Page 17 of 2890
2-7
[T1A2]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
1
.
General
1
.
General
A
:
ENGINE
2
.
SCHEMATIC
B2M0828A
Page 18 of 2890
![SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[Tiq2]
2-
1
.
General
1~
Engine
control
module
(ECM)
~
Radiator
fan
~2
Ignition
coil~s
Radiator
fan
relay
~3
Ignitqr
~s
Pressure
sources
switching
solenoid
valve
~ SUBARU LEGACY 1996 Service Repair Manual
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[Tiq2]
2-
1
.
General
1~
Engine
control
module
(ECM)
~
Radiator
fan
~2
Ignition
coil~s
Radiator
fan
relay
~3
Ignitqr
~s
Pressure
sources
switching
solenoid
valve
~](/manual-img/17/57433/w960_57433-17.png)
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[Tiq2]
2-
1
.
General
1~
Engine
control
module
(ECM)
~
Radiator
fan
~2
Ignition
coil~s
Radiator
fan
relay
~3
Ignitqr
~s
Pressure
sources
switching
solenoid
valve
~4
Crankshaft
position
sensor
~
Knock
sensor
~5
Camshaft
position
sensor
~
Back-pressure
transducer
Throttle
position
sensor
~s
Front
oxygen
sensor
~7
duel
injectors
~o
Rear
oxygen
sensor
(Except
California
model)
~8
Pressure
regulator
~
Pressure
sensor
Engine
coolant
temperature
sensor
~z
A/C
compressor
~o
Mass
air
flow
sensor
~
Inhibitor
switch
Idle
air
control
solenoid
valve
~
CHECK
ENGINE
malfunction
indicator
lamp
(MIL)
~z
Purge
control
solenoid
valve
~
Tachometer
0
Fuel
pump
~s
A/C
relay
0
PCV
valve
~
A/C
control
module
~s
Air
cleaner
~eIgnition
switch
Canister
~
Transmission
control
module
(TCM)
~
Main
relay
~o
Vehicle
speed
sensor
2
~a
Fuel
pump
relay
~
Data
link
connector
(For
Subaru
select
monitor)
~s
Fuel
filter
@
Data
link
connector
(For
Subaru
select
monitor
and
~o
Front
catalytic
converter
OBD-II
general
scan
tool)
Rear
catalytic
converter
@
Two
way
valve
~2
MGR
valve
~a
Rear
oxygen
sensor
(California
model
only)
EGR
control
solenoid
valve
~
Filter
3
Page 19 of 2890
2-7
[T2A2]
ON-BOARD
DIAGNOSTICS
11
SYSTEM
2
.
Electrical
Components
Location
2
.
Electrical
Components
Location
A
:
ENGINE
2
.
SENSOR
OBD0009A
1~
Pressure
sensor
~5
Knock
sensor
~2
Mass
air
flow
sensor
~s
Camshaft
position
sensor
~3
Engine
coolant
temperature
sensor
07
Crankshaft
position
sensor
~4
Throttleposition
sensor
4
Page 20 of 2890
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[Tzn2]
2-7
2
.
Electrical
Components
Location
1A
OBD0014A
B2M0213B
Page 21 of 2890
2-7
[72A2]
ON-BOARD
DIAGNOSTICS
Ii
SYSTEM
2
.
Electrical
Components
Location
6
%
Front
oxygen
sensor
~
Front
catalytic
converter
~9
Rear
oxygen
sensor
(Except
California
model)
~2
Rear
catalytic
converter
Rear
oxygen
sensor
(California
model)
Page 22 of 2890
ON-BOARD
DIAGNOSTICS
11
SYSTEM
[rzA21
2-7
2
.
Electrical
Components
Location
MUM
OBD0525C
OBD0524C
7
Page 23 of 2890
2-7
[T2A3]
ON-BOARD
DIAGNOSTICS
II
SYSTEM
2
.
Electrical
Components
Location
3
.
SOLENOID
VALVE,
EMISSION
CONTROL
SYSTEM
PARTS
AND
IGNITION
SYSTEM
PARTS
osoooose
Pressure
sources
switching
solenoid
valve
OS
Purge
control
solenoid
valve
(k
Idle
air
control
solenoid
valve
06
Ignitor
~3
EGR
valve
(~7
Ignition
coil
4
EGR
control
solenoid
valve
Page 24 of 2890
ON-BOARD
DIAGNOSTICS
II
SYSTEM
[T2A3]
2-7
2
.
Electrical
Components
Location
OBD0024A
OBD0025A
88M0160A