Subaru Legacy III (2000-2003 year). Manual - part 208

 

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Subaru Legacy III (2000-2003 year). 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.

Go to step 2.

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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