AutoCodes – Toyota – P2102 2006 Toyota Prius

P2102 2006 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 2006 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 2,721

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 2006 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 2006 Toyota Prius - Throttle Actuator Control Motor Circuit Low - AutoCodes.com — P2102 2006 Toyota Prius Code - Throttle Actuator Control Motor Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2102 2006 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 2006 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 2006 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 2006 Toyota Prius code?

Need more information on how to fix the P2102 2006 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 P2102 2006 Toyota Prius Code

1. What is OBDII code P2102 in a 2006 Toyota Prius?

- OBDII code P2102 in a 2006 Toyota Prius indicates an issue with the Throttle Actuator Control Motor Circuit being low.

2. What are the common symptoms of OBDII code P2102 in a 2006 Toyota Prius?

- Common symptoms of P2102 may include reduced engine power, hesitation during acceleration, and the vehicle going into limp mode.

3. What are the possible causes of OBDII code P2102 in a 2006 Toyota Prius?

- The main causes of P2102 in a 2006 Toyota Prius are a faulty throttle actuator control motor, damaged wiring or connectors in the circuit, or a malfunctioning throttle position sensor.

4. How can I diagnose the OBDII code P2102 in my 2006 Toyota Prius?

- To diagnose P2102, you can use an OBDII scanner to read the code, inspect the throttle actuator control motor and its connections, and test the throttle position sensor for proper operation.

5. Can I still drive my 2006 Toyota Prius with OBDII code P2102?

- It is not recommended to drive your Toyota Prius with P2102 as it can lead to performance issues and potentially unsafe driving conditions. It is best to have the issue diagnosed and repaired promptly.

6. How can I repair OBDII code P2102 in my 2006 Toyota Prius?

- Repairing P2102 may involve replacing the throttle actuator control motor, repairing any damaged wiring or connectors in the circuit, or recalibrating the throttle position sensor.

7. Is it safe to reset the OBDII code P2102 in my 2006 Toyota Prius using an OBDII scanner?

- While resetting the code may temporarily clear the error, it is important to address the underlying issue causing P2102 to prevent it from recurring and potentially causing further damage to the vehicle.

8. Can a DIY enthusiast repair OBDII code P2102 in a 2006 Toyota Prius?

- Depending on your skill level and access to tools, a DIY enthusiast may be able to repair P2102 by following the appropriate repair procedures outlined in the vehicle's service manual.

9. Will OBDII code P2102 cause my 2006 Toyota Prius to fail an emissions test?

- Yes, OBDII code P2102 can cause your Toyota Prius to fail an emissions test as it indicates a malfunction in the throttle actuator control motor circuit, which can impact the vehicle's emissions control system.

10. How much does it typically cost to repair OBDII code P2102 in a 2006 Toyota Prius?

- The cost of repairing P2102 in a 2006 Toyota Prius can vary depending on the underlying cause of the issue, but it may range from $200 to $600 including parts and labor.