P2111

Throttle Actuator A Control System - Stuck Open

Throttle actuator control Generic OBD-II High

What it means

P2111 means the drive-by-wire throttle system detects the throttle plate stuck in an open (or partly open) position, so the ECM can't control airflow normally. It usually forces a reduced-power limp mode to keep things safe. The most common cause is heavy carbon buildup in the throttle body, though the actuator motor or wiring can also be at fault.

High

Can I keep driving? The ECM usually forces a reduced-power limp mode; drive as little as possible and have the throttle body checked before relying on the car.

Real-world scan data

Seen in

345

scans in the past year

Found in

0.1%

of scans

0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on
Reduced power or limp mode (throttle response limited)
High or unstable idle
Hesitation and poor throttle response

Common causes

Most likely first

Heavy carbon buildup in the throttle body keeping the plate from closingLikely
Failed throttle actuator motor or throttle body assemblyCommon
Throttle plate or return spring binding mechanicallyCommon
Wiring or connector faults in the throttle actuator circuitLess often
PCM/ECM fault (rare)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data, then inspect the throttle body and clean carbon from the bore and plate first — the most common fix.
Check that the throttle plate moves freely and the return spring isn't binding.
Inspect the throttle actuator connector and wiring for damage or corrosion.
Test the throttle actuator motor per the service data; replace the throttle body if it fails.
Clear the code, relearn idle, and recheck. Suspect the PCM only after everything else checks out.

FAQ

Quick answers

Is it safe to drive with P2111?+

Only minimally. A stuck-open throttle means the ECM can't control airflow normally and usually forces a reduced-power limp mode, which is a safety and driveability concern. Get it fixed promptly.

Can I just clear P2111?+

You can, but if the throttle body is carbon-fouled or the actuator is failing it will set again within a drive cycle or two until the underlying fault is repaired.

Read & clear P2111 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX