1996 SUBARU LEGACY fuel

r
Connecting
to

)r
Area
No
.
Name

C-4
D1
Front
doorcord
RH

ow
C-4
ABi
SRS
(Airbag)
harness

;k
C-4
Turn
&
hazard
module

.k
C-3
i1

C-3
i2
instrument
panel
wiring

un
C-3
i3
harness

e
C-3
i4

y
C-3
OBD-IIservice
connector

C-3
Power
window
circuit
breaker

C-3
Power
window
relay

;k
C-3
Illuminationcontrol
module

C-3
Seat
belt
timer

;n
B-4
Fuel
pump
relay

vn
B-4
Main
relay

;k
B-4
Horn
relay

B-4
Blower
relay

y
C-4
FIB
y
C-4
B-3
Shield
joint
connector
(AT)

.k
B-3

:k
B-3
Transmission
control
module

.k
B-3

:k
B-3
Shift-lock
control
module

B-4F44
i
h
B-4F45
Front
w
ring
arness

.k
B-3
Stop
light
switch

,k
B-3
Stop
8
brake
switch
(Withcruise
control)

:k
8-3
Cruise
control
sub
switch

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

869
11
Black
C-3

B70
9
C-3
Combination
switch

B71
8
8-3

B72
6
Black
C-3
Ignition
switch

B73
2
Black
B-3
Key
lock
solenoid

B74
2
Black
B-3
Key
warning
switch

B75
2
Green
B-2
876
T
d
B76
2
Green
8-2
875
e
connector
est
mo

877
7
B-2
Mode
actuator

B78
9
Yellow
B-2
Data
link
connector

B79
14
Gray
C-2
Check
connector

BBO
4
Blue
B-2
i20
Instrument
panel
wiring
harness

B81
1
x
2
B-2
Diagnosis
terminal
(Ground)

B82
6
Black
B-2
Diagnosisconnector

BB3
4
C-1
Shield
joint
connector
(EIG)

BBQ
96Lightblue
C-2
Engine
control
module

B85
4
Brown
B-3
Diode
(Lighting)

B86
4
Black
B-1
Blower
motor
resistor

887
2
Black
B-1
Blower
motor

888
3
Black
B-1
Evaporatorthermoswitch

B90
2
Green
B-4
R50
Room
light
cord

B91
5
B-1
FRESHIRECIRC
actuator

B92
8
B-1
Door
lock
timer

894
20
Black
B-1
Cruise
control
module

B97
56
B-4
R1
Rear
wiring
harness
(S.M
.J
.)

B101
24
B-1
D11
Front
door
cord
LH

8111
3
Gray
C-4FIB

`
:
Non-colored

4
.
BULKHEAD
WIRING
HARNESS
(IN
COMPARTMENT)

1
I
2
I
3
I
4

A

B

C

D

1
I
2
I
3
I
4

[oeo41

B6M0513A

A

B

C

iJ

23

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

830
24
C-4
D1
Front
door
cord
RH

831
7
Yellow
C-4
A81
SRS
(Airbag)
harness

B32
3
Black
C-4
Turn
&
hazard
module

B36
22
Black
C-3
i1

B37
22
C-3
i2
Instrument
panel
wiring

B38
22
Brown
C-3
i3
harness

B39
20Blue
C-3
i4

B40
16
Gray
C-3
OBD-II
service
connector

B41
2
C-3
Power
window
circuit
breaker

842
4
C-3
Power
window
relay

B43
6
Black
C-3
Illumination
control
module

B44
8
C-3
Seat
belt
timer

B46
4
Green
B-4
Fuel
pump
relay

B47
6
Brown
B-4
Main
relay

B49
3
Black
B-4
Horn
relay

850
4
B-4
Blower
relay

851
11
Gray
C-4
FIB
B52
12
Gray
C-4

853
4
B-3
Shield
joint
connector
(AT)

B54
12
Black
B-3

B55
16
Black
B-3
Transmission
control
module

B56
20
Black
B-3

B57
12
Black
B-3
Shift-lock
control
module

861
B
B-4
F44

B62
20
B-4
F45
Front
wiring
harness

B64
2
Black
B-3
Stop
light
switch

B65
4
Black
B-3
Stop
&
brake
switch(Withcruise
control)

B68
5
i
Black
i
B-3
Cruise
control
sub
switch

Connector
Connecting
to

No
.
Pole
Color
Area
No
.
Name

B69
11
Black
C-3

B70
9
C-3
Combination
switch

B71
8
8-3

B72
6
Black
C-3
Ignition
switch

B73
2
Black
B-3
Key
lock
solenoid

B74
2
Black
B-3
Key
warning
switch

B75
2
Green
B-2
B76

B76
2
Green
&2
B75
Test
mode
connector

B77
7
B-2
Made
actuator

B78
9
Yellow
B-2
Data
link
connector

B79
14
Gray
C-2
Check
connector

B80
4
Blue
B-2
i20
Instrumentpanel
wiring
harness

B81
1
x
2
B-2
Diagnosis
terminal
(Ground)

