wiring SUBARU LEGACY 1997 Service User Guide

4-4d
[T7BaI
BRAKES
[ABS
5
.3i
TYPE]

7
.
Diagnostics
Chart
for
ABS
Warning
Light
Circuit
and
Diagnosis
Circuit
Failure

1~
\

MV

B4M0430

71134
CHECKGENERATOR
.

1)
Start
the
engine
.

2)
Idle
theengine
.

3)
Measure
voltage
between
generator
and
chassis

ground
.

Terminal

Generator
8
terminal
(+)
-
Chassis
ground
(
)
:

CHECK
;
Is
the
voltage
between
10
and
15
V?

vES
:
Go
to
step
7B5
.

No
:
Repair
generator
.

7B5
CHECK
BATTERY
TERMINAL
.

Turn
ignition
switch
to
OFF
.

CHECK
:
Is
there
poor
contact
at
battery
terminal?

,rES
:
Repair
battery
terminal
.

No
:
Go
to
step
7B6
.

71136
CHECK
POWER
SUPPLY
OF
ABSCM
.

1)
Disconnect
connector
from
ABSCM&H/U
.

2)
Start
engine
.

3)
Idle
the
engine
.

4)
Measure
voltage
between
ABSCM&H/U
connector
and

chassis
ground
.

Connector
&
terminal

(F49)
No
.
1
(+)
-
Chassis
ground
(-)
:

CHECK
:
Is
thevoltage
between
10
and
15
V?

ves
:
Go
to
step
71137
.

No
:
Repair
ABSCM&H/U
power
supply
circuit
.

71137
1
CHECK
WIRING
HARNESS
.

1)
Disconnect
connector
(F2)
from
connector
(B100)
.

2)
Turn
ignition
switch
to
ON
.

CHECK
:
Does
the
ABS
warning
light
remain
off?

S
:
Go
to
step
7B8
.

No
:
Repair
front
wiring
harness
.

26

BRAKES
[ABS
5
.31
TYPE]
[T7B121
4-4d

7
.
Diagnostics
Chart
for
ABS
Warning
Light
Circuit
and
Diagnosis
Circuit
Failure

7B8
CHECK
PROJECTIONAT
ABSCM&H/U
.

1)
Turn
ignition
switch
to
OFF
.

2)
Check
for
broken
projection
at
the
ABSCM&H/U
termi

nal
.

CHECK
:
Are
the
projection
broken?

,res
:
Go
to
step
7139
.

No
:
Replace
ABSCM&H/U
.

-,
,

00000
~
o
00000
a
oooo1
~oo
oi
"
ooo~~

IIII
`'84M1237A

0

F2

B4M1236A
I

F2

5
4
320
9
1
8
1
7
1
6
1
190
80
7
0
6
~
5
413211

]L

B4M1236A

171319
I
CHECK
ABSCM&H/U
.

Measure
resistance
between
ABSCM&H/U
terminals
.

Terminals

No
.
21
-
No
.
23
:

CHECK
:
Is
the
resistance
more
than
1
MS2?

vES
:
Go
to
step
7810
.

No
:
Replace
ABSCM&H/U
.

7810
CHECK
WIRING
HARNESS
.

Measure
resistance
between
connector
(F2)
and
chassis

ground
.

Connector
&
terminal

(F2)
No
.
9
-
Chassis
ground
:

CHECK
:
Is
the
resistance
less
than0
.5
S2?

vES
:
Go
to
step
7811
.

No
:
Repair
harness
.

7811
CHECK
WIRING
HARNESS
.

1)
Connect
connector
to
ABSCM&H/U
.

2)
Measure
resistance
between
connector
(F2)
and
chas-

sis
ground
.

Connector
&
terminal

(F2)
No
.
9
-
Chassis
ground
:

CHECK
:
Is
the
resistance
more
than
1
MS2?

YES
:
Go
to
step
7812
.

No
:
Repair
harness
.

POOR
CONTACT
IN
ABSCM&H/U
7812

1
CONNECTOR
.
CONNECTOR
.

CHECK
:
Is
there
poor
contact
in
ABSCM&HlU
connec-

tor?
<
Ref
.
to
FOREWORD
[T3C1]
.*10
>

,rES
:
Repair
connector
.

