sensor SUBARU LEGACY 1996 Service Repair Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 1996, Model line: LEGACY, Model: SUBARU LEGACY 1996Pages: 2890, PDF Size: 61.9 MB
Page 247 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 2_7
[T10BT0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P0451
<TNKP_F>
H2M
1377
BT
:
DTC
P0451
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
PRESSURE
SENSOR
RANG SUBARU LEGACY 1996 Service Repair Manual 2_7
[T10BT0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P0451
<TNKP_F>
H2M
1377
BT
:
DTC
P0451
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
PRESSURE
SENSOR
RANG](/img/17/57433/w960_57433-246.png)
2_7
[T10BT0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P0451
H2M
1377
BT
:
DTC
P0451
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
PRESSURE
SENSOR
RANGE/PERFORMANCE
PROBLEM
(TNKP
-
F)
-
DTC
DETECTING
CONDITION
:
Two
consecutive
trips
with
fault
I
1OBT1
I
Check
pressure/vacuum
line
.
CAUTION
:
After
repair
or
replacement
of
faultyparts,
conduct
CLEAR
MEMORY
and
INSPECTION
MODES
.
c
Ref
.
to
2-7
[T3D0]
and
[T3E0]
.*2
and
*4
>
WIRING
DIAGRAM
:
S.M
.J
.
B84897
Ri
R47
Fuel
tankpressure
sensor
ECM
L,
884R47
u
u
u
su
1
71
18
1
1
91201211
2
212312412512612712
8
1
2
913011
78
5
go
8T7T
72
444
44
17374759
7
7
123
82M1019
36
Page 248 of 2890

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T1oBT11
2-7
10
.
DiagnosticsChart
with
Trouble
Code
(CHECK
PRESSURE/VACUUM
LINE
.
Is
therea
fault
in
pressurelvacuum
line?
NOTE
:
Check
the
following
items
.
9
Disconnection,
leakage
and
clogging
of
the
vacuum
hoses
and
pipes
between
fuel
tank
pressure
sensor
and
fuel
tank
e
Disconnection,
leakage
and
clogging
of
air
ventilation
hoses
and
pipes
between
fuel
filler
pipe
and
fuel
tank
vES
:
Repair
or
replace
hoses
and
pipes
.
No
:
Replace
fuel
tankpressure
sensor
.
37
Page 256 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 2_7
[T10BW0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P1402
<FLVL>
H2M1411
BW
:
DTC
P1402
-
FUEL
LEVEL
SENSOR
CIRCUIT
MALFUNCTION
(FLVL)
-
DTC
DETECTIN SUBARU LEGACY 1996 Service Repair Manual 2_7
[T10BW0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P1402
<FLVL>
H2M1411
BW
:
DTC
P1402
-
FUEL
LEVEL
SENSOR
CIRCUIT
MALFUNCTION
(FLVL)
-
DTC
DETECTIN](/img/17/57433/w960_57433-255.png)
2_7
[T10BW0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P1402
H2M1411
BW
:
DTC
P1402
-
FUEL
LEVEL
SENSOR
CIRCUIT
MALFUNCTION
(FLVL)
-
DTC
DETECTING
CONDITION
:
Two
consecutive
trips
with
fault
108W1
Checkspeedometer
and
tachometer
operation
in
combination
meter
.
Check
ground
circuit
of
combination
meter
.
108W3
Check
inputsignal
for
ECM
.
(Using
voltage
meter
andSubaru
Select
Monitor
.)
10BW4
Check
fuel
level
sensor
.
10BW5
Check
fuel
sub
level
sensor
.
10BW6
Check
harness
between
fuel
pump
and
fuel
sub
meter
unit
connector
.
10BW7
Check
ground
circuit
of
fuel
level
sensor
.
Check
harnessbetween
ECM
and
fuel
pump
connector
.
10BW9
Check
harnessbetween
ECM,
combination
meter
and
fuel
pump
connector
.
10BW10
Check
harness
between
combination
meter
and
fuel
pump
connector
.
108W11
Check
combination
meter
.
