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.
2022 Subaru Outback BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System (2.5L) (Diagnostics) (4 Of 4)
- Diagnostic Procedure With Diagnostic Trouble Code (DTC)
- DTC P2101: Throttle Actuator "A" Control Motor Circuit Range/Performance
- DTC P2102: Throttle Actuator "A" Control Motor Circuit Low
- DTC P2103: Throttle Actuator "A" Control Motor Circuit High
- DTC P2109: Throttle/Pedal Position Sensor "A" Minimum Stop Performance
- DTC P2119: Throttle Actuator "A" Control Throttle Body Range/Performance
- DTC P2122: Throttle/Pedal Position Sensor/Switch "D" Circuit Low
- DTC P2123: Throttle/Pedal Position Sensor/Switch "D" Circuit High
- DTC P2127: Throttle/Pedal Position Sensor/Switch "E" Circuit Low
- DTC P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High
- DTC P2135: Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation
- DTC P2138: Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation
- DTC P2183: Engine Coolant Temperature Sensor 2 Circuit Range/Performance
- DTC P2184: Engine Coolant Temperature Sensor 2 Circuit Low
- DTC P2185: Engine Coolant Temperature Sensor 2 Circuit High
- DTC P2195: A/F/O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1
- DTC P2196: A/F/O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1
- DTC P219C: Cylinder 1 Air-Fuel Ratio Imbalance
- DTC P219D: Cylinder 2 Air-Fuel Ratio Imbalance
- DTC P219E: Cylinder 3 Air-Fuel Ratio Imbalance
- DTC P219F: Cylinder 4 Air-Fuel Ratio Imbalance
- DTC P2270: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2
- DTC P2271: O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 2
- DTC P2401: EVAP System Leak Detection Pump Control Circuit Low
- DTC P2402: EVAP System Leak Detection Pump Control Circuit High
- DTC P2404: EVAP System Leak Detection Pump Sense Circuit Range/Performance
- DTC P2419: EVAP System Switching Valve Control Circuit Low
- DTC P2420: EVAP System Switching Valve Control Circuit High
- DTC P24B9: EVAP System Leak Detection Pump Pressure Sensor Circuit Range/Performance
- DTC P24BA: EVAP System Leak Detection Pump Pressure Sensor Circuit Low
- DTC P24BB: EVAP System Leak Detection Pump Pressure Sensor Circuit High
- DTC P2530: Ignition Switch Run Position Circuit
- DTC P2610: ECM/Pcm Engine Off Timer Performance
- DTC P2682: Engine Coolant Bypass Valve "A" Control Circuit Low
- DTC P26A3: Engine Coolant Bypass Valve "A" Range/Performance
- DTC P26A5: Engine Coolant Bypass Valve "A" Position Sensor Circuit Range/Performance
- DTC P26A6: Engine Coolant Bypass Valve "A" Position Sensor Circuit Low
- DTC P26A7: Engine Coolant Bypass Valve "A" Position Sensor Circuit High
- DTC U0073: Control Module Communication Bus Off
- DTC U0077: Lin Communication Bus "ECM/Pcm" Off
- DTC U007B: Control Module Communication Bus "I" Off
- DTC U0101: Lost Communication With TCM
- DTC U0122: Lost Communication With Vehicle Dynamics Control Module
- DTC U0155: Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0284: Lost Communication With Active Grille Shutter Module "A"
- DTC U0402: Invalid Data Received From TCM
- DTC U0416: Invalid Data Received From Vehicle Dynamics Control Module
- DTC U0423: Invalid Data Received From Instrument Panel Cluster Control Module
- DTC U1712: Lost Lin Communication With Battery "1" Monitor Module
- DTC U171F: Lost Lin Communication With Generator
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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