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.
2018 Subaru BRZ Limited, Automatic TransFACTORY OEM SERVICE PROCEDURE
Engine Control System (Diagnostics) (1 Of 3)
- EFI System (FA20)
- DTC P000A: A Camshaft Position Slow Response (Bank 1); DTC P000C: A Camshaft Position Slow Response (Bank 2); DTC P0011: Camshaft Position "A" - Timing Over-Advanced or System Performance (Bank 1); DTC P0021: Camshaft Position "A" - Timing Over-Advanced Or System Performance (Bank 2)
- DTC P000B: B Camshaft Position Slow Response (Bank 1); DTC P000D: B Camshaft Position Slow Response (Bank 2); DTC P0014: Camshaft Position "B" - Timing Over-Advanced or System Performance (Bank 1); DTC P0024: Camshaft Position "B" - Timing Over-Advanced Or System Performance (Bank 2)
- DTC P0010: A Camshaft Position Actuator Circuit/Open (Bank 1); DTC P0020: A Camshaft Position Actuator Circuit/Open (Bank 2)
- DTC P0013: B Camshaft Position - Actuator Circuit/Open (Bank 1); DTC P0023: B Camshaft Position - Actuator Circuit/Open (Bank 2)
- DTC P0016: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A); DTC P0017: Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B); DTC P0018: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A); DTC P0019: Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
- DTC P0030: Oxygen Sensor Heater Control Circuit (Bank 1 Sensor 1); DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1); DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
- DTC P0037: Oxygen Sensor Heater Control Circuit Low (Bank 1 Sensor 2); DTC P0038: Oxygen Sensor Heater Control Circuit High (Bank 1 Sensor 2); DTC P0141: Oxygen Sensor Heater Circuit (Bank 1 Sensor 2)
- DTC P0068: Manifold Pressure Sensor Range/Performance
- DTC P0071: Ambient Air Temperature Sensor Circuit "A" Range/Performance
- DTC P0072: Ambient Air Temperature Sensor Circuit "A" Low
- DTC P0073: Ambient Air Temperature Sensor Circuit "A" High
- DTC P0087: Fuel Rail/System Pressure - Too Low
- DTC P0088: Fuel Rail/System Pressure - Too High
- DTC P0101: Air Flow Sensor Characteristic
- DTC P0102: Mass Air Flow Circuit Low; DTC P0103: Mass Air Flow Circuit High
- DTC P0107: Manifold Absolute Pressure/Barometric Pressure Circuit Low Input; DTC P0108: Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- DTC P0111: Intake Temperature Sensor Characteristic
- DTC P0112: Intake Air Temperature Circuit Low Input; DTC P0113: Intake Air Temperature Circuit High Input
- DTC P0116: Engine Coolant Temp. Sensor Circuit Range/Performance
- DTC P0117: Engine Coolant Temperature Circuit Low Input; DTC P0118: Engine Coolant Temperature Circuit High Input
- DTC P0122: Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input; DTC P0123: Throttle/Pedal Position Sensor/Switch "A" Circuit High Input; DTC P0222: Sub-throttle sensor circuit Low; DTC P0223: Throttle/Pedal Position Sensor/Switch "B" Circuit High Input; DTC P2135: Throttle sensor characteristic
- DTC P0125: Insufficient Coolant Temperature For Closed Loop Fuel Control
- DTC P0128: Thermostat (Characteristic)
- DTC P0131: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 1); DTC P0132: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 1); DTC P0134: Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1)
- DTC P0137: Oxygen Sensor Circuit Low Voltage (Bank 1 Sensor 2)
- DTC P0138: Oxygen Sensor Circuit High Voltage (Bank 1 Sensor 2)
- DTC P013A: O2 Sensor Slow Response - Rich To Lean (Bank 1 Sensor 2); DTC P013B: O2 Sensor Slow Response - Lean To Rich (Bank 1 Sensor 2); DTC P013E: O2 Sensor Delayed Response - Rich To Lean (Bank 1 Sensor 2); DTC P013F: O2 Sensor Delayed Response - Lean To Rich (Bank 1 Sensor 2)
- DTC P014C: O2 Sensor Slow Response - Rich To Lean (Bank 1 Sensor 1); DTC P014D: O2 Sensor Slow Response - Lean To Rich (Bank 1 Sensor 1); DTC P015A: O2 Sensor Delayed Response - Rich to Lean (Bank 1 Sensor 1); DTC P015B: O2 Sensor Delayed Response - Lean to Rich (Bank 1 Sensor 1)
- DTC P0171: System Too Lean (Bank 1); DTC P0172: System Too Rich (Bank 1); DTC P1170: Fuel System Abnormal (Port); DTC P117B: Fuel System Abnormal (DI)
- DTC P0191: Fuel Rail Pressure Sensor "A" Circuit Range/Performance
- DTC P0192: Fuel Rail Pressure Sensor Circuit Low Input
- DTC P0193: Fuel Rail Pressure Sensor Circuit High Input
- DTC P1192: Fuel Rail Pressure Sensor "B" Circuit Low
- DTC P1193: Fuel Rail Pressure Sensor "B" Circuit High
- DTC P0196: Engine Oil Temperature Sensor Range/Performance
- DTC P0197: Engine Oil Temperature Sensor Low; DTC P0198: Engine Oil Temperature Sensor High
- DTC P0201: Injector Circuit / Open - (Cylinder 1); DTC P0202: Injector Circuit / Open - (Cylinder 2) DTC P0203: Injector Circuit / Open - (Cylinder 3) DTC P0204: Injector Circuit / Open - (Cylinder 4)
- DTC P0230: Fuel Pump Primary Circuit
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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