1996 SUBARU LEGACY Chassis

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T5H11
5-5b

5
.
Diagnostics
Chart
with
Trouble
Code

H
:
TROUBLE
CODE
31

DIAGNOSIS
:

"
Airbag
control
module
is
faulty
.

"
Airbag
main
harness
circuit
is
open
.

"
Fuse
No
.
16
is
blown
.

"
Body
harness
circuit
is
open
.

1
1
.
Airbag
control
module
inspection

1
2
.
Airbag
main
harness
Inspection

1
3
.
Fuse
No
.
16
inspection

CAUTION
:

Before
performing
diagnostics
on
airbag
system,
turn

ignition
switch
"OFF",
disconnect
battery
ground
cable

and
then
wait
at
least
20
seconds
.

After
20
seconds
elapse,
remove
instrument
panel
lower
cover,
and
disconnect
(AB3)
and
(AB8),
(AB9)
and

(AB10)
.

1
.
AIRBAG
CONTROL
MODULE
INSPECTION

1)
Disconnect
connector
(AB6)
fromairbag
control
mod-

ule
<
Ref
.
to
5-5
[W6A0].*2
>,
and
connect
it
to
test
har-

ness
B2
connector
(8B)
.

2)
Connect
battery
ground
cable
and
turn
ignition
switch

"ON"
(engine
off)
.

3)
Measure
voltage
across
connector
(5B)
terminal
and

chassis
ground
.

CHECK
:
Connector
&
terminal

(5B)
No
.
5
(+)
-
Chassis
ground
(
)
:

Is
voltage
more
than10
V?

Replace
airbag
control
module
.

No
:
Go
to
step
2
.

25

5-5b
[T5H2]
SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)

5
.
Diagnostics
Chart
with
Trouble
Code

2
.
AIRBAG
MAIN
HARNESS
INSPECTION

B31
AB1

2A
5A

I

rrrrr

e
1
214s6'
9
1
10
1
11
1
12
1314IS18
17
18

B5M01198

1)
Go
to
step
2)
below
after
performing
diagnostics
on

airbag
system
asher
diagnosis
procedure
under
"1
.
AIR-

BAG
CONTROLMODULE
INSPECTION"
previouslyout-

lined
.

2)
Turn
ignition
switch
"OFF",
disconnect
battery
ground

cable
and
then
wait
at
least
20
seconds
.

3)
Disconnect
connector
(AB1)from
body
harness
con-

nector
(B31)
at
front
lower
pillar
(driver
side),
and
connect

connector
(AB1)
to
test
harness
A
connector
(2A)
.

4)
Measure
resistance
between
test
harness
A
connector

(5A)
and
test
harness
B2
connector
(5B)
terminals
.

CHECK
:
Connector
&
terminal

,mss
:
Go
to
step
3
.

No
:
Replace
airbag
main
harness
.

(5A)
No
.
9
-
(58)
No
.
5
:

Is
resistance
less
than
10
S2?

ves
:
Go
tostep
5)
.

No
:
Replace
airbag
main
harness
.

5)
Measure
resistance
between
each
terminalof
connec-

tors
(5A)
and
(5B)
and
chassis
ground
.

CHECK
:
Connector
&
terminal

(5A)
No
.
9
(+)
-
Chassis
ground
(
)
:

,rES
:
Go
to
next

No
:
Replace
airbag
main
harness
.

CHECK
:
Connector
&
terminal

(5B)
No
.
5
(+)
-
Chassis
ground
(
)
:

Is
resistance
more
than10
K2?

3
.
FUSENo
.
16
INSPECTION

Make
sure
ignition
switch
is
turned
"OFF",
then
remove
and
visually
check
fuse
No
.
16
.

CHECK
:
Is
fuse
No
.
16
blown?

,res
:
Replace
fuse
No
.
16
.
If
fuse
No
.
16
blows
again,

repair
body
harness
.

No
:
Repair
body
harness
.

26

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

5
.
Diagnostics
Chart
with
Trouble
Code

J
:
TROUBLE
CODE
34

DIAGNOSIS
:

9
Airbag
main
harness
circuit
(Passenger)
is
shorted
to

power
supply
.

*Airbag
module
harness
(Passenger)
is
shorted
to
power

supply
.

9
Airbag
control
module
is
faulty
.

r
1
.
Airbag
main
harness
inspection
l

CAUTION
:

Before
performing
diagnostics
on
airbag
system,
turn

ignition
switch
"OFF",
disconnect
battery
ground
termi-

nal
and
thenwait
at
least
20
seconds
.

After
20
seconds
elapse,
remove
instrumentpanel
lower
cover,
and
disconnect
(AB3)
and
(AB8),
(AB9)
and

(AB10)
.

1
.
AIRBAG
MAIN
HARNESS
INSPECTION

1)
Disconnect
connector
(AB6)
from
airbag
control
mod-

ule
<
Ref
.
to
5-5
[W6A0].*2
>,
and
connect
it
totest
har-

ness
132
connector
(8B)
.

2)
Connect
battery
ground
cable
and
turn
ignition
switch

"ON"
(engine
off)
.

