Subaru Legacy (2005 year). Manual — part 110

EN(H4SO 2.0)(diag)-29

ENGINE (DIAGNOSTICS)

Subaru Select Monitor

7. LED OPERATION MODE FOR ENGINE

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} and press the [YES] key.
3) Press the [YES] key after the information of engine type has been displayed.
4) On the «Engine Diagnosis» display screen, select the {Current Data Display & Save}, and then press the
[YES] key.
5) On the «Data Display» screen, select the {Data & LED 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.

Remarks

Display

Message

LED “ON” requirements

AT/MT identification signal

AT Vehicle ID Signal

ON or OFF

Illuminate (AT model)

Test mode signal

Test Mode Signal

ON or OFF

D check

Neutral position switch signal

Neutral Position Switch

ON or OFF

When neutral position signal is
entered.

Idle switch signal

Idle Switch Signal

ON or OFF

When idle switch signal is
entered.

Ignition switch signal

Ignition Switch

ON or OFF

When ignition switch is turned
ON.

Power steering switch signal

P/S Switch

ON or OFF

When power steering switch is
entered.

Air conditioning switch signal

A/C Switch

ON or OFF

When air conditioning switch is
input.

Steering wheel switch signal

Handle Switch

RHD or LHD

When handle switch Low sig-
nal is input.

Starter switch signal

Starter Switch

ON or OFF

When starter switch is input.

Rear oxygen sensor rich sig-
nal

Rear O2 Rich Signal

ON or OFF

When rear oxygen sensor mix-
ture ratio is rich.

Knocking signal

Knocking Signal

ON or OFF

When knocking signal is input.

Crankshaft position sensor
signal

Crankshaft Position Sig.

ON or OFF

When crankshaft position sen-
sor signal is input.

Camshaft position sensor sig-
nal

Camshaft Position Sig.

ON or OFF

When camshaft position sen-
sor signal is entered.

Rear defogger switch signal

Rear Defogger Switch

ON or OFF

When rear defogger switch is
turned ON.

Blower fan switch signal

Blower fan SW

ON or OFF

When blower fan switch is
turned ON.

Light switch signal

Light Switch

ON or OFF

When light switch is turned
ON.

Small light switch signal

Light Switch

ON or OFF

When small light switch is
turned ON.

Windshield wiper switch signal

Wiper Switch

ON or OFF

When windshield wiper switch
is turned ON.

A/C middle pressure switch
signal

A/C Mid Pressure Switch

ON or OFF

When A/C middle pressure
switch is turned ON.

Air conditioning relay signal

Compressor relay

ON or OFF

When air conditioning relay is
in function.

Radiator fan relay 1 signal

Radiator Fan Relay #1

ON or OFF

When radiator fan relay 1 is in
function.

Radiator fan relay 2 signal

Radiator Fan Relay #2

ON or OFF

When radiator fan relay 2 is in
function.

Fuel pump relay signal

Fuel Pump Relay

ON or OFF

ON output

AT retard angle demand signal Retard Signal

ON or OFF

When AT retard angle demand
signal is input.

AT fuel cut signal

Fuel Cut

ON or OFF

When AT fuel cut signal is
input.

EN(H4SO 2.0)(diag)-30

ENGINE (DIAGNOSTICS)

Subaru Select Monitor

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

AT coordinate permission sig-
nal

Torque Permission Signal

ON or OFF

When AT coordinate permis-
sion signal is input.

Clutch switch signal

Clutch Switch

ON or OFF

When clutch switch is turned
to ON.

Stop light switch signal

Stop Light Switch

ON or OFF

When stop light switch is
turned to ON.

SET/COAST switch signal

SET/CST Switch

ON or OFF

When SET/CST switch is
turned to ON.

RESUME/ACCEL switch sig-
nal

RES/ACC Switch

ON or OFF

When RES/ACC switch is
turned to ON.

Brake switch signal

Brake Switch

ON or OFF

When brake switch is turned to
ON.

Main switch signal

Main Switch

ON or OFF

When main switch is turned to
ON.

Cancel switch signal

Cancel Switch

ON or OFF

When cancel switch is turned
to ON.

Electronic throttle control
motor relay signal

ETC Motor Relay

ON or OFF

When electronic throttle con-
trol motor relay is in function.

Data reception signal

Body Int. Unit Data

ON or OFF

When data reception signal is
entered.

Counter update signal

Body Int. Unit Count

ON or OFF

When counter update signal is
entered.

