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Engine-Codes – Generic – P2671

P2671 Code - Actuator Supply Voltage 'B' Circuit High

Quick Answer

The diagnostic trouble code P2671 indicates an issue with the Actuator Supply Voltage 'B' Circuit being too high. Common causes include Corrosion in wiring or connectors, Loose connections in the Actuator Supply Voltage 'B' Circuit, Short circuits in the circuit. 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
P2671 indicates Actuator Supply Voltage 'B' Circuit High.
Common causes
Common causes include Corrosion in wiring or connectors, Loose connections in the Actuator Supply Voltage 'B' Circuit, Short circuits in the circuit.
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 13, 2024
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Code P2671 Description

The diagnostic trouble code P2671 indicates an issue with the Actuator Supply Voltage 'B' Circuit being too high. This code is typically found in vehicles with electronic throttle control systems. The actuator supply voltage 'B' circuit is responsible for providing power to the throttle actuator control module. When the voltage in this circuit is higher than normal, it can lead to various performance issues in the vehicle.

OBDII Code P2671 - Actuator Supply Voltage 'B' Circuit High
P2671 Code - Actuator Supply Voltage 'B' Circuit High

Common Causes of P2671

  1. Corrosion in wiring or connectors
  2. Loose connections in the Actuator Supply Voltage 'B' Circuit
  3. Short circuits in the circuit
  4. Faulty throttle actuator control module
  5. Issues with the power supply to the circuit

Symptoms of P2671

  1. Erratic idling
  2. Stalling
  3. Hesitation during acceleration
  4. Limited vehicle speed
  5. Limp mode activation

How to Fix P2671

  1. Begin by conducting a thorough inspection of the wiring and connectors in the Actuator Supply Voltage 'B' Circuit.
  2. Check for any signs of corrosion, loose connections, or damage that may be causing the high voltage issue.
  3. Test the throttle actuator control module to determine if it is functioning correctly or needs to be replaced.
  4. Clear the diagnostic trouble code from the vehicle's system using a scan tool after addressing the underlying issue.
  5. Test drive the vehicle to ensure that the symptoms associated with the high voltage in the Actuator Supply Voltage 'B' Circuit have been resolved.

Cost to Fix P2671

The typical repair costs for addressing the Actuator Supply Voltage 'B' Circuit High issue can range from $200 to $500, depending on the extent of the problem and the cost of parts. This estimate includes labor costs, which can vary based on the location, vehicle make and model, and the specific repair shop. It's recommended to check with local auto repair shops for more accurate pricing information.

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Code P2671 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.

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