Subaru Legacy III (2000-2003 year). Manual - part 107

EN(H4SO)-40

ENGINE (DIAGNOSTICS)

INSPECTION MODE

12.Inspection Mode

A: OPERATION

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)-45, Drive Cycle.>

DTC No.

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)

P0068

Manifold absolute pressure/barometric pressure circuit range/performance

P0107

Manifold absolute pressure/barometric pressure circuit low input

P0108

Manifold absolute pressure/barometric pressure circuit high input

P0112

Intake air temperature circuit low input

P0113

Intake air temperature circuit high input

P0117

Engine coolant temperature circuit low input

P0118

Engine coolant temperature circuit high input

P0122

Throttle/pedal position sensor/switch “A” circuit low input

P0123

Throttle/pedal position sensor/switch “A” circuit high input

P0129

Barometric pressure too low

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)

P0327

Knock sensor 1 circuit low input (Bank 1 or Single sensor)

P0328

Knock sensor 1 circuit high input (Bank 1 or Single sensor)

P0335

Crankshaft position sensor “A” circuit

P0336

Crankshaft position sensor “A” circuit range/performance

P0340

Camshaft position sensor “A” circuit (Bank 1 or Single sensor)

P0341

Camshaft position sensor “A” circuit range/performance (Bank 1 or Single sensor)

P0458

Evaporative emission control system purge control valve circuit low

P0462

Fuel level sensor circuit low input

P0463

Fuel level sensor circuit high input

P0502

Vehicle speed sensor circuit low input

P0503

Vehicle speed sensor intermittent/erratic/high

P0512

Starter request circuit

P0513

Incorrect immobilizer key

P0519

Idle air control circuit system performance

P0565

Cruise control on signal

P0604

Internal control module random access memory (RAM) error

P0691

Cooling fan 1 control circuit low

P0692

Cooling fan 1 control circuit high

P0703

Torque converter/brake switch “B” circuit

P0705

Transmission range sensor circuit (PRNDL input)

P0710

Transmission fluid temperature sensor circuit

P0716

Input/turbine speed sensor circuit range/performance

P0720

Output speed sensor circuit

P0726

Engine speed input circuit range/performance

P0731

Gear 1 incorrect ratio

P0732

Gear 2 incorrect ratio

EN(H4SO)-41

ENGINE (DIAGNOSTICS)

INSPECTION MODE

P0733

Gear 3 incorrect ratio

P0734

Gear 4 incorrect ratio

P0741

Torque converter clutch circuit performance or stuck off

P0743

Torque converter clutch circuit electrical

P0748

Pressure control solenoid “A” electrical

P0753

Shift solenoid “A” electrical

P0758

Shift solenoid “B” electrical

P0771

Shift solenoid “E” performance or stuck off

P0778

Pressure control solenoid “B” electrical

P0785

Shift/timing solenoid

P0851

Neutral switch input circuit low 

P0852

Neutral switch input circuit high

P0864

TCM communication circuit range/performance

P0865

TCM communication circuit low

P0866

TCM communication circuit high

P1110

Atmospheric pressure sensor circuit malfunction (low input)

P1111

Atmospheric pressure sensor circuit malfunction (high input)

P1492

EGR solenoid valve signal #1 circuit malfunction (low input)

P1493

EGR solenoid valve signal #1 circuit malfunction (high input)

P1494

EGR solenoid valve signal #2 circuit malfunction (low input)

P1495

EGR solenoid valve signal #2 circuit malfunction (high input)

P1496

EGR solenoid valve signal #3 circuit malfunction (low input)

P1497

EGR solenoid valve signal #3 circuit malfunction (high input)

P1498

EGR solenoid valve signal #4 circuit malfunction (low input)

P1499

EGR solenoid valve signal #4 circuit malfunction (high input)

P1510

ISC solenoid valve signal #1 circuit malfunction (low input)

P1511

ISC solenoid valve signal #1 circuit malfunction (high input)

P1512

ISC solenoid valve signal #2 circuit malfunction (low input)

P1513

ISC solenoid valve signal #2 circuit malfunction (high input)

P1514

ISC solenoid valve signal #3 circuit malfunction (low input)

P1515

ISC solenoid valve signal #3 circuit malfunction (high input)

P1516

ISC solenoid valve signal #4 circuit malfunction (low input)