CAUTION
:
After
repair
or
replacement
of
faulty
parts,
conduct
CLEAR
MEMORY
and
INSPECTION
MODES
.
<
Ref
.
to
2-7[T3D0]
and
[T3E0]
.*2
and
*4
>
46
Page 257 of 2890

ON-BOARD
DIAGNOSTICS
II
SYSTEM
[TloBw2i
2-7
10
.
Diagnostics
Chart
with
Trouble
Code
WIRING
DIAGRAM
:
a
:
QD
Combination
b
:
i12
meter
Ignition
c
:
i14
No
.
15W2
switch
SBF-4
FL1
.25B
Fuel
gauge
S
.M
.J
.
O
O
E
E)
El)
Fuel
pumpASSY
R58
Fuel
level
sensor
Junction
A
R15R57
ECM
~
Fuel
sub
meter
unit
Fuel
sub
O
~p
level
sensor
E
822
R57
872
R59
1
5
1
6
1
7
1
8
'
,
O
,'
IyWJJ
LJJJ
LJJ
u
4u
1Ju
i10
i~2
117118119~2
.0121122123V4
.
.
.
.
.
.
(D
1
1
1
141
141EIb1
B2M1021
CHECK
SPEEDOMETER
AND
TACHOMETER
(OPERATION
IN
COMBINATION
METER
.
CHECK
:
Does
speedometer
and
tachometer
operate
normally?
vES
:
Go
to
step
10BW3
.
No
:
Go
to
step
10BW2
.
10BW2
I
CHECK
GROUND
CIRCUIT
OFCOMBINA-
TION
METER
.
1)
Turn
ignition
switch
to
OFF
.
2)
Pull
out
combination
meter
from
instrument
panel
.
<
Ref
.
to
6-2
[W13A1
]
.*1
>
3)
Disconnect
connector
from
combination
meter
.
47
Page 259 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[r1oBwa]
2-7
10
.
Diagnostics
Chart
with
Trouble
Code
FLEVEL
(F45)
2
.50V
H2M1327
3
2
1
5
4
D
S2
B2M0935
I
CHECK
:
Does
the
value
change
less
than
0
.12
Vby
s SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[r1oBwa]
2-7
10
.
Diagnostics
Chart
with
Trouble
Code
FLEVEL
(F45)
2
.50V
H2M1327
3
2
1
5
4
D
S2
B2M0935
I
CHECK
:
Does
the
value
change
less
than
0
.12
Vby
s](/img/17/57433/w960_57433-258.png)
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[r1oBwa]
2-7
10
.
Diagnostics
Chart
with
Trouble
Code
FLEVEL
(F45)
2
.50V
H2M1327
3
2
1
5
4
D
S2
B2M0935
I
CHECK
:
Does
the
value
change
less
than
0
.12
Vby
shaking
harness
and
connector
of
ECM
while
monitoring
the
value
with
Subaru
Select
Monitor?
9
Subaru
Select
Monitor
Designate
mode
using
function
key
.
Function
mode
:
F45
9
F45
:
Fuel
level
sensor
output
signal
is
indicated
.
,rES
:
Repair
poor
contact
in
ECM
connector
.
No
:
Even
if
MIL
lights
up,
the
circuit
has
returned
to
a
normal
condition
at
this
time
.
A
temporary
poor
contact
of
the
connector
may
be
the
cause
.
NOTE
:
In
this
case,
repair
the
following
:
"
Poor
contact
in
fuel
pump
connector
"
Poor
contact
in
combination
meter
connector
"
Poor
contact
in
ECM
connector
"
Poor
contact
in
coupling
connector
(i3,
1322,
B97and
R57)
10BW4
CHECK
FUEL
LEVEL
SENSOR
.
1)
Turn
ignition
switch
to
OFF
.
2)
Remove
fuel
pump
access
hole
lid
located
on
the
right
rear
of
luggage
compartment
floor
.
3)
Disconnect
connector
from
fuel
pump
.
4)
Measure
resistance
between
connector
terminals
of
fuel
pump
.
CHECK
:
Terminals
No
.
3
-
No
.
