P2111
Throttle Actuator Control System Stuck Open
The throttle plate is not closing the way the computer expects. That can make the engine idle too high, hang at higher RPM, feel like it is still pulling, or drop into reduced power mode because the PCM no longer trusts throttle control.
- SEV
- 5/5
- DRIVE
- NO
- DIY
- $20-$300
- SHOP
- $180-$900
Quick answer
AI-CITATION READYWhat it means
Can you drive with it?
Most common causes
- Dirty or sticking throttle body that cannot close normally
- Throttle actuator motor or internal throttle body failure
- Throttle position sensor or wiring fault causing false open feedback
Typical repair cost
DIY usually runs $20-$300. Typical shop repair lands around $180-$900, depending on the root cause.
01 / Definition
P2111 means the PCM determined that throttle actuator control system A is stuck open or cannot return to the expected closed position. The PCM is commanding the throttle toward idle or closed throttle and seeing too much actual opening, too much airflow, or feedback that will not settle. Carbon buildup, a failed throttle motor, damaged gears, harness issues, or conflicting throttle-position feedback can all trigger this code.
02 / Drive status
No — get it towed. Do not keep driving if the engine races, idles high, or responds unpredictably. P2111 can mean the throttle body is hanging open or the actuator is not returning to the commanded closed position, which can create unsafe acceleration or unstable engine speed.
03 / Symptoms
- Check engine light
- High idle
- Reduced power mode
- Poor throttle control
- Engine speed that does not drop normally
- Engine racing or hanging at high RPM
- Possible limp mode after a throttle safety fault
04 / Causes
| 1 | Dirty or sticking throttle body that cannot close normally | high |
|---|---|---|
| 2 | Throttle actuator motor or internal throttle body failure | high |
| 3 | Throttle position sensor or wiring fault causing false open feedback | medium |
| 4 | PCM or throttle control circuit fault | medium |
05 / Diagnostic sequence
- 01Confirm P2111 and note whether the engine is idling high or the throttle is not closing fully.
- 02Check for related throttle body, pedal sensor, and correlation codes.
- 03Inspect the throttle body for carbon buildup, binding, or physical obstruction.
- 04Inspect the throttle body connector and wiring for corrosion, damage, or poor grounds.
- 05Use live data and bidirectional controls if available to compare commanded versus actual throttle position and verify whether the throttle can return closed after snap throttle or key-on self-test.
- 06If P2101, P2118, P0222, P0223, or P2135 are also present, separate a stuck-open plate from a motor-current or sensor-correlation problem before replacing the throttle body.
06 / Repairs
| 1 | Clean the throttle body and remove carbon buildup if the plate is sticking | $10-$80 |
|---|---|---|
| 2 | Repair throttle actuator wiring, connector, or ground faults | $20-$150 |
| 3 | Replace the throttle body assembly if the motor or internal position sensors fail testing | $150-$600 |
07 / Related codes
08 / FAQ
Can a dirty throttle body cause P2111?
Yes. Heavy carbon buildup can keep the throttle plate from moving or returning normally and trigger a stuck-open fault.
Is P2111 dangerous?
It can be. If engine speed stays too high or throttle control is unpredictable, the vehicle may not be safe to drive.
Does P2111 always mean the throttle body must be replaced?
No. Cleaning, wiring repair, and connector repairs can solve it when the throttle body itself still tests good.
What is the difference between P2111 and P2101?
P2111 points to a throttle plate that appears stuck open or unable to return closed. P2101 is broader and means the throttle motor is not following commands correctly. They often overlap, but P2111 is the tighter stuck-open clue.
Can P2111 and P2101 appear together?
Yes. A sticking throttle body or weak actuator motor can set both a stuck-open fault and a throttle performance fault, which is why cluster codes should be checked together.
09 / Source and method
- DATA BASIS
- OBD-II REFERENCE + OBD2.HELP
- METHOD
- STATIC VALIDATION
- SAFETY
- INFORMATIONAL
This page combines OBD-II diagnostic reference data with OBD2.help generated diagnostic guidance for code meaning, likely causes, and repair direction.
Publishing uses deterministic schema and build validation, plus manual spot checks on representative pages before release.
Safety-critical diagnosis and repairs should be confirmed with a qualified mechanic, especially when the vehicle is misfiring, overheating, or losing power.