AutoCodes – Toyota – P2111 2009 Toyota Prius

P2111 2009 Toyota Prius Code - Throttle Actuator Control System - Stuck Open

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 Dirty Throttle Body, Throttle Body Plate Binding, Faulty Throttle Actuator. 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: P2111 2009 Toyota Prius indicates Throttle Actuator Control System - Stuck Open.
Common causes: Common causes include Dirty Throttle Body, Throttle Body Plate Binding, Faulty Throttle Actuator.
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 5,566

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Feb 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P2111 2009 Toyota Prius 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 P2111 2009 Toyota Prius - Throttle Actuator Control System - Stuck Open - AutoCodes.com — P2111 2009 Toyota Prius Code - Throttle Actuator Control System - Stuck Open

What does this mean?

What are the Possible Causes of the DTC P2111 2009 Toyota Prius?

Dirty Throttle Body
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 P2111 2009 Toyota Prius?

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 P2111 2009 Toyota Prius 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 P2111 2009 Toyota Prius code?

Need more information on how to fix the P2111 2009 Toyota Prius code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P2111 2009 Toyota Prius Code

1. What does the OBDII code P2111 on a 2009 Toyota Prius indicate?

The code P2111 indicates a problem with the Throttle Actuator Control System being stuck open.

2. What are the common symptoms of a Throttle Actuator Control System - Stuck Open issue on a 2009 Toyota Prius?

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

3. What are the possible causes of the Throttle Actuator Control System being stuck open in a 2009 Toyota Prius?

Potential causes include a faulty throttle body, issues with the throttle actuator control motor, wiring problems, or a damaged electronic throttle control system.

4. How serious is the P2111 code on a 2009 Toyota Prius?

The P2111 code should be addressed promptly as it can lead to unsafe driving conditions and affect the vehicle's performance.

5. Can I continue driving my 2009 Toyota Prius with the P2111 code present?

It is not recommended to continue driving the vehicle with the P2111 code as it can potentially cause further damage and compromise safety.

6. How can the Throttle Actuator Control System - Stuck Open issue on a 2009 Toyota Prius be repaired?

Repair options may include cleaning or replacing the throttle body, checking and repairing any damaged wiring, or replacing the throttle actuator control motor.

7. Is it possible to reset the P2111 code on a 2009 Toyota Prius without repairing the issue?

While you can clear the code temporarily, it is crucial to diagnose and fix the underlying problem to prevent it from recurring.

8. Can a DIY enthusiast fix the Throttle Actuator Control System - Stuck Open problem in a 2009 Toyota Prius?

Depending on your skill level and access to tools, some DIY enthusiasts may be able to address the issue, but it is recommended to consult a professional for proper diagnosis and repair.

9. How much does it typically cost to repair the Throttle Actuator Control System issue on a 2009 Toyota Prius?

The cost of repair can vary depending on the exact cause of the problem, but it is advisable to budget for potentially replacing components like the throttle body or control motor.

10. How often does the Throttle Actuator Control System - Stuck Open problem occur in 2009 Toyota Prius vehicles?

While not extremely common, issues with the Throttle Actuator Control System can occur in 2009 Toyota Prius models, especially as the vehicle ages and components wear out.