1996 SUBARU LEGACY engine

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T5N2]
5-5b

5
.
Diagnostics
Chart
with
Trouble
Code

B31
1A

5A
r
.~
..

,fl((
i

1
23
45B
7
89
101
.112131415
761718
I

B5M0123B

i

1
2
31
5
8789
[
lo
l
l1
1
12
1
13
1
14
1
15
1
16
1
17
1
.
t18
20

i

G5M0559
I

2
.
INSPECTION
OF
BODY
HARNESS,
CONNECTOR

AND
AIRBAG
WARNING
LIGHT

1)
Turn
ignition
switch
"OFF"
and
connect
body
harness

connector
(B31)
to
test
connector
A
connector
(1A)
.

2)
Connect
battery
ground
cable
and
turn
ignition
switch

"ON",
(engine
off)
and
connect
connectors
(3A)
and
(4A)
.

CHECK
;
Does
the
airbag
warning
light
come
off?

,rES
:
Go
tostep
3)
.

Go
tonext
~
.

~K
:
Is
there
anything
unusual
to
body
harness?

Repair
body
harness
.

Replace
airbag
warning
light
module
1~
.

NOTE
:

After
problem
has
been
eliminated,
disconnect
connectors

(3A)
and
(4A)
.

3)
Turn
ignition
switch
"OFF",
disconnect
battery
ground

cable
and
then
wait
at
least
20
seconds,
and
re-connect

connectors
(AB1)
and
(B31)
.

4)
Remove
instrument
panel
lower
cover
and
disconnect

(AB3)
with
(AB8),
then
disconnect
connector
(AB6)from

airbag
control
module,
<
Ref
.
to
5-5
[W6A0]
.*2
>
and

connect
it
to
test
harness
132
connector
(8B)
.

5)
Connect
battery
ground
cable
and
turn
ignition
switch

"ON,"
(engine
off)
and
connect
connectors
(6B)
and
(7B)
.

CHECK
:
Does
the
airbag
warning
light
come
on?

0
:
Go
to
step
3
.

No
:
Replace
airbag
main
harness
.

NOTE
:

After
problem
has
been
eliminated,
disconnect
connectors

(6B)
and
(7B)
.

33

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T502]
5-5b

5
.
Diagnostics
Chart
with
Trouble
Code

O
:
AIRBAG
WARNING
LIGHT
REMAINSOFF
.

DIAGNOSIS
:

"
Fuse
No
.
15
is
blown
.

"
Body
harness
circuit
is
open
.

"Airbag
warning
light
is
faulty
.

"
Airbag
main
harness
is
faulty
.

"Airbag
control
module
is
faulty
.

1
1
.
Fuse
No
.
15inspection

1
2
.
Body
harness
inspection

3
.
Airbag
warning
light
module
(in
combination

meter)
inspection

1
4
.
Airbag
main
harness
Inspection

CAUTION
:

Before
performing
diagnostics
on
airbag
system,
turn

ignition
switch
"OFF",
disconnect
battery
ground

terminal,
and
then
wait
at
least
20
seconds
.

1
.
FUSE
No
.
15
INSPECTION

Remove
and
visually
check
fuse
No
.
15
.

CHECK
;
Is
fuse
No
.
15
blown?

(]
ES
:
Replace
fuse
No
.
15
.

If
fuse
No
.
15
blows
again,
go
to
step
2
.

No
:
Go
to
step
2
.

2
.
BODY
HARNESS
INSPECTION

Turn
ignition
switch
"ON"
(engine
off)
to
make
sure
other

warning
lights
(in
combination
meter)
illuminate
.

CHECK
:
Do
all
the
warning
lights
(in
combination

meter)
except
airbag
warning
light
come
on?

vES
:
Go
to
step
3
.

No
:
Repair
body
harness
.

35

5-5b
(T503]
SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)

5
.
Diagnostics
Chart
with
Trouble
Code

B31

AB1

r
`,~~,
;
r
:cr

B5M01228

0)0
0

J
J

AB

B8

.
.o/

G5M0312

3
.
AIRBAG
WARNING
LIGHT
MODULE
(IN

COMBINATION
METER)
INSPECTION

1)
Turn
ignition
switch
"OFF",
disconnect
battery
ground

cable
and
then
wait
at
least
20
seconds
.

