Code result
P2111
Throttle Actuator Control System — Stuck Open
High severity
What it means
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.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Throttle plate seized open
highOne of the most commonly reported causes for this code — check this first.
Return spring broken
mediumA plausible cause — test and verify before replacing parts.
Carbon or debris buildup preventing free movement
lowLess common, but worth ruling out after the more likely causes.
Related help
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