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Engine-Codes – Lexus – P2112 Lexus

P2112 Lexus Code - Throttle Actuator Control System Stuck Closed

Quick Answer

The P2112 code for Lexus vehicles indicates an issue with the Throttle Actuator Control System being stuck closed. Common causes include Faulty throttle actuator motor, Defective throttle position sensor, Wiring issues or poor electrical connections. 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 Lexus indicates Throttle Actuator Control System Stuck Closed.
Common causes
Common causes include Faulty throttle actuator motor, Defective throttle position sensor, Wiring issues or poor electrical connections.
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 Lexus Description

The P2112 code for Lexus vehicles indicates an issue with the Throttle Actuator Control System being stuck closed. This means that the throttle actuator, responsible for controlling the amount of air entering the engine, is not functioning properly and is unable to open to the desired position. This can lead to significant performance issues in the vehicle, as the engine may not receive the appropriate amount of air needed for combustion, resulting in poor acceleration, rough idling, and overall decreased power output.

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

Common Causes of P2112 Lexus

  1. Faulty throttle actuator motor
  2. Defective throttle position sensor
  3. Wiring issues or poor electrical connections
  4. Failed electronic control module (ECM)
  5. Dirty or clogged throttle body

Symptoms of P2112 Lexus

  1. Check engine light illuminated on the dashboard
  2. Reduced engine power
  3. Rough idling or stalling
  4. Poor acceleration or throttle response

How to Fix P2112 Lexus

  1. Diagnose the issue using a diagnostic scanner to confirm the P2112 code and pinpoint the root cause of the problem.
  2. Inspect the throttle actuator, throttle body, sensors, and wiring connections for any signs of damage or wear.
  3. Clean the throttle body and throttle actuator to remove any built-up carbon deposits or debris that may be causing the issue.
  4. Replace any faulty components such as the throttle actuator motor, throttle position sensor, or electronic control module as needed.
  5. Clear the error code and reset the vehicle's ECM to ensure the issue has been resolved.

Cost to Fix P2112 Lexus

The typical repair costs for addressing a P2112 code in a Lexus vehicle can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair costs for this issue can range from $200 to $600, including parts and labor. However, it's important to note that the actual cost may be higher or lower based on the extent of the repairs needed and the prices of replacement components. It's recommended to obtain a detailed quote from a trusted auto repair shop to get a more accurate estimate for addressing the Throttle Actuator Control System Stuck Closed issue.

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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 Lexus Code

1. What are the common symptoms of OBDII code P2112 in a Lexus related to the Throttle Actuator Control System Stuck Closed?

- Common symptoms include reduced engine power, difficulty accelerating, and the vehicle going into limp mode.

2. What are the possible causes of the Throttle Actuator Control System Stuck Closed code P2112 in a Lexus?

- Possible causes include a faulty throttle body, issues with the throttle actuator control motor, wiring problems, or a malfunctioning electronic throttle control system.

3. How can I diagnose the Throttle Actuator Control System Stuck Closed code P2112 in my Lexus?

- Diagnosis typically involves using an OBDII scanner to read the code, inspecting the throttle body and related components for any visible damage, and testing the throttle actuator control motor.

4. Can I continue driving my Lexus with the P2112 code indicating the Throttle Actuator Control System Stuck Closed?

- It is not recommended to drive your Lexus with this code active, as it can lead to further damage and potential safety hazards. It is best to address the issue promptly.

5. What repairs are typically needed to fix the Throttle Actuator Control System Stuck Closed code P2112 in a Lexus?

- Repairs may involve cleaning or replacing the throttle body, repairing or replacing the throttle actuator control motor, checking and repairing any damaged wiring, or recalibrating the electronic throttle control system.

6. Are there any DIY tips for addressing the P2112 code in a Lexus?

- While some basic inspections like checking for loose connections or cleaning the throttle body can be done by DIY enthusiasts, it is recommended to have a professional mechanic diagnose and repair the issue to ensure proper resolution.

7. How much does it usually cost to fix the Throttle Actuator Control System Stuck Closed code P2112 in a Lexus?

- The cost can vary depending on the exact cause of the issue, but repairs for this code typically range from $200 to $800, including parts and labor.

8. Can a Lexus dealership service department help with the P2112 code related to the Throttle Actuator Control System Stuck Closed?

- Yes, a Lexus dealership service department has the expertise and diagnostic tools to efficiently diagnose and repair the P2112 code in your vehicle.

9. How long does it take to repair the Throttle Actuator Control System Stuck Closed code P2112 in a Lexus?

- The repair time can vary based on the exact cause of the issue and the availability of parts. In general, the repair can take anywhere from a few hours to a full day.

10. Is the Throttle Actuator Control System Stuck Closed code P2112 a common issue in Lexus vehicles?

- While not extremely common, the P2112 code related to the Throttle Actuator Control System Stuck Closed can occur in Lexus vehicles, especially in older models or those with high mileage.

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