5
:
Is
the
resistance
less
than
100
S2?
vES
:
Go
to
step
10BW5
.
No
:
Replace
fuel
sending
unit
.
49
Page 260 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 2-7
[T10BW5]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
[2-
1
B2MO9361
R
1
2
34
5
.0
Q
0
.
B2MO937A
I
10BW5
CHECK
FUEL
SUB
LEVEL
SENSOR
.
1)
Remove
service
hole
co SUBARU LEGACY 1996 Service Repair Manual 2-7
[T10BW5]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
[2-
1
B2MO9361
R
1
2
34
5
.0
Q
0
.
B2MO937A
I
10BW5
CHECK
FUEL
SUB
LEVEL
SENSOR
.
1)
Remove
service
hole
co](/img/17/57433/w960_57433-259.png)
2-7
[T10BW5]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
[2-
1
B2MO9361
R
1
2
34
5
.0
Q
0
.
B2MO937A
I
10BW5
CHECK
FUEL
SUB
LEVEL
SENSOR
.
1)
Remove
service
hole
cover
located
on
the
left
rear
of
luggage
compartment
floor
.
2)
Disconnect
connector
from
fuel
sub
meter
unit
.
3)
Measure
resistance
between
connector
terminals
of
fuel
sub
meter
unit
.
CHECK
;
Terminals
No
.
1
-
No
.
2
:
Is
the
resistance
less
than
100
SZ?
,rES
:
Go
to
step
10BW6
.
No
:
Replace
fuel
sub
meter
unit
.
10BW6
CHECK
HARNESS
FUEL
PUMP
I
I
AND
FUEL
SUB
MET
RWUNIT
CONNECTOR
.
Measure
resistance
of
harness
between
fuel
pump
and
fuel
sub
meter
unit
connector
.
CHECK
:
Connector
&
terminal
(R58)
No
.
3
-
(R59)
No
.
2
:
Is
the
resistance
less
than
1
SZ?
0
:
Go
to
step
10BW7
.
No
:
Repair
open
circuit
in
harness
between
fuel
pump
and
fuel
sub
meter
unit
connector
.
50
Page 261 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[TIoBwB]
2-7
10
.
DiagnosticsChart
with
Trouble
Code
R58
B2M0938A
I
R58
B2M0939A
I
10BW7
CHECK
I
SENSOR
.
ROUND
CIRCUIT
OF
FUEL
LEVEL
Measure
resistance
of
harn SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[TIoBwB]
2-7
10
.
DiagnosticsChart
with
Trouble
Code
R58
B2M0938A
I
R58
B2M0939A
I
10BW7
CHECK
I
SENSOR
.
ROUND
CIRCUIT
OF
FUEL
LEVEL
Measure
resistance
of
harn](/img/17/57433/w960_57433-260.png)
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[TIoBwB]
2-7
10
.
DiagnosticsChart
with
Trouble
Code
R58
B2M0938A
I
R58
B2M0939A
I
10BW7
CHECK
I
SENSOR
.
ROUND
CIRCUIT
OF
FUEL
LEVEL
Measure
resistance
of
harness
between
fuel
pump
con-
nector
and
chassis
ground
.
CHECK
:
Connector
&
terminal
(R58)
No
.
5
-
Chassis
ground
:
Is
the
resistance
less
than
5
92?
YES
:
Go
to
step
10BW8
.
No
:
Repair
harness
and
connector
.
NOTE
:
In
this
case,
repair
the
following
:
9
Open
circuit
in
harness
between
fuel
pump
connector
and
chassis
grounding
terminal
"
Poor
contact
in
fuel
pump
connector
"
Poor
contact
in
coupling
connectors
(R57,
B97and
B22)
1OBW8
CHECK
HARNESS
(FUEL
PUMP
CONNECTOREN
ECM
AND
1)
Connect
connector
to
fuel
sub
meter
unit
.
2)
Turn
ignition
switch
to
ON
.
3)
Measure
voltage
between
fuel
pump
connector
and
chassis
ground
.
CHECK
:
Connector
&
terminal
(R58)
No
.
3
(+)
-
Chassis
ground
(
)
:
Is
thevoltage
less
than
1
V?
