AutoCodesGeneric – P2112

P2112 Code - Throttle Actuator Control System - Stuck Closed

Quick Answer

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve using gears. Common causes include Throttle Body Plate Binding, Faulty Throttle Actuator, Throttle Actuator harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2112 indicates Throttle Actuator Control System - Stuck Closed.
Common causes
Common causes include Throttle Body Plate Binding, Faulty Throttle Actuator, Throttle Actuator harness is open or shorted.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code Popularity 53,784
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P2112 Description

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve using gears. The opening angle of the throttle valve is detected by the throttle position sensor, which is mounted on the throttle body. The throttle position sensor provides feedback to the ECM to control the throttle actuator and set the throttle valve angle in response to driver inputs.
OBDII Code P2112 - Throttle Actuator Control System - Stuck Closed - AutoCodes.com
P2112 Code - Throttle Actuator Control System - Stuck Closed

What are the Possible Causes of the DTC P2112?

  • Throttle Body Plate Binding
  • Faulty Throttle Actuator
  • Throttle Actuator harness is open or shorted
  • Throttle Actuator circuit poor electrical connection

How to Fix the DTC P2112?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2112 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2112 code?

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Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2112 Code

1. What does the OBDII code P2112 mean?

P2112 indicates that the throttle actuator control system is stuck in the closed position, preventing proper airflow into the engine.

2. What are common symptoms of a P2112 code?

Symptoms include a lack of engine power, difficulty accelerating, the engine stalling, and the check engine light illuminating.

3. What causes the P2112 code to appear?

Common causes include a faulty throttle body, a malfunctioning throttle position sensor, damaged wiring or connectors, or carbon buildup in the throttle body.

4. Can I drive with a P2112 code?

Driving with a P2112 code is not recommended, as it can lead to reduced power or cause the engine to stall unexpectedly, creating safety risks.

5. How can I fix a P2112 code?

Repairs may include cleaning the throttle body, replacing the throttle actuator, repairing damaged wiring, or recalibrating the throttle position system.

6. How do I diagnose the P2112 code?

Diagnosis involves scanning the car with an OBDII tool, inspecting the throttle body for buildup or damage, and testing the throttle actuator and related wiring.

7. Can a dirty throttle body cause a P2112 code?

Yes, carbon buildup or dirt in the throttle body can cause the throttle plate to stick, triggering the P2112 code.

8. Will clearing the code fix the issue?

Clearing the code without addressing the underlying issue will likely result in the code returning and the symptoms persisting.

9. What tools are needed to fix a P2112 code?

You may need an OBDII scanner, a multimeter for electrical tests, and throttle body cleaner for carbon buildup removal.

10. How much does it cost to repair a P2112 code?

The cost depends on the required repair. Cleaning the throttle body is inexpensive, but replacing the throttle actuator can cost $300–$700 or more, including labor.

Discuss the causes and fixes for P2112 OBDII Code

  • changed battery in 08 ford fusion and now the accelerator does not work and the starter runs by its-self. code P2112 shows up on scanner?

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