Error code

OBD2 P2111

OBD2P2111
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Throttle Actuator Control System - Stuck Open.

Severity

highThe vehicle may be drivable but with significant performance limitations. It is recommended to address this issue promptly.

Summary

P2111 indicates that the throttle actuator control system is stuck in an open position, typically located at the throttle body.

Symptoms

  • Malfunction Indicator Light (MIL) ON
  • Electronic Throttle Control indicator ON or flashing
  • No throttle response – engine will only idle
  • Ford wrench light and limp mode

Common Causes

  • Faulty throttle actuator control module/throttle body
  • Wiring issues to the TAC motors (open or shorted)
  • Poor electrical connections at the TAC module
  • Failed PCM (less common)

Diagnosis

  1. Check for technical service bulletins and other diagnostic fault codes.
  2. Inspect the throttle body for sludge buildup and clean if necessary.
  3. Verify electrical connections at both PCM and throttle body.
  4. Test resistance of TAC/ETC motors.
  5. Check voltage signals to each ETC motor and wiring between PCM and TAC system.

Fixes

  • Replace the faulty throttle actuator control module or throttle body assembly.— $200-$300

FAQ

Is it safe to drive with P2111?

Driving is possible but performance will be severely limited. It's recommended to address the issue promptly.

Can I clean the throttle body myself?

Yes, you can clean the throttle body yourself by removing debris and sludge behind the plate carefully without damaging it.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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