Subaru Outback — OBD2 codes & common problems
Look up any check-engine / OBD2 code for the Subaru Outback and get a diagnosis tuned to its known failure patterns, TSBs, and NHTSA recalls. Pick your model year on any code page below.
Wagon 24 NHTSA recalls on record 1,651 owner complaints
See the full Subaru Outback recalls & common problems breakdown — most-reported systems and recalls by model year.
Subaru Outback engines by model year
- 2012: 2.5L 4-cylinder and 3.6L 6-cylinder
- 2017: 2.5L 4-cylinder and 3.6L 6-cylinder
- 2022: 2.4L 4-cylinder and 2.5L 4-cylinder
Engine data: EPA fueleconomy.gov. Lineups change year to year — check your own vehicle before ordering parts.
Diagnostic codes for the Subaru Outback
- P0011 — Intake Cam Over-Advanced (Bank 1, VVT)
- P0012 — Intake Cam Over-Retarded (Bank 1, VVT)
- P0013 — Exhaust Cam Actuator Circuit Fault (Bank 1)
- P0014 — Exhaust Cam Over-Advanced (Bank 1, VVT)
- P0015 — Exhaust Cam Over-Retarded (Bank 1, VVT)
- P0016 — Crank/Cam Correlation Fault (Bank 1 Intake)
- P0017 — Crank/Cam Correlation (Bank 1 Exhaust)
- P0019 — Crank/Cam Correlation (Bank 2 Exhaust)
- P0024 — Exhaust Cam Over-Advanced (Bank 2, VVT)
- P0101 — MAF Sensor Range / Performance
- P0102 — MAF Sensor Low Input
- P0113 — Intake Air Temperature High Input
- P0118 — Coolant Temp Sensor High Input
- P0121 — Throttle Position Sensor Range / Performance
- P0125 — Coolant Too Cold for Closed-Loop Fuel Control
- P0128 — Engine Not Reaching Operating Temperature
- P0131 — O2 Sensor Low Voltage (Bank 1 Upstream)
- P0133 — O2 Sensor Slow Response (Bank 1 Upstream)
- P0135 — O2 Sensor Heater Circuit (Bank 1 Upstream)
- P0136 — Post-Cat O2 Sensor Circuit Fault (Bank 1)
- P0137 — Post-Cat O2 Sensor Low Voltage (Bank 1 Downstream)
- P0138 — Post-Cat O2 Sensor High Voltage (Bank 1 Downstream)
- P0140 — Post-Cat O2 Sensor No Activity (Bank 1 Downstream)
- P0141 — Post-Cat O2 Heater Circuit (Bank 1 Downstream)
- P0156 — Post-Cat O2 Sensor Circuit Fault (Bank 2)
- P0157 — Post-Cat O2 Sensor Low Voltage (Bank 2 Downstream)
- P0171 — Fuel System Too Lean (Bank 1)
- P0172 — Fuel System Too Rich (Bank 1)
- P0174 — Fuel System Too Lean (Bank 2)
- P0300 — Random or Multiple Cylinder Misfire
- P0301 — Cylinder 1 Misfire
- P0325 — Knock Sensor 1 Circuit Fault
- P0335 — Crankshaft Position Sensor Circuit Fault
- P0340 — Camshaft Position Sensor Circuit Fault
- P0341 — Camshaft Position Sensor Range / Performance
- P0342 — Cam Position Sensor Low Input (Bank 1)
- P0343 — Cam Position Sensor High Input (Bank 1)
- P0345 — Camshaft Position Sensor Circuit (Bank 2)
- P0401 — EGR Flow Insufficient
- P0411 — Secondary Air Injection Insufficient Flow
- P0420 — Catalyst Efficiency Below Threshold
- P0430 — Catalyst Efficiency Below Threshold (Bank 2)
- P0440 — EVAP System Malfunction (Generic)
- P0441 — EVAP Incorrect Purge Flow
- P0442 — EVAP Small Leak Detected
- P0443 — EVAP Purge Valve Circuit Fault
- P0446 — EVAP Vent Control Circuit Fault
- P0455 — EVAP Large or Gross Leak Detected
- P0456 — EVAP Very Small Leak Detected
- P0496 — EVAP High Purge Flow / Stuck-Open Purge Valve
- P0497 — EVAP Low Purge Flow
- P0500 — Vehicle Speed Sensor Malfunction
- P0507 — Idle Higher Than Expected
- P0521 — Oil Pressure Sensor Range / Performance
- P0606 — PCM Internal Processor Fault
- P0700 — Transmission Control System Malfunction
- P0720 — Transmission Output Speed Sensor Malfunction
- P0740 — Torque Converter Clutch Circuit Fault
- P0741 — Torque Converter Clutch Stuck Off
- P0743 — Torque Converter Clutch Circuit Electrical Fault
- P0750 — Shift Solenoid A Malfunction
- P0846 — Trans Fluid Pressure Sensor B Range / Performance
- P2096 — Post-Cat Trim Lean (Bank 1)
- P2187 — System Too Lean at Idle (Bank 1)
- P2270 — Post-Cat O2 Stuck Lean (Bank 1 Downstream)
Diagnose by model year
Jump to popular codes for the model year that matches your Outback:
- 2012 Subaru Outback: P0420, P0300, P0171, P0455, P0700
- 2017 Subaru Outback: P0420, P0300, P0171, P0455, P0700
- 2022 Subaru Outback: P0420, P0300, P0171, P0455, P0700
Other vehicles
Common codes, recalls, and problems for similar vehicles: