Subaru Legacy III (2000-2003 year). Manual - part 473

EN(H4DOSTC)-62

ENGINE (DIAGNOSTICS)

LIST OF DIAGNOSTIC TROUBLE CODE (DTC)

16.List of Diagnostic Trouble Code (DTC)

A: LIST

DTC

No.

Item

Index

P0031

HO2S Heater Control Circuit Low 
(Bank 1 Sensor 1)

<Ref. to EN(H4DOSTC)-66, DTC P0031 — HO2S HEATER CONTROL CIR-
CUIT LOW (BANK 1 SENSOR 1) —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P0032

HO2S Heater Control Circuit High 
(Bank 1 Sensor 1)

<Ref. to EN(H4DOSTC)-70, DTC P0032 — HO2S HEATER CONTROL CIR-
CUIT HIGH (BANK 1 SENSOR 1) —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P0037

HO2S Heater Control Circuit Low 
(Bank 1 Sensor 2)

<Ref. to EN(H4DOSTC)-72, DTC P0037 — HO2S HEATER CONTROL CIR-
CUIT LOW (BANK 1 SENSOR 2) —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P0038

HO2S Heater Control Circuit High 
(Bank 1 Sensor 2)

<Ref. to EN(H4DOSTC)-76, DTC P0038 — HO2S HEATER CONTROL CIR-
CUIT HIGH (BANK 1 SENSOR 2) —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P0102

Mass or Volume Air Flow Circuit Low 
Input

<Ref. to EN(H4DOSTC)-78, DTC P0102 — MASS OR VOLUME AIR FLOW 
CIRCUIT LOW INPUT —, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

P0103

Mass or Volume Air Flow Circuit High 
Input

<Ref. to EN(H4DOSTC)-82, DTC P0103 — MASS OR VOLUME AIR FLOW 
CIRCUIT HIGH INPUT —, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

P0107

Manifold Absolute Pressure/Baro-
metric Pressure Circuit Low Input

<Ref. to EN(H4DOSTC)-84, DTC P0107 — MANIFOLD ABSOLUTE PRES-
SURE/BAROMETRIC PRESSURE CIRCUIT LOW INPUT —, Diagnostic 
Procedure with Diagnostic Trouble Code (DTC).>

P0108

Manifold Absolute Pressure/Baro-
metric Pressure Circuit High Input

<Ref. to EN(H4DOSTC)-88, DTC P0108 — MANIFOLD ABSOLUTE PRES-
SURE/BAROMETRIC PRESSURE CIRCUIT HIGH INPUT —, Diagnostic 
Procedure with Diagnostic Trouble Code (DTC).>

P0112

Intake Air Temperature Circuit Low 
Input

<Ref. to EN(H4DOSTC)-92, DTC P0112 — INTAKE AIR TEMPERATURE 
CIRCUIT LOW INPUT —, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

P0113

Intake Air Temperature Circuit High 
Input

<Ref. to EN(H4DOSTC)-94, DTC P0113 — INTAKE AIR TEMPERATURE 
CIRCUIT HIGH INPUT —, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

P0117

Engine Coolant Temperature Circuit 
Low Input

<Ref. to EN(H4DOSTC)-98, DTC P0117 — ENGINE COOLANT TEMPERA-
TURE CIRCUIT LOW INPUT —, Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).>

P0118

Engine Coolant Temperature Circuit 
High Input

<Ref. to EN(H4DOSTC)-100, DTC P0118 — ENGINE COOLANT TEMPER-
ATURE CIRCUIT HIGH INPUT —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P0122

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

<Ref. to EN(H4DOSTC)-104, DTC P0122 — THROTTLE/PEDAL POSITION 
SENSOR/SWITCH “A” CIRCUIT LOW INPUT —, Diagnostic Procedure with 
Diagnostic Trouble Code (DTC).>