B82
6
Black
B-2
Diagnosis
connector

B83
4
C-1
Shield
joint
connector
(E!G)

884
96
Light
blue
C-2
Engine
control
module

885
4
Brown
B-3
Diode
(Lighting)

B86
4
Black
B-1
Blower
motor
resistor

887
2
Black
B-1
Blower
motor

B88
3
Black
8-t
Evaporator
thermoswitch

890
2
Green
B-4
R50
Room
light
cord

B91
5B-1
FRESHIRECIRC
actuator

892
8
B-1
Door
lock
timer

B94
20
Black
B-1
Cruise
control
module

B97
56
B-4
R1Rear
wiring
harness
(S
.M
.J
.)

B101
24
B-1
D11
Front
doorcord
LH

13111
3
Gray
C-4
FIB

`
:
Non-colored

4
.
BULKHEAD
WIRING
HARNESS
(IN
COMPARTMENT)

A

B

C

1]

4

23

2-7
[T2A2]
ON-BOARD
DIAGNOSTICS
II
SYSTEM

2
.
Electrical
Components
Location
2
.
Electrical
Components
Location

A
:
ENGINE

2
.
SENSOR

Fuel
level
sensor
~3
Fueltank
pressure
sensor

~2
Fuel
temperature
sensor
~4
Fuel
sub
level
sensor

r
B2M0921A

3

B2M0922A

B2M0946A

2-7
[reioi
ON-BOARD
DIAGNOSTICS
II
SYSTEM

8
.
Diagnostics
for
Engine
Starting
Failure

8
.
Diagnostics
for
Engine
Starting

Failure

I:
FUEL
PUMP
CIRCUIT
(2200
cc
AWD
EXCEPT
TAIWANMODEL)

811
Check
operating
sound
offuel
pump
.

812
Checkground
circuit
offuel
pump
.

I

__
813
Check
power
supply
to
fuel
pump
.
1

814
Check
harness
between
fuel
pump
and

fuel
pump
relay
connector
.

815
[
Check
fuel
pump
relay
.

816
Check
harness
between
ECM
and
fuel

pump
relay
connector
.

CAUTION
:

After
repair
or
replacement
of
faulty
parts,
conduct

CLEAR
MEMORY
and
INSPECTION
MODES
.

Ref
.
to
2-7
[T3D0]
and
[T3E0]
.*2
and
*4
>

4

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

2-7
trsi31
ON-BOARD
DIAGNOSTICS
II
SYSTEM

8
.
Diagnostics
for
Engine
Starting
Failure

R58
Bog

1
23
2
1
L

11

5
643

D

S2

B2M0526A

,rES
:
Go
to
step
813
.

No
:
Repair
open
circuit
in
fuel
pump
ground
circuit
.

813
I
CHECK
POWER
SUPPLY
TOFUEL
PUMP
.

1)
Turn
ignition
switch
to
ON
.

2)
Measure
voltage
of
power
supply
circuit
between
fuel

pump
connector
and
chassis
ground
.

CHECK
:
Connector
&
terminal

(R58)
No
.
1
(+)
-
Chassis
ground
(
)
:

Is
the
voltage
more
than10
V?

,rES
:
Replace
fuel
pump
.

No
:
Go
to
step
814
.

814
CHECK
HARNESS
BETWEEN
FUEL
PUMP

AND
FUEL
PUMP
RELAY
CONNECTOR
.

1)
Turn
ignition
switch
to
OFF
.

2)
Measure
resistance
of
harness
connector
between
fuel

pump
and
fuel
pump
relay
.

CHECK
:
Connector
&
terminal

(R58)
No
.
1
-
(B46)
No
.
4
:

Is
the
resistance
less
than
1
S2?

,rES
:
Go
to
next
CHECK

No
:
Repair
open
circuit
in
harness
between
fuel
pump

and
fuel
pump
relay
connector
.

CHECK
:
Connector
&
terminal

(R58)
No
.
1
-
Chassis
ground
:

Is
the
resistance
more
than
1
MS2?

,res
:
Go
to
step
815
.

No
:
Repair
short
circuit
in
harness
between
fuel
pump

and
fuel
pump
relay
connector
.

6

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[Tsisl
2-7

8
.
Diagnostics
for
Engine
Starting
Failure

815
1
CHECK
FUEL
PUMP
RELAY
.

1)
Disconnectconnectors
from
fuel
pump
relay
and
main

relay
.

2)
Remove
fuel
pump
relay
and
main
relay
with
bracket
.

