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Subaru Impreza Fault Codes

You can find common Subaru Impreza fault codes on this page that when clicked take you to a detailed description.

You can also type in the fault code you are getting below to find a more detailed description.

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Subaru Impreza Recalls

When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.

You can check to see if your Subaru Impreza has any recall notices on our sister site AutoRecalls.co, sorted by model year.

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Common Impreza Fault Codes

These are the most common Impreza fault codes that people are searching for.

Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Severity Icon 9/10

Error Icon P0700

Transmission Control System Malfunction

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Severity Icon 5/10

Error Icon P0172

System Too Rich (Bank 1)

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Error Icon P0028

Intake Valve Control Solenoid Circuit Range/Performance (Bank 2)

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Severity Icon 8/10

Error Icon P0304

Cylinder 4 Misfire Detected

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Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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Error Icon P0500

Vehicle Speed Sensor Malfunction

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Severity Icon 8/10

Error Icon P0303

Cylinder 3 Misfire Detected

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Severity Icon 8/10

Error Icon P0021

Intake Camshaft Position Timing - Over-Advanced (Bank 2)

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Severity Icon 6/10

Error Icon P0026

Intake Valve Control Solenoid Circuit Range/Performance (Bank 2)

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Severity Icon 3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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Error Icon P0971

Pressure Control Solenoid C Control Circuit High

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Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Error Icon P0024

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

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Error Icon P0037

Heated Oxygen Sensor (HO2S) Heater Circuit Low Voltage Bank 1 Sensor 2

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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Severity Icon 8/10

Error Icon P0607

Control Module Performance

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Error Icon P0108

Manifold Absolute Pressure/Barometric Pressure Circuit High Input

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Severity Icon 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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Error Icon P0890

TCM Power Relay Sense Circuit Low

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Error Icon P1518

Intake Manifold Runner Control (Stuck Open)

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Severity Icon 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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Error Icon B1608

Illuminated Entry Input Open Circuit

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Severity Icon 9/10

Error Icon P0011

Intake Camshaft Position Timing - Over-Advanced (Bank 1)

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Error Icon P1449

Evaporative Check Solenoid Circuit Malfunction

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Severity Icon 7/10

Error Icon P2096

Post Catalyst Fuel Trim System Too Lean Bank 1

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Error Icon P0018

Crankshaft Position Camshaft Position Correlation Bank 2 Sensor A

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Error Icon U0140

Lost Communication With Body Control Module

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Severity Icon 9/10

Error Icon U0073

Control Module Communication Bus "A" Off

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Error Icon U1221

SCP (J1850) Invalid or Missing Data for Interior Lamp Outage

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Error Icon U1201

SCP (J1850) Invalid or Missing Data for Seat Motion / Control

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Error Icon P1604

Code Word Unregestered

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Error Icon P1443

Evaporative Emission System Control Valve Low/No Flow

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Error Icon P1507

Idle Air Control Underspeed Error

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Error Icon P1153

HO2S Insufficient Switching Bank 2 Sensor 1

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Error Icon P1718

TFT Sensor In Range Failure High

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Error Icon P1491

Exhaust Gas Recirculation Valve Insufficient Lift

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Error Icon P1710

Transmission control valve solenoids -ground circuit malfunction

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Error Icon P1603

EEPROM Malfunction

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Severity Icon 7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 9/10

Error Icon P0012

Intake Camshaft Position Timing - Over-Retarded (Bank 1)

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Severity Icon 7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 8/10

Error Icon P0014

Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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Severity Icon 8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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Severity Icon 4/10

Error Icon P0036

Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2

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Severity Icon 4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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Severity Icon 8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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Severity Icon 4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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Severity Icon 6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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Severity Icon 7/10

Error Icon P0134

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

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Severity Icon 6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Severity Icon 4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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Severity Icon 5/10

Error Icon P0175

System Too Rich (Bank 2)

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Severity Icon 8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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Severity Icon 8/10

Error Icon P0305

Cylinder 5 Misfire Detected

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Severity Icon 8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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Severity Icon 3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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Severity Icon 8/10

Error Icon P0332

Knock Sensor 2 Circuit Low Input (Bank 2)

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Severity Icon 8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

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Severity Icon 6/10

Error Icon P0341

Camshaft Position Sensor Circuit Range/Performance

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Severity Icon 7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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Severity Icon 4/10

Error Icon P0449

Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

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Severity Icon 5/10

Error Icon P0463

Fuel Level Sensor Circuit High Input

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Severity Icon 3/10

Error Icon P0496

Evaporative Emission System High Purge Flow

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Severity Icon 3/10

Error Icon P0507

Idle Control System RPM higher Than Expected

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Severity Icon 6/10

Error Icon P2097

Post Catalyst Fuel Trim System Too Rich Bank 1

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Severity Icon 9/10

Error Icon P2135

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

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Severity Icon 9/10

Error Icon P2138

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

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About the Impreza