No
:
Replace
ABSCM&H/U
.

27

4-4d
[-nco]
BRAKES
[ABS
5
.31
TYPE]
7
.
Diagnostics
Chart
for
ABS
Warning
Light
Circuit
and
Diagnosis
Circuit
Failure

C
:
TROUBLE
CODE
DOES
NOTAPPEAR
.

DIAGNOSIS
:

9
Diagnosis
circuit
is
open
.

TROUBLE
SYMPTOM
:

*
The
ABS
warning
light
turns
on
or
off
normally
butthe

start
code
cannot
be
read
out
in
the
diagnostic
mode
.

WIRING
DIAGRAM
:

F49
F2
B100

ABS
control
module
and
hydraulic
control
unit
Fuse

No
.
18
Fuse
v
w

c
:
i14
No
.
15

ABS

Combination
meter

oDiagnosis°E
connector

Diagnosis
terminal

B82
8100

11
11
1
1
21
1
31
14
1
1111
1910

i1
1
9
10
11
111
1
2

IGN
sw
SBF-4
FL1
.25B

rw

Q
m

Fuse

No
.19

SBF-3

0

1
4
10111
1

F49

123456789101112131415
16171819
20
2122
2324
25
26
27
1
28
1
29
1
30
1
31
1

84M1230
I

28

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

4-4d
[TSFO]
BRAKES
[ABS
5
.31
TYPE]
8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

F
:
TROUBLE
CODE
22
(FRONT
RH)

G
:
TROUBLE
CODE
24
(FRONT
LH)

H
:
TROUBLE
CODE
26
(REAR
RH)

I
:
TROUBLE
CODE
28
(REAR
LH)

-
ABNORMAL
ABS
SENSOR
(ABNORMAL
ABS
SENSOR
SIGNAL)
-

DIAGNOSIS
:

"
Faulty
ABS
sensor
signal
(noise,
irregular
signal,
etc
.)

Faulty
harness/connector

TROUBLE
SYMPTOM
:

9
ABS
does
not
operate
.

WIRING
DIAGRAM
:

f49

ABS
control
module
and
hydraulic
control
unit

OUTBACK
withstep
OO
roof
model
815
86

LL
]
Iwl

_-^
B15

~
B~~
_____===_-r
m--~~
Front
ABS
~
sensorLH

----
---
-----------
Front
ABS
-
-
----------
[Z1-1
~
sensor
RH

Twisted
~-
wire
F1Pt
OO

Twisted
wire
~
::M

Ft
100

1
3
1
10
4
78

Rear
ABS
sensorLH

RearABS
sensor
RH

I
OUTBACK
withsteproof
model
I
I
~
I

RearABS
«7
sensor
LH

II

RearABS
j

BE
sensor
RH

L-
-
-
--
-
-
-
-
-
-
-
-
-
--
-

QD

1
1
~
131415
1
§
17181911011111211
14
1

J
116117118119120121
223
24
6
2718
2930
31

B4M1238

40

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

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

J
:
TROUBLE
CODE
29

-
ABNORMAL
ABS
SENSOR
SIGNAL
(ANY

ONE
OF
FOUR)
-

DIAGNOSIS
:

"
Faulty
ABS
sensor
signal
(noise,
irregular
signal,
etc
.)

Faulty
tone
wheel

"
Wheels
turning
freely
for
a
long
time

TROUBLE
SYMPTOM
:

*
ABS
does
notoperate
.

