Page 129 of 3342
4-4d
[T10E0]
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
D
"
NEW
21
(FBI)
F
R
.
SS
HARD
B4M0945
D
"
NEW
23
(FBI)
FL
.
SS
HARD
84M0946
D
"
NEW
25
(FBI)
RR
.
S
S
HARD
B4M0947
D
"
NEW
27
(FBI)
RL
.SS
HARD
84M0948
E
:
TROUBLE
CODE
21
FR
.
SS
HARD
-
ABNORMAL
FRONT
RH
ABS
SENSOR
(OPEN
CIRCUIT
OR
INPUT
VOLTAGE
TOO
HIGH)
-
F
:
TROUBLE
CODE
23
FL
.
SS
HARD
-
ABNORMAL
FRONT
LH
ABS
SENSOR
(OPEN
CIRCUIT
OR
INPUT
VOLTAGE
TOO
HIGH)
-
G
:
TROUBLE
CODE
25
RR
.
SS
HARD
-
ABNORMAL
REAR
RH
ABS
SENSOR
(OPEN
CIRCUIT
OR
INPUT
VOLTAGE
TOO
HIGH)
-
H
:
TROUBLE
CODE
27
RL
.
SS
HARD
-
ABNORMAL
REAR
LH
ABS
SENSOR
(OPEN
CIRCUIT
OR
INPUT
VOLTAGE
TOO
HIGH)
-
112
Page 130 of 3342
BRAKES
[ABS
5
.31
TYPE]
[T10H0]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
DIAGNOSIS
:
"
Faulty
ABS
sensor(Broken
wire,
input
voltage
too
high)
Faulty
harness
connector
TROUBLE
SYMPTOM
:
9
ABS
does
not
operate
.
WIRING
DIAGRAM
:
F49
ABS
control
module
and
hydraulic
control
unit
OUTBACK
with
step
roof
model
Bt5
O
O
P8
O
P8
[ft
LwI
O
8100
815
Front
ABS
sensorLH
Front
ABS
sensor
RH
Twisted
wire
Ft
Pt
OO
WEB
i
Twisted
wire
W
EB-
(2D
F1
100
F
172
-1
F3
1
F
U=
10
1
4
15161
7
1
8
Rear
ABS
sensor
LH
RearABS
sensor
RH
t
OUTBACK
with
step
roof
model
III
Rear
ABS
sensor
LH
j
~
RearABS
j
7
sensor
RH
I
~
I
L---------------J
F49
12345678910111131415
1
16
1
17
1
18
1
19
111
202122
23
4
252627
1
28
1
29
001
31
B4M1238
113
Page 131 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d
[T1oHyl
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
FR
(F05)
30
km/h
B4M0922
I1
0H1
(CHECK
OUTPUT
SELECT
MONITORF
ABS
SENSOR
USING
Read
the
ABS
sensoroutput
corres SUBARU LEGACY 1997 Service Repair Manual
4-4d
[T1oHyl
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
FR
(F05)
30
km/h
B4M0922
I1
0H1
(CHECK
OUTPUT
SELECT
MONITORF
ABS
SENSOR
USING
Read
the
ABS
sensoroutput
corres](/manual-img/17/57434/w960_57434-130.png)
4-4d
[T1oHyl
BRAKES
[ABS
5
.3i
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
FR
(F05)
30
km/h
B4M0922
I1
0H1
(CHECK
OUTPUT
SELECT
MONITORF
ABS
SENSOR
USING
Read
the
ABS
sensoroutput
corresponding
to
the
faulty
system
in
the
select
monitor
function
mode
.
NOTE
:
The
select
monitor
display
shows
that
the
front
right
wheel
is
rotating
at
30km/h
.
CHECK
:
Does
the
speed
indicated
on
the
display
change
in
response
to
the
speedometer
reading
during
acceleration/deceleration
when
the
steering
wheel
isin
the
straight-
ahead
position?
YES
:
Go
to
step
10H2
.
No
:
Go
to
step
10H9
.
1OH2
I
HECK
INSTALLATION
OF
ABS
SENSOR
.
