wiring SUBARU LEGACY 1997 Service Repair Manual

8
.
Electrical
Wiring
Harness
and
Ground
Point

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

R17
1
Black
A-3
Rear
defogger
(Power)

R18
2
Black
B-3
Rear
speaker
RH

R19
2B-3
High-mounted
stop
light

R20
2
Blue
B-2
Trunk
room
light

R21
2
Black
B-2
Rear
speaker
LH

R22
1
Brown
B-1
Rear
door
switch
LH

R23
3
B-2
Power
antenna

R24
6B-3
R60
Trunk
lid
cord(Without
security
system)

8
B-3
R60
Trunk
lid
cord
(With
security
system)

R25
2
Black
B-4
Rear
defogger
condenser

R26
4
B-4
Rear
combination
light
RH

R27
2
B-4
Trunk
room
light
switch

R28
4
B-3
Rear
combination
light
LH

R45
6
B-4
Trailer
connector
(SUS
model)

R47
3B-3Fueltank
pressure
sensor

R60
6B-4
R24
Rear
wiring
harness
(Without
security
system)

8B-4
R24
Rear
wiring
harness
(With
security
system)

R61
3B-4
Key
switch
(Security)

R62
4B-4
Rear
finisher
light
RH

R63
2B-3
License
plate
light

R64
4B-3
Rear
finisher
light
LH

R65
1
Black
A-2
Rear
defogger(Ground)

R66
2
Black
B-4
E
High-mounted
stop
light
(Rear
spoiler)

'
:
Non-colored

3

A

B

C

D

8
.
REAR
END
WIRING
HARNESS
AND
GROUND
POINT
OF
SEDAN

1
1
2

1

3

R65

1
R17
,

R19

4

\
R66

GD
A
~
~
R45
i

O
~~`
R18
''r
~
R25

R21
~
~O
\

R22
O
R20
R24
R47
~---

R23R2g
'
:
R60
R62

o

GB-9
0

~~,
.~I
~~I)~1

B6M0104B

2
R63R26
R64R27

R61~

~
GB-9

3
[D808]

B6M0823A

4

A

B

C

D

BRAKES
44

Page

S
SPECIFICATIONS
AND
SERVICE
DATA

1
.
Brakes

C
COMPONENT
PARTS
...........
.
.
.
.....................
.
.
......
..
.
.
.
..........................

1
.
FrontDisc
Brake

2
.
Rear
Disc
Brake

3
.
Rear
Drum
Brake

4
.
Master
Cylinder

5
.
Brake
Booster

6
.
ABS
System
7
.
Hill
Holder

8
.
Parking
(Hand)
Brake
9
.
ABS/TCS
System

10
.
ABS
System(ABS
5
.3i
Type)
...
....
.
...
..........................
.
.
...
.
.............

W
SERVICE
PROCEDURE
...............
.
.
......
.
.
...
.
....................
.
.
.
.
.
.
...
.
...
.
.......

1
.
Front
Disc
Brake
2
.
Rear
Disc
Brake

3
.
Rear
Drum
Brake
4
.
Parking
Brake
(Rear
Disc
Brake)
5
.
Master
Cylinder

6
.
Brake
Booster

7
.
Brake
Hose
8
.
Hill
Holder

9
.
Parking
Brake
Lever

10
.
Parking
Brake
Cable

11
.
Air
Bleeding
(Without
TCS
model)

12
.
Brake
Fluid
Replacement

13
.
Proportioning
Valve

14
.
ABS
Sensor

15
.
Hydraulic
Unit
for
ABS
System

16
.
ABS
Control
Module

17
.
G
Sensor
for
ABS
System

18
.
Brake
Hose
and
Pipe
am
.
.
.....
.
.................................
.
.
...
.
.....
..

19
.
Air
Bleeding
(With
TCS
model)

20
.
Hydraulic
Unit
for
ABS/TCS
System

21
.
ABS/TCS
Control
Module

22
.
Hydraulic
Unit
for
ABS
System
(ABS
5
.3
Type)

23
.
ABS
Control
Module
(ABS
5
.3
Type)

24
.
G
Sensor
for
ABS
System
(ABS
5
.3
Type)

25
.
ABS
Control
Module
and
Hydraulic
Control
Unit
(ABSCM&H/U)
[ABS
5
.3i
Type]
.
.
.
.
.
.
.
...
.
.
.
.
.
..
.
.
...................................
.
...
.
.
.........
..........
26
.
ABS
Sensor
(ABS
5
.3i
Type)
....
...........................................
.
.
....
.
...
.
27
G
Sensor
(ABS
5
3i
T
e)

2

....
.2

....
.4

........
.
.
..
.4

....
..
.15

....
..
.15
yp
....
.
.
......
...
.
...................................
.
.
.
.
.......
.
.
.....