P0123

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

<Ref. to EN(H4DOSTC)-108, DTC P0123 — THROTTLE/PEDAL POSITION 
SENSOR/SWITCH “A” CIRCUIT HIGH INPUT —, Diagnostic Procedure with 
Diagnostic Trouble Code (DTC).>

P0136

O2 Sensor Circuit (Bank 1 Sensor 2)

<Ref. to EN(H4DOSTC)-110, DTC P0136 — O2 SENSOR CIRCUIT (BANK 
1 SENSOR 2) —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P0171

System too Lean (Bank 1)

<Ref. to EN(H4DOSTC)-112, DTC P0171 — SYSTEM TOO LEAN (BANK 1) 
—, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0172

System too Rich (Bank 1)

<Ref. to EN(H4DOSTC)-114, DTC P0172 — SYSTEM TOO RICH (BANK 1) 
—, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0245

Turbo/Super ChargerWastegateSo-
lenoid “A” Low

<Ref. to EN(H4DOSTC)-118, DTC P0245 — TURBO/SUPER CHARGER-
WASTEGATESOLENOID “A” LOW —, Diagnostic Procedure with Diagnos-
tic Trouble Code (DTC).>

EN(H4DOSTC)-63

ENGINE (DIAGNOSTICS)

LIST OF DIAGNOSTIC TROUBLE CODE (DTC)

P0246

Turbo/Super ChargerWastegateSo-
lenoid “A” High

<Ref. to EN(H4DOSTC)-122, DTC P0246 — TURBO/SUPER CHARGER-
WASTEGATESOLENOID “A” HIGH —, Diagnostic Procedure with Diagnos-
tic Trouble Code (DTC).>

P0249

Turbo/Super ChargerWastegateSo-
lenoid “B” Low

<Ref. to EN(H4DOSTC)-124, DTC P0249 — TURBO/SUPER CHARGER-
WASTEGATESOLENOID “B” LOW —, Diagnostic Procedure with Diagnos-
tic Trouble Code (DTC).>

P0250

Turbo/Super ChargerWastegateSo-
lenoid “B” High

<Ref. to EN(H4DOSTC)-128, DTC P0250 — TURBO/SUPER CHARGER-
WASTEGATESOLENOID “B” HIGH —, Diagnostic Procedure with Diagnos-
tic Trouble Code (DTC).>

P0261

Cylinder 1 Injector Circuit Low

<Ref. to EN(H4DOSTC)-130, DTC P0261 — CYLINDER 1 INJECTOR CIR-
CUIT LOW —, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0264

Cylinder 2 Injector Circuit Low

<Ref. to EN(H4DOSTC)-130, DTC P0264 — CYLINDER 2 INJECTOR CIR-
CUIT LOW —, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0267

Cylinder 3 Injector Circuit Low

<Ref. to EN(H4DOSTC)-130, DTC P0267 — CYLINDER 3 INJECTOR CIR-
CUIT LOW —, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0270

Cylinder 4 Injector Circuit Low

<Ref. to EN(H4DOSTC)-132, DTC P0270 — CYLINDER 4 INJECTOR CIR-
CUIT LOW —, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0327

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

<Ref. to EN(H4DOSTC)-136, DTC P0327 — KNOCK SENSOR 1 CIRCUIT 
LOW INPUT (BANK 1 OR SINGLE SENSOR) —, Diagnostic Procedure with 
Diagnostic Trouble Code (DTC).>

P0328

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

<Ref. to EN(H4DOSTC)-138, DTC P0328 — KNOCK SENSOR 1 CIRCUIT 
HIGH INPUT (BANK 1 OR SINGLE SENSOR) —, Diagnostic Procedure with 
Diagnostic Trouble Code (DTC).>

P0335

Crankshaft Position Sensor “A” Cir-
cuit

<Ref. to EN(H4DOSTC)-140, DTC P0335 — CRANKSHAFT POSITION 
SENSOR “A” CIRCUIT —, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

