P2111 — Throttle Actuator A Control System - Stuck Open

P2111: Throttle Actuator A Control System - Stuck Open — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Throttle Actuator A Control System - Stuck Open. Basic catalogue definition; diagnostic details have not yet been reviewed.

Affected system: Powertrain

Symptoms

  • An engine warning and abnormal accelerator response may appear.
  • Engine power may be limited and idle may become rough.

Possible causes

  • The throttle plate may bind in an open position due to deposits or mechanical damage.
  • A motor-control fault, damaged wiring or incorrect throttle-position feedback may also contribute.

What to check

  • Read related codes and inspect the throttle plate visually with ignition off.
  • Inspect actuator wiring and connector pins.
  • Compare commanded and actual throttle positions using vehicle-specific testing before replacement.

Also written as: P2111-00, P211100 (some scan tools add the fault-type byte, e.g. -00).