3)
Connect
battery
to
fuel
pump
relay
connector
terminals

No
.
1
and
No
.
3
.

4)
Measure
resistance
between
connector
terminals
of

fuel
pump
relay
.

CHECK
;
Terminals

No
.
2
-
No
.
4
:

Is
the
resistance
less
than10
92?

YES
:
Go
tostep
816
.

No
:
Replace
fuel
pump
relay
.

816
CHECK
HARNESS
BETWEEN
ECM

FUEL
PUMP
RELAY
CONNECTOR
.

AND

1)
Disconnectconnectors
from
ECM
.

2)
Measure
resistanceof
harness
between
ECM
and
fuel

pump
relay
connector
.

CHECK
:
Connector
&
terminal

(B84)
No
.
32
-
(B46)
No
.
3
:

Is
the
resistance
less
than
1
0?

YES
.
Go
to
next
CHECK

No
:
Repair
harness
between
ECM
and
fuel
pump

relay
connector
.

CHECK
:
Is
there
poor
contact
in
ECM
connector?

vES
:
Repair
poor
contact
in
ECM
connector
.

No
:
Check
fuel
injector
circuit
.
<
Ref
.
to
2-7

[T8F0]
.*2
>

7

2_7
[T10A0]
ON-BOARD
DIAGNOSTICS
11
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code

10
.
Diagnostics
Chart
with
Trouble
Code

A
:
DIAGNOSTIC
TROUBLE
CODE
(DTC)
LIST

DTC

No
.

Abbreviation

(Subaru
select
monitor)Item
Page

P0100
QA
Mass
air
flow
sensor
circuit
malfunction
'1

P0101
QA
-
R
Mass
air
flow
sensor
circuit
range/performance
problem
`1

P0105
P
-
S
Pressure
sensor
circuit
malfunction
*1

P0106
PS
-
R
Pressure
sensor
circuit
range/performance
problem
*1

P0115
TW
Engine
coolant
temperature
sensor
circuit
malfunction
'1

P0120
THV
Throttle
position
sensor
circuit
malfunction
'1

P0121
TH
-
R
Throttle
position
sensor
circuit
range/performance
problem
'1

P0125
TW
-
CL
Insufficient
coolant
temperature
for
closed
loop
fuel
control
'1

P0130
F02
-
V
Front
oxygen
sensor
circuit
malfunction
*1

P0133
F02
-
R
Front
oxygen
sensor
circuit
slowresponse
'1

P0135
F02H
Front
oxygen
sensor
heater
circuit
malfunction
*1

P0136
R02
-
V
Rear
oxygen
sensor
circuit
malfunction
'1

P0139
R02
-
R
Rear
oxygen
sensor
circuit
slowresponse
*1

P0141
R02H
Rear
oxygen
sensor
heater
circuit
malfunction
*1

P0170
FUEL
Fuel
trim
malfunction
'1

P0180
TNKT
Fuel
temperature
sensor
A
circuit
malfunction
10

P0181
TNKT-
FFuel
temperature
sensor
A
circuit
range/performance
problem
16

P0201
INJ1
Fuel
injector
circuit
malfunction
-
#1

P0202
INJ2Fuel
injector
circuit
malfunction
-
#2
"
1
P0203
INJ3Fuel
injector
circuit
malfunction
-
#3

P0204
INJ4Fuel
injector
circuit
malfunction
-
#4

P0301
MIS
-
1
Cylinder
1
misfire
detected

P0302
MIS
-
2Cylinder2
misfire
detected

P0303
MIS
-
3
Cylinder
3
misfire
detected

P0304
MIS
-
4
Cylinder
4
misfire
detected

P0325
KNOCK
Knock
sensor
circuit
malfunction
'1

P0335
CRANK
Crankshaft
position
sensor
circuit
malfunction
'1

P0340
CAM
Camshaft
position
sensor
circuit
malfunction
'1

P0400
EGR
Exhaust
gas
recirculation
flow
malfunction
`1

P0403
EGRSOL
Exhaust
gas
recirculation
circuit
malfunction
'1

P0420
CAT
Catalyst
system
efficiency
below
threshold
'1

P0440
EVAP
Evaporative
emission
control
system
malfunction
18

P0441
CPC
-
F
Evaporative
emission
control
system
incorrect
purge
flow
'1

P0443
CPC
Evaporative
emission
control
system
purge
control
valve
circuit
malfunction
'1

P0446
VCMSOL
Evaporative
emission
control
system
vent
control
malfunction
22

P0450
TNKP
Evaporative
emission
control
system
pressure
sensor
malfunction
28

P0451
TNKP
-
F
Evaporative
emission
control
system
pressure
sensor
range/performance

problem
36

'1
:
.
to
2-7
[T11A0]
.*4>