Subaru Legacy (2005 year). Service manual — part 430

EN(H6DO)(diag)-33

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
{DTC 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(H6DO)(diag)-66, 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
{DTC 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(H6DO)(diag)-66, List of Diagnostic Trouble
Code (DTC).>

3. GENERAL SCAN TOOL

Refer to data denoting emission-related powertrain
DTC.
For details concerning DTC, refer to “List of Diag-
nostic Trouble Code (DTC)”. <Ref. to
EN(H6DO)(diag)-66, List of Diagnostic Trouble
Code (DTC).>

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

EN(H6DO)(diag)-34

ENGINE (DIAGNOSTICS)

Inspection Mode

11.Inspection Mode

A: PROCEDURE

When performing the diagnose without the “List of Diagnostic Trouble Code (DTC)”, refer the item of drive cy-
cle. <Ref. to EN(H6DO)(diag)-39, Drive Cycle.>

DTC

Item

On condition

P0011

Intake Camshaft Position-Timing Over-Advanced or System Performance
(Bank 1)

—

P0021

Intake Camshaft Position-Timing Over-Advanced or System Performance
(Bank 2)

—

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)

—

P0051

HO2S Heater Control Circuit Low (Bank 2 Sensor 1)

—

P0052

HO2S Heater Control Circuit High (Bank 2 Sensor 1)

—

P0057

HO2S Heater Control Circuit Low (Bank 2 Sensor 2)

—

P0058

HO2S Heater Control Circuit High (Bank 2 Sensor 2)

—

P0077

Intake Valve Control Solenoid Circuit High (Bank 1)

—

P0083

Intake Valve Control Solenoid Circuit High (Bank 2)

—

P0102

Mass or Volume Air Flow Circuit Low Input

—

P0103

Mass or Volume Air Flow Circuit High Input

—

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)

—

P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

—

P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

—

P0151

O2 Sensor Circuit Low Voltage (Bank 2 Sensor 1)

—

P0152

O2 Sensor Circuit High Voltage (Bank 2 Sensor 1)

—

P0157

O2 Sensor Circuit Low Voltage (Bank 2 Sensor 2)

—

P0158

O2 Sensor Circuit High Voltage (Bank 2 Sensor 2)

—

P0171

System Too Lean (Bank 1)

—

P0172

System Too Rich (Bank 1)

—

P0174

System Too Lean (Bank 2)

—

P0175

System Too Rich (Bank 2)

—

P0197

Engine Oil Temperature Sensor Low

—

P0198

Engine Oil Temperature Sensor High

—

P0222

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

—

P0223

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

—

P0230

Fuel Pump Primary Circuit

—

P0327

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

—

P0328

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

—

P0332

Knock Sensor 2 Circuit Low (Bank 2)

—

P0333

Knock Sensor 2 Circuit High (Bank 2)

—

P0335

Crankshaft Position Sensor “A” Circuit

—

P0340

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

—

EN(H6DO)(diag)-35

ENGINE (DIAGNOSTICS)

Inspection Mode

P0345

Camshaft Position Sensor “A” Circuit (Bank 2)

—

P0458

Evaporative Emission System Purge Control Valve Circuit Low

—

P0462

Fuel Level Sensor “A” Circuit Low

—

P0463

Fuel Level Sensor “A” Circuit High

—

P0500

Vehicle Speed Sensor “A”

—

P0512

Starter Request Circuit

—

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

—

P0700

Transmission Control System (MIL Request)

—

P0851

Park/Neutral Switch Input Circuit Low

—

P0852

Park/Neutral Switch Input Circuit High

—

P1160

Return Spring Failure

—

P1518

Starter Switch Circuit Low Input

—

P1560

Back-up Voltage Circuit Malfunction

—

P2088

Intake Camshaft Position Actuator Control Circuit Low (Bank 1)

—

P2089

Intake Camshaft Position Actuator Control Circuit High (Bank 1)

—

P2092

Intake Camshaft Position Actuator Control Circuit Low (Bank 2)

—

P2093

Intake Camshaft Position Actuator Control Circuit High (Bank 2)

—

P2101

Throttle Actuator Control Motor Circuit Range/Performance

—

P2102

Throttle Actuator Control Motor Circuit Low

—

P2103

Throttle Actuator Control Motor Circuit High

—

P2109

Throttle/Pedal Position Sensor “A” Minimum Stop Performance

—

P2122

Throttle/Pedal Position Sensor/Switch “D” Circuit Low Input

—

P2123

Throttle/Pedal Position Sensor/Switch “D” Circuit High Input

—

P2127

Throttle/Pedal Position Sensor/Switch “E” Circuit Low Input

—

P2128

Throttle/Pedal Position Sensor/Switch “E” Circuit High Input

—

P2135

Throttle/Pedal Position Sensor/Switch “A”/“B” Voltage Correlation

—

P2138

Throttle/Pedal Position Sensor/Switch “D”/“E” Voltage Correlation

—

P2503

Charging System Voltage Low

—

DTC

Item

On condition

EN(H6DO)(diag)-36

ENGINE (DIAGNOSTICS)

Inspection Mode

1. PREPARATION FOR THE INSPECTION
MODE

1) Check that the battery voltage is more than 12 V
and fuel remains half [20 — 40

2 (5.3 — 10.6 US

gal, 4.4 — 8.8 Imp gal)].
2) Lift-up the vehicle using a garage jack and place
it on rigid racks, or drive the vehicle onto free roll-
ers.

WARNING:
• Before lifting-up the vehicle, ensure parking
brakes are applied.
• Do not use a pantograph jack in place of a rig-
id rack.
• Secure a rope or wire to the front or rear tow-
ing hooks to prevent the lateral runout of front
wheels.
• Do not abruptly depress/release clutch pedal
or accelerator pedal during works even when
the engine is operating at low speeds since this
may cause vehicle to jump off free rollers.
• In order to prevent the vehicle from slipping
due to vibration, do not place any wooden
blocks or similar items between the rigid racks
and vehicle.
• Since the rear wheels will also rotate, do not
place anything near them. Also, make sure that
nobody goes in front of the vehicle.

2. SUBARU SELECT MONITOR

1) After clearing the memory, check for any remain-
ing unresolved trouble data. <Ref. to EN(H6DO)(di-
ag)-41, Clear Memory Mode.>
2) Idle the engine.
3) Prepare the Subaru Select Monitor kit. <Ref. to
EN(H6DO)(diag)-7, PREPARATION TOOL, Gen-
eral Description.>

4) Connect the diagnosis cable to Subaru Select
Monitor.
5) Insert the cartridge to Subaru Select Monitor.
<Ref. to EN(H6DO)(diag)-7, PREPARATION
TOOL, General Description.>

6) Connect the test mode connector (A) located at
the lower portion of glove box.

(A) Rigid racks

(B) Free rollers

EN-00041

(A)

(B)

EN-00038

EN-00039

PI-00201

(A)