Reference meaning
What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
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A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Scan worksheet →Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
P11EA00(Bank 1 Air-Fuel Ratio Imbalance (Port))
Manufacturer communications
5Original wording in English
TOYOTA
Some 2023 – 2024 model year Corolla and Corolla Cross vehicles with M20A-FKS engines may exhibit a MIL ON condition with one or both of the following Diagnostic Trouble Codes (DTCs) present: •P11EA00 – (Bank 1 Air-Fuel Ratio Imbalance (Port)) •P013A7C – (A/F Sensor – Rich to Lean Bank 1 Sensor 2 Slow Response) There are no driva…
LEXUS
Some 2015 – 2017 model year NX 200t, 2016 – 2017 model year GS 200t, IS 200t, and RC 200t, 2018 – 2019 model year GS 300, and 2018 – 2021 model year NX 300, and 2018 – 2024 model year IS 300 and RC 300 vehicles equipped with an 8AR-FTS engine may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Cod…
TOYOTA
Some 2023 – 2024 model year Corolla and Corolla Cross vehicles with M20A-FKS engines may exhibit a MIL ON condition with Diagnostic Trouble Code (DTC) P11EA00 (Bank 1 Air-Fuel Ratio Imbalance (Port)) present. There are no drivability issues or other symptoms associated with this condition.
LEXUS
Some 2015 – 2017 model year NX 200t, 2016 – 2017 model year GS 200t, IS 200t, and RC 200t, 2018 – 2019 model year GS 300, and 2018 – 2021 model year NX 300, and 2018 – 2024 model year IS 300 and RC 300 vehicles equipped with an 8AR-FTS engine may exhibit a MIL ON condition with one or more of the following Diagnotic Trouble Code…
Check vehicle applicability
53A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.