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Engine-Codes – Generic – P2112

P2112 Code - Throttle Actuator Control System - Stuck Closed

Quick Answer

The P2112 diagnostic trouble code (DTC) refers to the Throttle Actuator Control System being stuck closed. Common causes include Faulty throttle actuator, Corrosion or debris affecting the throttle actuator, Wiring or connector issues in the throttle actuator circuit. 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 Faulty throttle actuator, Corrosion or debris affecting the throttle actuator, Wiring or connector issues in the throttle actuator circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2112 Description

The P2112 diagnostic trouble code (DTC) refers to the Throttle Actuator Control System being stuck closed. This code is typically found in vehicles with electronic throttle control systems, where the throttle actuator controls the opening and closing of the throttle valve. When the actuator becomes stuck closed, it means that the throttle valve is unable to open properly, resulting in limited airflow to the engine. This can lead to a decrease in engine performance, reduced power output, and potential drivability issues.

OBDII Code P2112 - Throttle Actuator Control System - Stuck Closed
P2112 Code - Throttle Actuator Control System - Stuck Closed

Common Causes of P2112

  1. Faulty throttle actuator
  2. Corrosion or debris affecting the throttle actuator
  3. Wiring or connector issues in the throttle actuator circuit
  4. Electronic control module (ECM) failure

Symptoms of P2112

  1. Reduced engine power
  2. Poor acceleration
  3. Engine stalling or hesitation
  4. Illumination of the check engine light

How to Fix P2112

  1. Perform a thorough diagnosis using a scan tool to confirm the P2112 code and identify the root cause.
  2. Inspect the throttle actuator for any signs of physical damage, corrosion, or debris that may be causing it to stick closed.
  3. Check the wiring and connectors in the throttle actuator circuit for any loose connections or damage.
  4. If the throttle actuator is faulty, replace it with a new unit following manufacturer's guidelines.
  5. Clear the DTC and perform a test drive to ensure the issue has been resolved.

Cost to Fix P2112

The typical repair costs for addressing a P2112 code can vary depending on the specific vehicle make and model, as well as the extent of the issue. In general, replacing a throttle actuator can range from $200 to $600, including parts and labor. Additional costs may apply if other components need to be replaced or if diagnostic time is required. It is recommended to consult with a professional mechanic or auto repair shop for a more accurate cost estimate based on your vehicle's specific requirements. Keep in mind that labor rates can vary, so it's advisable to check local rates for a more precise estimate.

When is the Code Detected?

Throttle valve locked during Engine Control Module (ECM) order to open

Need more information about the P2112 code?

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Code P2112 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

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  • 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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