Tighteningtorque
:
32
f
10
N~
m
(3.3
f
1
.0
kg-m,
24
±
7
ft-Ib)
CHECK
:
Are
the
ABS
sensor
installation
bolts
tight-
ened
securely?
,rES
:
Go
to
step
10H3
.
No
:
Tighten
ABS
sensor
installation
bolts
securely
.
10H3
I
CHECK
INSTALLATION
OFTONE
WHEEL
.
Tightening
torque
:
13±3
N~m
(1
.3±0
.3
kg-m,
9±2
.2
ft-Ib)
CHECK
:
Are
the
tone
wheel
installation
bolts
tight-
ened
securely?
ves
:
Go
to
step
10H4
.
No
:
Tightentone
wheel
installation
bolts
securely
.
114
Page 132 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T10H7]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
G4M0700
G4M0701
I
OH4
CHECK
ABS
SENSOR
GAP
.
Measure
tone
wheel-to-pole
piece
gap
over
entire
perim-
eterof
the
w SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[T10H7]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
G4M0700
G4M0701
I
OH4
CHECK
ABS
SENSOR
GAP
.
Measure
tone
wheel-to-pole
piece
gap
over
entire
perim-
eterof
the
w](/manual-img/17/57434/w960_57434-131.png)
BRAKES
[ABS
5
.31
TYPE]
[T10H7]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
G4M0700
G4M0701
I
OH4
CHECK
ABS
SENSOR
GAP
.
Measure
tone
wheel-to-pole
piece
gap
over
entire
perim-
eterof
the
wheel
.
CHECK
:
Is
the
gap
within
the
specifications
shown
in
the
following
table?
Front
wheel
Rear
wheel
Specifications
0
.9
-
1
.4
mm
(0
.035
-
0
.055
in)
0
.7
-
1.2
mm
(0
.028
-
0
.047
in)
,rES
:
Go
to
step
10H5
.
No
:
Adjust
the
gap
.
NOTE
:
Adjust
the
gap
using
spacers
(Part
No
.
26755AA000)
.
If
spacers
cannot
correct
the
gap,
replace
worn
sensor
or
worn
tone
wheel
.
10H5
CHECK
HUB
RUNOUT
.
Measure
hub
runout
.
CHECK
:
Is
the
runout
less
than0
.05
mm
(0
.0020
in)?
Go
to
step
10H6
.
No
:
Repair
hub
.
10H6
I
CHECKPOOR
CONTACT
IN
CONNECTORS
.
I
Turn
ignition
switch
to
OFF
.
CHECK
:
Is
there
poor
contact
in
connectors
between
ABSCM&HlU
and
ABS
sensor?
<
Ref
.
to
FOREWORD
[T3C1]
.*10
>
vES
:
Repair
connector
.
No
:
Go
to
step
10H7
.
I7Uli7
(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
the
current
diagnosis
still
being
output?
vES
:
Replace
ABSCM&H/U
.
No
:
Go
to
step
10H8
.
115
t
Sensor
gap
Sensor
gap
Page 133 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d
ITyoNS1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
Except
OUTBACK
model
1
2
D
84M0806E
OUTBACK
model
Front
Rear
zt
D
B4M
1036C
Except
OUTBACK
model
1
2
0
-V SUBARU LEGACY 1997 Service Repair Manual
4-4d
ITyoNS1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
Except
OUTBACK
model
1
2
D
84M0806E
OUTBACK
model
Front
Rear
zt
D
B4M
1036C
Except
OUTBACK
model
1
2
0
-V](/manual-img/17/57434/w960_57434-132.png)
4-4d
ITyoNS1
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
with
Select
Monitor
Except
OUTBACK
model
1
2
D
84M0806E
OUTBACK
model
Front
Rear
zt
D
B4M
1036C
Except
OUTBACK
model
1
2
0
-V+
B4M0807E
OUTBACK
model
Front
Rear
1
22
1
D
_v+
-_
B4M
1037C
10H8
CHECK
ANY
I
APPEARANCE
.THER
TROUBLE
CODES
CHECK
;
Are
other
trouble
codes
being
output?
vES
:
Proceed
with
the
diagnosis
corresponding
to
the
trouble
code
.
No
:
A
temporarypoor
contact
.