P1517

ISC solenoid valve signal #4 circuit malfunction (high input)

P1518

Starter switch circuit low input

P1560

Back-up voltage circuit malfunction

P1570

Antenna

P1571

Reference code incompatibility

P1572

IMM circuit failure

P1574

Key communication failure

P1576

EGI control module EEPROM

P1577

IMM control module

P1698

Engine torque control cut signal circuit malfunction (low input)

P1699

Engine torque control cut signal circuit malfunction (high input)

P1700

Throttle position sensor circuit malfunction for AT

P1711

Engine torque control signal #1 circuit malfunction

P1712

Engine torque control signal #2 circuit malfunction

DTC No.

Item

EN(H4SO)-42

ENGINE (DIAGNOSTICS)

INSPECTION MODE

1. PREPARATION FOR THE INSPECTION 
MODE

1) Make sure that fuel remains approx. half amount
[20 to 40 

2

 (5.3 — 10.6 US gal, 4.4 — 8.8 Imp

gal)], and battery voltage is 12V or more.
2) Raise the vehicle using a garage jack and place
on safety stands or drive the vehicle onto free roll-
ers.

WARNING:
• Before raising the vehicle, ensure parking
brakes are applied.
• Do not use a pantograph jack in place of a
safety stand.
• Secure a rope or wire to the front and rear
towing or tie-down hooks to prevent the lateral
runout of front wheels.
• Do not abruptly depress/release clutch pedal
or accelerator pedal during works even when
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 safety
stands and the 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 performing diagnostics and clearing the
memory, check for any remaining unresolved trou-
ble data. <Ref. to EN(H4SO)-47, Clear Memory
Mode.>
2) Warm up engine.
3) Prepare Subaru Select Monitor kit. <Ref. to
EN(H4SO)-8, PREPARATION TOOL, General De-
scription.>

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

6) Connect test mode connector (A) at the lower
portion of instrument panel (on the driver's side), to
the side of the center console box.

(A) Safety stand

(B) Free rollers

EN-00041

( A )

( B )

EN-00038

ST

EN-00039

EN-00711

( A )

EN(H4SO)-43

ENGINE (DIAGNOSTICS)

INSPECTION MODE

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

(1) Connect Subaru Select Monitor to 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.
8) Turn ignition switch to ON (engine OFF) and
Subaru Select Monitor switch to ON.

9) On the «Main Menu» display screen, select the
{2. Each System Check} and press the [YES] key.
10) On the «System Selection Menu» display
screen, select the {Engine Control System} and
press the [YES] key.
11) Press the [YES] key after displayed the infor-
mation of engine type.
12) On the «Engine Diagnosis» display screen, se-
lect the {Dealer Check Mode Procedure} and press
the [YES] key.
13) When the “Perform Inspection (Dealer Check)
Mode?” is shown on the display screen, press the
[YES] key.
14) Perform subsequent procedures as instructed
on the display screen.
• If trouble still remains in the memory, the corre-
sponding diagnostic trouble code (DTC) appears
on the display screen.

NOTE:
• For detailed operation procedure, refer to the
SUBARU SELECT MONITOR OPERATION MAN-
UAL.
• For detailed concerning diagnostic trouble
codes, refer to the List of Diagnostic Trouble Code
(DTC).
<Ref. to EN(H4SO)-83, List of Diagnostic Trouble
Code (DTC).>
• Release the parking brake.
• The speed difference between front and rear
wheels may light either the ABS warning light, but
this indicates no malfunctions. When engine con-
trol diagnosis is finished, perform the ABS memory
clearance procedure of self-diagnosis system.

3. OBD-II GENERAL SCAN TOOL

1) After performing diagnostics and clearing the
memory, check for any remaining unresolved trou-
ble data: <Ref. to EN(H4SO)-47, Clear Memory
Mode.>  
2) Warm up engine.
3) Connect test mode connector (A) at the lower
side of the instrument panel (on the driver's side),
to the side of the center console box.

4) Connect the OBD-II general scan tool to its data
link connector (A) in the lower portion of the instru-
ment panel (on the driver's side).

CAUTION:
Do not connect the scan tools except for Suba-
ru Select Monitor and OBD-II general scan tool.

(A) Power switch

EN-00710

( A )

EN-00040

( A )

EN-00711

( A )

EN-00710

( A )