Subaru Legacy III (2000-2003 year). Manual - part 105

EN(H4SO)-32

ENGINE (DIAGNOSTICS)

SUBARU SELECT MONITOR

10. Subaru Select Monitor

A: OPERATION

1. HOW TO USE SUBARU SELECT MONI-
TOR

1) Prepare Subaru Select Monitor kit. <Ref. to
EN(H4SO)-8, PREPARATION TOOL, General De-
scription.>

2) Connect diagnosis cable to Subaru Select Mon-
itor.
3) Insert cartridge into Subaru Select Monitor.
<Ref. to EN(H4SO)-8, PREPARATION TOOL,
General Description.>

4) Connect Subaru Select Monitor to data link con-
nector.

(1) Data link connector (A) located in the lower
portion of the instrument panel (on the driver's
side).

(2) Connect diagnosis cable to data link con-
nector.

CAUTION:
Do not connect scan tools except for Subaru 
Select Monitor and OBD-II general scan tool.
5) Turn ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.

6) Using Subaru Select Monitor, call up diagnostic
trouble code(s) and various data, then record them.

2. READ DIAGNOSTIC TROUBLE CODE 
(DTC) FOR ENGINE. (NORMAL MODE)

Refer to Read Diagnostic Trouble Code for infor-
mation about how to indicate DTC. <Ref. to
EN(H4SO)-39, Read Diagnostic Trouble Code.>

3.  READ DIAGNOSTIC TROUBLE CODE 
(DTC) FOR ENGINE. (OBD MODE)

Refer to Read Diagnostic Trouble Code for infor-
mation about how to indicate DTC. <Ref. to
EN(H4SO)-39, Read Diagnostic Trouble Code.>

EN-00038

ST

EN-00039

EN-00710

( A )

(A) Power switch

EN-00040

( A )

EN(H4SO)-33

ENGINE (DIAGNOSTICS)

SUBARU SELECT MONITOR

4. READ CURRENT DATA FOR ENGINE. (NORMAL MODE)

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 {Current Data Display & Save} and press the [YES]
key.
5) On the «Data Display Menu» display screen, select the {Data Display} and press the [YES] key.
6) Using the scroll key, move the display screen up or down until the desired data is shown.
• A list of the support data is shown in the following table.

Contents

Display

Unit of measure

Battery voltage

Battery Voltage

V

Vehicle speed signal

Vehicle Speed

km/h or MPH

Engine speed signal

Engine Speed

rpm

Engine coolant temperature signal

Coolant Temp.

°

C or  

°

F

Ignition timing signal

Ignition Timing

deg

Throttle position signal

Throttle Opening Angle

%

Throttle position signal

Throttle Sensor Voltage

V

Injection pulse width

Fuel Injection Width Pulse

ms

Idle air control signal

ISC Valve Step

STEP

Engine load data

Engine Load

%

Front oxygen (A/F) sensor output signal

A/F Sensor #1

—

Front oxygen (A/F) sensor resistance value

A/F Sensor #1 resistance

ohm

Rear oxygen sensor output signal

Rear O2 Sensor

V

Short term fuel trim

A/F Correction #1

%

Knock sensor signal

Knocking Correction

deg

Atmospheric absolute pressure signal

Atmosphere Pressure

mmHg or kPa or inHg or 

psig

Intake manifold relative pressure signal

Mani. Relative Pressure

mmHg or kPa or inHg or 

psig

Intake manifold absolute pressure signal

Mani. Absolute Pressure

mmHg or kPa or inHg or 

psig

A/F correction (short term fuel trim) by rear oxygen sensor

A/F Correction #3

%

Long term whole fuel trim

A/F Learning #1

%

Front oxygen (A/F) sensor heater current

Front O2 Heater #1

A

Rear oxygen sensor heater voltage

Rear O2 Heater Voltage

A

Canister purge control solenoid valve duty ratio

CPC Valve Duty Ratio

%

Fuel level signal

Fuel Level

V

Intake air temperature signal

Intake Air Temp.

