air condition SUBARU LEGACY 1996 Service User Guide
[x] Cancel search | Manufacturer: SUBARU, Model Year: 1996, Model line: LEGACY, Model: SUBARU LEGACY 1996Pages: 2890, PDF Size: 61.9 MB
Page 233 of 2890
![SUBARU LEGACY 1996 Service User Guide 2-7
[T10BR0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P
044
6
<VCMSOL>
H2M1368
BR
:
DTC
P0446
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
VENT
CONTROL
MALFUNC SUBARU LEGACY 1996 Service User Guide 2-7
[T10BR0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P
044
6
<VCMSOL>
H2M1368
BR
:
DTC
P0446
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
VENT
CONTROL
MALFUNC](/img/17/57433/w960_57433-232.png)
2-7
[T10BR0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P
044
6
H2M1368
BR
:
DTC
P0446
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
VENT
CONTROL
MALFUNCTION
(VCMSOL)
-
DTC
DETECTING
CONDITION
:
Two
consecutive
trips
with
fault
10BR1Check
output
signal
from
ECM
.
10BR2
Check
harnessbetween
ventcontrol
solenoid
valve
and
ECM
connector
.
10BR3Check
harness
between
vent
control
solenoid
valve
and
ECM
connector
.
10BR4
Check
ventcontrol
solenoid
valve
.
10BR5Checkpower
supply
to
vent
control
solenoid
valve
.
CAUTION
:
After
repair
or
replacement
of
faultyparts,
conduct
CLEAR
MEMORY
and
INSPECTION
MODES
.
Ref
.
to
2-7
[T3D0]
and
[T3E0]
.*2
and
*4
>
22
Page 239 of 2890
![SUBARU LEGACY 1996 Service User Guide 2_7
[T10BS0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
DiagnosticsChart
with
Trouble
Code
OBD
(FBI)
P0450
<TNKP>
H2M1372
BS
:
DTC
P0450
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
PRESSURE
SENSOR
MALFUNCTIO SUBARU LEGACY 1996 Service User Guide 2_7
[T10BS0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
DiagnosticsChart
with
Trouble
Code
OBD
(FBI)
P0450
<TNKP>
H2M1372
BS
:
DTC
P0450
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
PRESSURE
SENSOR
MALFUNCTIO](/img/17/57433/w960_57433-238.png)
2_7
[T10BS0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
DiagnosticsChart
with
Trouble
Code
OBD
(FBI)
P0450
H2M1372
BS
:
DTC
P0450
-
EVAPORATIVE
EMISSION
CONTROL
SYSTEM
PRESSURE
SENSOR
MALFUNCTION
(TNKP)
-
DTC
DETECTING
CONDITION
:
9
Immediately
atfault
recognition
10BSi
I
Connect
Subaru
Select
Monitor
or
the
OBD-II
general
scan
toot,
and
read
data
.
Check
inputsignal
for
ECM
.
(Using
10BS2
voltage
meter
and
Subaru
Select
Monitor
.)
10BS3
I
Check
harness
between
ECM
and
fuel
tank
pressure
sensor
connector
.
10BS4
Check
harnessbetween
ECM
and
fuel
tank
pressuresensor
connector
.
CAUTION
:
Afterrepair
or
replacement
of
faultyparts,
conduct
CLEAR
MEMORY
and
INSPECTION
MODES
.
<
Ref
.
to
2-7
[T3D0]
and
[T3E0]
.*2
and
*4
>
28
Page 247 of 2890
![SUBARU LEGACY 1996 Service User Guide 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 User Guide 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 249 of 2890

2_7
[T1oBUO1
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P1400
H2M
1406
BU
:
DTC
P1400
-
FUEL
TANK
PRESSURE
CONTROL
SOLENOID
VALVE
CIRCUIT
MALFUNCTION
(PCVSOL)
-
DTC
DETECTING
CONDITION
:
Two
consecutive
trips
with
fault
10131
.11
Check
output
signal
from
ECM
.
I
10BU2
Check
harness
between
fuel
tank
pressure
control
solenoid
valve
and
ECM
connector
.
1081
.13
Check
harness
between
fuel
tank
pressure
control
solenoid
valve
and
ECM
connector
.
10BU4Check
fuel
tank
pressure
control
solenoid
valve
.
10BU5Checkpower
supply
to
fuel
tank
pressure
control
solenoid
valve
.
CAUTION
:
After
repair
or
replacement
of
faultyparts,
conduct
CLEAR
MEMORY
and
INSPECTION
MODES
.
<
Ref
.
to
2-7
[T3D0]
and
[T3E0]
.*2
and
*4
>
38
Page 254 of 2890

