P2111
Throttle Actuator "A" Control System - Stuck Open
High· Fix promptlyIntermediatePowertrainGeneric, all makes
What it means
The throttle plate is not returning to its closed position.
Is it safe to drive?
Drive with extreme caution or not at all. The engine may not slow down properly when you lift off.
Symptoms
- High idle
- Limp mode
- Engine does not slow down quickly
Probable causes
Most likely first
- 1Carbon or ice holding the throttle open
- 2Failing throttle body return spring or motor
- 3Floor mat interfering with the pedal
How to diagnose it
Work through these in order before buying parts
- 1Record the code and its freeze frame data (speed, load, temperature when it set), then clear it and see if it comes back.
- 2Check the pedal for interference.
- 3Inspect and clean the throttle body.
- 4Check for technical service bulletins (TSBs) or software updates for your make and model; some codes have known factory fixes.
Common fixes
- Clean or replace the throttle body
- Perform a throttle relearn
This information is general guidance for all makes. Exact causes, specifications and procedures vary by vehicle, so confirm with your service manual or a qualified mechanic before replacing parts.