Code Definition

P2111 — Throttle Actuator Control System - Stuck Open

System: Powertrain  |  Type: Generic (OBD-II Standard)  |  Make: Toyota

About P2111

P2111 is a generic (obd-ii standard) powertrain diagnostic trouble code recorded for Toyota vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

When P2111 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

Because P2111 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The electronic throttle body positions the throttle plate using a direct current motor controlled by the engine control module, and two throttle position sensors report back where the plate actually sits. The module continuously compares the position it commanded against the position reported, and a return spring holds the plate at a small default opening whenever the motor is not being driven. DTC P2111 sets when the module commands the throttle towards closed but the position sensors show the plate remaining open, meaning the throttle is mechanically stuck rather than electrically faulty. Be...

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