DTC P0247: Turbocharger Wastegate Solenoid B Malfunction

As a diligent car owner, staying informed about potential issues that can affect your vehicle’s performance is essential. DTC P0247, referring to “Turbocharger Wastegate Solenoid B Malfunction,” is a concern that can impact engine efficiency. In this guide, we’ll delve into the causes, symptoms, inspection methods, resolutions, and the process of clearing DTC P0247. Equipped with this knowledge, you’ll be empowered to address this issue and ensure your car’s optimal functionality.

1. Causes of DTC P0247:

DTC P0247 arises when the engine control module detects a malfunction in the turbocharger wastegate solenoid B. Several factors can contribute to this problem:

  • Faulty Solenoid: A malfunctioning wastegate solenoid can disrupt the wastegate’s operation.
  • Electrical Issues: Wiring problems or poor connections can prevent proper solenoid function.
  • Vacuum Leaks: Leaks in the vacuum system can interfere with the wastegate’s operation.
  • Mechanical Blockages: Obstructions within the wastegate system can lead to solenoid malfunctions.

2. Symptoms of DTC P0247:

Recognizing potential symptoms can help you identify the issue promptly:

  • Check Engine Light: The check engine light on your dashboard will illuminate, signaling a problem.
  • Reduced Engine Performance: Your car might experience decreased power and acceleration due to improper wastegate function.
  • Change in Exhaust Sound: You might notice a change in the exhaust note, such as unusual hissing or noise.

3. Inspection of DTC P0247:

Conducting a thorough inspection is key to accurate diagnosis:

  • Visual Examination: Inspect the wastegate solenoid’s wiring and connectors for damage or poor connections.
  • Solenoid Testing: Test the solenoid’s electrical signal using appropriate tools or a multimeter.
  • Vacuum System Check: Inspect the vacuum lines and connections for leaks that could affect wastegate function.
  • Wastegate Inspection: Check for mechanical obstructions within the wastegate system.

4. Resolving Causes of DTC P0247:

Based on your inspection, take the following steps to address the issue:

  • Replace Faulty Solenoid: If the solenoid is malfunctioning, replace it with a compatible replacement.
  • Repair Wiring and Connections: Fix damaged wiring or connections to ensure proper solenoid operation.
  • Address Vacuum Leaks: Identify and fix any vacuum leaks within the system to maintain proper function.
  • Clear Mechanical Obstructions: If there are obstructions, remove them to restore proper wastegate operation.

5. Clearing DTC P0247:

After resolving the root cause, clear the code and reset the check engine light:

  • OBD-II Scanner: Use an OBD-II scanner to clear the code and turn off the check engine light.
  • Test Drive: Take your car for a test drive to confirm that the issue has been resolved and the light remains off.


Your commitment to maintaining your vehicle’s performance is evident through your proactive approach to understanding and addressing DTC P0247. By staying informed about issues like these, you’re actively contributing to your car’s longevity and efficiency. Remember that your role as a car owner involves both enjoying the driving experience and responsibly maintaining your vehicle’s well-being. This guide is here to support you every step of the way in your car ownership journey.