2)
Disconnect
body
harness
connector
(B31)
fromcon-

nector
(AB1),

3)
Connect
battery
ground
cable
and
turn
ignition
switch

"ON"
(engine
off)
to
make
sure
airbag
warning
light
illu-

minates
.

CHECK
:
Does
the
airbag
warning
light
come
on?

vss
:
Go
to
step
4
.

Replace
airbag
warning
light
module

4
.
AIRBAG
MAIN
HARNESS
INSPECTION

1)
Turn
ignition
switch
"OFF",
disconnect
battery
ground

cable
and
then
wait
atleast
20
seconds
.

2)
Connect
body
harness
connector
(B31)
and
connector

(AB1)
.

3)
Disconnect
connectors
(AB3)
and
(AB8)
below
steering

column
.
<
Ref
.
to
5-5[M2-6]
.*1
>

4)
Disconnect
connector
(AB6)
from
airbag
control
mod-

ule
.
<
Ref
.
to
5-5
[W6A0]
.*2
>

5)
Connect
battery
ground
cable
and
turn
ignition
switch

"ON"
to
make
sure
airbag
warning
light
illuminates
.

CHECK
:
Does
the
airbag
warning
light
come
on?

Replace
airbag
control
module
.

No
:
Replace
airbag
main
harness
.

36

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T5G17]
5-5b

5
.
Diagnostics
Chart
with
Trouble
Code

v
0
v

GSM0461

5
.
FUSENo
.
16,
AIRBAG
MAINHARNESS,
BODY

HARNESS
VIBRATION
INSPECTION

Conduct
vibration
inspection
on
fuse
No
.
16,
airbag
main

harness
and
body
harness
.

CAUTION
:

Do
not
shake
or
vibrate
airbag
control
module
.

CHECK
:
Do
fuse
No
.
16,
airbag
main
harness
or
body

harness
malfunction
again
when
shaking?

Replace
faulty
airbag
component
parts
.

No
:
Go
to
step
6
.

NOTE
:

Gently
shake
each
part
.

6
.
SHOWERING
INSPECTION
TO
BODY

Spray
water
on
vehicle
body
.

CAUTION
:

Do
not
directly
spraywater
on
each
part
.

CHECK
:
Does
wafer
leak
into
the
passenger
compart-

ment
when
showering
vehicle?

,res
:
Replace
faulty
airbag
component
parts
.

No
:
Go
to
step
7
.

NOTE
:

If
leaks
are
noted,
check
wiring
harnesses
as
water
may

leak
along
them
and
get
parts
wet
.

7
.
WARNING
LIGHT
ILLUMINATION
CHECK

Turn
ignition
switch
"ON"
(engine
off)
and
observe
airbag

warning
light
.

CHECK
:
Does
the
airbag
warning
light
comes
on
for
8

seconds,then
go
out
and
stay
out?

,rES
:
Clear
memory
.

Go
to
[T4E0]*2
"DIAGNOSTICS
PROCEDURE"
.

43

s-$
[D601]
WIRING
DIAGRAM

6
.
Wiring
Diagram

No
.
Load

MB-2
Powerwindow
circuit
breaker

Engine
control
module

Fuel
pump
relay
MB-3
Main
relay

OBD-II
service
connector

MB-4A/C
relay
holder

MB-6
Headlight
LH

Diode
(Lighting)

Lighting
switch

Combination
meter
M
B_$

Headlight
RH

Combination
meter

Door
lock
timer

MB-9
Luggage
room
light

Radio

Room
light

MB-10
A/C
relay
holder

ALT-1
Combination
meter

IG
A/C
relay
holder

Cruise
control
module

ST
Engine
control
module

Inhibitor
switch

FB-2
Diode
(A/C)

