P2111 Code: Meaning, Causes and Repair Cost

The electronic throttle is stuck more open than the computer is asking for. To keep you safe, the car will cut power and go into a reduced-power mode. Carbon buildup or a failing throttle body is the usual cause.

How the engine computer detects it

The throttle plate cannot be commanded back to the closed/idle position. Idle speed runs high or the engine cannot decelerate properly — safety-critical fault that usually triggers immediate limp mode.

Written from public technical sources and not yet checked by a mechanic. How we write these pages

Symptoms

Check engine light on
Reduced throttle response, possible limp mode
Hesitation or surging
Idle too high or too low

Common causes

Throttle plate seized open Most likely
Return spring broken Possible
Carbon or debris buildup preventing free movement Less likely

How to diagnose P2111

Check for other throttle and pedal codes, such as P2112, P2135 or P2138. They help narrow it down.
With the ignition off, remove the intake boot and look at the throttle plate. Clean heavy carbon with throttle body cleaner, without forcing the plate.
Check the throttle body connector for corrosion or bent pins.
If the plate sticks or the code returns, replace the throttle body. Many cars need a throttle relearn with a scanner afterwards.
Look up recalls and service bulletins for your vehicle. Several makes have had throttle body campaigns.

Vehicles that report P2111 most

Vehicle	Years	Reports	Median miles
Ford Fusion	2010–2016	117	62k
Ford Escape	2009–2016	108	56k
Ford Mustang	2010–2014	34	54k
Ford Edge	2011–2016	24	50k
Mercury Mariner	2008–2011	20	61k
Mercury Milan	2010–2011	18	49k
Ford Explorer	2004–2016	15	71k
Ford F-150	2005–2016	10	64k
Ford Focus	2009–2010	7	75k
Ford Transit	2015–2016	4	3k

Counts of owner complaints to the NHTSA that mention P2111 (389 in total), not failure rates: popular models get more complaints simply because more of them are on the road. Models with fewer than 3 complaints are left out.

Reading the code

P: Powertrain
2: Generic (SAE) code
111: Specific fault

Questions drivers ask

Can I drive with code P2111?

Only to get off the road safely. The engine may limit speed, idle high or not respond to the pedal. Get it towed or driven a short distance to a shop.

Will my car pass an emissions inspection with P2111?

Probably not in states that test vehicles with an OBD-II scan: an emissions-related code that keeps the check engine light on is usually an automatic fail. Rules differ by state and county, so check yours.

Will P2111 clear by itself?

The light can go off after several drive cycles without the fault, but the code returns if the cause is still there. After a repair, the readiness monitors need a full drive cycle before an inspection.

Can I fix P2111 myself?

Often yes, with an OBD-II scanner and basic tools. Difficulty: medium. Start with the cheapest checks before replacing expensive parts.

Often reported together

Codes that owners mention in the same NHTSA complaints as P2111. They can point to a shared cause, so it's worth checking them together.

P2111 Throttle Actuator Control System — Stuck Open

What P2111 means