Repair
harness
and
connector
.
NOTE
:
In
this
case,
repair
the
following
:
*
Open
circuit
in
harness
between
fuel
pump
connector
and
junction
A
on
rear
wiring
harness
"
Poor
contact
in
fuel
sub
meter
unit
connector
"
Poor
contact
in
fuel
pump
connector
"
Poor
contact
in
coupling
connector
(R57)
No
:
Go
to
nextstep
4)
51
Page 265 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 2-7
RyoBxo]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
DiagnosticsChart
with
Trouble
Code
OBD
(
F
B
1)
EXERR22
B2M0947
BX
:
DTC
P0461
-
FUEL
LEVEL
SENSOR
CIRCUIT
RANGE/
PERFORMANCEPROBLEM
(EXERR22)
-
SUBARU LEGACY 1996 Service Repair Manual 2-7
RyoBxo]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
DiagnosticsChart
with
Trouble
Code
OBD
(
F
B
1)
EXERR22
B2M0947
BX
:
DTC
P0461
-
FUEL
LEVEL
SENSOR
CIRCUIT
RANGE/
PERFORMANCEPROBLEM
(EXERR22)
-](/img/17/57433/w960_57433-264.png)
2-7
RyoBxo]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
DiagnosticsChart
with
Trouble
Code
OBD
(
F
B
1)
EXERR22
B2M0947
BX
:
DTC
P0461
-
FUEL
LEVEL
SENSOR
CIRCUIT
RANGE/
PERFORMANCEPROBLEM
(EXERR22)
-
DTC
DETECTING
CONDITION
:
Two
consecutive
trips
with
fault
10BX1
Check
DTC
P1402
on
display
.
CAUTION
:
After
repair
or
replacement
of
faultyparts,
conduct
CLEAR
MEMORY
and
INSPECTION
MODES
.
<
Ref
.
to
2-7
[T3D0]
and
[T3E0]
.*2
and
*4
>
WIRING
DIAGRAM
:
a
:
(a)
b
:
i11
meter
Ignitionc
:
i14
B72
switch
No
.15
~
SBF-4
F
L
1
.25B
rill-fY~
f1
M
~^1-
~
.c
JL
S
.M
.J
.
O
O
897
R1
EW
8T2
1234
4U
i10i12
4
9
10
1
121
141
1
_
.
u
Fuel
pump
ASSY
R58
Fuellevel
r,r,
sensor
Fuel
sub
meter
unit
R59
Fuel.sub
R5787TR59
4W~!JJ
141~1b1
O
R5B
1
1
141~Ib1
82M1021
56
Page 269 of 2890
![SUBARU LEGACY 1996 Service Repair Manual 6-3
[Dso2]
WIRING
DIAGRAM
6
.
Wiring
Diagram
a
:
B54
b
:
BSS
c
:
B56
Transmission
:control
module
853
Shield
joint
connector
Lz7-
E3
822
E2821
-(California
model)
GEB3
Mass
aIr
flow
sensor SUBARU LEGACY 1996 Service Repair Manual 6-3
[Dso2]
WIRING
DIAGRAM
6
.
Wiring
Diagram
a
:
B54
b
:
BSS
c
:
B56
Transmission
:control
module
853
Shield
joint
connector
Lz7-
E3
822
E2821
-(California
model)
GEB3
Mass
aIr
flow
sensor](/img/17/57433/w960_57433-268.png)
6-3
[Dso2]
WIRING
DIAGRAM
6
.
Wiring
Diagram
a
:
B54
b
:
BSS
c
:
B56
Transmission
:control
module
853
Shield
joint
connector
Lz7-
E3
822
E2821
-(California
model)
GEB3
Mass
aIr
flow
sensor
C
:
i14
il
B36
Comb
i
net
i
on
~?+
BRBR
meter
B76
Test
mode
connector
8l2
Inhibitorswitch
(
&
CD
Transmission
4
Vehicle
l
speed
-
sensor
1
B84
19
Engine
control
module
(
ED
~i
gnitor
B79
~
Chec
k
connector
(
9
)
.
eta
link
connector
S
.