P0340

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

<Ref. to EN(H4DOSTC)-142, DTC P0340 — CAMSHAFT POSITION SEN-
SOR “A” CIRCUIT (BANK 1 OR SINGLE SENSOR)N —, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>

P0350

Ignition Coil Primary/Secondary Cir-
cuit

<Ref. to EN(H4DOSTC)-144, DTC P0350 — IGNITION COIL PRIMARY/
SECONDARY CIRCUIT —, Diagnostic Procedure with Diagnostic Trouble 
Code (DTC).>

P0444

Evaporative Emission Control Sys-
tem Purge Control Valve Circuit 
Open

<Ref. to EN(H4DOSTC)-148, DTC P0444 — EVAPORATIVE EMISSION 
CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT OPEN —, Diag-
nostic Procedure with Diagnostic Trouble Code (DTC).>

P0445

Evaporative Emission Control Sys-
tem Purge Control Valve Circuit 
Shorted

<Ref. to EN(H4DOSTC)-152, DTC P0445 — EVAPORATIVE EMISSION 
CONTROL SYSTEM PURGE CONTROL VALVE CIRCUIT SHORTED —, 
Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0500

Vehicle Speed Sensor

<Ref. to EN(H4DOSTC)-156, DTC P0500 — VEHICLE SPEED SENSOR —
, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0508

Idle Control System Circuit Low

<Ref. to EN(H4DOSTC)-158, DTC P0508 — IDLE CONTROL SYSTEM 
CIRCUIT LOW —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P0509

Idle Control System Circuit High

<Ref. to EN(H4DOSTC)-162, DTC P0509 — IDLE CONTROL SYSTEM 
CIRCUIT HIGH —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P0512

Starter Request Circuit

<Ref. to EN(H4DOSTC)-164, DTC P0512 — STARTER REQUEST CIR-
CUIT —, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0513

Incorrect Immobilizer Key

<Ref. to IM-20, DTC P0153 — INCORRECT IMMOBILIZER KEY (USE OF 
UNREGISTERED KEY) —, Diagnostics Chart with Trouble Code.>

P0562

System Voltage Low

<Ref. to EN(H4DOSTC)-166, DTC P0562 — SYSTEM VOLTAGE LOW —, 
Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P0563

System Voltage High

<Ref. to EN(H4DOSTC)-168, DTC P0563 — SYSTEM VOLTAGE HIGH —, 
Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

DTC

No.

Item

Index

EN(H4DOSTC)-64

ENGINE (DIAGNOSTICS)

LIST OF DIAGNOSTIC TROUBLE CODE (DTC)

P0851

Neutral switch input circuit low 

<Ref. to EN(H4DOSTC)-170, DTC P0851 — NEUTRAL SWITCH INPUT 
CIRCUIT LOW (AT MODEL) —, Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).> and <Ref. to EN(H4DOSTC)-172, DTC P0851 — NEU-
TRAL SWITCH INPUT CIRCUIT LOW (MT MODEL) —, Diagnostic 
Procedure with Diagnostic Trouble Code (DTC).>

P0852

Neutral switch input circuit high

<Ref. to EN(H4DOSTC)-174, DTC P0852 — NEUTRAL SWITCH INPUT 
CIRCUIT HIGH (AT MODEL) —, Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).>
 and<Ref. to EN(H4DOSTC)-178, DTC P0852 — NEUTRAL SWITCH 
INPUT CIRCUIT HIGH (MT MODEL) —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

P1110

Atmospheric Pressure Sensor Circuit 
Malfunction (Low Input)

<Ref. to EN(H4DOSTC)-181, DTC P1110 — ATMOSPHERIC PRESSURE 
SENSOR CIRCUIT MALFUNCTION (LOW INPUT) —, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>

P1111

Atmospheric Pressure Sensor Circuit 
Malfunction (High Input)

<Ref. to EN(H4DOSTC)-182, DTC P1111 — ATMOSPHERIC PRESSURE 
SENSOR CIRCUIT MALFUNCTION (HIGH INPUT) —, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>

