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P0659 Volkswagen Code - Actuator Supply Voltage 'A' Circuit High

Quick Answer

The P0659 diagnostic trouble code (DTC) for Volkswagen vehicles indicates that there is an issue with the Actuator Supply Voltage 'A' Circuit being too high. Common causes include Faulty actuator, Wiring or connector issues in the actuator circuit, Corrosion or poor connections in the actuator 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
P0659 Volkswagen indicates Actuator Supply Voltage 'A' Circuit High.
Common causes
Common causes include Faulty actuator, Wiring or connector issues in the actuator circuit, Corrosion or poor connections in the actuator 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 07, 2024
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Code P0659 Volkswagen Description

The P0659 diagnostic trouble code (DTC) for Volkswagen vehicles indicates that there is an issue with the Actuator Supply Voltage 'A' Circuit being too high. This code is specifically related to the supply voltage to an actuator in the vehicle's engine management system. Actuators are responsible for controlling various components in the engine, such as the throttle body, fuel injectors, or EGR valve.

OBDII Code P0659 Volkswagen - Actuator Supply Voltage 'A' Circuit High
P0659 Volkswagen Code - Actuator Supply Voltage 'A' Circuit High

Common Causes of P0659 Volkswagen

  1. Faulty actuator.
  2. Wiring or connector issues in the actuator circuit.
  3. Corrosion or poor connections in the actuator circuit.
  4. Issues with the vehicle's power supply or voltage regulator.
  5. Problems with the engine control module (ECM) or related sensors.

Symptoms of P0659 Volkswagen

  1. Check Engine Light illuminated on the dashboard.
  2. Reduced engine performance or power.
  3. Engine stalling or rough idling.
  4. Decreased fuel efficiency.
  5. Vehicle going into limp mode (reduced power mode).

How to Fix P0659 Volkswagen

  1. Begin by conducting a thorough visual inspection of the actuator circuit, looking for any visible damage, corrosion, or loose connections.
  2. Use a multimeter to test the voltage output of the actuator supply voltage 'A' circuit to determine if it is reading higher than the specified range.
  3. Check the wiring harness and connectors for any signs of damage or poor connections, repairing or replacing as needed.
  4. Test the actuator itself to ensure it is functioning correctly, replacing it if necessary.
  5. Clear the DTC from the vehicle's computer system and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0659 Volkswagen

The cost of repairing the Actuator Supply Voltage 'A' Circuit High issue can vary depending on the specific cause of the problem and the labor rates in your area. On average, the cost of parts for this repair can range from $50 to $200, while labor costs can range from $100 to $300. Overall, you can expect to pay anywhere from $150 to $500 for this repair, but prices may vary. It is recommended to consult with a qualified mechanic or repair shop for a more accurate estimate based on your vehicle's make and model.

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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 P0659 Volkswagen Code

1. What are the common symptoms of OBDII code P0659 in a Volkswagen?

- Common symptoms include the check engine light coming on, issues with engine performance and acceleration, and potential stalling of the vehicle.

2. What does the OBDII code P0659 Volkswagen mean?

- This code indicates a problem with the Actuator Supply Voltage 'A' Circuit being too high in the vehicle.

3. What are the possible causes of OBDII code P0659 in a Volkswagen?

- Possible causes include a faulty actuator, wiring or connector issues, a malfunctioning powertrain control module (PCM), or a problem with the voltage supply to the actuator.

4. How can I diagnose the OBDII code P0659 in my Volkswagen?

- Diagnosing the code typically involves using a diagnostic scanner to read the code, checking the voltage supply to the actuator, inspecting wiring and connectors for damage, and testing the actuator itself.

5. Can I still drive my Volkswagen with OBDII code P0659 present?

- It is not recommended to drive the vehicle with this code present, as it can lead to potential engine performance issues and further damage if left unresolved.

6. How can I repair OBDII code P0659 in my Volkswagen?

- Repair options may include replacing the faulty actuator, repairing or replacing damaged wiring or connectors, resetting the fault codes, or seeking professional help for a detailed diagnosis and repair.

7. Is it possible to reset OBDII code P0659 in a Volkswagen without repairing the issue?

- While you can clear the fault codes using a diagnostic scanner, the underlying issue causing the code will likely persist and may trigger the check engine light again.

8. Can a DIY enthusiast fix OBDII code P0659 in a Volkswagen?

- Depending on the cause of the code, DIY enthusiasts with automotive repair experience may be able to address some aspects of the issue, such as checking and replacing wiring or connectors.

9. How much does it typically cost to repair OBDII code P0659 in a Volkswagen?

- The cost of repair can vary depending on the specific cause of the code, the labor rates in your area, and whether you choose to address the issue yourself or seek professional assistance.

10. Will OBDII code P0659 cause permanent damage to my Volkswagen if not repaired promptly?

- Ignoring this code could potentially lead to further damage to the vehicle's components or systems over time, so it is best to address the issue promptly to prevent more serious issues down the line.

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