AutoCodes – Toyota – P2112 2004 Toyota Prius

P2112 2004 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 2004 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,112

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P2112 2004 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 2004 Toyota Prius - Throttle Actuator Control System - Stuck Closed - AutoCodes.com — P2112 2004 Toyota Prius Code - Throttle Actuator Control System - Stuck Closed

What does this mean?

What are the Possible Causes of the DTC P2112 2004 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 2004 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 2004 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 2004 Toyota Prius code?

Need more information on how to fix the P2112 2004 Toyota Prius code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2112 2004 Toyota Prius code diagnosed by a professional: Find a repair shop in your area

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 2004 Toyota Prius Code

1. What does OBDII code P2112 mean for a 2004 Toyota Prius?

The code P2112 indicates a problem with the Throttle Actuator Control System being stuck closed in a 2004 Toyota Prius.

2. What are the common symptoms of OBDII code P2112 in a 2004 Toyota Prius?

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

3. What are the possible causes of OBDII code P2112 in a 2004 Toyota Prius?

Potential causes include a faulty throttle actuator, wiring issues, damaged throttle body, or a malfunctioning throttle position sensor.

4. How serious is OBDII code P2112 in a 2004 Toyota Prius?

Code P2112 should be addressed promptly as it can lead to drivability issues and potentially unsafe driving conditions if left unresolved.

5. How can I diagnose OBDII code P2112 in a 2004 Toyota Prius?

Diagnosis typically involves checking the throttle actuator, inspecting related wiring, and testing the throttle position sensor using a diagnostic tool.

6. Can I still drive my 2004 Toyota Prius with OBDII code P2112?

It is not recommended to drive the vehicle with code P2112 as it can affect engine performance and safety. Get it checked by a mechanic as soon as possible.

7. How much does it cost to repair OBDII code P2112 in a 2004 Toyota Prius?

Repair costs for code P2112 can vary depending on the exact cause of the issue, but it may involve replacing the throttle actuator or addressing wiring problems.

8. Can I reset OBDII code P2112 in a 2004 Toyota Prius by disconnecting the battery?

While disconnecting the battery may reset the code temporarily, it is not a permanent solution. It is best to address the underlying issue causing the code.

9. Is it safe to continue driving if the OBDII code P2112 light is off in a 2004 Toyota Prius?

Even if the warning light is off, it is still recommended to have the issue diagnosed and repaired to prevent potential recurrence of the problem.

10. How can I prevent OBDII code P2112 from appearing in my 2004 Toyota Prius?

Regular maintenance, such as keeping the throttle system clean and ensuring proper wiring connections, can help prevent issues that lead to code P2112.