P1130

O2 Sensor Circuit (Open) (Bank1 
Sensor1)

<Ref. to EN(H4DOSTC)-184, DTC P1130 — O2 SENSOR CIRCUIT (OPEN) 
(BANK1 SENSOR1) —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P1131

O2 Sensor Circuit (Short) (Bank1 
Sensor1)

<Ref. to EN(H4DOSTC)-186, DTC P1131 — O2 SENSOR CIRCUIT 
(SHORT) (BANK1 SENSOR1) —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P1134

A/F Sensor micro-computer Problem

<Ref. to EN(H4DOSTC)-190, DTC P1134 — A/F SENSOR MICRO-COM-
PUTER PROBLEM —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P1199

Differential Pressure Sensor

<Ref. to EN(H4DOSTC)-192, DTC P1199 — DIFFERENTIAL PRESSURE 
SENSOR —, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P1230

Fuel Pump Controller

<Ref. to EN(H4DOSTC)-194, DTC P1230 — FUEL PUMP CONTROLLER 
—, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>

P1235

Intake Control Solenoid Valve Circuit 
Low

<Ref. to EN(H4DOSTC)-198, DTC P1235 — INTAKE CONTROL SOLE-
NOID VALVE CIRCUIT LOW —, Diagnostic Procedure with Diagnostic Trou-
ble Code (DTC).>

P1236

Intake Control Solenoid Valve Circuit 
High

<Ref. to EN(H4DOSTC)-202, DTC P1236 — INTAKE CONTROL SOLE-
NOID VALVE CIRCUIT HIGH —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P1237

Exhaust Control Valve Solenoid Cir-
cuit Low (Positive Pressure)

<Ref. to EN(H4DOSTC)-204, DTC P1237 — EXHAUST CONTROL VALVE 
SOLENOID CIRCUIT LOW (POSITIVE PRESSURE) —, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>

P1238

Exhaust Control Valve Solenoid Cir-
cuit High (Positive Pressure)

<Ref. to EN(H4DOSTC)-208, DTC P1238 — EXHAUST CONTROL VALVE 
SOLENOID CIRCUIT HIGH (POSITIVE PRESSURE) —, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>

P1239

Exhaust Control Valve Solenoid Cir-
cuit Low (Negative Pressure)

<Ref. to EN(H4DOSTC)-210, DTC P1239 — EXHAUST CONTROL VALVE 
SOLENOID CIRCUIT LOW (NEGATIVE PRESSURE) —, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>

P1240

Exhaust Control Valve Solenoid Cir-
cuit High (Negative Pressure)

<Ref. to EN(H4DOSTC)-214, DTC P1240 — EXHAUST CONTROL VALVE 
SOLENOID CIRCUIT HIGH (NEGATIVE PRESSURE) —, Diagnostic Proce-
dure with Diagnostic Trouble Code (DTC).>

P1241

2Stage Twin TURBO System (Sin-
gle)

<Ref. to EN(H4DOSTC)-216, DTC P1241 — 2STAGE TWIN TURBO SYS-
TEM (SINGLE) —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P1242

2Stage Twin TURBO System (Twin)

<Ref. to EN(H4DOSTC)-218, DTC P1242 — 2STAGE TWIN TURBO SYS-
TEM (TWIN) —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P1247

Relief Valve Control Solenoid Valve 
1 Circuit Low

<Ref. to EN(H4DOSTC)-220, DTC P1247 — RELIEF VALVE CONTROL 
SOLENOID VALVE 1 CIRCUIT LOW —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

DTC

No.

