AutoCodes – Toyota – P2112 2005 Toyota Prius

P2112 2005 Toyota Prius 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 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: P2112 2005 Toyota Prius indicates Throttle Actuator Control System - Stuck Closed.
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 3,712

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 P2112 2005 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 P2112 2005 Toyota Prius - Throttle Actuator Control System - Stuck Closed - AutoCodes.com — P2112 2005 Toyota Prius Code - Throttle Actuator Control System - Stuck Closed

What does this mean?

What are the Possible Causes of the DTC P2112 2005 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 P2112 2005 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 P2112 2005 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 P2112 2005 Toyota Prius code?

Need more information on how to fix the P2112 2005 Toyota Prius code? Get Access to Factory Service Manuals

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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 2005 Toyota Prius Code

1. What does OBDII code P2112 mean for a 2005 Toyota Prius?

The code P2112 indicates a problem with the Throttle Actuator Control System, specifically that the throttle actuator is stuck closed.

2. What are common symptoms of OBDII code P2112 in a 2005 Toyota Prius?

Common symptoms include reduced engine power, acceleration issues, and the vehicle going into limp mode.

3. What can cause the Throttle Actuator Control System to get stuck closed in a 2005 Toyota Prius?

The throttle actuator getting stuck closed can be caused by a faulty throttle body, wiring issues, or problems with the throttle position sensor.

4. How do I diagnose the Throttle Actuator Control System issue in my 2005 Toyota Prius?

Diagnosing the issue involves checking the throttle body for any physical obstructions, testing the throttle position sensor, and inspecting the wiring for any damage.

5. Can I drive my 2005 Toyota Prius with OBDII code P2112?

It is not recommended to drive your vehicle with the code P2112 as it can lead to further damage and safety issues. It's best to address the problem promptly.

6. How can I fix OBDII code P2112 in my 2005 Toyota Prius?

Fixing the issue may involve cleaning or replacing the throttle body, repairing any damaged wiring, or replacing the throttle position sensor as necessary.

7. Is it possible to reset OBDII code P2112 in a 2005 Toyota Prius?

Resetting the code may temporarily clear the warning light, but if the underlying issue causing the code is not addressed, it will likely reappear.

8. Will OBDII code P2112 cause permanent damage to my 2005 Toyota Prius?

Driving with code P2112 for an extended period can potentially cause damage to the engine or other components, so it's important to address the issue promptly.

9. Can a DIY enthusiast fix OBDII code P2112 in a 2005 Toyota Prius?

Depending on the level of expertise, a DIY enthusiast may be able to address the issue by following repair guides and using appropriate tools. However, professional help is recommended for complex repairs.

10. How much does it cost to repair OBDII code P2112 in a 2005 Toyota Prius?

The cost of repair can vary depending on the exact cause of the issue and whether you choose to do the repairs yourself or take the vehicle to a mechanic. Costs can range from a few hundred to over a thousand dollars.