NOTE
:
Check
harness
and
connectors
between
ABSCM&H/U
and
ABS
sensor
.
10H9
CHECK
ABS
SENSOR
.
1)
Turn
ignition
switch
to
OFF
.
2)
Disconnect
connector
from
ABS
sensor
.
3)
Measure
resistanceof
ABS
sensor
connector
terminals
.
Terminal
Front
RH
No
.
1
-
No
.
2
:
Front
LHNo
.
1
-
No
.
2
:
Rear
RH
No
.
1
-
No
.
2
:
Rear
LH
No
.
1
-
No
.
2
:
CHECK
:
Is
the
resistance
between
0
.8
and
1
.2
kS2?
~
:
Go
to
step
10H10
.
No
:
Replace
ABS
sensor
.
10H10
CHECK
BATTERY
SHORT
OF
ABS
SENSOR
.
1)
Disconnect
connector
from
ABSCM&H/U
.
2)
Measure
voltage
between
ABS
sensor
and
chassis
ground
.
Terminal
Front
RH
No
.
1
(+)
-
Chassis
ground
(-)
:
Front
LH
No
.
1
(+)
-
Chassis
ground
(-)
:
Rear
RH
No
.
1
(+)
-
Chassis
ground
(-)
:
Rear
LH
No
.
1
(+)
-
Chassis
ground
(
)
:
CHECK
;
Is
the
voltage
less
than
1
V?
Go
to
step
10H11
.
No
:
Replace
ABS
sensor
.
116
Page 134 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.3i
TYPE]
[710H12]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
Except
OUTBACK
model
1
2
0
L
EV
B4M0807E
OUTBACK
model
Front
hear
2
1
D
-
B4M1037C
11
I
CHECK
BATTERY
SHORT SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.3i
TYPE]
[710H12]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
Except
OUTBACK
model
1
2
0
L
EV
B4M0807E
OUTBACK
model
Front
hear
2
1
D
-
B4M1037C
11
I
CHECK
BATTERY
SHORT](/manual-img/17/57434/w960_57434-133.png)
BRAKES
[ABS
5
.3i
TYPE]
[710H12]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
Except
OUTBACK
model
1
2
0
L
EV
B4M0807E
OUTBACK
model
Front
hear
2
1
D
-
B4M1037C
11
I
CHECK
BATTERY
SHORT
OF
ABS
SENSOR
.
1)
Turn
ignition
switch
to
ON
.
2)
Measure
voltage
between
ABS
sensor
and
chassis
ground
.
Terminal
Front
RH
No
.
1
(+)
-
Chassis
ground
(-)
:
Front
LHNo
.
1
(+)
-
Chassis
ground
(-)
:
Rear
RH
No
.
i
(+)
-
Chassis
ground
(-)
:
Rear
LHNo
.
1
(+)
-
Chassis
ground
(
)
:
CHECK
:
Is
the
voltage
less
than
1
V?
Go
to
step
10H72
.
No
:
Replace
ABS
sensor
.
2
CHECK
I
ABSCM&H
UNAND/ABSSENSOR
BETWEEN
1)
Turn
ignition
switch
to
OFF
.
2)
Connect
connector
to
ABS
sensor
.
3)
Measure
resistance
between
ABSCM&H/U
connector
terminals
.
Connector
&
terminal
Trouble
code
21
I
(F49)
No
.
11
-
No
.
12
:
Trouble
code
23
I
(F49)
No
.
9
-
No,
10
:
Trouble
code
25
I
(F49)
No
.
14
-
No
.
15
:
Trouble
code
27
I
(F49)
No
.
7
-
No
.
8
:
CHECK
;
Is
theresistance
between
0
.8
and
1
.2
kS2?
YES
:
Go
tostep
10H13
.
No
:
Repair
harness/connector
between
ABSCM&H/U
and
ABS
sensor
.
117
Page 135 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d
[r1oHy3l
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
F49
B4M1240A
I
I
-
r10H13
CHECK
BATTERY
SHORT
OFHARNESS
.
Measure
voltage
between
ABSCM&H/U
connector
and
chassis SUBARU LEGACY 1997 Service Repair Manual
4-4d
[r1oHy3l
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
F49
B4M1240A
I
I
-
r10H13
CHECK
BATTERY
SHORT
OFHARNESS
.