3)
Measure
voltage
across
each
test
harness
132
connec-

tor
(5B)
terminal
and
chassis
ground
.

CHECK
:
Connector
&
terminal

(5B)
No
.
6
(+)
-
Chassis
ground
(
)
:

Is
voltage
less
than
1
V?

ves
:
Go
to
next
CHECK

No
:
Replace
airbag
main
harness
.

CHECK
;
Connector
&
terminal

(5B)
No
.
7
(+)
-
Chassis
ground
(
)
:

Is
voltage
less
than
1
V?

,rES
:
Replace
airbag
control
module
.

No
:
Replace
airbag
main
harness
.

28

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T5K1]
5-Sb

5
.
Diagnostics
Chart
with
Trouble
Code

K
:
TROUBLE
CODE
41

DIAGNOSIS
:

Airbag
main
harness
circuit
(Driver)
is
shorted
to

ground
.

"
Airbag
module
harness
(Driver)
is
shorted
to
ground
.

"
Roll
connector
circuit
is
shorted
to
ground
.

"
Airbag
control
module
is
faulty
.

1.
Airbag
main
harness
Inspection

CAUTION
:

Before
performing
diagnostics
on
airbag
system,
turn

ignition
switch
"OFF",
disconnect
battery
ground
cable

and
then
wait
at
least
20
seconds
.

After
20
seconds
elapse,
remove
instrument
panel

lower
cover,
and
disconnect(AB3)
and
(AB8),
(AB9)
and

(AB10)
.

12
3
4
5
67
89
1
10
1
11
1
12
1
13
1
14
1
15
1
16
1
17
1
18
1
19
1
2
01

8B

i

GSM0559
I

1
.
AIRBAG
MAIN
HARNESS
INSPECTION

1)
Disconnect
connector
(AB6)
from
airbag
control
mod-

ule
<
Ref
.
to
5-5
[W6A0].*2
>,
and
connect
it
to
test
har-

ness
B2
connector
(8B)
.

2)
Measure
resistance
between
test
harness
132
connec-

tor
(5B)
terminals
and
chassis
ground
.

CHECK
:
Connector
&
terminal

(58)
No
.
1
(+)
-
Chassis
ground
(
)
:

is
resistance
more
than
200
S2?

Go
to
next
CHECK

No
:
Replace
airbag
main
harness
.

CHECK
:
Connector&
terminal

(5B)
No
.
14
(+)
-
Chassis
ground
(
)
:

Is
resistance
more
than
200
S2?

0
:
Replace
airbag
control
module
.

No
:
Replace
airbag
main
harness
.

29

5-5b
[750]
SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)

5
.
Diagnostics
Chart
with
Trouble
Code

L
:
TROUBLE
CODE
42

DIAGNOSIS
:

*
Airbag
main
harness
circuit
(Passenger)
is
shorted
to

ground
.

*
Airbag
module
harness
circuit
(Passenger)
is
shorted
to

ground
.

e
Airbag
control
module
is
faulty
.

1
.
Airbag
main
harness
Inspection

CAUTION
:

Before
performing
diagnostics
on
airbag
system,
turn

ignition
switch
"OFF",
disconnect
battery
ground
cable

and
then
wait
at
least
20
seconds
.

After
20
seconds
elapse,
remove
instrument
panel
lower
cover,
and
disconnect
(AB3)
and
(AB8),
(AB9)
and

(AB10)
.

1
.
AIRBAG
MAIN
HARNESS
INSPECTION

1)
Disconnect
connector
(AB6)
from
airbag
control
mod-

ule
<
Ref
.
to
5-5
[W6A0]
.*2>,
and
connect
it
to
test
har-
ness
132
connector
(8B)
.

2)
Measure
resistance
between
test
harness
132
connec-

tor
(5B)
terminals
and
chassis
ground
.

CHECK
;
Connector
&
terminal

(5B)
No
.
6
(+)
-
Chassis
ground
(
)
:

Is
resistance
more
than
200
S2?

,mss
:
Go
to
next
CHECK

No
:
Replace
airbag
main
harness
.

CHECK
:
Connector
&
terminal

(5B)
No
.
7
(+)
-
Chassis
ground
(-)
:

Is
resistance
more
than
200
0?

YES
:
Replace
airbag
control
module
.

No
:
Replace
airbag
main
harness
.

30

SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)
[T5M1]
5-5b

5
.
Diagnostics
Chart
with
Trouble
Code

1.
Airbag
main
harness
Inspection

M
:
TROUBLE
CODE
43

DIAGNOSIS
:

*
Airbag
main
harness
circuit
(Driver)
is
shorted
to
power

supply
.

Airbag
module
harness
(Driver)
is
shorted
to
power

supply
.

"
Roll
connector
is
shorted
to
power
supply
.

"
Airbag
control
module
is
faulty
.

CAUTION
:

Before
performing
diagnostics
on
airbag
system,
turn

ignition
switch
"OFF",
disconnect
battery
ground
termi-

nal
and
thenwait
at
least
20
seconds
.

After
20
seconds
elapse,
remove
instrument
panel
lower
cover,
and
disconnect
(AB3)
and
(AB8),
(AB9)
and

(AB10)
.

