Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2015 Subaru Outback 2.5iFACTORY OEM SERVICE PROCEDURE
Drive Cycle C
| DTC | Item | Condition |
|---|---|---|
| P000A | A Camshaft Position Slow Response (Bank 1) | - |
| P000C | A Camshaft Position Slow Response (Bank 2) | - |
| P0011 | Intake Camshaft Position - Timing Over-Advanced or System Performance (Bank 1) | - |
| P0021 | Intake Camshaft Position - Timing Over-Advanced or System Performance (Bank 2) | - |
| P0030 | HO2S Heater Control Circuit (Bank 1 Sensor 1) | - |
| P0068 | MAP/MAF - Throttle Position Correlation | - |
| P0101 | Mass or Volume Air Flow Circuit Range/Performance | - |
| P0134 | O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1) | - |
| P013A | O2 Sensor Slow Response - Rich to Lean (Bank 1 Sensor 2) | - |
| P013B | O2 Sensor Slow Response - Lean to Rich (Bank 1 Sensor 2) | - |
| P013E | O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 2) | - |
| P013F | O2 Sensor Delayed Response - Lean to Rich (Bank 1 Sensor 2) | - |
| P0171 | System Too Lean (Bank 1) | Complete diagnosis with drive cycle A or B as well. |
| P0172 | System Too Rich (Bank 1) | Complete diagnosis with drive cycle A or B as well. |
| P0300 | Random/Multiple Cylinder Misfire Detected | Complete diagnosis with drive cycle A or B as well. |
| P0301 | Cylinder 1 Misfire Detected | Complete diagnosis with drive cycle A or B as well. |
| P0302 | Cylinder 2 Misfire Detected | Complete diagnosis with drive cycle A or B as well. |
| P0303 | Cylinder 3 Misfire Detected | Complete diagnosis with drive cycle A or B as well. |
| P0304 | Cylinder 4 Misfire Detected | Complete diagnosis with drive cycle A or B as well. |
| P0400 | Exhaust Gas Recirculation Flow | - |
| P0441 | Evaporative Emission Cont. Sys. Incorrect Purge Flow | - |
| P0851 | Park/Neutral Switch Input Circuit Low | - |
| P0852 | Park/Neutral Switch Input Circuit High | - |
| P1449 | Evaporative Emission Cont. Sys. Air Filter Clog | - |
| 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) | - |
| P2004 | Intake Manifold Runner Control Stuck Open (Bank 1) | - |
| P2005 | Intake Manifold Runner Control Stuck Open (Bank 2) | - |
| P2096 | Post Catalyst Fuel Trim System Too Lean (Bank 1) | Complete diagnosis with drive cycle A or B as well. |
| P2097 | Post Catalyst Fuel Trim System Too Rich (Bank 1) | Complete diagnosis with drive cycle A or B as well. |
| P219C | Cylinder 1 Air-Fuel Ratio Imbalance | - |
| P219D | Cylinder 2 Air-Fuel Ratio Imbalance | - |
| P219E | Cylinder 3 Air-Fuel Ratio Imbalance | - |
| P219F | Cylinder 4 Air-Fuel Ratio Imbalance | - |
Diagnostic procedure:
- Drive according to the drive pattern described below.
- Read the temporary code using the Subaru Select Monitor or general scan tool. <Ref. to
OPERATION , Read Diagnostic Trouble Code (DTC).>NOTE: After driving, use the Subaru Select Monitor to check that "Imbalance Check 3 R" indicates "1" and read the temporary code. If "Imbalance Check 3 R" indicates "0", the diagnosis has not been completed. In this case, repeat driving until the reading is "1".
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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