Diagnostic trouble code

P2112 Throttle Actuator Control System Stuck Closed

The PCM sees the electronic throttle stuck more closed than commanded.

Throttle & Idle Control Codes

Read This First

This code identifies the failed diagnostic test or circuit family. Confirm the basic checks before replacing parts, and keep freeze-frame data until the repair is verified.

Common Checks

  • Inspect throttle plate movement, connector fit, and harness damage.
  • Check for low battery voltage or charging issues.
  • Look for companion pedal or throttle-position codes.

Common Repairs

  • Repair wiring, voltage, or connector problems.
  • Clean deposits if the plate is sticking.
  • Replace the throttle body when actuator failure is confirmed.

Mustang Notes

Model-Year Applicability

Listed for 2005 and newer traditional gasoline Mustang pages in this first-pass catalog. Engine, calibration, and Ford-specific codes may narrow that range as more service data is added.

Sources

  1. SAE J2012DA Digital Annex of Diagnostic Trouble Code Definitions
  2. 1996 Ford Mustang Owner Guide