P2112: Throttle Actuator A Control System - Stuck Closed
What Does P2112 Mean?
P2112 is a diagnostic trouble code indicating: Throttle Actuator A Control System - Stuck Closed. This code relates to the powertrain system. It has been reported in NHTSA complaints across 12 different vehicle models.
Symptoms of P2112
- ⚠️ Check engine light illuminated
- ⚠️ Engine stalling or dying
- ⚠️ Rough or unstable idle
- ⚠️ Hesitation during acceleration
- ⚠️ Difficulty starting the engine
- ⚠️ Loss of engine power
Common Causes
- 🔍 Throttle body or throttle position sensor issue
- 🔍 Stuck or failed EGR valve
- 🔍 Wiring or connector problem
- 🔍 Turbocharger or boost system issue
- 🔍 EVAP system component failure
- 🔍 Sensor or control module malfunction
P2112 Reports by Year
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"ON 2 OCCASIONS WHILE DRIVING AT SPEED (65-70 MPH) IN TRAFFIC ON A MAJOR INTERSTATE, MY CAR LOST POWER (IT DID NOT CUT OFF--ONLY LOST POWER). AFTER WORKING MY WAY OFF OF THE INTERSTATE HWY., I WAS ABLE TO USE A CODE READER AND FOUND THAT DIAGNOSTIC TROUBLE CODE P2112 HAD BEEN SET (THROTTLE ACTUATOR "
— Toyota Camry owner, 02/16/2017
"ON THREE SEPARATE OCCASIONS, MY FORD 2005 F150 KING RANCH SUPERCREW 4X4 ENGINE SUDDENLY DIED WHILE DRIVING AT APPROXIMATELY 55-60MPH. ON ALL THREE OCCASIONS, I FORTUNATELY WAS ABLE TO PULL OVER TO THE SIDE OF THE ROAD WITH THE ENGINE DIED AND NO POWER STEERING. IF I HAD NOT BEEN IN THE RIGHT HAND "
— Ford F-150 owner, 04/07/2012
"2005 FORD F150 VEHICLE LOSES POWER AND ALL CONTROL WHILE DRIVING ON THE ROAD. THIS HAPPENED AT LEAST SIX TIMES. VERY LUCKY TRAFFIC WAS LIGHT MOST TIMES BUT ONE ALMOST A CAUSED REAR END COLLISION. I REPLACED A THROTTLE SENSOR AND THE PROBLEM DISAPPEARED AND THE PROBLEM RETURNED AFTER A COUPLE OF WEEK"
— Ford F-150 owner, 08/12/2009
Source: NHTSA Complaints Database
Most Reported Vehicles for P2112
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | FORD ESCAPE | |
| 2 | FORD FUSION | |
| 3 | FORD EXPEDITION | |
| 4 | FORD EXPLORER | |
| 5 | FORD MUSTANG | |
| 6 | FORD EDGE | |
| 7 | FORD F-150 | |
| 8 | FORD FOCUS | |
| 9 | TOYOTA CAMRY | |
| 10 | FORD TAURUS | |
| 11 | DODGE JOURNEY | |
| 12 | DODGE AVENGER |
P2112 Reports by Vehicle
Detailed NHTSA complaint analysis for each vehicle model.
Diagnostic Tips
- Scan all modules, save freeze-frame data, and clear unrelated history codes before focusing on P2112.
- Confirm whether companion codes are present first; they often identify the root cause sooner than the headline DTC.
- Prioritize inspection around vehicle speed control and the most common failure path for this code family.
- Check APP/TPS correlation PIDs through slow pedal sweeps; look for dropouts, lag, or disagreement between paired sensors.
- After each repair step, complete one drive cycle and verify readiness monitors instead of judging success after a quick idle test.
- If the code keeps returning on high-incidence platforms (for example FORD ESCAPE), check TSB patterns and wiring/connector fitment before major part replacement.
Common Mistakes to Avoid
- ❌ Skipping freeze-frame review and losing the exact RPM/load conditions when the fault set.
- ❌ Replacing the throttle body without checking APP sensor correlation and connector pin tension.
- ❌ Clearing P2112 and returning the car before monitors complete — this often creates repeat visits.
- ❌ Treating intermittent wiring or connector faults as permanent component failure without wiggle testing.
Frequently Asked Questions
Can I drive with this code?
Will this code clear itself?
How do I find the exact cause?
Reported Repair Costs for P2112
Based on 4 owner-reported repair costs from NHTSA complaints.
⚠️ These are owner-reported costs, not estimates. Actual costs vary by location, labor rates, and root cause. Source: NHTSA complaints database.
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Check and tighten the gas cap — replace if cracked or damaged ($5-15)
- 🔧 Test the relevant sensor(s) with a multimeter before replacing
- 🔧 Inspect wiring harness and connectors for damage, corrosion, or loose connections
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.