Subaru Legacy III (2000-2003 year). Service manual — part 208
EN(H4SOw/oOBD)-22
ENGINE (DIAGNOSTICS)
SUBARU SELECT MONITOR
• A list of the support data is shown in the following table.
*1: With catalyst model only
*2: Without catalyst model only
NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
Contents
Unit of measure
Battery voltage
V
Vehicle speed signal
km/h or MPH
Engine speed signal
rpm
Engine coolant temperature signal
°
C or
°
F
Ignition timing signal
deg
Pressure sensor signal
mmHg or kPa or inHg or psi
Intake air temperature signal
°
C or
°
F
Throttle position signal
V
Injection pulse width
ms
ISC valve step
STEP
Oxygen sensor output signal*1
V
Knock correction
deg
CO resistor*2
g/h
A/F correction #1
%
A/F learning #1
%
Ignition switch signal
ON or OFF
Automatic transmission vehicle identification signal
ON or OFF
Test mode connector signal
ON or OFF
Neutral position switch signal
ON or OFF
Air conditioning switch signal
ON or OFF
Air conditioning compressor signal
ON or OFF
Radiator fan relay signal #1
ON or OFF
Fuel pump relay signal
ON or OFF
Knocking signal
ON or OFF
Radiator fan relay signal #2
ON or OFF
Torque control signal #1
ON or OFF
Torque control signal #2
ON or OFF
Torque permission signal
ON or OFF
TCS AET signal
ON or OFF
Canister purge control solenoid valve
ON or OFF
Oxygen sensor rich signal
ON or OFF
Read memory connector signal
ON or OFF
P/S switch
ON or OFF
Starter switch
ON or OFF
Crankshaft position sensor signal
ON or OFF
Camshaft position sensor signal
ON or OFF
Rear defogger switch
ON or OFF
Blower fan switch
ON or OFF
Light switch
ON or OFF
Idle switch signal
ON or OFF
EN(H4SOw/oOBD)-23
ENGINE (DIAGNOSTICS)
SUBARU SELECT MONITOR
4. LED OPERATION MODE FOR ENGINE
*1: On MT model, switch is turned ON when gear position is in neutral position.
On AT model, switch is turned ON when shift position is in “P” or “N” position.
*2: With catalyst model only
NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
Contents
Message
LED “ON” requirements
Ignition switch signal
ON or OFF
When ignition switch is turned ON.
Automatic transmission vehicle identification
signal
ON or OFF
When AT identification signal is entered.
Test mode connector signal
ON or OFF
When test mode connector is connected.
Neutral position switch signal*1
ON or OFF
When neutral position switch signal is entered.
Air conditioning switch signal
ON or OFF
When air conditioning switch is turned ON.
Air conditioning compressor signal
ON or OFF
When air conditioning compressor is in function.
Radiator fan relay signal #1
ON or OFF
When radiator fan relay #1 is in function.
Fuel pump relay signal
ON or OFF
When fuel pump relay is in function.
Knocking signal
ON or OFF
When knocking signal is entered.
Radiator fan relay signal #2
ON or OFF
When radiator fan relay #2 is in function.
Engine torque control signal #1
ON or OFF
When torque control signal #1 is entered.
Torque control signal #2
ON or OFF
When torque control signal #2 is entered.
Torque permission signal
ON or OFF
When torque permission signal is entered.
TCS AET signal
ON or OFF
When TCS AET signal is entered.
Canister purge control solenoid valve
ON or OFF
When canister purge control solenoid valve is in function.
Oxygen sensor rich signal*2
ON or OFF
When oxygen sensor mixture ratio is rich.
Read memory connector signal
ON or OFF
When read memory connector is connected.
P/S switch
ON or OFF
When steering wheel is turned.
Starter switch
ON or OFF
When starter switch signal is entered.
Crankshaft position sensor signal
ON or OFF
When crankshaft position sensor signal is entered.
Camshaft position sensor signal
ON or OFF
When camshaft position sensor signal is entered.
Rear defogger switch
ON or OFF
When rear defogger switch signal is entered.
Blower fan switch
ON or OFF
When blower fan switch signal is entered.
Light switch
ON or OFF
When light switch signal is entered.
Idle switch signal
ON or OFF
When throttle sensor sends signal that throttle opening angle
is in idle position.
EN(H4SOw/oOBD)-24
ENGINE (DIAGNOSTICS)
READ DIAGNOSTIC TROUBLE CODE (DTC)
7. Read Diagnostic Trouble Code (DTC)
A: OPERATION
1. WITH SUBARU SELECT MONITOR
1) On the «Main Menu» display screen, select the {Each System Check} and press the [YES] key.
2) On the «System Selection Menu» display screen, select the {Engine Control System} and press the [YES]
key.
3) Press the [YES] key after displayed the information of engine type.
4) On the «Engine Diagnosis» display screen, select the {Diagnostic Code(s) Display} and press the [YES]
key.
5) On the «Diagnostic Code(s) Display» display screen, select the {Current Diagnostic Code(s)} or {History
Diagnostic Code(s)} and press the [YES] key.
NOTE:
• For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
• For detailed concerning diagnostic trouble codes, refer to the List of Diagnostic Trouble Code (DTC). <Ref.
to EN(H4SOw/oOBD)-57, LIST, List of Diagnostic Trouble Code (DTC).>
2. WITHOUT SUBARU SELECT MONITOR
Step
Value
Yes
No
1
CHECK STATUS OF CHECK ENGINE MAL-
FUNCTION INDICATOR LAMP (MIL).
1) Turn ignition switch to OFF.
2) Connect read memory connector. <Ref. to
EN(H4SOw/oOBD)-9, LOCATION, Electri-
cal Components Location.>
3) Turn ignition switch to ON.
Does the MIL come on?
MIL illuminates.
Check the follow-
ing and repair if
necessary.
NOTE:
• Open or short
circuit in engine
control module
power supply or
ground line
• Open or short
circuit in CHECK
ENGINE malfunc-
tion indicator lamp
2
CHECK DIAGNOSTIC TROUBLE CODE
(DTC).
Does the MIL indicate diagnostic trouble code
(DTC)?
DTC is displayed.
Record diagnostic
trouble code
(DTC). Then turn
ignition switch to
OFF, disconnect
read memory con-
nector.
Complete read
diagnostic trouble
code. Turn igni-
tion switch to OFF
and disconnect
read memory con-
nector.
EN(H4SOw/oOBD)-25
ENGINE (DIAGNOSTICS)
READ DIAGNOSTIC TROUBLE CODE (DTC)
The CHECK ENGINE malfunction indicator lamp (MIL) flashes the code corresponding to the faulty parts.
The long segment (1.3 seconds ON) indicates a “ten”, and the short segment (0.2 seconds ON) signifies
“one”. And middle segment (0.5 seconds ON) means OK code.
NOTE:
• For detailed concerning diagnostic trouble codes, refer to the List of Diagnostic Trouble Code (DTC). <Ref.
to EN(H4SOw/oOBD)-57, LIST, List of Diagnostic Trouble Code (DTC).>
EN-01039
OK code
Trouble
code 13
Trouble
code 21
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
0.5
1.3
1.3
1.3
1.3
1.3
1.8
1.3
1.8
0.2
0.2
0.2 0.2
0.2
0.2 0.2
Unit: second
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
0.2
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