Page 57 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4a
[TBAO1
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
A
:
LIST
OF
TROUBLE
CODE
Trouble
cod SUBARU LEGACY 1997 Service Repair Manual
4-4a
[TBAO1
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
A
:
LIST
OF
TROUBLE
CODE
Trouble
cod](/manual-img/17/57434/w960_57434-56.png)
4-4a
[TBAO1
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
A
:
LIST
OF
TROUBLE
CODE
Trouble
code
Contents
of
diagnosis
Ref
.
to
11
Start
code
e
Trouble
code
is
shown
afterstart
code
.
*
Only
start
code
is
shown
in
normal
condition
.
-
21
Front
right
ABS
sensor
[T8B0]*10
23
Abnormal
ABS
sensor
Front
left
ABS
sensor
[T8C0]*10
25
(Open
circuit
or
input
voltage
too
high)
Rear
right
ABS
sensor
[T8D0]*10
27
Rear
left
ABS
sensor
[T8E0]x10
22
Front
right
ABS
sensor
[T8F0]*10
24
Front
left
ABS
sensor
[T8G0]dr10
26
Abnormal
ABS
sensor
(Abnormal
ABS
sensor
signal)
Rear
right
ABS
sensor
[T8H0]*10
28
Rear
left
ABS
sensor
[T810]*10
29
Any
one
of
four
[T8J0]*10
31Front
rightinlet
valve
[T8K0]*10
32
Front
right
outlet
valve
[7800]*10
33
Front
left
inlet
valve
[TSLO]*10
34
Abnormal
solenoid
valve
circuit(s)
in
Front
left
outlet
valve
[T8PO]*10
35
ABS
control
module
and
hydraulic
unit
Rear
right
inlet
valve
[T8M0]*10
36Rear
right
outlet
valve
[T8QOj*10
37
Rear
left
inlet
valve
[T8N0]x10
38Rear
left
outlet
valve
[T8R0]*10
41
Abnormal
ABS
control
module
[T8SO1*10
42
Source
voltage
is
abnormal
.
[7870]*10
44
A
combination
of
AT
control
abnormal
[T8U0]t`r10
51
Abnormal
valve
relay
[T8V0]*10
52
Abnormal
motor
and/or
motor
relay
[T8W0]*10
54
Abnormal
stop
light
switch
(78X0]*10
56
Abnormal
G
sensor
output
voltage
[T8Y0)*10
30
Page 58 of 3342
4-4d
[rsBO]
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
B
:
TROUBLE
CODE
21
(FRONT
RH)
C
:
TROUBLE
CODE
23
(FRONT
LH)
D
:
TROUBLE
CODE
25
(REAR
RH)
E
:
TROUBLE
CODE
27
(REAR
LH)
-
ABNORMAL
ABS
SENSOR
(OPEN
CIRCUIT
OR
INPUT
VOLTAGE
TOO
HIGH)
-
DIAGNOSIS
:
"
Faulty
ABS
sensor
(Broken
wire,
input
voltage
too
high)
Faulty
harness
connector
TROUBLE
SYMPTOM
:
*
ABS
does
notoperate
.
WIRING
DIAGRAM
:
F49
ABS
control
module
and
hydraulic
control
unit
OUTBACK
with
steproof
model
B~5
O
O
P8
OO
Ft
100
1
3
1
10
70969
4
78
Rear
ABS
sensor
LH
RearABS
sensor
RH
r----------------
I
OUTBACK
with
steproof
model
I
I
Q
I
RearABS-C~l
sensor
LH
I
I
RearABS
j
~--m
sensor
RH
I
Q
I
------------J
Front
ABS
sensorLH
Front
ABS
sensor
RH
f{9
1
345678911112131415
1116
1
17
1
18
1
19
1
2
0
2
122
4
26
7
1
28
1
29
130131
1
B4M1238
32
Page 59 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[TSE2]4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
1
2
D
S2
B4MOSO6E
OUTBACK
model
Front
Rear
1
2
2
1
D
84M
1036C
Except
O SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[TSE2]4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
1
2
D
S2
B4MOSO6E
OUTBACK
model
Front
Rear
1
2
2
1
D
84M
1036C
Except
O](/manual-img/17/57434/w960_57434-58.png)
BRAKES
[ABS
5
.31
TYPE]
[TSE2]4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
1
2
D
S2
B4MOSO6E
OUTBACK
model
Front
Rear
1
2
2
1
D
84M
1036C
Except
OUTBACK
model
1
2
-
L
Vq
f
1
B4MO807E
OUTBACK
model
Front
Rear
2
1
D
_v
B4M1037C
$E1
CHECK
ABS
SENSOR
.
1)
Turn
ignition
switch
to
OFF
.
