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.
2020 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Section 17 (Engine Control System (Diagnostics) (2.4L) (3 Of 4))
WARNING: This page is about a different variant/trim than selected.
- Diagnostic Procedure with Diagnostic Trouble Code (DTC)
- DTC P0700: Transmission Control System (Mil Request)
- DTC P081A: Starter Disable Circuit Low
- DTC P0851: Park/Neutral Switch Input Circuit Low
- DTC P0852: Park/Neutral Switch Input Circuit High
- DTC P0A3B: Generator/Alternator Over Temperature
- DTC P1134: A/F/O2 Sensor Bank1 Sensor1 Serial Peripheral Interface (SPI) Communication
- DTC P1160: Throttle Return Spring
- DTC P1192: Fuel Rail Pressure Sensor "B" Circuit Low
- DTC P1193: Fuel Rail Pressure Sensor "B" Circuit High
- DTC P1261: Cylinder 1 Direct Fuel Injector Circuit/Open
- DTC P1262: Cylinder 2 Direct Fuel Injector Circuit/Open
- DTC P1263: Cylinder 3 Direct Fuel Injector Circuit/Open
- DTC P1264: Cylinder 4 Direct Fuel Injector Circuit/Open
- DTC P1378: Pre-Ignition Detected
- DTC P1449: EVAP System Clog Detected (Air Filter)
- DTC P1451: EVAP System Clog Detected (Pipe)
- DTC P1492: Coil 1 EGR "A" Control Circuit Low
- DTC P1493: Coil 1 EGR "A" Control Circuit High
- DTC P1494: Coil 2 EGR "A" Control Circuit Low
- DTC P1495: Coil 2 EGR "A" Control Circuit High
- DTC P1496: Coil 3 EGR "A" Control Circuit Low
- DTC P1497: Coil 3 EGR "A" Control Circuit High
- DTC P1498: Coil 4 EGR "A" Control Circuit Low
- DTC P1499: Coil 4 EGR "A" Control Circuit High
- DTC P1603: Engine Stall History
- DTC P1604: STARTABILITY Malfunction
- DTC P162A: Starter Interlock Internal Circuit
- DTC P1C00: Battery Monitor Module "A" Performance
- DTC P2004: TGV Control Stuck Open Bank 1
- DTC P2005: TGV Control Stuck Open Bank 2
- DTC P2006: TGV Control Stuck Closed Bank 1
- DTC P2007: TGV Control Stuck Closed Bank 2
- DTC P2009: TGV Control Circuit Low Bank 1
- DTC P2012: TGV Control Circuit Low Bank 2
- DTC P2016: TGV Position Sensor/Switch Circuit Low Bank 1
- DTC P2017: TGV Position Sensor/Switch Circuit High Bank 1
- DTC P2021: TGV Position Sensor/Switch Circuit Low Bank 2
- DTC P2022: TGV Position Sensor/Switch Circuit High Bank 2
- DTC P2096: Post Catalyst Fuel Trim System Too Lean Bank 1
- DTC P2097: Post Catalyst Fuel Trim System Too Rich Bank 1
Factory Service Tools
Use the Manual With the Right Hardware
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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.