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P2102 Toyota Code - Throttle Actuator Control Motor Circuit Low

Quick Answer

The P2102 diagnostic trouble code for Toyota vehicles indicates an issue with the Throttle Actuator Control Motor Circuit being lower than the manufacturer's specified threshold. Common causes include Faulty throttle actuator control motor, Wiring or connector issues in the throttle actuator control circuit, Electronic control module (ECM) malfunction. 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 Toyota indicates Throttle Actuator Control Motor Circuit Low.
Common causes
Common causes include Faulty throttle actuator control motor, Wiring or connector issues in the throttle actuator control circuit, Electronic control module (ECM) malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2102 Toyota Description

The P2102 diagnostic trouble code for Toyota vehicles indicates an issue with the Throttle Actuator Control Motor Circuit being lower than the manufacturer's specified threshold. This code is typically associated with electronic throttle control systems, which regulate the amount of air entering the engine to control the vehicle's speed and performance. When the throttle actuator control motor circuit is reading as low, it can lead to a variety of performance issues and potential safety concerns for the driver.

OBDII Code P2102 Toyota - Throttle Actuator Control Motor Circuit Low
P2102 Toyota Code - Throttle Actuator Control Motor Circuit Low

Common Causes of P2102 Toyota

  1. Faulty throttle actuator control motor
  2. Wiring or connector issues in the throttle actuator control circuit
  3. Electronic control module (ECM) malfunction
  4. Throttle position sensor failure
  5. Corrosion or damage to electrical connections

Symptoms of P2102 Toyota

  1. Poor acceleration and sluggish performance
  2. Rough idling or stalling
  3. Lack of response when pressing the gas pedal
  4. Check Engine Light illuminated on the dashboard
  5. Vehicle entering "limp mode" to protect the engine

How to Fix P2102 Toyota

  1. Begin by diagnosing the specific cause of the P2102 code using a diagnostic scan tool to pinpoint the exact issue within the throttle actuator control motor circuit.
  2. Inspect the throttle actuator control motor, wiring, and connectors for any signs of damage, corrosion, or wear. Replace any faulty components as needed.
  3. Check the electronic control module (ECM) for proper function and reprogram if necessary to address any software-related issues.
  4. Test the throttle position sensor to ensure it is functioning correctly and replace if faulty.
  5. Clear the diagnostic trouble codes from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2102 Toyota

The typical repair costs for addressing a P2102 code on a Toyota vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts and labor for this repair could range from $200 to $500 or more. It is important to keep in mind that diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. Factors such as location, vehicle make and model, and engine type can also impact the overall cost of the repair. For a more accurate estimate, it is recommended to consult with a local auto repair shop.

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Information for Specific Toyota Models

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.

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