How to fix a P2111 Code: Throttle Actuator A Control System Stuck Open
The Throttle Actuator is a DC motor controlled by the computer (ECM/PCM/TAC) that opens and shuts the throttle body plate (butterfly).
The Throttle Actuator Control (TAC) is all the components involved, including wiring, DC motor, butterfly, sensors, and computer (ECM/PCM/TAC)
If the throttle body is replaced, it may have a Throttle Relearn procedure.

Possible Causes of a P2111 Code:
Wiring (Open / Short / Bad Connections)
Dirty Throttle Body (Needs Cleaned)
Bad Throttle Body (Needs Replaced)
Bad TAC Module (Some Vehicles the Actuator is Controlled by the ECM or PCM)
Bad Throttle Position Sensor or Pedal Position Sensor (Will Usually Get Another Code)

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