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 LC 500hFACTORY OEM SERVICE PROCEDURE
Engine Control System - Diagnostic Codes (2 Of 9)
- SFI System
- DTC P008B-00: Low Pressure Fuel System Pressure - Too High [04/2020 - ]
- DTC P00D5-62: A/F (O2) Sensor Correlation Bank 1 Sensor 1/Bank 1 Sensor 2 Signal Compare Failure; DTC P00D6-62: A/F (O2) Sensor Correlation Bank 2 Sensor 1/Bank 2 Sensor 2 Signal Compare Failure [01/2017 - 09/2018]
- DTC P00D5-62: A/F (O2) Sensor Correlation Bank 1 Sensor 1/Bank 1 Sensor 2 Signal Compare Failure; DTC P00D6-62: A/F (O2) Sensor Correlation Bank 2 Sensor 1/Bank 2 Sensor 2 Signal Compare Failure [09/2018 - ]
- 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 [01/2017 - ]
- DTC P0100-64: Mass or Volume Air Flow Sensor "A" Signal Plausibility Failure [01/2017 - ]
- DTC P0105-11: Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Ground [01/2017 - ]
- DTC P0105-15: Manifold Absolute Pressure / Barometric Pressure Sensor Circuit Short to Battery or Open [01/2017 - ]
- DTC P0105-2A: Manifold Absolute Pressure / Barometric Pressure Sensor Signal Stuck in Range [01/2017 - 04/2020]
- DTC P0105-2A: Manifold Absolute Pressure / Barometric Pressure Sensor Signal Stuck in Range [04/2020 - ]
- DTC P0110-11: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground [01/2017 - ]
- DTC P0110-15: Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open [01/2017 - ]
- DTC P0110-2A: Intake Air Temperature Sensor 1 Bank 1 Signal Stuck in Range [01/2017 - ]
- DTC P0115-11: Engine Coolant Temperature Sensor 1 Circuit Short to Ground [01/2017 - 09/2018]
- DTC P0115-11: Engine Coolant Temperature Sensor 1 Circuit Short to Ground [09/2018 - ]
- DTC P0115-15: Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open [01/2017 - 09/2018]
- DTC P0115-15: Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open [09/2018 - ]
- DTC P0115-2A: Engine Coolant Temperature Sensor 1 Signal Stuck in Range [01/2017 - ]
- DTC P011B-62: Engine Coolant Temperature / Intake Air Temperature Signal Compare Failure [01/2017 - ]
- DTC P0120-11: Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Ground [01/2017 - ]
- DTC P0120-15: Throttle / Pedal Position Sensor / Switch "A" Circuit Short to Battery or Open [01/2017 - ]
- DTC P0120-1C: Throttle / Pedal Position Sensor / Switch "A" Circuit Voltage Out of Range [01/2017 - ]
- DTC P0125-00: Insufficient Coolant Temperature for Closed Loop Fuel Control [01/2017 - ]
- DTC P0128-00: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) [01/2017 - 09/2018]
- DTC P0128-00: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) [09/2018 - 04/2020]
- DTC P0128-00: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature); DTC P0128-07: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature) Mechanical Failure [04/2020 - ]
- DTC P0136-16: A/F (O2) Sensor Circuit Bank 1 Sensor 2 Circuit Current (Voltage) Below Threshold; DTC P013A-7C: A/F Sensor - Rich to Lean Bank 1 Sensor 2 Slow Response; DTC P013C-7C: A/F Sensor - Rich to Lean Bank 2 Sensor 2 Slow Response; DTC P0156-16: A/F (O2) Sensor Circuit Bank 2 Sensor 2 Circuit Current (Voltage) Below Threshold [01/2017 - 09/2018]
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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