Sub
fan
motor
FB-3
Sub
fan
relay-2

Engine
control
module

Fuel
pump
relay
FB-4
Ignition
coil

Transmission
control
module

Side
marker
light
LH
FB-6
Side
marker
light
RH

FB-7Door
lock
timer

FB-9Hazard
switch

AT
shift
lock
control
module
FB-10
Key
warning
switch

Power
antenna

FB-11
Radio

FB-12
Cigarette
lighter

FB-13
Remote
control
rearview
mirrorswitch

AT
shift
lock
control
module

Combination
switch
Front
washer
motor
FB-14
Front
wipermotor

Rear
washer
motor

Rear
wipermotor

Rear
wiper
relay

FB-15Transmission
control
module

Na
Load

Rear
defogger

FB-16
Rear
defogger
condenser

Reardefogger
switch

FB-17
Rear
defogger
switch

FB-18
AT
shift
lock
control
module

Inhibitor
switch

FB-19
Hazard
switch

Combination
meter
FB-20
Mode
control
panel
FB-21
Combination
meter
(Airbag)

Blower
motor
relay

Check
connector

FB-22
FRESH/RECIRC
actuator

Mode
actuator

Powerwindow
relay

Seat
belt
timer

FB-23
Airbag
.
control
module

FB-24
Airbag
control
module

FB-25
Lighting
switch

FB-26
Parking
switch

FB-27
Parking
switch

FB-28
Illumination
light

FB-29
Illumination
light

FB-30
Stop
light
switch

Stop
&
brake
switch

FB-31
Horn
relay

FB-32
Blower
motor
relay

FB-33
Parking
switch

License
plate
light
LH

License
plate
light
RH

FB-34
Rear
combination
light
LH

Rear
combination
light
RH

Rear
finisher
light
LH

Rear
finisher
light
RH

FB-35
Cruise
control
main
switch
Cruise
control
module

6-3
I113so2l
WIRING
DIAGRAM
6
.
Wiring
Diagram

Shield
joint
connector

fl
:
B54

b
:
855

c
:
B56

E3
B22

E2
821

-(California
momodel)

GE
B3

Mass
air
flowsensor

c
:
i14
it
836

Combination
5~f6BR
BRA,
meter

B76

Test
mode
connector

OBD-II
Service
connector

Bl2

-0-~
Inhibitor
switch

(ED
(
JD
Transmission

884

i

46
Engine
control
module

Bl3

LM
Ignitor

879
Chec
k
connector

B78
Data
link
connector

(g
)(Green)
B53
83
(Gray)
(g
)(Gray)
B78
(Ye
I
low)
B54
B
I
eck>

1234
12345
1
2345656789
1
7
1
8
1
9
1
10
11
41
5112

Bl2
(Grey)
Blt
(Gray)

B2l
(L
i
ght
i
l4
B79
(Grey)
B22
(L
1
ght
B55
(B
I
ac
k)B40
(Gray)
gray)
gray)

1234
1234
5678
12345678
1
23
4S67
P1
121-4'i'5
9
1
10
12
1
3
1
4
1
5
1
6
f
7~81
0
1
11
1
12
1
13
1
8
1,
9
0l
2
3t
3141516
9
013112
3456
9101
11121314L51b

B56
(B
I
ac
k)
O(Black)
884
(L
(
ght
b
I
ue)

1
2
345678
9l0
111213141516
171B
19
20
2122
232425
26
27282930
3132
3334353637383940
4142
4344

1
2
34
S678
9
L0
1
2
3
456
7
89
10
45
1
46
1
47
1
484950
51
52
p
354555657
S8
5960
6162
63
1
64656667686970

11121314151617181920L1121314151b1718L9202122
717273747
767778
1
79
1
8
01
81
1
82
1
83
1
84858687888990919293949596

BUR04-02C

WIRING
DIAGRAM
[113so31
6-3

6
.
Wiring
Diagram

3
.
AIR
CONDITIONING
SYSTEM

Air
conditioningrelay
holder
F27

Compressor
Magnet
F24
clutch

Thermal
protector
F48

Pressure
switch
Q47

Engine
control
module

l
a
p

To
Power
Supply
Routing

IG
FB-22
FB-32
FB-20

IG
SW
FUSE
Na
15
FUSE
Na20FUSENa
21
FUSE
Na
15

M

11
Evaporation
thermo-
FRESH/RECIRC
switch
actuator

F48
(B
I
ue)
(j~)
(Gr
ay)

