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Engine-Codes – Toyota – P2112 Toyota

P2112 Toyota Code - Throttle Actuator Control System Stuck Closed

Quick Answer

The P2112 diagnostic trouble code for Toyota vehicles refers to the Throttle Actuator Control System being stuck closed. Common causes include Faulty throttle actuator control motor, Wiring issues in the throttle control system, Stuck throttle plate. 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 Toyota indicates Throttle Actuator Control System Stuck Closed.
Common causes
Common causes include Faulty throttle actuator control motor, Wiring issues in the throttle control system, Stuck throttle plate.
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 Toyota Description

The P2112 diagnostic trouble code for Toyota vehicles refers to the Throttle Actuator Control System being stuck closed. This means that the electronic throttle control system, which regulates the amount of air entering the engine, is not functioning properly and is not allowing the throttle plate to open as it should. This can have a significant impact on the vehicle's performance, as the engine may not be able to receive the necessary amount of air to operate efficiently.

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

Common Causes of P2112 Toyota

  1. Faulty throttle actuator control motor
  2. Wiring issues in the throttle control system
  3. Stuck throttle plate
  4. Malfunctioning throttle position sensor
  5. Electronic control unit (ECU) failure

Symptoms of P2112 Toyota

  1. Lack of power or acceleration
  2. Hesitation or jerking while driving
  3. Engine stalling or difficulty starting
  4. Poor fuel efficiency
  5. Illuminated Check Engine Light

How to Fix P2112 Toyota

  1. Begin by conducting a thorough inspection of the throttle actuator control system, including the motor, wiring, throttle plate, and sensors.
  2. Use a diagnostic scanner to retrieve the trouble codes and monitor live data to pinpoint the exact cause of the issue.
  3. Test the throttle actuator control motor and related components for proper functionality and replace any faulty parts.
  4. Clear the trouble codes and reset the ECU to ensure the issue has been resolved.
  5. Test drive the vehicle to confirm that the symptoms have been eliminated and the throttle actuator control system is operating correctly.

Cost to Fix P2112 Toyota

The cost of repairing a P2112 code in a Toyota vehicle can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. However, it's important to note that diagnostic time and labor rates can vary, so it's recommended to get a quote from a trusted auto repair shop in your area for a more accurate estimate.

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Information for Specific Toyota Models

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 Toyota Code

1. What does the OBDII code P2112 mean on a Toyota?

P2112 indicates that the throttle actuator control system is stuck in the closed position, meaning the throttle plate is not opening as commanded by the engine control module (ECM).

2. What are the symptoms of the P2112 code on a Toyota?

Common symptoms include reduced engine power, poor acceleration, a throttle unresponsive to input, the engine going into limp mode, and the check engine light turning on.

3. What causes the P2112 code to appear on a Toyota?

Potential causes include a malfunctioning throttle body, carbon buildup on the throttle plate, a faulty throttle position sensor, damaged wiring or connectors, or issues with the ECM.

4. Can I drive my Toyota with the P2112 code active?

Driving with the P2112 code is not recommended, as the vehicle may enter limp mode, resulting in reduced power and performance, which could be unsafe in certain situations.

5. How can I fix the P2112 code on a Toyota?

Start by cleaning the throttle body to remove carbon buildup. If the issue persists, inspect the throttle actuator motor, throttle position sensor, and related wiring for damage. Replace faulty components as needed.

6. How much does it cost to repair the P2112 code on a Toyota?

The cost varies depending on the cause. Throttle body cleaning usually costs $100-$200, while replacing the throttle body or related sensors can range from $300 to $1,000, including parts and labor.

7. Can a dirty throttle body cause the P2112 code on a Toyota?

Yes, a dirty or carbon-clogged throttle body can cause the throttle plate to stick, triggering the P2112 code.

8. How do I diagnose the P2112 code on my Toyota?

Use an OBDII scanner to confirm the code, then visually inspect the throttle body, wiring, and connectors. Test the throttle actuator motor and throttle position sensor with a multimeter if needed.

9. Will resetting the check engine light fix the P2112 code on a Toyota?

Resetting the light may clear the code temporarily, but the underlying issue must be addressed to prevent the code from returning.

10. Can a faulty ECM cause the P2112 code on a Toyota?

While rare, a malfunctioning ECM can cause the P2112 code if it fails to properly control the throttle actuator system.

Discuss the causes and fixes for P2112 Toyota OBDII Code

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  • Toyota Yaris 1.33 HAT vvt-i TR, 59 reg (53,000 miles): Got check engine light when trying to reverse out of parking space and engine cut out. Restarted it and, after a couple of goes, got it to rev and was then ok. Dealer says P2112 code found - followed Toyota bulletin and updated ECU software and reset codes. Its been ok since then.

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  • Thank you for the information!!

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