AutoCodes – Toyota – P2112 2001 Toyota Highlander

P2112 2001 Toyota Highlander 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 Throttle Body Plate Binding, Faulty Throttle Actuator, Throttle Actuator harness is open or shorted. 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 2001 Toyota Highlander indicates Throttle Actuator Control System - Stuck Closed.
Common causes: Common causes include Throttle Body Plate Binding, Faulty Throttle Actuator, Throttle Actuator harness is open or shorted.
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 2,170

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 2001 Toyota Highlander 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 2001 Toyota Highlander - Throttle Actuator Control System - Stuck Closed - AutoCodes.com — P2112 2001 Toyota Highlander Code - Throttle Actuator Control System - Stuck Closed

What does this mean?

What are the Possible Causes of the DTC P2112 2001 Toyota Highlander?

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 2001 Toyota Highlander?

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 2001 Toyota Highlander 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 2001 Toyota Highlander code?

Need more information on how to fix the P2112 2001 Toyota Highlander 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 2001 Toyota Highlander Code

1. What does the OBDII code P2112 mean on a 2001 Toyota Highlander?

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

2. What are common symptoms of a P2112 code in a Toyota Highlander?

Common symptoms include reduced engine power, poor acceleration, and the vehicle going into "limp mode" to prevent further damage.

3. What are the possible causes of a Throttle Actuator Control System - Stuck Closed code on a 2001 Toyota Highlander?

Causes can include a faulty throttle body, throttle position sensor issues, wiring problems, or a malfunctioning electronic throttle control system.

4. How can I diagnose the issue causing the P2112 code on my Toyota Highlander?

Diagnosis typically involves checking the throttle body for any obstructions, inspecting the wiring and connectors for damage, and using a scan tool to monitor sensor readings.

5. Can a dirty throttle body cause the P2112 code in a Toyota Highlander?

Yes, a dirty or carbon-coated throttle body can impede proper operation and potentially trigger the Throttle Actuator Control System - Stuck Closed code.

6. Is it safe to continue driving with a P2112 code on a 2001 Toyota Highlander?

It is not recommended to continue driving with a P2112 code as it can lead to further issues and potential safety hazards due to reduced engine power.

7. How can I clear the P2112 code on my 2001 Toyota Highlander?

Clearing the code can be done using an OBDII scanner or by disconnecting the car battery for a few minutes. However, it is important to address the underlying issue causing the code.

8. Can I repair the Throttle Actuator Control System issue causing the P2112 code myself?

Depending on your mechanical skills, you may be able to address some aspects of the repair, such as cleaning the throttle body or checking the wiring. However, more complex issues may require professional diagnosis and repair.

9. Will resetting the P2112 code make it go away permanently?

Resetting the code without addressing the underlying problem will not make it go away permanently. The issue causing the code needs to be identified and fixed to prevent it from reoccurring.

10. How much does it typically cost to repair a P2112 code related issue in a 2001 Toyota Highlander?

The cost of repairs can vary depending on the specific cause of the code. Simple fixes like cleaning the throttle body may be relatively inexpensive, while replacing components or addressing wiring issues can be more costly.