M
.
J
.
[Refer
to
foldout
page
.]
OBD-II
B40
B97
R1
R(5R57
~8
Service
R
,EjeRO
FueI
pump
&
connector
1
-fuel
gauge
module
B76
(GreeN
853B3(G
ray)
Bl3
(Gray)
R58
R57878
(Ye
II
ow)
854
B
lack)
nT
456
4567856789
789012
1234
12345
123456
812
(Gray)
Bll
(Gray)
82l
(L
I
ght
i
14879
(Gray)
822
CL
1
ght
855
(B
I
ac
k)840
(Gray)
gray)
gray)
1234
1234
5678
12345678
7
8
1
9
1
10
1
11
1
124
12345678910111213
8
9
0
l
2
3l4
3l41S16
9
OL31123~ISlb
91001213141516
856
(B
I
ac
k)
i1
B
I
ac
k>
BB4
(L
(
ght
b
I
ue)
12
34
U
56
U
78
UU
9t0
U
1112
U
13141J1
516
1718
1
19
1
20
1
21
1
2223242S
I
26
27282930
3132
1
33
1
34
1
35
1
36
3738
39
40
4142
4344
11
1121314
5
6
78
9
l
01
2
3
456
7
8
9
l0
45
1
46
1
47
1
48
1
49
50
5152
1
53
1
54
1
55
1
56
1
57
1
58
5960
6162
636465
66
6768
64
70
11l2
t
3
(4151617
l8l9
20
l1
1
12
1
l3
1
14
1
15
1
16
1
1
7l8l9
20
2122
7172
7374
75767778
74
B0
8182
3
84
B58687888990
9192
9394
95
96
BUR04-03C
4
Page 270 of 2890

6-3
IDso1a1
WIRING
DIAGRAM
6
.
Wiring
Diagram
R57R15
Combination
meter
To
Power
Supply
Routing
FB-20
MB-3FB-4
ST
FB-22Check
Tachometer
connector
FUSE
Na
15
S8F-2
FUSE
Na
16
[G
519
FUSE
Na
l5
P
v
1-0
B79
CD
:
bm
rI
a
m
~
~
F45
Malfunction
Q
D
:
C
indicator
,
.
862
lamp
7
Speedometer
B
i
circuit
I11
*c~
)
Main
relay
E
o
B47
=
Twisted
wire
=2
R
0
F-0
0-
<
71
846
E
Fuel
pump
relay
"
>-
3z
M
~`
LL
J
C
A
V
mJ
(7
Fue
I
pump
&
~
MM~mVPPP
-+
fuel
gauge
module
~
Jv
Fue
I
S
.
M
.
J
.
mJ
B97
3
Engine
pump
[Refer'
to
a
1,
B17
control
B84
module
foldout
page
.],
JJ
Rl
~/
m
L
C
O
R
Fuel
ix
J
temperature
R67R46
sensor
u
Vehicle
=
speed
'
rr
sensor
D
Fuel
gauge
~
r
Inhibitor
switch
n
R59
Fue
I
gauge
C~
sub
module
R59
R67R68
B17
(B
lack)
12
2
12
C
i14
111213141516171819110111112113
((
9
)
5
1
F1F1
Pressure
Vent
controlcontrol
solenoid
solenoi
valvevalve
R69
OD
846
R47
(Green)
U
:Z~)
123
~
34
13
.
ENGINE
ELECTRICAL
SYSTEM
R47
F-1
Fuel
tank
d
pressure
sensor
(Brown)
M
F1F2-1
'
2
3
[3141
456
1516
(L
I
ght
gray)
i
10
(
2D
(L
i
ght
gray)
12345678910111213(41516
B12
R57B12
(Gray)
1234
12
3
5678
45678
9101112
F45
B79
(Gray)
1
23
45
67
89
IO
1t
12
1314
(2i3
(Brown)
23456789
12345
678910
1111213141516171819201
[t
1
1
12
1
13
1
14
1
15
1
16
1
17
1
18
1
19
1
20
21
1
99
1
BUR10-03A
6