Page 85 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
2-T
[T11A0]
ON-BOARD
DIAGNOSTICS
11
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
11
.
Diagnostics
Chart
with
Trouble
Code
A
:
DIAGNOSTIC
TROUBLE
CODE
(DTC)
LIST
DTC
No
.
Abbreviation
(Subaru SUBARU LEGACY 1996 Service Repair Manual
2-T
[T11A0]
ON-BOARD
DIAGNOSTICS
11
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
11
.
Diagnostics
Chart
with
Trouble
Code
A
:
DIAGNOSTIC
TROUBLE
CODE
(DTC)
LIST
DTC
No
.
Abbreviation
(Subaru](/manual-img/17/57433/w960_57433-84.png)
2-T
[T11A0]
ON-BOARD
DIAGNOSTICS
11
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
11
.
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
76
P0101
QA
-
RMass
air
flow
sensor
circuit
range/performance
problem
77
P0105
P
-
S
Pressure
sensor
circuit
malfunction
78
P0106
PS
-
R
Pressure
sensor
circuit
range/performance
problem
79
P0115
TW
Engine
coolant
temperature
sensor
circuit
malfunction
80
P0120
THV
Throttleposition
sensor
circuit
malfunction
81
P0121
TH
-
R
Throttleposition
sensor
circuit
range/performance
problem
82
P0125
TW
-
CL
Insufficient
coolant
temperature
for
closed
loop
fuel
control
83
P0130
F02
-
V
Front
oxygen
sensor
circuit
malfunction
84
P0133
F02
-
R
Front
oxygen
sensor
circuit
slowresponse
85
P0135
F02H
Front
oxygen
sensor
heater
circuit
malfunction
86
P0136
R02
-
V
Rear
oxygen
sensor
circuit
malfunction
87
P0139
R02
-
R
Rear
oxygen
sensor
circuit
slowresponse88
P0141
R02H
Rear
oxygen
sensor
heater
circuit
malfunction
89
P0170
FUEL
Fuel
trim
malfunction
90
P0201
INJ1Fuel
injector
circuit
malfunction
-
#1
P0202
INJ2Fuel
injector
circuit
malfunction
-
#2
91
P0203
INJ3Fuel
injector
circuit
malfunction
-
#3
P0204
INJ4Fuel
injector
circuit
malfunction
-
#4
P0301
MIS
-
1
Cylinder
1
misfire
detected
P0302
MIS
-
2
Cylinder
2
misfire
detected
2
P0303
MIS
-
3
Cylinder
3
misfire
detected
9
P0304
MIS
-
4
Cylinder
4
misfire
detected
P0325
KNOCK
Knock
sensor
circuit
malfunction
93
P0335
CRANK
Crankshaft
position
sensor
circuit
malfunction
94
P0340
CAM
Camshaft
position
sensor
circuit
malfunction
95
P0400
EGR
Exhaust
gas
recirculation
flow
malfunction
96
P0403
EGRSOL
Exhaust
gas
recirculation
circuit
malfunction
97
P0420
CAT
Catalyst
system
efficiency
below
threshold
98
P0441
CPC
-
F
Evaporative
emission
control
system
incorrect
purge
flow
99
P0443
CPC
Evaporative
emission
control
system
purge
control
valve
circuit
malfunction
100
P0500
VSP
Vehicle
speed
sensor
malfunction
101
P0505
ISC
Idle
control
system
malfunction
102
P0506
ISC
-
L
Idle
control
system
RPM
lower
than
expected
103
P0507
ISC
-
H
Idle
control
system
RPM
higher
than
expected
104
P0600
-
Serial
communication
link
malfunction
105
P0601
RAM
Internal
control
module
memory
check
sum
error
106
P0703
ATBRK
Brake
switch
input
malfunction
T
107
I
74
Page 86 of 2890

ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T11aoj
2-7
11
.
Diagnostics
Chart
with
Trouble
Code
DTC
No
.
Abbreviation
(Subaru
select
monitor)
Item
Page
P0705
ATRNG
Transmissionrange
sensor
circuit
malfunction
108
P0710
ATF
Transmission
fluid
temperature
sensor
circuit
malfunction
109
P0720
ATVSP
Output
speed
sensor
(vehicle
speed
sensor
1)
circuit
malfunction
110
P0725
ATNE
Engine
speed
input
circuit
malfunction
111
P0731
ATGR1
Gear
1
incorrect
ratio
P0732
ATGR2
Gear
2
incorrect
ratio
1
2
P0733
ATGR3
Gear
3
incorrect
ratio
1
P0734
ATGR4
Gear
4
incorrect
ratio
P0740
ATLU
-
F
Torque
converter
clutch
system
malfunction
114
P0743
ATLU
Torque
converter
clutch
system
(duty
solenoid
B)
electrical
115
P0748
ATPL
Pressure
control
solenoid
(duty
solenoid
A)
electrical
116
P0753
ATSFTi
Shift
solenoid
A
(shift
solenoid
1)
electrical
117
P0758
ATSFT2
Shift
solenoid
B
(shift
solenoid
2)
electrical
118
P0760
ATOVR
-
F
Shift
solenoid
C
(shift
solenoid
3)
malfunction
119
P0763
ATOVR
Shift
solenoid
C
(shift
solenoid
3)
electrical
120
P1100
ST
-
SW
Starter
switch
circuit
malfunction
121
P1101
N/P
-
SW
Neutral
position
switch
circuit
malfunction
122
P1102
BR
Pressure
sources
switching
solenoid
valve
circuit
malfunction
123
P1103
TRQ
Engine
torque
control
signal
circuit
malfunction
124
P1500
FAN
-
1
Radiator
fan
relay
1
circuit
malfunction
125
P1502
FAN
-
F
Radiator
fan
function
problem
126
P1700
ATTH
Throttle
position
sensor
circuit
malfunction
127
P1701
ATCRS
Cruise
control
set
signal
circuit
malfunction
128
P1702
ATDIAG
Automatic
transmission
diagnosis
inputsignal
circuit
malfunction
I
129
75
Page 87 of 2890
2-7
[T11B0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
B
:
DTC
P0100
-
MASS
AIR
FLOW
SENSOR
CIRCUIT
MALFUNCTION
(QA)
-
WIRING
DIAGRAM
:
Main
relay
0
0
847
17
SBF-2
-
-
--
-
---
-
-
-
-
------
-
-
-
-
-
-
--
--------------------------11
ECM
E
(a
,~
a0
0
4
O
Mass
air
flow
sensor
12u34
u
56
u
78
u
1
234
171
192021
232
2526211
2
6
8
M56
4450
515
5355
59101112
7172
17576
77
7880
81
1
131
4
1516
1
2345
B2M0785
NOTE
:
For
the
diagnostic
procedure
on
mass
air
flow
sensor
cir-
cuit
malfunction
(DTC
P0100),
referto
2-7
[T10B0]*2
.
