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.
2021 Lexus ES 350 BaseFACTORY OEM SERVICE PROCEDURE
Engine Control System (2GR-FKS) - Diagnostic Codes (02 Of 10)
- SFI System
- DTC P0036-12: HO2S Heater Control Circuit Bank 1 Sensor 2 Circuit Short to Battery; DTC P0036-14: HO2S Heater Control Circuit Bank 1 Sensor 2 Circuit Short to Ground or Open; DTC P0056-12: HO2S Heater Control Bank 2 Sensor 2 Circuit Short to Battery; DTC P0056-14: HO2S Heater Control Bank 2 Sensor 2 Circuit Short to Ground or Open; DTC P0141-18: O2 Sensor Heater Circuit Bank 1 Sensor 2 Circuit Current Below Threshold; DTC P0161-18: O2 Sensor Heater Circuit Bank 2 Sensor 2 Circuit Current Below; DTC P102A-9E: O2 Sensor Heater Performance Bank 1 Sensor 2 Stuck On; DTC P105A-9E: O2 Sensor Heater Performance Bank 2 Sensor 2 Stuck On [08/2021 - ]
- DTC P0087-00: Fuel Rail / System Pressure - Too Low [06/2018 - 08/2021]
- DTC P0087-00: Fuel Rail / System Pressure - Too Low [08/2021 - ]
- DTC P0088-00: Fuel Rail / System Pressure - Too High [06/2018 - 08/2021]
- DTC P0088-00: Fuel Rail / System Pressure - Too High [08/2021 - ]
- DTC P008A-00: Low Pressure Fuel System Pressure - Too Low [06/2018 - 07/2019]
- DTC P008A-00: Low Pressure Fuel System Pressure - Too Low [07/2019 - 08/2021]
- DTC P008A-00: Low Pressure Fuel System Pressure - Too Low [08/2021 - ]
- DTC P008B-00: Low Pressure Fuel System Pressure - Too High [06/2018 - 07/2019]
- DTC P008B-00: Low Pressure Fuel System Pressure - Too High [07/2019 - 08/2021]
- DTC P008B-00: Low Pressure Fuel System Pressure - Too High [08/2021 - ]
- DTC P00FE-00: EVAP System Tank Vapor Line Restricted/Blocked [06/2018 - 08/2021]
- DTC P00FE-00: EVAP System Tank Vapor Line Restricted/Blocked [08/2021 - ]
- DTC P0100-12: Mass or Volume Air Flow Sensor "A" Circuit Short to Battery; DTC P0100-14: Mass or Volume Air Flow Sensor "A" Circuit Short to Ground or Open [06/2018 - 08/2021]
- DTC P0100-12: Mass or Volume Air Flow Sensor "A" Circuit Short to Battery; DTC P0100-14: Mass or Volume Air Flow Sensor "A" Circuit Short to Ground or Open [08/2021 - ]
- DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [06/2018 - 08/2021]
- DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [08/2021 - ]
- DTC P0110-11: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground [06/2018 - 08/2021]
- DTC P0110-11: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground [08/2021 - ]
- DTC P0110-15: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open [06/2018 - 08/2021]
- DTC P0110-15: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open [08/2021 - ]
- DTC P0110-2A: Intake Air Temperature Sensor 1 Bank 1 Signal Stuck in Range [06/2018 - 08/2021]
- DTC P0110-2A: Intake Air Temperature Sensor 1 Bank 1 Signal Stuck in Range [08/2021 - ]
- DTC P0115-11: Engine Coolant Temperature Sensor 1 Circuit Short to Ground [06/2018 - 08/2021]
- DTC P0115-11: Engine Coolant Temperature Sensor 1 Circuit Short to Ground [08/2021 - ]
- DTC P0115-15: Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open [06/2018 - 08/2021]
- DTC P0115-15: Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open [08/2021 - ]
- DTC P0115-2A: Engine Coolant Temperature Sensor 1 Signal Stuck in Range [06/2018 - 08/2021]
- DTC P0115-2A: Engine Coolant Temperature Sensor 1 Signal Stuck in Range [08/2021 - ]
- DTC P011B-62: Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure [06/2018 - 08/2021]
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.