Measure
voltage
between
ABSCM&H/U
connector
and
chassis](/manual-img/17/57434/w960_57434-134.png)
4-4d
[r1oHy3l
BRAKES
[ABS
5
.31
TYPE]
10
.
Diagnostics
Chart
withSelect
Monitor
F49
B4M1240A
I
I
-
r10H13
CHECK
BATTERY
SHORT
OFHARNESS
.
Measure
voltage
between
ABSCM&H/U
connector
and
chassis
ground
.
Connector
&
terminal
Trouble
code
21
I
(F49)
No
.
11
(+)
-
Chassis
ground
Trouble
code
23
/
(F49)
No
.
9
(+)
-
Chassis
ground
Trouble
code
25
/
(F49)
No
.
14
(+)
-
Chassis
ground
l-)~
Trouble
code
27
/
(F49)
No
.
7
(+)
-
Chassis
ground
CHECK
:
Is
thevoltage
less
than
1
V?
,rES
:
Go
to
step
10H14
.
No
:
Repair
harness
between
ABSCM&H/U
and
ABS
sensor
.
I10H14
CHECK
BATTERY
SHORT
OFHARNESS
.
1)
Turn
ignition
switch
to
ON
.
2)
Measure
voltage
between
ABSCM&H/U
connector
and
chassis
ground
.
Connector
&
terminal
Trouble
code
21
/
(F49)
No
.
11
(+)
-
Chassis
ground
Trouble
code
23
/
(F49)
No
.
9
(+)
-
Chassis
ground
(-)
Trouble
code
25
I
(F49)
No
.
14
(+)
-
Chassis
ground
Trouble
code
27
/
(F49)
No
.
7
(+)
-
Chassis
ground
(-)
CHECK
:
Is
thevoltage
less
than
1
V?
,rES
:
Go
to
step
10H15
.
No
:
Repair
harness
between
ABSCM&H/U
and
ABS
sensor
.
1
10H15
I
CHECK
INSTALLATION
OF
ABS
SENSOR
.
Tightening
torque
:
32
±
10
N~m
(3
.3
f
1
.0
kg-m,
24
f
7
ft-Ib)
CHECK
:
Are
the
ABS
sensor
installation
bolts
tight-
ened
securely?
,res
:
Go
to
step
10H16
.
No
:
Tighten
ABS
sensor
installation
bolts
securely
.
118
Page 136 of 3342
BRAKES
LABS
5
.31
TYPE]
[T10H18]
4-4d
10
.
Diagnostics
Chart
with
Select
Monitor
G4M0700I
G4M0701
I
10H16
I
CHECK
INSTALLATION
OF
TONE
WHEEL
.
Tightening
torque
:
13
f
3
N~m
(1
.3
f
0
.3
kg-m,
9
f
2
.2
ft-Ib)
CHECK
:
Are
thetone
wheel
installation
bolts
tight-
ened
securely?
vES
:
Go
to
step
10H17
.
No
:
Tightentone
wheel
installation
bolts
securely
.
(CHECK
ABS
SENSOR
GAP
.
Measure
tone
wheel-to-poke
piece
gap
over
entire
perim-
eterof
the
wheel
.
CHECK
:
Is
the
gap
within
the
specifications
shown
in
the
following
table?
Front
wheel
Rear
wheel
Specifications
0
.9
-
1
.4
mm
(0
.035
-
0
.055
in)
0
.7
-
1
.2
mm
(0
.028
-
0
.047
in)
,rES
:
Go
tostep
10H18
.
No
:
Adjust
the
gap
.
NOTE
:
Adjustthe
gap
using
spacers
(Part
No
.
26755AA000)
.
If
spacers
cannot
correct
the
gap,
replace
worn
sensor
or
worn
tone
wheel
.
10H18
CHECK
HUB
RUNOUT
.
Measure
hub
runout
.
CHECK
:
Is
the
runout
less
than0
.05
mm
(0
.0020
in)?
Go
tostep
10H19
.
No
:
Repair
hub
.
119
T
Sensorgap
Sensor
gap