2)
Disconnect
connector
from
ABS
sensor
.
3)
Measure
resistance
of
ABS
sensor
connector
terminals
.
Terminal
Front
RH
No
.
1
-
No
.
2
:
Front
LH
No
.
1
-
No
.
2
:
Rear
RH
No
.
1
-
No,
2
:
Rear
LHNo
.
1
-
No
.
2
:
CHECK
:
Is
the
resistance
between
0
.8
and
1
.2
kS2?
,rES
:
Go
to
step
8E2
.
No
:
Replace
ABS
sensor
.
8E2
I
CHECK
BATTERY
SHORT
OF
ABS
SENSOR
.
1)
Disconnect
connector
from
ABSCM&H1U
.
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?
vES
:
Go
to
step
8E3
.
No
:
Replace
ABS
sensor
.
33
Page 60 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d[T8E3]
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
M112
L
V
21
B4MOB07E
OUTBACK
model
Front
Rear
1
2
DI
2
1
D
_v
-_
B4M1037C SUBARU LEGACY 1997 Service Repair Manual
4-4d[T8E3]
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
M112
L
V
21
B4MOB07E
OUTBACK
model
Front
Rear
1
2
DI
2
1
D
_v
-_
B4M1037C](/manual-img/17/57434/w960_57434-59.png)
4-4d[T8E3]
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
M112
L
V
21
B4MOB07E
OUTBACK
model
Front
Rear
1
2
DI
2
1
D
_v
-_
B4M1037C
8E3
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
.
1
(+)
-
Chassis
ground
(-)
:
Rear
LH
No
.
1
(+)
-
Chassis
ground
(
)
:
CHECK
:
Is
the
voltage
less
than
1
V?
vES
:
Go
tostep
8E4
.
No
:
Replace
ABS
sensor
.
ETWEEN
8E4
CHECK
ABSCM&H
U
AND,ABS
SENSOR
.
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
/
(F49)
No
.
11
-
No
.
12
:
Trouble
code
23
/
(F49)
No
.
9
-
No
.
10
:
Trouble
code
25
l
(F49)
No
.
14
-
No
.
15
:
Trouble
code
27
l
(F49)
No
.
7
-
No
.
8
:
CHECK
:
Is
theresistance
between
0
.8
and
1
.2
kSZ?
vES
:
Go
to
step
8E5
.
No
:
Repair
harness/connector
between
ABSCM&H/U
and
ABS
sensor
.
34
Page 61 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[r8E71
4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
F49
B4M
1240A
I
f
CHECK
BATTERY
SHORT
OF
HARNESS
.
Measure
voltage
between
ABSCM&H/U
connector
a SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.31
TYPE]
[r8E71
4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
F49
B4M
1240A
I
f
CHECK
BATTERY
SHORT
OF
HARNESS
.
Measure
voltage
between
ABSCM&H/U
connector
a](/manual-img/17/57434/w960_57434-60.png)
BRAKES
[ABS
5
.31
TYPE]
[r8E71
4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
F49
B4M
1240A
'I
f
CHECK
BATTERY
SHORT
OF
HARNESS
.
Measure
voltage
between
ABSCM&H/U
connector
and
chassis
ground
.
Connector
&
terminal
Trouble
code
21
I
(F49)
No
.
11
(+)
-
Chassis
ground
Trouble
code
23
l
(F49)
No
.
9
(+)
-
Chassis
ground
Trouble
code
25
l
(F49)
No
.
14
(+)
-
Chassis
ground
Trouble
code
27
/
(F49)
No
.
7
(+)
-
Chassis
ground
(-)
:
CHECK
:
Is
thevoltageless
than
1
V?
ves
:
Go
to
step
8E6
.
No
:
Repair
harness
between
ABSCM&H/U
and
ABS
sensor
.
18E6
I
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
l
(F49)
No
.
9
(+)
-
Chassis
ground
Trouble
code
25
l
(F49)
No
.
14
(+)
-
Chassis
ground
Trouble
code
27
/
(F49)
No
.
7
(+)
-
Chassis
ground
CHECK
:
Is
the
voltage
less
than
1
V?
ves
:
Go
to
step
8E7
.
No
:
Repair
harness
between
ABSCM&H/U
and
ABS
sensor
.
8E7
CHECK
INSTALLATION
OF
ABS
SENSOR
.
Tightening
torque
:
32
f
10
N~m
(3
.3
f
1
.0
kg-m,
24
f
7
ft-Ib)
CHECK
:
Are
the
ABS
sensor
installation
bolts
tight-
ened
securel
y?
vES
:
Go
to
step
8E8
.
No
:
Tighten
ABS
sensor
installation
bolts
securely
.
