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 B
| DTC | Item | Condition |
|---|---|---|
| P0125 | Insufficient Coolant Temperature for Closed Loop Fuel Control | «Coolant Temp.» at engine start: Less than -15°C (5°F) |
| P0137 | O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2) | - |
| P0138 | O2 Sensor Circuit High Voltage (Bank 1 Sensor 2) | - |
| P0171 | System Too Lean (Bank 1) | Complete diagnosis with drive cycle A or C as well. |
| P0172 | System Too Rich (Bank 1) | Complete diagnosis with drive cycle A or C as well. |
| P0300 | Random/Multiple Cylinder Misfire Detected | Complete diagnosis with drive cycle A or C as well. |
| P0301 | Cylinder 1 Misfire Detected | Complete diagnosis with drive cycle A or C as well. |
| P0302 | Cylinder 2 Misfire Detected | Complete diagnosis with drive cycle A or C as well. |
| P0303 | Cylinder 3 Misfire Detected | Complete diagnosis with drive cycle A or C as well. |
| P0304 | Cylinder 4 Misfire Detected | Complete diagnosis with drive cycle A or C as well. |
| P0500 | Vehicle Speed Sensor "A" | - |
| P0506 | Idle Air Control System RPM Lower Than Expected | - |
| P0507 | Idle Air Control System RPM Higher Than Expected | - |
| P059A | Active Grille Shutter "A" Position Sensor Circuit | «Ambient Temperature»: 3 - 33°C (37.4 - 91.4°F) |
| P059F | Active Grille Shutter "A" Performance | |
| P05A0 | Active Grille Shutter "A" Stuck | |
| P05A1 | Active Grille Shutter "A" Range Over | |
| P05A2 | Active Grille Shutter "A" Control Circuit | |
| P05A6 | Active Grille Shutter "A" Supply Voltage Circuit/Open | |
| P05C0 | Active Grille Shutter "A" Over Temperature | |
| P0700 | Transmission Control System (MIL Request) | - |
| P2006 | Intake Manifold Runner Control Stuck Closed (Bank 1) | - |
| P2007 | Intake Manifold Runner Control Stuck Closed (Bank 2) | - |
| P2096 | Post Catalyst Fuel Trim System Too Lean (Bank 1) | Complete diagnosis with drive cycle A or C as well. |
| P2097 | Post Catalyst Fuel Trim System Too Rich (Bank 1) | Complete diagnosis with drive cycle A or C as well. |
| P2158 | Vehicle Speed Sensor "B" | - |
Diagnostic procedure:
- Drive at 10 km/h (6 MPH) or more.
- Stop the vehicle and idle for ten minutes.
- Read the temporary code using the Subaru Select Monitor or general scan tool. <Ref. to OPERATION , Read Diagnostic Trouble Code (DTC).>
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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