AutoCodes – Toyota – P2102 2007 Toyota Prius

P2102 2007 Toyota Prius Code - Throttle Actuator Control Motor Circuit Low

Quick Answer

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open. 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: P2102 2007 Toyota Prius indicates Throttle Actuator Control Motor Circuit Low.
Common causes: Common causes include Dirty throttle body, Faulty Throttle Actuator Control Motor, Throttle Actuator Control Motor harness is open.
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 3,355

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 P2102 2007 Toyota Prius Description

The throttle actuator is operated by the Engine Control Module (ECM) and it opens and closes the throttle valve. Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. 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. This feedback allows the ECM to control the throttle actuator and monitor the throttle opening angle in response to driver inputs.

OBDII Code P2102 2007 Toyota Prius - Throttle Actuator Control Motor Circuit Low - AutoCodes.com — P2102 2007 Toyota Prius Code - Throttle Actuator Control Motor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2102 2007 Toyota Prius?

Dirty throttle body
Faulty Throttle Actuator Control Motor
Throttle Actuator Control Motor harness is open
Throttle Actuator Control Motor circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P2102 2007 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 P2102 2007 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 P2102 2007 Toyota Prius code?

Need more information on how to fix the P2102 2007 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 P2102 2007 Toyota Prius Code

1. What are the common symptoms of OBDII code P2102 in a 2007 Toyota Prius?

When the Throttle Actuator Control Motor Circuit Low error code (P2102) occurs in a 2007 Toyota Prius, common symptoms may include reduced engine power, lack of throttle response, and the vehicle going into "limp mode."

2. What are the possible causes of OBDII code P2102 in a 2007 Toyota Prius?

The Throttle Actuator Control Motor Circuit Low code (P2102) in a 2007 Toyota Prius can be caused by issues such as a faulty throttle body, wiring problems, damaged connectors, or a malfunctioning throttle actuator control motor.

3. How can I diagnose the Throttle Actuator Control Motor Circuit Low error code (P2102) in my 2007 Toyota Prius?

To diagnose OBDII code P2102 in a 2007 Toyota Prius, you can use a diagnostic scanner to read the code, check the throttle body for any visible damage, inspect the wiring and connectors for loose connections or corrosion, and perform a thorough visual inspection of the throttle actuator control motor.

4. Can I still drive my 2007 Toyota Prius with the OBDII code P2102 present?

It is not recommended to drive your 2007 Toyota Prius with the Throttle Actuator Control Motor Circuit Low code (P2102) present, as it can lead to unsafe driving conditions and potential further damage to the vehicle. It's best to have the issue diagnosed and repaired before driving the vehicle again.

5. How can I repair OBDII code P2102 in my 2007 Toyota Prius?

To repair the Throttle Actuator Control Motor Circuit Low code (P2102) in a 2007 Toyota Prius, you may need to replace the throttle body, repair any damaged wiring or connectors, or replace the throttle actuator control motor if it is faulty. It's recommended to have a professional mechanic perform the repairs.

6. Is resetting the OBDII code P2102 in my 2007 Toyota Prius enough to fix the issue?

Simply resetting the Throttle Actuator Control Motor Circuit Low code (P2102) in a 2007 Toyota Prius may temporarily clear the error code, but it will not fix the underlying issue causing the code. It's essential to diagnose and address the root cause of the problem to prevent the code from reoccurring.

7. Will a faulty throttle position sensor trigger the OBDII code P2102 in a 2007 Toyota Prius?

While a faulty throttle position sensor can contribute to issues related to the throttle system, it is not a common cause of the Throttle Actuator Control Motor Circuit Low code (P2102) specifically in a 2007 Toyota Prius. Focus on checking the throttle body, wiring, connectors, and throttle actuator control motor for this error code.

8. Can extreme weather conditions trigger the OBDII code P2102 in a 2007 Toyota Prius?

Extreme weather conditions, such as extreme cold or heat, can potentially exacerbate existing issues that may lead to the Throttle Actuator Control Motor Circuit Low code (P2102) in a 2007 Toyota Prius. Ensuring all components are functioning correctly can help mitigate the impact of weather on triggering this code.

9. How much does it typically cost to repair OBDII code P2102 in a 2007 Toyota Prius?

The cost to repair the Throttle Actuator Control Motor Circuit Low code (P2102) in a 2007 Toyota Prius can vary depending on the specific cause of the issue, parts needed for replacement, and labor costs. It's advisable to obtain quotes from reputable mechanics or service centers for an accurate estimate.

10. Can regular maintenance help prevent OBDII code P2102 in a 2007 Toyota Prius?

Regular maintenance, such as checking and cleaning the throttle body, inspecting wiring and connectors for damage, and ensuring proper engine performance, can help prevent issues that may lead to the Throttle Actuator Control Motor Circuit Low code (P2102) in a 2007 Toyota Prius.