Remarks

Display

Message

LED “ON” requirements

EN(H4SO 2.0)(diag)-31

ENGINE (DIAGNOSTICS)

Read Diagnostic Trouble Code (DTC)

10.Read Diagnostic Trouble

Code (DTC)

A: OPERATION

1. SUBARU SELECT MONITOR (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} and press the [YES]
key.
3) Press the [YES] key after the information of en-
gine type has been displayed.
4) On the «Engine Diagnosis» screen, select the
{Diagnostic Code(s) Display}, and then press the
[YES] key.
5) On the «Diagnostic Code(s) Display» screen,
select the {Current Diagnostic Code(s)} or {History
Diagnostic Code(s)}, and then press the [YES] key.

NOTE:
• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MAN-
UAL.
• For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”. <Ref. to EN(H4SO
2.0)(diag)-64, List of Diagnostic Trouble Code
(DTC).>

2. SUBARU SELECT MONITOR (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} and press the [YES]
key.
3) Press the [YES] key after the information of en-
gine type has been displayed.
4) On the «Engine Diagnosis» display screen, se-
lect the {OBD System} and press the [YES] key.
5) On the «OBD Menu» display screen, select the
{Diagnostic Code(s) Display} and press the [YES]
key.
6) Make sure DTC is shown on the screen.

NOTE:
• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MAN-
UAL.
• For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”. <Ref. to EN(H4SO
2.0)(diag)-64, List of Diagnostic Trouble Code
(DTC).>

3. GENERAL SCAN TOOL

Refer to the data denoting emission-related power-
train DTC.
For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”. <Ref. to EN(H4SO
2.0)(diag)-64, List of Diagnostic Trouble Code
(DTC).>

NOTE:
Refer to the general scan tool manufacturer’s oper-
ation manual to access powertrain DTC (MODE
$03).

EN(H4SO 2.0)(diag)-32

ENGINE (DIAGNOSTICS)

Inspection Mode

11.Inspection Mode

A: PROCEDURE

Carry out trouble diagnosis shown in the following DTC table.
When performing trouble diagnosis which is not shown in the DTC table, refer to the next item Drive cycle.
<Ref. to EN(H4SO 2.0)(diag)-31, Read Diagnostic Trouble Code (DTC).>

DTC

Item

P0031

HO2S Heater Control Circuit Low (Bank 1 Sensor 1)

P0032

HO2S Heater Control Circuit High (Bank 1 Sensor 1)

P0037

HO2S Heater Control Circuit Low (Bank 1 Sensor 2)

P0038

HO2S Heater Control Circuit High (Bank 1 Sensor 2)

P0107

Manifold Absolute Pressure/Barometric Pressure Circuit Low Input

P0108

Manifold Absolute Pressure/Barometric Pressure Circuit High Input

P0112

Intake Air Temperature Sensor 1 Circuit Low

P0113

Intake Air Temperature Sensor 1 Circuit High

P0117

Engine Coolant Temperature Circuit Low

P0118

Engine Coolant Temperature Circuit High

P0122

Throttle/Pedal Position Sensor/Switch “A” Circuit Low

P0123

Throttle/Pedal Position Sensor/Switch “A” Circuit High

P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

P0132

O2 Sensor Circuit High Voltage (Bank 1 Sensor 1)

P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

P0222

Throttle/Pedal Position Sensor/Switch “B” Circuit Low

P0223

Throttle/Pedal Position Sensor/Switch “B” Circuit High

P0327

Knock Sensor 1 Circuit Low (Bank 1 or Single Sensor)

P0328

Knock Sensor 1 Circuit High (Bank 1 or Single Sensor)

P0335

Crankshaft Position Sensor “A” Circuit

P0340

Camshaft Position Sensor “A” Circuit (Bank 1 or Single Sensor)

P0458

Evaporative Emission System Purge Control Valve Circuit Low

P0459

Evaporative Emission System Purge Control Valve Circuit High

P0462

Fuel Level Sensor “A” Circuit Low

P0463

Fuel Level Sensor “A” Circuit High

P0500

Vehicle Speed Sensor “A”

P0512

Starter Request Circuit

P0513

Incorrect Immobilizer Key

P0519

Idle Air Control System Performance

P0600

Serial Communication Link

P0604

Internal Control Module Random Access Memory (RAM) Error

P0605

Internal Control Module Read Only Memory (ROM) Error

P0607

Control Module Performance

P0638

Throttle Actuator Control Range/Performance (Bank 1)

P0691

Fan 1 Control Circuit Low

P0692

Fan 1 Control Circuit High

P0851

Park/Neutral Switch Input Circuit Low

P0852

Park/Neutral Switch Input Circuit High

P1134

A/F Sensor Micro-Computer Problem

P1160

Return Spring Failure

P1518

Starter Switch Circuit Low Input

P1560

Back-up Voltage Circuit Malfunction

P1570

Antenna