P2111 Throttle Actuator Control System - Stuck Open
P2111 is a generic OBD2 powertrain code. It means “Throttle Actuator Control System - Stuck Open” — the same on every make and model, because the definition comes from the SAE J2012 standard rather than from the carmaker.
Ask the AI about P2111 on your car- System
- Powertrain (P)
- Code type
- Generic (SAE)
- Range
- P21xx
- Urgency
- High
What P2111 means
The electronic throttle has two position sensors that must agree and a motor the computer must be able to move. The computer found the two sensors disagreeing (P2135) or the throttle stuck open (P2111) or closed (P2112) — and usually limits engine power as a precaution.
Symptoms
- Limp mode — very little power, often with capped revs
- A rough or high idle
- Stalling
- An EPC or wrench warning lamp on some cars
Most likely causes
- Worn position-sensor tracks inside the throttle body
- A dirty, carboned-up throttle body
- A damaged connector or wiring
- A failed throttle motor
- A faulty accelerator pedal sensor, on some cars
What to check first
- Inspect the throttle-body connector and wiring
- Clean the throttle body and run the throttle relearn
- Replace the throttle body if the sensors still disagree
Can I keep driving with P2111?
Limit driving — get it checked promptly
Only as far as you need to. Limp mode can leave you without power when merging or overtaking.
What the wording tells you
“Stuck” means the module commanded the component and the feedback shows it didn’t respond — it stayed on, off, open or closed, as the code says. Carbon, dirt or wear jamming it mechanically is as likely as an electrical fault.
How P2111 breaks down
Powertrain. Engine, transmission, fuel and emissions — the codes behind the check engine lamp.
Generic code: defined by SAE, the same on every make.
Fuel & air metering and emission controls.
The specific fault within this range.
Where to look: Fuel & air metering and emission controls
Codes in these ranges cover the parts that decide how much air and fuel reach the engine and how the exhaust is treated on the way out: variable valve timing, oxygen-sensor heaters, turbo boost control, the electronic throttle and accelerator pedal, intake runners, NOx sensors and — on diesels — the particulate filter and the AdBlue (SCR) system.
All P21xx codes →Ask the AI about P2111 on your car
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Frequently asked
What does P2111 mean?
P2111 is a generic OBD2 powertrain code. It means “Throttle Actuator Control System - Stuck Open” — the same on every make and model, because the definition comes from the SAE J2012 standard rather than from the carmaker. The electronic throttle has two position sensors that must agree and a motor the computer must be able to move. The computer found the two sensors disagreeing (P2135) or the throttle stuck open (P2111) or closed (P2112) — and usually limits engine power as a precaution.
Can I drive with P2111?
Only as far as you need to. Limp mode can leave you without power when merging or overtaking.
What causes P2111?
Worn position-sensor tracks inside the throttle body; A dirty, carboned-up throttle body; A damaged connector or wiring; A failed throttle motor; A faulty accelerator pedal sensor, on some cars.
How do I clear P2111?
Fix the cause first, then clear it with any OBD2 scanner or app. Once the fault is gone the car also clears it on its own: the check engine lamp goes off after the self-test passes on three drive cycles in a row, and the stored code ages out after about 40 warm-ups. Clearing without a repair only hides it for a while — and resets the readiness monitors an emissions inspection looks at.
Is P2111 the same on every car?
Yes. P2111 is a generic SAE J2012 code, so its definition is identical on every make and model. What differs is the cause behind it and the repair procedure, which depend on the engine — that’s why the assistant on this page asks for your car.
Guides
Definitions: the generic SAE J2012 codes from Brimly’s offline dictionary (data version 2026.09). Causes and advice are general guidance for all makes — the service information for your car has the last word.