1
.
AIRBAG
MAIN
HARNESS
INSPECTION

1)
Disconnect
connector
(AB6)from
airbag
control
mod-

ule
<
Ref
.
to
5-5
[W6A0]
.*2>,
and
connect
it
to
test
har-

ness
132
connector
(8B)
.

2)
Connect
battery
ground
cable
and
turn
ignition
switch

"ON"
(engine
off)
.

3)
Measure
voltage
across
each
test
harness
132
connec-

tor
(5B)terminal
and
chassis
ground
.

CHECK
:
Connector
&
terminal

(5B)
No
.
1
(+)
-
Chassis
ground
(
)
:

Is
voltage
less
than
1
V?

YES
.
G
o
tonext
CHECK

No
:
Replace
airbag
main
harness
.

CHECK
:
Connector&
terminal

(58)
No
.
14
(+)
-
Chassis
ground
(-)
:

Is
voltage
less
than
1
V?

vES
:
Replace
airbag
control
module
.

No
:
Replace
airbag
main
harness
.

31

5-5b
[T5N3]
SUPPLEMENTAL
RESTRAINT
SYSTEM
(ELECTRIC
SENSOR
TYPE)

5
.
Diagnostics
Ch
art
with
Trouble
Code

B31

1A

-
;
1F°9'
--------

5A
.

~fffl

1
1
1
2
1
3
1
45
6
78
\
9
1017
12
131415161718
e

BSM0123B

i

12
1
3
1
4
5
6789
(011121314151617181920

GSM0559I

3
.
GROUNDING
CIRCUIT
INSPECTION

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

cable
and
then
wait
atleast
20
seconds
.
Disconnect
con-

nector
(AB1)
from
body
harness
connector
(B31),
and

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

Measure
resistance
between
connector
(5A)
terminal
and

chassis
ground
.

CHECK
:
Connector&
terminal

(5A)
No
.
17
(+)
-
Chassis
ground
(
)
:

Is
resistance
less
than
10
S2?

,mss
:
Go
to
next
CHECK

No
:
Repair
body
grounding
circuit
.

CHECK
:
Connector&
terminal

(5A)
No
.
18
(+)
-
Chassis
ground
(
)
:

Is
resistance
less
than
10
S2?

Go
to
step
2)
.

No
:
Repair
body
grounding
circuit
.

2)
Connect
connectors
(AB1)
and
(B31)
.
Disconnect
con-

nector
(AB6)from
airbag
control
module
<
Ref
.
to
5-5

[W6A0]
.*2>,
and
connect
it
to
test
harness
B2
connec-

tor
(8B)
.

3)
Measure
resistance
between
each
test
harness
B2
con-

nector
(5B)
terminal
and
chassis
ground
.

CHECK
;
Connector
&
terminal

,rES
:
Replace
airbag
control
module
.

No
:
Replace
airbag
main
harness
.

(5B)
No
.
11
(+)
-
Chassis
ground
(
)
:

Is
resistance
less
than
10
S2?

YES
.
G
o
to
next
CHECK

No
:
Replace
airbag
main
harness
.

CHECK
;
Connector&
terminal

(58)
No
.
12
(+)
-
Chassis
ground
(
)
:

Is
resistance
less
than
10
S2?

34

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[rsi2]
2-7
8
.
Diagnostics
for
Engine
Starting
Failure

WIRING
DIAGRAM
:

Fuel
pump

M

R58
S
.M
.J
.

R67R46
R1
897

E

B84

ECM

Fuel
pump
relay

0

846

SBF-2

No
.16
~b---

862F45

884

9
10
1112
13141516
R58
R61B46

3132
333435363738
39
40
4142
43
44585960
6162
6364
6566
6768
6910
1
2
3
~1
]
M34
1
84
1
8
51
86
1
871
88
1
89
1
90
1
91
1
92
1
93
1
94
1
95
1
96
1
4
56~J

82M
1014

PUMpK

OPERATING
SOUND
OFFUEL
811
CHEC

R58

OBD0132A

Make
sure
that
fuel
pump
isin
operation
for
two
seconds

when
turning
ignition
switch
to
ON
.

CHECK
:
Does
fuel
pump
produce
operating
sound?

NOTE
:

Fuel
pump
operation
check
can
also
beexecuted
using

Subaru
Select
Monitor
(Function
mode
:
FD01)
.

For
the
procedure,
referto
"COMPULSORY
VALVE
OPER-
ATION
CHECK
MODE"
2-7
[T3F0]*4
.

,res
:
Check
fuel
injector
circuit
.
<
Ref
.
to
2-7

[T10Q0].*2
>

No
:
Go
to
step
812
.
1
812
CHECK
GROUND
CIRCUIT
OF
FUEL
PUMP
.

1)
Turn
ignition
switch
to
OFF
.

2)
Disconnect
connector
from
fuel
pump
.

3)
Measure
resistance
of
harness
connector
between
fuel

pump
and
chassis
ground
.

CHECK
:
Connector
&
terminal

(R58)
No
.
4
-
Chassis
ground
:

Is
the
resistance
less
than
5
S2?

5