K
DIAGNOSTICS

1
.
Entire
BrakeSystem

2
.
Hill
Holder

PRECAUTION
FORSUPPLEMENTAL
RESTRAINT
SYSTEM
"AIRBAG"
The
Supplemental
Restraint
System
"Airbag"
helps
to
reduce
the
risk
or
severity
of
injury
to
the
driver
in
a
frontal
collision
.
The
Supplemental
Restraint
System
consists
of
an
airbag
module
(located
in
the
center
of
the
steer-
ing
wheel),sensors,
a
control
module,warning
light,
wiring
harness
and
roll
connector
.
Information
necessary
to
servicethe
safety
is
included
in
the"5-5
.
SUPPLEMENTAL
RESTRAINT
SYSTEM"
ofthis
Service
Manual
.
WARNING
:
"
To
avoid
rendering
the
Airbag
system
inoperative,
which
could
lead
to
personal
injury
or
death
in
the
event
of
a
severe
frontal
collision,
all
maintenance
must
be
performed
byan
authorized
SUBARU
dealer
.
"
Improper
maintenance,
including
incorrect
removal
and
installation
of
the
Airbag
system,
can
lead
to
personal
injury
caused
by
unintentional
activation
of
the
Airbag
system
.
"
All
Airbag
system
electrical
wiring
harnesses
and
connectors
are
covered
with
yellow
outer
insu-
lation
.
Do
not
use
electrical
test
equipment
on
any
circuit
relatedtothe
Supplemental
Restraint
System
"Airbag"
.

4-4
twisoot
SERVICE
PROCEDURE
18
.
Brake
Hose
and
Pipe

18
.
Brake
Hoseand
Pipe

SUPPLEMENTAL
RESTRAINT
SYSTEM
"AIRBAG"

Airbagsystem
wiring
harness
is
routed
near
the
center

brake
pipe
.

CAUTION
:

All
Airbag
system
wiring
harness
and
connectors
are

colored
yellow
.
Do
not
use
electrical
test
equipment
on

these
circuit
.

o
Be
careful
not
to
damage
Airbag
system
wiring
har-

ness
when
servicing
thecenter
brake
pipe
.

A
:
REMOVAL
AND
INSTALLATION

CAUTION
:

When
removing
and
installing
the
brake
pipe,
make

sure
that
it
is
notbent
.

"
After
installing
the
brake
pipe
and
hose,bleed
the
air
.

"
After
installing
the
brake
hose,
make
sure
that
if
does

not
touch
the
tire
or
suspension
assembly,
etc
.

4

4-4d
[T1oo]
BRAKES
[ABS
5
.31
TYPE]

1
.
Supplemental
Restraint
System
"Airbag"
-
2
.
Pre-inspection

1
.
Supplemental
Restraint
System

"Airbag"

Airbagsystem
wiring
harness
is
routed
near
the
ABS

sensor,
ABS
control
module
and
hydraulic
control
unit
.

CAUTION
:

All
Airbag
system
wiring
harness
and
connectors
are

colored
yellow
.
Do
not
use
electrical
test
equipment
on

these
circuit
.

e
Be
careful
not
to
damage
Airbag
system
wiring
har-

ness
when
servicing
the
ABS
sensor,
ABS
control
mod-

ule
and
hydraulic
control
unit
.

2
.
Pre-inspection
Before
performing
diagnostics,
check
the
following
items

which
might
affect
ABS
problems
:

A
:
MECHANICAL
INSPECTION

1
.
POWER
SUPPLY

1)
Measure
battery
voltage
and
specific
gravity
of
electro-

lyte
.

Standard
voltage
:
12
V,
or
more

Specific
gravity
:
Above
1
.260

2)
Check
the
condition
of
the
main
and
other
fuses,
and

harnesses
and
connectors
.
Also
check
for
proper
ground-

ing
.

