Engine Controls - Self-Diagnostics - 2.5L
- Introduction
- Self-Diagnostic System
- Programming
- Drive Cycles
- Summary
- Diagnostic Trouble Code Definitions
- Diagnostic Tests
- Notes
- DTC P0031: Front Oxygen Sensor (A/F) Heater Circuit Low Input
- DTC P0032: Front Oxygen Sensor (A/F) Heater Circuit High Input
- DTC P0037: Rear Heated Oxygen Sensor (Ho2S) Heater Circuit Malfunction (Forester, IMPREZA & Outback Sport)
- DTC P0037: Rear Heated Oxygen Sensor (Ho2S) Heater Circuit Low Input (Legacy & Outback)
- DTC P0038: Rear Heated Oxygen Sensor (Ho2S) Heater Circuit High Input
- DTC P0065: Air Assist Injector Solenoid Valve Malfunction
- DTC P0066: Air Assist Injector Solenoid Valve Circuit Low Input
- DTC P0067: Air Assist Injector Solenoid Valve Circuit High Input
- DTC P0106: Pressure Sensor Circuit Range/Performance Problem (Low Input)
- DTC P0107: Pressure Sensor Circuit Low Input
- DTC P0108: Pressure Sensor Circuit High Input
- DTC P0111: Intake Air Temperature (IAT) Sensor Circuit Range/Performance Problem
- DTC P0112: Intake Air Temperature (IAT) Sensor Circuit Low Input
- DTC P0113: Intake Air Temperature (IAT) Sensor Circuit High Input
- DTC P0117: Engine Coolant Temperature (ECT) Sensor Circuit Low Input
- DTC P0118: Engine Coolant Temperature (ECT) Sensor Circuit High Input
- DTC P0121: Throttle Position (TP) Sensor Circuit Range/Performance Problem (High Input)
- DTC P0122: Throttle Position (TP) Sensor Circuit Low Input
- DTC P0123: Throttle Position (TP) Sensor Circuit High Input
- DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0128: Thermostat Malfunction
- DTC P0130: Front Oxygen Sensor (A/F) Circuit Range/Performance Problem (Lean)
- DTC P0131: Front Oxygen Sensor (A/F) Circuit Malfunction (Open Circuit)
- DTC P0132: Front Oxygen Sensor (A/F) Circuit Malfunction (Short Circuit)
- DTC P0133: Front Oxygen Sensor (A/F) Circuit Slow Response
- DTC P0136: Rear Heated Oxygen Sensor (Ho2S) Circuit Malfunction (Forester, IMPREZA & Outback Sport)
- DTC P0137: Rear Heated Oxygen Sensor (Ho2S) Circuit Low Input (Legacy & Outback)
- P0138: Rear Heated Oxygen Sensor (Ho2S) Circuit High Input (Legacy & Outback)
- DTC P0139: Rear Heated Oxygen Sensor (Ho2S) Circuit Slow Response
- DTC P0171: Fuel Trim Malfunction (A/F Too Lean)
- DTC P0172: Fuel Trim Malfunction (A/F Too Rich)
- DTC P0181: Fuel Temperature Sensor "A" Circuit Range/Performance Problem
- DTC P0182: Fuel Temperature Sensor "A" Circuit Low Input
- DTC P0183: Fuel Temperature Sensor "A" Circuit High Input (Forester, IMPREZA & Outback Sport)
- DTC P0183: Fuel Temperature Sensor "A" Circuit High Input (Legacy & Outback)
- DTC P0301, DTC P0302, DTC P0303 Or DTC P0304
- DTC P0327: Knock Sensor (KS) Circuit Low Input
- DTC P0328: Knock Sensor (KS) Circuit High Input
- DTC P0335: Crankshaft Position (CKP) Sensor Circuit Malfunction
- DTC P0336: Crankshaft Position (CKP) Sensor Circuit Range/Performance Problem
- DTC P0340: Camshaft Position (CMP) Sensor Circuit Malfunction
- DTC P0341: Camshaft Position (CMP) Sensor Circuit Range/Performance Problem
- DTC P0420: Catalyst System Efficiency Below Threshold (Forester)
- DTC P0420: Catalyst System Efficiency Below Threshold (IMPREZA, Outback Sport, Legacy & Outback)
- DTC P0442: EVAP System Malfunction
- DTC P0444: EVAP System Purge Control Valve Circuit Low Input (Forester, IMPREZA & Outback Sport)
- DTC P0445: EVAP System Purge Control Valve Circuit High Input (Forester, IMPREZA & Outback Sport)
- DTC P0447: EVAP System Vent Control Circuit Low Input
- DTC P0448: EVAP System Vent Control Circuit High Input
- DTC P0451: EVAP System Pressure Sensor Range/Performance Problem
- DTC P0452: EVAP System Pressure Sensor Low Input (Forester, IMPREZA & Outback Sport)
- DTC P0452: EVAP System Pressure Sensor Low Input (Legacy & Outback)
- DTC P0453: EVAP System Pressure Sensor High Input (Forester, IMPREZA & Outback Sport)
- DTC P0453: EVAP System Pressure Sensor High Input (Legacy & Outback)
- DTC P0456: EVAP System Malfunction
- DTC P0457: EVAP System Malfunction (Legacy & Outback)
- DTC P0458: EVAP System Purge Control Valve Circuit Low Input (Legacy & Outback)
- DTC P0459: EVAP System Purge Control Solenoid Valve Circuit High Input
- DTC P0461: Fuel Level Sensor Circuit Range/Performance Problem (Forester, IMPREZA & Outback Sport)
- DTC P0462: Fuel Level Sensor Circuit Low Input (Forester, IMPREZA & Outback Sport)