Item

Index

EN(H4DOSTC)-65

ENGINE (DIAGNOSTICS)

LIST OF DIAGNOSTIC TROUBLE CODE (DTC)

P1248

Relief Valve Control Solenoid Valve 
1 Circuit High

<Ref. to EN(H4DOSTC)-224, DTC P1248 — RELIEF VALVE CONTROL 
SOLENOID VALVE 1 CIRCUIT HIGH —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

P1249

Relief Valve Control Solenoid Valve 
2 Circuit Low

<Ref. to EN(H4DOSTC)-226, DTC P1249 — RELIEF VALVE CONTROL 
SOLENOID VALVE 2 CIRCUIT LOW —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

P1250

Relief Valve Control Solenoid Valve 
2 Circuit High

<Ref. to EN(H4DOSTC)-230, DTC P1250 — RELIEF VALVE CONTROL 
SOLENOID VALVE 2 CIRCUIT HIGH —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

P1507

Idle Control System Malfunction 
(Fail-safe)

<Ref. to EN(H4DOSTC)-232, DTC P1507 — IDLE CONTROL SYSTEM 
MALFUNCTION (FAIL-SAFE) —, Diagnostic Procedure with Diagnostic 
Trouble Code (DTC).>

P1518

Starter Switch Circuit Low input

<Ref. to EN(H4DOSTC)-234, DTC P1518 — STARTER SWITCH CIRCUIT 
LOW INPUT —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P1560

Back-up Voltage Circuit Malfunction

<Ref. to EN(H4DOSTC)-236, DTC P1560 — BACK-UP VOLTAGE CIRCUIT 
MALFUNCTION —, Diagnostic Procedure with Diagnostic Trouble Code 
(DTC).>

P1570

Antennna

<Ref. to IM-21, DTC P1570 — Antenna —, Diagnostics Chart with Trouble 
Code.>

P1571

Reference Code Incompatibility

<Ref. to IM-17, DTC P1571 REFERENCE CODE INCOMPATIBILITY, Diag-
nostic Procedure with Trouble Code (DTC).>

P1572

IMM Circuit Failure (Except Antenna 
Circuit)

<Ref. to IM-18, DTC P1572 IMM CIRCUIT FAILURE (EXCEPT ANTENNA 
CIRCUIT), Diagnostic Procedure with Trouble Code (DTC).>

P1574

Key Communication Failure

<Ref. to IM-23, DTC P1574 KEY COMMUNICATION FAILURE, Diagnostic 
Procedure with Trouble Code (DTC).>

P1576

EGI Control Module EEPROM

<Ref. to IM-25, DTC P1576 EGI CONTROL MODULE EEPROM, Diagnostic 
Procedure with Trouble Code (DTC).>

P1577

IMM Control Module EEPROM

<Ref. to IM-25, DTC P1577 IMM CONTROL MODULE EEPROM, Diagnostic 
Procedure with Trouble Code (DTC).>

P1698

Engine Torque Control Cut Signal 
Circuit Malfunction (Low Input)

<Ref. to EN(H4DOSTC)-238, DTC P1698 — ENGINE TORQUE CONTROL 
CUT SIGNAL CIRCUIT MALFUNCTION (LOW INPUT) —, Diagnostic Pro-
cedure with Diagnostic Trouble Code (DTC).>

P1699

Engine Torque Control Cut Signal 
Circuit Malfunction (High Input)

<Ref. to EN(H4DOSTC)-240, DTC P1699 — ENGINE TORQUE CONTROL 
CUT SIGNAL CIRCUIT MALFUNCTION (HIGH INPUT) —, Diagnostic Pro-
cedure with Diagnostic Trouble Code (DTC).>

P1711

Engine Torque Control Signal #1 Cir-
cuit Malfunction

<Ref. to EN(H4DOSTC)-242, DTC P1711 — ENGINE TORQUE CONTROL 
SIGNAL #1 CIRCUIT MALFUNCTION —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

P1712

Engine Torque Control Signal #2 Cir-
cuit Malfunction

<Ref. to EN(H4DOSTC)-244, DTC P1712 — ENGINE TORQUE CONTROL 
SIGNAL #2 CIRCUIT MALFUNCTION —, Diagnostic Procedure with Diag-
nostic Trouble Code (DTC).>

DTC

No.

Item

Index