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Engine-Codes – Generic – P2102

P2102 Code - Throttle Actuator 'A' Control Motor Circuit Low

Quick Answer

When the OBD-II code P2102 appears, it indicates a problem with the throttle actuator control motor circuit being lower than expected. Common causes include Faulty throttle actuator control motor, Wiring or connector issues in the throttle actuator control circuit, Defective engine control module. 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 indicates Throttle Actuator 'A' Control Motor Circuit Low.
Common causes
Common causes include Faulty throttle actuator control motor, Wiring or connector issues in the throttle actuator control circuit, Defective engine control module.
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 Aug 30, 2024
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Code P2102 Description

When the OBD-II code P2102 appears, it indicates a problem with the throttle actuator control motor circuit being lower than expected. Essentially, the throttle actuator control system manages the opening and closing of the throttle valve to control the engine's air intake. In this case, a low circuit voltage can lead to issues with the throttle actuator's ability to function properly, affecting the vehicle's performance.

OBDII Code P2102 - Throttle Actuator 'A' Control Motor Circuit Low
P2102 Code - Throttle Actuator 'A' Control Motor Circuit Low

Common Causes of P2102

  1. Faulty throttle actuator control motor
  2. Wiring or connector issues in the throttle actuator control circuit
  3. Defective engine control module
  4. Corrosion or damage to electrical connections
  5. Environmental factors such as moisture or debris affecting the circuit

Symptoms of P2102

  1. Reduced engine power
  2. Engine stalling or hesitation
  3. Illuminated check engine light
  4. Difficulty accelerating
  5. Rough idling

How to Fix P2102

  1. Diagnose the specific cause of the issue using a scan tool to pinpoint the problem area.
  2. Inspect the wiring and connectors in the throttle actuator control motor circuit for any damage or corrosion.
  3. Test the throttle actuator control motor for proper functionality and replace if necessary.
  4. Check the engine control module for any faults or errors and address accordingly.
  5. Clear the error code and reset the system to ensure proper operation.

Cost to Fix P2102

The typical repair costs for addressing a throttle actuator control motor circuit low issue can range from $200 to $500, including parts and labor. However, actual costs may vary based on the specific diagnosis time and labor rates at auto repair shops, which can be influenced by factors such as location, vehicle make and model, and engine type. It's recommended to check with local shops for a more accurate estimate.

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Code P2102 Information for Specific Makes

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 Code

1. What are the common symptoms of OBDII code P2102?

- Common symptoms of P2102 include poor acceleration, rough idling, stalling, and the vehicle going into limp mode.

2. What does the OBDII code P2102 indicate?

- P2102 indicates a low voltage condition in the circuit that controls the throttle actuator 'A' motor.

3. What are the potential causes of OBDII code P2102?

- The code P2102 can be caused by issues such as a faulty throttle actuator control motor, damaged wiring or connectors, or a malfunctioning PCM.

4. How can I diagnose the cause of OBDII code P2102?

- Diagnosing P2102 involves checking the throttle actuator motor, inspecting the wiring for damage, and testing the voltage at various points in the circuit.

5. Can a dirty throttle body cause OBDII code P2102?

- While a dirty throttle body can cause related issues, such as P2110 or P2112 codes, it is unlikely to directly trigger the P2102 code.

6. Is it safe to drive with OBDII code P2102 present?

- It is not recommended to drive with the P2102 code present, as it can lead to performance issues and potentially unsafe driving conditions.

7. How can I repair OBDII code P2102?

- Repairing P2102 typically involves replacing the throttle actuator control motor, repairing any damaged wiring, or addressing any issues with the PCM.

8. Can resetting the OBDII code P2102 resolve the issue temporarily?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the P2102 code.

9. Are there any DIY fixes for OBDII code P2102?

- DIY fixes for P2102 are limited due to the complexity of the throttle actuator control system. It is best to have a professional diagnose and repair the issue.

10. How much does it cost to repair OBDII code P2102?

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

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