
4-4d
[T1
0X01
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
D
"
NEW
42
(FBI)
HIGH
VOLTAGE
B4M1268
X
:
TROUBLE
CODE
42
LOW
VOLTAGE
-
SOURCE
VOLTAGE
IS
HIGH
-
DIAGNOSIS
:
*
Power
source
voltage
of
the
ABSCM&H/U
is
high
.
TROUBLE
SYMPTOM
:
9
ABS
does
not
operate
.
WIRING
DIAGRAM
:
F49
f2
8100
Fuse
IGN
sw
No
.
18
SBF-4
FL1
.25B
8100
F49
1
23456
8910111
1415
4
1617181920212
11
11
21131141
1
51
1
61
1
11
1
81
1
9120
10
I
2ii2oi2y13"v13ii
232425
-26
B4M1245
154
Generator