2
.
BRAKE
FLUID

1)
Check
brake
fluidlevel
.

2)
Check
brake
fluid
leakage
.

3
.
BRAKEDRAG

Check
brake
drag
.
<
Ref
.
to
4-4
[K100].*1
>

4
.
BRAKE
PADAND
ROTOR

Check
brake
padand
rotor
.
<
Ref
.
to
4-4
[K100].*1
>

5
.
TIRE
SPECIFICATIONS,
TIRE
WEARAND
AIR

PRESSURE

Check
tire
specifications,
tire
wear
and
air
pressure
.
<
Ref
.

to
4-2
[S1
A1
],
[S1
A2]
.*1
>

2

4-4d
[T1oo]
BRAKES
[ABS
5
.31
TYPE]

1
.
Supplemental
Restraint
System
"Airbag"
-
2
.
Pre-inspection

1
.
Supplemental
Restraint
System

"Airbag"

Airbagsystem
wiring
harness
is
routed
near
the
ABS

sensor,
ABS
control
module
and
hydraulic
control
unit
.

CAUTION
:

All
Airbag
system
wiring
harness
and
connectors
are

colored
yellow
.
Do
not
use
electrical
test
equipment
on

these
circuit
.

e
Be
careful
not
to
damage
Airbag
system
wiring
har-

ness
when
servicing
the
ABS
sensor,
ABS
control
mod-

ule
and
hydraulic
control
unit
.

2
.
Pre-inspection
Before
performing
diagnostics,
check
the
following
items

which
might
affect
ABS
problems
:

A
:
MECHANICAL
INSPECTION

1
.
POWER
SUPPLY

1)
Measure
battery
voltage
and
specific
gravity
of
electro-

lyte
.

Standard
voltage
:
12
V,
or
more

Specific
gravity
:
Above
1
.260

2)
Check
the
condition
of
the
main
and
other
fuses,
and

harnesses
and
connectors
.
Also
check
for
proper
ground-

ing
.

2
.
BRAKE
FLUID

1)
Check
brake
fluidlevel
.

2)
Check
brake
fluid
leakage
.

3
.
BRAKEDRAG

Check
brake
drag
.
<
Ref
.
to
4-4
[K100].*1
>

4
.
BRAKE
PADAND
ROTOR

Check
brake
padand
rotor
.
<
Ref
.
to
4-4
[K100].*1
>

5
.
TIRE
SPECIFICATIONS,
TIRE
WEARAND
AIR

PRESSURE

Check
tire
specifications,
tire
wear
and
air
pressure
.
<
Ref
.

to
4-2
[S1
A1
],
[S1
A2]
.*1
>

2

4-4d
R7ao1
BRAKES
[ABS
5
.3i
TYPE]

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

7
.
Diagnostics
Chart
for
ABS
Warning

Light
Circuit
and
Diagnosis
Circuit

Failure

A
:
ABS
WARNING
LIGHT
DOES
NOT
COME

ON
.

DIAGNOSIS
:

e
ABS
warning
light
circuit
is
open
or
shorted
.

TROUBLE
SYMPTOM
:

e
When
ignition
switch
is
turned
ON
(engine
OFF),
ABS

warning
light
does
not
come
on
.

WIRING
DIAGRAM
:

Fuse

No
.
12

Fuse

F49
f2
B100

ABS
control
module
and
hydraulic
control
unit

c
:
i14
No
.15

L
ABS

Combination
meter

881
0
Diagnosis
°
E
connector

Diagnosis
terminal

IGNsw
SBF-4
FL1.25B

Fuse
SBF-3

No
.19

882
8100

01
11
12
11
1
1
ID
M
131415161

i2
1
4
10
11
1
13141
1

i14

1
11
11

f49

123456789101112131415
16171819
20
2122
23
24252627
1
28
1
29
1
30
13
11

rw
am

84M1230

18

4-4d
[r7aa1
BRAKES
[ABS
5
.31
TYPE]

7
.
DiagnosticsChart
for
ABS
Warning
Light
Circuit
and
Diagnosis
Circuit
Failure

2345
67890
B1~
1
11
1
12
1
13
1
14
1516
171819
1:
)

D

84M1273A

7A4
CHECK
BATTERY

NG
LIGHT
HARN

SSORT
OF
ABS
WARN-

1)
Turn
ignition
switch
to
ON
.