35
Page 62 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
4-4d
[TSES1
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
G4M0700
I
Rear
Sensor
gap
G4M0701
8E8
I
CHECK
INSTALLATION
OFTONE
WHEEL
.
Tightening
torque
:
1 SUBARU LEGACY 1997 Service Repair Manual
4-4d
[TSES1
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
G4M0700
I
Rear
Sensor
gap
G4M0701
8E8
I
CHECK
INSTALLATION
OFTONE
WHEEL
.
Tightening
torque
:
1](/manual-img/17/57434/w960_57434-61.png)
4-4d
[TSES1
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
G4M0700
I
Rear
Sensor
gap
G4M0701
8E8
I
CHECK
INSTALLATION
OFTONE
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?
,rES
:
Go
to
step
8E9
.
No
:
Tightentone
wheel
installation
bolts
securely
.
8E9
I
CHECK
ABS
SENSOR
GAP
.
Measure
tone
wheel-to-pole
piece
gap
over
entire
perim-
eter
of
the
wheel
.
CHECK
;
Is
the
gap
within
the
specifications
shown
in
the
following
table?
Front
wheel
Rear
wheel
Specifications0
.9
-
1
.4
mm
(0
.035
-
0
.055
in)
0
.7
-
1
.2
mm
(0
.028
-
0
.047
in)
ves
:
Go
to
step
8E10
.
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
.
8E10
CHECK
HUB
RUNOUT
.
Measure
hub
runout
.
CHECK
:
Is
the
runouf
less
than
0
.05
mm
(0
.0020
in)?
vES
:
Go
to
step
8E11
.
No
:
Repair
hub
.
36
Sensorgap
Page 63 of 3342
![SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.3i
TYPE]
[T8E13]
4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
1
2
D
L
S2
B4M0818E
OUTBACK
model
Front
Rear
1
2
J
T~
2
1
L
2
B4M1042C
SUBARU LEGACY 1997 Service Repair Manual
BRAKES
[ABS
5
.3i
TYPE]
[T8E13]
4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
1
2
D
L
S2
B4M0818E
OUTBACK
model
Front
Rear
1
2
J
T~
2
1
L
2
B4M1042C](/manual-img/17/57434/w960_57434-62.png)
BRAKES
[ABS
5
.3i
TYPE]
[T8E13]
4-4d
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
Except
OUTBACK
model
1
2
D
L
S2
B4M0818E
OUTBACK
model
Front
Rear
1
2
J
T~
2
1
L
2
B4M1042C
CHECK
GROUND
SHORT
OF
ABS
SENSOR
.
1)
Turn
ignition
switch
to
ON
.
2)
Measure
resistance
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
LHNo
.
1
-
Chassis
ground
:
CHECK
:
Is
the
resistance
more
than
1
MS2?
,rES
:
Go
to
step
8E12
.
No
:
Replace
ABS
sensor
and
ABSCM&H/U
.
CHECK
GROUND
SHORT
OFHARNESS
.
1)
Turn
ignition
switch
to
OFF
.
2)
Connect
connector
to
ABS
sensor
.
3)
Measure
resistance
between
ABSCM&H/U
connector
terminal
and
chassis
ground
.
Connector
&
terminal
Trouble
code
21
I
(F49)
No
.
11
-
Chassis
ground
:
Trouble
code
23
l
(F49)
No
.
9
-
Chassis
ground
:
Trouble
code
25
I
(F49)
No
.
14
-
Chassis
ground
:
Trouble
code
27
/
(F49)
No
.
7
-
Chassis
ground
:
CHECK
;
Is
the
resistance
more
than
1
MS2?
,rES
:
Go
to
step
8E13
.
No
:
Repair
harness
between
ABSCM&H/U
and
ABS
sensor
.
Replace
ABSCM&H/U
.
(CHECK
POOR
CONTACT
IN
CONNECTORS
.
CHECK
:
Is
there
poor
contact
in
connectors
between
ABSCM&HIU
and
ABS
sensor?
<
Ref
.
to
FOREWORD
[T3C1]
.*10
>
vES
:
Repair
connector
.
No
:
Go
to
step
8E14
.
37
Page 64 of 3342
4-4d
[T8E14]
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light
I
-
f
8E14
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
the
current
diagnosis
still
being
output?
ves
:
Replace
ABSCM&H/U
.
No
:
Go
to
step
8E15
.
I8E1
5
CHECK
ANY
IAPPEARANCE
.THER
TROUBLE
CODES
Are
other
trouble
codes
being
output?
Proceed
with
the
diagnosis
corresponding
to
the
trouble
code
.
No
:
A
temporarypoor
contact
.
NOTE
:
Check
harness
and
ABS
sensor
.
and
connectors
between
ABSCM&H/U
38