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.
2017 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System (Diagnostics) (P0700 To P2097) (2.0L)
- 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 P1134 A/F/O2 Sensor Bank1 Sensor1 Serial Peripheral Interface (SPI) Communication
- DTC P1160 Throttle Return Spring
- DTC P1191 Fuel Rail Pressure Sensor "A" Circuit No Activity Detected
- 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 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 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.
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