- DTC P0462: Fuel Level Sensor Circuit Low Input (Legacy & Outback)
- DTC P0463: Fuel Level Sensor Circuit High Input (Forester, IMPREZA & Outback Sport)
- DTC P0463: Fuel Level Sensor Circuit High Input (Legacy & Outback)
- DTC P0464: Fuel Level Sensor Circuit Intermittent Input (Forester, IMPREZA & Outback Sport)
- DTC P0464: Fuel Level Sensor Circuit Intermittent Input (Legacy & Outback)
- DTC P0480: Cooling Fan Relay No. 1 Circuit Low Input (Forester, IMPREZA & Outback Sport)
- DTC P0483: Cooling Fan Function Problem
- DTC P0500: Vehicle Speed Sensor (VSS) Malfunction (Forester, IMPREZA & Outback Sport)
- DTC P0500: Vehicle Speed Sensor (VSS) Malfunction (Legacy & Outback)
- DTC P0506: Idle Control System Rpm Lower Than Expected
- DTC P0507: Idle Control System Rpm Higher Than Expected
- DTC P0512: Starter Switch Circuit High Input
- DTC P0604: Internal Control Module Memory Check Sum Error
- P0691: Cooling Fan Relay No. 1 Circuit Low Input (Legacy & Outback)
- DTC P0692: Cooling Fan Relay No. 1 Circuit High Input (Legacy & Outback)
- DTC P0703: Brake Switch Input Malfunction (A/T)
- DTC P0731, DTC P0732, DTC P0733 & DTC P0734
- DTC P0741: Torque Converter Clutch System Malfunction (A/T)
- DTC P0851: Inhibitor Switch Circuit Low Input (A/T - Legacy & Outback)
- DTC P0851: Neutral Position Switch Circuit Low Input (M/T - Legacy & Outback)
- DTC P0852: Inhibitor Switch Circuit High Input (A/T - Legacy & Outback)
- DTC P0852: Neutral Position Switch Circuit High Input (M/T - Legacy & Outback)
- DTC P0864: A/T Diagnosis Input Signal Circuit Malfunction (Legacy & Outback)
- DTC P0865: A/T Diagnosis Input Signal Circuit Low Input (Legacy & Outback)
- DTC P0866: A/T Diagnosis Input Signal Circuit High Input (Legacy & Outback)
- DTC P1110: Atmospheric Pressure Sensor Circuit Low Input (Forester, IMPREZA & Outback Sport)
- DTC P1110: Atmospheric Pressure Sensor Circuit Low Input (Legacy & Outback)
- DTC P1111: Atmospheric Pressure Sensor Circuit High Input (Forester, IMPREZA & Outback Sport)
- DTC P1111: Atmospheric Pressure Sensor Circuit High Input (Legacy & Outback)
- DTC P1112: Atmospheric Pressure Sensor Circuit Range/Performance Problem (Forester, IMPREZA & Outback Sport)
- DTC P1112: Atmospheric Pressure Sensor Circuit Range/Performance Problem (Legacy & Outback)
- DTC P1137: Front Oxygen Sensor (A/F) Circuit Range/Performance Problem
- DTC P1142: Throttle Position (TP) Sensor Circuit Range/Performance Problem (Low Input)
- DTC P1146: Pressure Sensor Circuit Range/Performance Problem (High Input)
- DTC P1400: Fuel Tank Pressure Control Solenoid Valve Circuit Low Input
- DTC P1420: Fuel Tank Pressure Control Solenoid Valve Circuit High Input
- DTC P1442: Fuel Level Sensor Circuit Range/Performance Problem 2
- DTC P1443: EVAP System Vent Control Function Problem
- DTC P1446: EVAP System Atmospheric Pressure Solenoid Valve Circuit Low Input (Legacy & Outback)
- DTC P1447: EVAP System Atmospheric Pressure Solenoid Valve Circuit High Input (Legacy & Outback)
- DTC P1448: EVAP System Atmospheric Pressure Solenoid Valve Circuit Range/Performance Problem (Legacy & Outback)
- DTC P1480: Cooling Fan Relay No. 1 Circuit High Input (Forester, IMPREZA & Outback Sport)
- DTC P1507: Idle Control System Malfunction (Fail-Safe)
- DTC P1510, DTC P1512, DTC P1514 & DTC P1516
- DTC P1511, DTC P1513, DTC P1515 & DTC P1517
- DTC P1518: Starter Switch Circuit Low Input
- DTC P1540: Vehicle Speed Sensor (VSS) Malfunction 2
- DTC P1560: Back-Up Voltage Circuit Malfunction
- DTC P1590: Inhibitor Switch Circuit High Input (A/T - Forester, IMPREZA & Outback Sport)
- DTC P1591: Inhibitor Switch Circuit Low Input (A/T - Forester, IMPREZA & Outback Sport)
- DTC P1592: Neutral Position Switch Circuit Malfunction (M/T - Forester, IMPREZA & Outback Sport)
- DTC P1594: A/T Diagnosis Input Signal Circuit Malfunction (Forester, IMPREZA & Outback Sport)
- DTC P1595: A/T Diagnosis Input Signal Circuit Low Input (Forester, IMPREZA & Outback Sport)
- DTC P1596: A/T Diagnosis Input Signal Circuit High Input (Forester, IMPREZA & Outback Sport)
- DTC P1698: Engine Torque Control Cut Signal Circuit Low Input (A/T)
- DTC P1699: Engine Torque Control Cut Signal Circuit High Input (A/T)
- DTC P1701: Cruise Control Set Signal Circuit Malfunction (A/T)
- DTC P1711: Engine Torque Control Signal No. 1 Circuit Malfunction (A/T)
- DTC P1712: Engine Torque Control Signal No. 2 Circuit Malfunction (A/T)