P2111 2010 Ford Fusion Code - Throttle Actuator Control System - Stuck Open

The P2111 code indicates that the Throttle Actuator Control (TAC) System is stuck in the open position, which means the throttle body is not operating correctly and is stuck open beyond the normal range set by the manufacturer.

Symptoms include rough idling, difficulty starting the engine, unexpected acceleration, poor fuel economy, and the engine stalling, particularly at low speeds.

Common causes include a faulty throttle body, obstructions or buildup in the throttle body preventing it from closing, issues with the throttle actuator control motor, or problems with the throttle position sensor.

Repairs can range from cleaning the throttle body, replacing the throttle body unit, repairing any faulty wiring or connectors in the throttle control system, to replacing the throttle position sensor or throttle actuator control motor.

Driving with the P2111 code can be risky as it may cause unpredictable vehicle behavior, such as stalling or unintended acceleration. It is advisable to address the issue promptly to ensure safety.

Diagnosis involves using an OBD-II scanner to confirm the code, visually inspecting the throttle body and associated components for debris or damage, checking the wiring and connectors for issues, and testing the throttle position sensor and throttle actuator control motor for proper operation.

Tools needed may include a digital multimeter, an OBD-II scanner, basic hand tools for removing components, and possibly a throttle body cleaner for cleaning the throttle body.

Yes, in some cases, a software glitch or outdated engine control module (ECM) software can cause this issue. It's worth checking for any available updates for the ECM that might resolve the error.

The cost can vary widely depending on the root cause and local labor rates. Simple cleaning might cost $50 to $100, whereas replacing the throttle body or other components could range from $200 to over $600 including parts and labor.