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 3.6R LimitedFACTORY OEM SERVICE PROCEDURE
Engine Control System (Diagnostics) (H6DO) (3 Of 3)
- DTC P1604 STARTABILITY Malfunction
- DTC P1C00 Battery Monitor Module "A"
- DTC P2096 Post Catalyst Fuel Trim System Too Lean (Bank 1)
- DTC P2097 Post Catalyst Fuel Trim System Too Rich (Bank 1)
- DTC P2098 Post Catalyst Fuel Trim System Too Lean Bank 2
- DTC P2099 Post Catalyst Fuel Trim System Too Rich Bank 2
- DTC P2101 Throttle Actuator Control Motor Circuit Range/Performance
- DTC P2102 Throttle Actuator Control Motor Circuit Low
- DTC P2103 Throttle Actuator Control Motor Circuit High
- DTC P2109 Throttle/Pedal Position Sensor "A" Minimum Stop Performance
- DTC P2119 Throttle Actuator Control Throttle Body Range/Performance
- DTC P2122 Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input
- DTC P2123 Throttle/Pedal Position Sensor/Switch "D" Circuit High Input
- DTC P2127 Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input
- DTC P2128 Throttle/Pedal Position Sensor/Switch "E" Circuit High Input
- DTC P2135 Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correlation
- DTC P2138 Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation
- DTC P2158 Vehicle Speed Sensor "B"
- DTC P2195 O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1)
- DTC P2196 O2 Sensor Signal Biased/Stuck Rich (Bank 1 Sensor 1)
- DTC P2197 O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 1)
- DTC P2198 O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 1)
- DTC P219A Bank 1 Air-Fuel Ratio Imbalance
- DTC P219B Bank 2 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 P2272 O2 Sensor Signal Biased/Stuck Lean (Bank 2 Sensor 2)
- DTC P2273 O2 Sensor Signal Biased/Stuck Rich (Bank 2 Sensor 2)
- DTC P2401 Evaporative Emission System Leak Detection Pump Control Circuit Low
- DTC P2402 Evaporative Emission System Leak Detection Pump Control Circuit High
- DTC P2404 Evaporative Emission System Leak Detection Pump Sense Circuit Range/Performance
- DTC P2419 Evaporative Emission System Switching Valve Control Circuit Low
- DTC P2420 Evaporative Emission System Switching Valve Control Circuit High
- DTC P2530 Ignition Switch Run Position Circuit
- DTC P2610 ECM/Pcm Internal Engine Off Timer Performance
- DTC U0073 Can Failure, Bus 'OFF' Detection
- DTC U0077 Lin Communication Bus "ECM/Pcm" Off
- DTC U0101 Can (TCU) Data Not Loaded
- DTC U0122 Can (VDC) Data Not Loaded
- DTC U0155 Lost Communication With Instrument Panel Cluster (IPC) Control Module
- DTC U0402 Can (TCU) Data Abnormal
- DTC U0416 Can (VDC) Data Abnormal
- DTC U0423 Invalid Data Received From Instrument Panel Cluster Control Module
- DTC U1712 Lost Lin Communication With Battery "1" Monitor Module
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.