WIRING
DIAGRAM
:

F49

ABS
control
module
and
hydraulic
control
unit

OUTBACK
with
steproof
model
8~5
O

(2D
QD
CD
(
:D

LLL]
IWI

0
100

1
2
1
10
1
4
15161
7
1
8
1

RearABS
sensorLH

RearABS
sensor
RH

r-----------------i
I
OUTBACK
withsteproof
model
I
I
Q
I

RearABS
sensor
LH

II
j
~
Rear
ABS
j
sensor
RH

I
O
I
~---------------
.J

Front
ABS
sensor
LH

Front
ABS
sensor
RH

F49

r-j
i
1
2
1
5
1
4
1
5
1
6
1
7
1
8
1
9
1
1
01
11
1
12
1
131415
ll
16171819
202122
4
26
4
7
1
28
1
29
1301
31
1

B4M1238

48

4-4d
[TsKO1
BRAKES
[ABS
5
.3i
TYPE]

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

K
:
TROUBLE
CODE
31
(FRONT
RH)

L
:
TROUBLE
CODE
33
(FRONT
LH)

M
:
TROUBLE
CODE
35
(REAR
RH)

N
:
TROUBLE
CODE
37
(REAR
LH)

-
ABNORMAL
INLET
SOLENOID
VALVE

CIRCUIT(S)
IN
ABSCM&H/U
-

DIAGNOSIS
:

Faulty
harness/connector

"
Faulty
inlet
solenoid
valve
in
ABSCM&H/U

TROUBLE
SYMPTOM
:

*
ABS
does
not
operate
.

WIRING
DIAGRAM
:

F49
SBF-4
FL1
.258

ABS
control
module
and
hydraulic
control
unit

F2
8100
IGN
sw

No

Fuse

8100
F49

12345678910111131415

H23
1
4
1
5
1
6
9
~
~
16171819
20
2122
23242526
12
1
13
1
14
1
1
51
115
1
181922728293031

B4M1245

54

Generator

4-4d
tTSOO1
BRAKES
[ABS
5
.31
TYPE]

8
.
Diagnostics
Chart
with
Trouble
Codeby
ABS
Warning
Light

O
:
TROUBLE
CODE
32
(FRONT
RH)

P
:
TROUBLE
CODE
34
(FRONT
LH)

Q
:
TROUBLE
CODE
36
(REAR
RH)

R
:
TROUBLE
CODE
38
(REAR
LH)

-
ABNORMAL
OUTLET
SOLENOID
VALVE

CIRCUIT(S)
IN
ABSCM&H/U
-

DIAGNOSIS
:

Faulty
harness/connector

"
Faulty
outlet
solenoid
valve
in
ABSCM&H/U

TROUBLE
SYMPTOM
:

*
ABS
does
not
operate
.

WIRING
DIAGRAM
:

F49
SBF-4
FL1
.258

ABS
control
module
and
hydraulic
control
unit

f2
8100
IGN
sw
Fuse

No
.18

8100
f49

1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
1
10
1
11
11
21
1
1415
1,
H3
46
16111819
20
2122
111213141516
11
/1
18
1
19
1
2
01
10
q271281291301311
23
2425
26~

sannizas
I

58

Generator

4-4d
ITBSO1
BRAKES
[ABS
5
.31
TYPE]

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

S
:
TROUBLE
CODE
41

-
ABNORMAL
ABSCONTROL
MODULE
-

DIAGNOSIS
:

9
Faulty
ABSCM&H/U
.

TROUBLE
SYMPTOM
:

9
ABS
does
not
operate
.

WIRING
DIAGRAM
:

F49

ABS
control
module
and
hydraulic
control
unit
E

F49

123456789101112131415

16171819
20
2122
23
242526
2728293031

B4M1246

62

4-4d
[TSTO1
BRAKES
[ABS
5
.31
TYPE]

8
.
Diagnostics
Chart
with
Trouble
Code
by
ABS
Warning
Light

T
:
TROUBLE
CODE
42

-
SOURCE
VOLTAGE
IS
ABNORMAL
.
-

DIAGNOSIS
:

9
Power
source
voltage
of
the
ABSCM&H/U
is
low
or
high
.

TROUBLE
SYMPTOM
:

*
ABS
does
notoperate
.

WIRING
DIAGRAM
:

F49
SBF-4
FL1.25B

ABS
control
module
and
hydraulic
control
unit

F2
8100
IGN
sw
No

Fuse

8100
F49

12345678910111131415

1
1
2
1
3
1
4
151
16171819
20
2122
23
24
2526
1
11
1
12
1
13
1
14
11
51
16~
2128
2930
31

B4M1245

66

Generator