When your 2023 Ford Bronco enters reduced power mode with P2111, the throttle body system has malfunctioned, causing the computer to limit engine power for safety. P2111 specifically indicates the throttle is stuck in a more-open position than commanded, which is a potentially dangerous condition requiring immediate attention.
Understanding P2111
P2111 means the throttle actuator control system is stuck open—the throttle blade isn't returning to its commanded position properly. This could mean the throttle is stuck partially open when it should be closed, creating a potentially unsafe condition. The ECM enters reduced power mode to maintain control of the vehicle.
Common Causes
Carbon buildup on the throttle body preventing proper blade movement. Failed throttle body motor unable to control blade position. Throttle position sensor failure giving incorrect readings. Wiring issues between ECM and throttle body. Foreign object or ice blocking throttle blade movement. Failed throttle body requiring replacement.
Diagnostic Steps
Visually inspect the throttle body for carbon buildup or physical obstruction. Check throttle body electrical connector for damage or corrosion. Clean the throttle body carefully with appropriate cleaner. Test throttle body operation by commanding various positions with a scan tool. Check for related codes that might indicate wiring or sensor issues.
Safety Note
A stuck-open throttle is a safety concern. If the vehicle is accelerating without throttle input, safely pull over and turn off the engine. Don't drive a vehicle with uncontrolled acceleration. Have it towed for diagnosis if throttle response seems abnormal.