2)
Measure
voltage
between
connector
(B100)
and
chas-

sis
ground
.

Connector
&
terminal

(8100)
No
.
9
(+)
-
Chassis
ground
(
)
:

CHECK
:
is
voltage
less
than3
V?

YES
:
Go
to
step
7A5
.

No
:
Repair
warning
light
harness
.

7A5
CHECK
WIRING
HARNESS
.

1)
Turn
ignition
switch
to
OFF
.

2)
Install
ABS
warning
light
bulb
from
combination
meter
.

3)
Install
combination
meter
.

4)
Turn
ignition
switch
to
ON
.

5)
Measure
voltage
between
connector
(B100)
and
chas-

sis
ground
.

Connector
&
terminal

(B100)
No
.
9
(+)
-
Chassis
ground
(-)
:

CHECK
:
Is
voltage
between
10
V
and
15
V?

,rES
:
Go
to
step
7A6
.

No
:
Repair
wiring
harness
.

20

BRAKES
[ABS
5
.31
TYPE]
[r7Aal
4-4d

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

F49

1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
9h0
1
11
1
12
1
13
1
1
411
516
1
17
1
18
1
19
1
20
2
1
23
24
2526
728293031

D

-_
B4M
1243A

7A6
CHECK
BATTERY

NG
LIGHT
HARN

SSORT
OF
ABS
WARN-

1)
Turn
ignition
switch
to
OFF
.

2)
Measure
voltage
between
connector
(F2)
and
chassis

ground
.

Connector
&
terminal

(F2)
No
.
9
(+)
-
Chassis
ground
(
)
:

CHECK
:
Is
thevoltage
less
than3
V?

,rES
:
Go
to
step
7A7
.

No
:
Repair
wiring
harness
.

7A7

CHECK
BATTERY

(
NG
LIGHT
HARNESS
.

SHO
RT
OF
ABSWARN-

1)
Turn
ignition
switch
to
ON
.

2)
Measure
voltage
between
connector
(F2)
and
chassis

ground
.

Connector
&
terminal

(F2)
No
.
9
(+)
-
Chassis
ground
(
)
:

CHECK
:
Is
voltage
less
than3
V?

vES
:
Go
to
step
7A8
.

No
:
Repair
wiring
harness
.

7A8
CHECK
GROUND
CIRCUIT
OF
ABSCM&H/U
.

Measure
resistance
between
ABSCM&H/U
and
chassis

ground
.

Connector
&
terminal

(F49)
No
.
23
-
GND
:

CHECK
:
Is
theresistance
less
than0
.5
92?

,rES
:
Go
to
step
7A9
.

No
:
Repair
ABSCM&H/U
ground
harness
.

21

4-4d
[r7A9]
BRAKES
[ABS
5
.3i
TYPE]

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

7A9
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
11?

YES
:
Go
to
step
7A10
.

No
:
Repair
harness/connector
.

7A10
I
CHECK
POOR
CONTACT
IN
CONNECTORS
.

Turn
ignition
switchto
OFF
.

CHECK
:
Is
there
poor
contact
in
connectors
between

combination
meter
and
ABSCM&HIU?
<
Ref
.

to
FOREWORD
[T3C1]
.*10
>

ves
:
Repair
connector
.

No
:
Replace
ABSCM&HIU
.

22

4-4d
[T7BO1
BRAKES
[ABS
5
.31
TYPE]

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

B
:
ABS
WARNING
LIGHT
DOES
NOT
GO
OFF
.

DIAGNOSIS
:

e
ABS
warning
light
circuit
is
open
or
shorted
.

TROUBLE
SYMPTOM
:

e
When
starting
the
engine
and
while
ABS
warning
light

is
kept
ON
.

WIRING
DIAGRAM
:

F49
F2
8100

ABS
control
module
and
hydraulic
control
unit
Fuse

No
.18

Fuse

C
:0
No
.
5

837
i2
ABS

Combination
meter

O
Diagnosis
°
E
connector
gg~

Diagnosis
terminal

IGNsw
SBF-4
FL1.25B

w

Q
m

Fuse
SBF-3

No
.
19

882
8100

1
11
1213141
161
11
10

i1

1
11213141
9
10
11134111181920212

0

1
10111
1

F49

12345678910111131415
16171819
20
2122
2324
25
2627
1
28
1
29
1
30
1
31
1

B4M1230

24