76
Page 88 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T1ico]
2-7
11
.
Diagnostics
Chart
with
Trouble
Code
C
:
DTC
P0101
-
MASS
AIR
FLOW
SENSOR
CIRCUIT
RANGE/PERFORMANCE
PROBLEM
(QA
-
R)
-
WIRING
DIAGRAM
:
Main
relay
0
0
B47
SBF-2
--------------------------11
'7
ECM
Ei
0
B12
0
O
Mass
a
ir
flowsensor
0
1
2u
4
u
56
u
78u
1234
1711920Zt
23
1526
271
34
6
8
M56
464
1
51152
153M
5
9101112
7112
747
76
7718
81
283
13141
16
1
234
5
82M0785
NOTE
:
For
the
diagnostic
procedure
on
mass
air
flow
sensor
cir-
cuit
range/performanceproblem
(DTC
P0101),
refer
to
2-7
[T10C0]*2
.
77
Page 89 of 2890
2-7
[TI
1D0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
D
:
DTC
P0105
-
PRESSURE
SENSOR
CIRCUIT
MALFUNCTION
(P
-
S)
-
WIRING
DIAGRAM
:
Main
rely
0
0
Pressure
sources
Pressure
switching
solenoid
sensor
valve
-it
r
O
CL~J
Bt
H
8~7
0
i2u3a
u
56u
78u--
u
~ot1
u
u
lt
1
1819
011
22
2168304~73447677
11
5
SBF-2
o
a,
123
~
5
6
e2nno7as
I
NOTE
:
For
the
diagnostic
procedure
on
pressure
sensor
circuit
malfunction
(DTC
P0105),
refer
to
2-7
[T10D0]*2
.
78
Page 90 of 2890
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[T11EO]
2-7
11
.
DiagnosticsChart
with
Trouble
Code
E
:
DTC
P0106
-
PRESSURE
SENSOR
CIRCUIT
RANGE/PERFORMANCE
PROBLEM
(PS
-
R)
-
WIRING
DIAGRAM
:
OQ
e,
9
30
11
11
22
1
M
,5
6
14
1~1
3
~
r
--
u
B2M0786
NOTE
:
For
the
diagnostic
procedure
on
pressure
sensor
circuit
range/performance
problem
(DTC
P0106),
refer
to
2-7
[T10E0]*2
.
79
Page 91 of 2890
2-7
[T11F0]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
11
.
Diagnostics
Chart
with
Trouble
Code
F
:
DTC
P0115
-
ENGINE
COOLANT
TEMPERATURE
SENSOR
CIRCUIT
MALFUNCTION
(TW)
-
WIRING
DIAGRAM
:
B84
B21
E2E8
ECM
2-Q
FE
884
1
2u34
u
56
u
78
u
171819
20
2122
23242526272829
30
4546
47
484950
5152
53
54555657
71127314757671787980818283
4_Lr
B21
1234
5678
9
1
10
1
11
1
12
~
Engine
coolant
temperature
sensor
E8
12
82M0539
NOTE
:
For
the
diagnostic
ature
sensor
circuit
[T10F0]*2
.
procedure
on
engine
coolant
temper-
malfunction
(DTC
P0115),
refer
to
2-7
80
Page 92 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T11GOj
2-7
11
.
Diagnostics
Chart
with
Trouble
Code
G
:
DTC
P0120
-
THROTTLE
POSITION
SENSOR
CIRCUIT
MALFUNCTION
(THV)
-
WIRING
DIAGRAM
:
B84
B21
E2
E13
Throttle
ECM
-21
position
sensor
B84
821
E13
12u34
u
56
u
78
u
171819
20
2122
2324
25
26
2728
29
30
45
1
46
1
47
1
48
1
49
1
50
5152
53545557
7172
73
7415
76
7778
79
808182
83
1234
5678
1
239
1
10
1
11
1
12
82M0540
NOTE
:
For
the
diagnostic
circuit
malfunction
procedure
on
throttle
position
sensor
(DTC
P0120),
refer
to
2-7
[T10G0]*2
.
81