(M
FIT2-1

123
45
6
C1-
F2~
n
R3
[4151617
1
234

(~D(~D(~D
(~~D
(E)

j
F1W2-1
1
2
1
2
1
2
1
2-
-
-
MMMM
F3T
i
0
9
4
1
3
4
34
34
34

A/Crelay
holder(Black)

Mode
actuator

Ref
.
to
Lighting

Blower
motor
Blower
resistor
motor
relay

O
(B
I
ac
k)

Blower
motor

B87
(B
I
ac
k)
O
(B
I
ac
k)
B50880
(B
I
ue)
B91
1
12
1
2
123
34
345

i
ll
(B
I
ac
k)F45
1
l
(B
I
ac
k)
1
234S
I
6
1
7
1
12345
b789
125
6789(0
34
I1121314t516171819202122
1
9
1
10
1
11
1
12
1
13
1
14
1
15
1
t6
111121314t51617t81920~~

BB4
(L
t
ght
b
I
ue)

12U34
U
56
U
78
U
U
9l0
U
Ilt2
U
1314LJ1516
17
1
18
1
19
1
20
1
21
1
22
1
23
1
24
1
25
1
26
1
27
1
28
1
29
1
30
1
31323
3
34
35
3637
38
39
40
4142
43
44454647
1
48
1
49
~
0
1
51
1
52
1
53
1
54
~
5
1
56
1
57
1
M59
1
60
1
61
~
2
1
63
1
64
1
65
1
66
1
67
1
66
1
69
1
7'
7172
73
74
75
76777B7980
81
1
89
1
83
1
84
8
86878889
90
9192
93
94
996

BUR45-02

9

WIRING
DIAGRAM
[D605]
6-3

6
.
Wiring
Diagram

FWD
switch
(AWD)

B9

Data
link
connector

B78

OBD-11
service
connector

840

Droppig
Cruise
resistorcont
rol
modu
le

Check
connector

nP
B79
~
B4
~
B94

0E

o
L
-
-
-
------------------------
-

4
-~
C
-
-------------'---------_
_1'
H
0
U

c0
-
,
F
LO
N

B11
T4
1Ref
.
to
/Engine
F-
r
electrical
system
.

AT
contro
l
--'-'-"----

Veh
i
c
l
e
speed
i(Transmission)
___
.---------
-
--
sensor
1

ATF
temperature
sensor
Linepressuresolenoid

Lock-up
solenoid

AWD
solenoid

Shift
solenoid
1

Shift
solenoid
2

Shift
solenoid
3

a
:
B54

b
:
855

c
:
BSb
R
R
3
Throttleposition

She!
I
d
point
n,
821
E2

sensor

El3
connector
B84
B53
~-
--
-
-

contro
II
89
(BI
ac
k)
1
O
(Gray)
E13
(Brown)
B53B78
(Ye
II
Ow)
m
od
ule
1
~
F172-1
3
4
2
12
123
1234
56789

B54
(B
I
ac
k)
B79
(Grey)
B55
(B
I
ac
k)
B40
(Gray)

123456
789101112
1
23
4
67
8
910
1112
11
13
1
14
r,
1
1
1
2
1
3
1
4
1
5
161
7
1
8
1
910111213141516

12345678

910111213141516

(BD
(Gray)
(B
I
ack)
856894
(B
I
ack)
884
(L
i
ght
b
I
ue)

12
34
56
78
9l0
lll2
1314
1516
11181920212223242526272829303132333435363738394041424344

1
2
J3141
56789
10
4546474849
051
1
52
1
53
1
54
1
5
515
6
1
57'
58
4
60
6162
6364656667b8
b970

13142116
I1
1213141516171814
20
7172
73747576
7178
79
80
182
3
8586B7888990
9192
93
949596

BUR41-02B

11