2-7
[T1
oBVO1
ON-BOARD
DIAGNOSTICS
II
SYSTEM
10
.
Diagnostics
Chart
with
Trouble
Code
OBD
(FBI)
P1401
H21
M1410
BV
:
DTC
P1401
-
FUEL
TANK
PRESSURE
CONTROL
SYSTEM
FUNCTION
PROBLEM
(PCV
-
F)
-
DTC
DETECTING
CONDITION
:
Two
consecutive
trips
with
fault
10BV1
Check
fuel
tank
pressure
control
solenoid
valve
.
CAUTION
:
After
repair
or
replacement
of
faulty
parts,
conduct
CLEAR
MEMORY
and
INSPECTION
MODES
.
<
Ref
.
to
2-7
[T3D0]
and
[T3E0]
.*2
and
*4
>
WIRING
DIAGRAM
:
Main
relay
0
0
01F
B47861F45
SBF-2
B84
E
E)E)
ECM
ra
Ti
S
.M
.J
.
891
Rt
R15
R57R68
Fuel
tankpressure
control
solenoid
valve
847
R57R68
10
U
1112
U
131401
16
1
131
1
4041424344
1
2
960
6162
63
64
6
-769
69
70
34
1~,~y(3~
8
.04
687
8
99091929
949
96
6
14j5jti1/LtiJ
B2M1020
44
Page 256 of 2890
![SUBARU LEGACY 1996 Service User Guide 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 User Guide 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 259 of 2890
![SUBARU LEGACY 1996 Service User Guide
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 User Guide
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 265 of 2890
![SUBARU LEGACY 1996 Service User Guide 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 User Guide 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 271 of 2890
![SUBARU LEGACY 1996 Service User Guide
WIRING
DIAGRAM
[D6013]
6-3
6
.
Wiring
Diagram
Data
link
connector
Testmode
878B75
~
B76
YJ
J
~mm
L
J
)
Ref
.
toAir
/
conditioning
system
.
1
Re
f
.to
Radiator
/
fan
system
.
Ref
.
toAT
control SUBARU LEGACY 1996 Service User Guide
WIRING
DIAGRAM
[D6013]
6-3
6
.
Wiring
Diagram
Data
link
connector
Testmode
878B75
~
B76
YJ
J
~mm
L
J
)
Ref
.
toAir
/
conditioning
system
.
1
Re
f
.to
Radiator
/
fan
system
.
Ref
.
toAT
control](/img/17/57433/w960_57433-270.png)
WIRING
DIAGRAM
[D6013]
6-3
6
.
Wiring
Diagram
Data
link
connector
Testmode
878B75
~
B76
YJ
J
~mm
L
J
)
Ref
.
toAir
/
conditioning
system
.
1
Re
f
.to
Radiator
/
fan
system
.
Ref
.
toAT
control
J
system
.
L
F
d'
3L
a0J
mo
O
~VI~
f~
MP
Enginecontro
I
BB4
module
m
>rCD
J3
3
F
.
.
..
--
~
-
S
'
K
J
'
B19
'-
818
v
--
Bl9
rl
CE
r
......
T5
~
..
....
T6
Front
Pressure
sources
oxygen
switchfr
sensor
~
.,
i
o
.,
.
B75
(Green)
2
B78
(Ye
I
low)
12
34
56789
Rear
oxygen
sensor
(California
model)
876
(Green)
2
Rear
oxygensensor
(Other
models)
Bl
(Brown)
12
818
(De
rk
gray)
21
3
OBD-
11
service
connector
N~
BGO
valve
9
(Gray)
T6
Bl9
21
43
840
(Gray)
B84
(L
1
ght
b
I
ue)
1
2
34
56
78
9l0
llt213141516
1
1
1
2
1
3
1
4
1
5
1
6
1
7
8
t718192021222324252627282930
3132
3334
3S
I
36
1
37
1
38
1
39
1
40
1
41
1
44445464748
49
50
5152
535455565758
59
60
6162
1
63
1
64
1
65
1
66
1
67
1
68
1
6
9
70
1
9
1
10
1
11
1
12
1
13
1
14
1
151671
1
72
1
73
1
74
1
75
1
76
1
77
1
78
1
79
1
80
1
81
1
82
1
83
1
84
85
86
87
88
1
89
1
9
0
1,
192
939495
96
BUR10-03B
a
Page 304 of 2890

3. Engine Idle Speed
A: MEASUREMENT
1) Before checking idle speed, check the following:
(1) Ensure that air cleaner element is free from
clogging, ignition timing is correct, spark plugs are in
good condition, and that hoses are connected properly.
(2) Ensure that malfunction indicator light (CHECK
ENGINE light) does not illuminate.
2) Warm-up the engine.
G2M0096
3) Connect Subaru Select Monitor or the OBD-II general
scan tool to data link connector.
CAUTION:
When connecting Subaru Select Monitor, turn ignition
switch to OFF.
4) Start the engine and measure engine speed.
NOTE:
Engine speed is indicated on Subaru Select Monitor by
selecting “MODE F04”.
G2M0097
NOTE:
When using the OBD-II general scan tool, carefully read
its operation manual.
When Subaru Select Monitor is not used, attach the
pickup sensor on tachometer (Secondary pickup type) to
#1 cylinder spark plug cord.
This ignition system provides simultaneous ignition for
#1 and #2 plugs. It must be noted that some tachometers
may register twice that of actual engine speed.
5) Check idle speed when unloaded. (With headlights,
heater fan, rear defroster, radiator fan, air conditioning, etc.
OFF)
Idle speed (No load and gears in neutral (MT) or N or
P (AT) position):
700±100 rpm
6) Check idle speed when loaded. (Turn air conditioning
switch to “ON” and operate compressor for at least one
minute before measurement.)
Idle speed [A/C“ON”, no load and gears in neutral
(MT) or N or P (AT) position]:
850±50 rpm
CAUTION:
Never rotate idle adjusting screw. If idle speed is out
of specifications, refer to General On-board Diagnosis
Table under “2-7 On-Board Diagnostics II System”.
3
2-2
3. Engine Idle Speed