°

C or  

°

F

Learned ignition timing

Learned Ignition Timing

deg

EGR control signal

No. of EGR Steps

STEP

Identification signal of AT vehicle

AT vehicle ID Signal

AT/MT

Alternator duty ratio

ALT Duty Ratio

%

Ignition switch signal

Ignition Switch

ON or OFF

Test mode connector signal

Test Mode Signal

ON or OFF

Neutral position switch signal

Neutral Position Switch

ON or OFF

Air conditioning switch signal

A/C Switch

ON or OFF

Air conditioning compressor signal

A/C Compressor Signal

ON or OFF

Radiator main fan relay signal

Radiator Fan Relay #1

ON or OFF

Fuel pump relay signal

Fuel Pump Relay

ON or OFF

Knocking signal

Knocking Signal

ON or OFF

Radiator sub fan relay signal

Radiator Fan Relay #2

ON or OFF

Engine torque control signal #1

Torque Control Signal #1

ON or OFF

EN(H4SO)-34

ENGINE (DIAGNOSTICS)

SUBARU SELECT MONITOR

NOTE:
• For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.
• For select monitor display details, refer to the following.

Engine torque control signal #2

Torque Control Signal #2

ON or OFF

Engine torque control permission signal

Torque Permission Signal

ON or OFF

Rear oxygen sensor rich signal

Rear O2 Rich Signal

Rich/lean

Starter switch signal

Starter Switch

ON or OFF

Idle switch signal

Idle Switch Signal

ON or OFF

Crankshaft position sensor signal

Crankshaft Position Sig.

ON or OFF

Camshaft position sensor signal

Camshaft Position Sig.

ON or OFF

Rear defogger switch signal

Rear Defogger Switch

ON or OFF

Blower fan switch signal

Blower Fan Switch

ON or OFF

Small light switch signal

Light Switch

ON or OFF

Power steering switch signal

P/S Switch

ON or OFF

Wiper switch signal

Wiper Switch

ON or OFF

Contents

Display

Unit of measure

EN(H4SO)-35

ENGINE (DIAGNOSTICS)

SUBARU SELECT MONITOR

5. READ CURRENT DATA FOR ENGINE. (OBD MODE)

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 {OBD System} and press the [YES] key.
5) On the «OBD Menu» display screen, select the {Current Data Display & Save} and press the [YES] key.
6) On the «Data Display Menu» display screen, select the {Data Display} and press the [YES] key.
7) Using the scroll key, move the display screen up or down until the desired data is shown.
• A list of the support data is shown in the following table.

NOTE:
For detailed operation procedure, refer to the SUBARU SELECT MONITOR OPERATION MANUAL.

Contents

Display

Unit of measure

Number of diagnosis code

Number of Diag. Code

—

Malfunction indicator lamp status

MI 

ON or OFF

Monitoring test of misfire

Misfire monitoring

Complete or incomplete

Monitoring test of fuel system

Fuel system monitoring

Complete or incomplete

Monitoring test of comprehensive component

Component monitoring 

Complete or incomplete

Test of catalyst

Catalyst Diagnosis

Complete or incomplete

Test of heated catalyst

Heated catalyst

No support

Test of evaporative emission purge control system

Evaporative purge system

Complete or incomplete

Test of secondary air system

Secondary air system

No support

Test of air conditioning system refrigerant

A/C system refrigerant

No support

Test of oxygen sensor

Oxygen sensor

Complete or incomplete

Test of oxygen sensor heater

O2 Heater Diagnosis

Complete or incomplete

Air fuel ratio control system for bank 1

Fuel System for Bank 1

ON or OFF

Engine load data

Calculated load valve

—

Engine coolant temperature signal

Coolant Temp.

°

C or  

°

F

Short term fuel trim by front oxygen (A/F) sensor

Short term fuel trim B1

%

Long term fuel trim by front oxygen (A/F) sensor

Long term fuel trim B1

%

Intake manifold absolute pressure signal

Mani. Absolute Pressure

mmHg or kPa or inHg or 

psig

Engine speed signal

Engine Speed

rpm

Vehicle speed signal

Vehicle Speed

km/h or MPH

Ignition timing advance for #1 cylinder

Ignition timing adv. #1

°

Intake air temperature signal

Intake Air Temp.

°

C or  

°

F

Intake air amount signal

Mass Air Flow

g/s

EGR signal

EGR System

No support

Throttle position signal

Throttle Opening Angle

%

Rear oxygen sensor output signal

Oxygen Sensor #12

V

Air fuel ratio correction by rear oxygen sensor

Short term fuel trim #12

%

On-board diagnostic system

OBD System

—

Front oxygen (A/F) sensor equipment

Oxygen sensor #11

Supported

Oxygen sensor equipment

Oxygen sensor #12

Supported

Front oxygen (A/F) sensor output signal

A/F Sensor #11

V