Subaru Legacy III (2000-2003 year). Service 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
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