P0247 Turbocharger/Supercharger Wastegate Solenoid B Malfunction

OBD2 Code: P0247

Description: Turbocharger/Supercharger Wastegate Solenoid B Malfunction

Definition: This diagnostic trouble code (DTC) indicates a malfunction in the wastegate solenoid circuit for turbocharger/supercharger “B”. The wastegate solenoid is responsible for controlling the boost pressure by opening and closing the wastegate valve. A malfunction can result from electrical issues, such as wiring problems or a faulty solenoid.

P0247 – Turbocharger/Supercharger Wastegate Solenoid B Malfunction

Severity: Moderate

Common Causes

P0247 – Turbocharger/Supercharger Wastegate Solenoid B Malfunction

Common Causes:

• Faulty wastegate solenoid B
• Wiring issues in the wastegate solenoid circuit
• Poor electrical connection in the wastegate solenoid system
• Software glitches or calibration errors related to the wastegate solenoid

 

Common Misdiagnosis

OBD2 Code: P0247

Description: Turbocharger/Supercharger Wastegate Solenoid B Malfunction

Common Misdiagnosis: Replacing the turbocharger or supercharger without checking the wastegate solenoid or related wiring and connections.

 

Common Diagnostic Steps

OBD2 Code: P0247

Description: Turbocharger/Supercharger Wastegate Solenoid B Malfunction

• Check for any additional trouble codes that may be present and address them first.
• Inspect the wastegate solenoid wiring and connectors for damage, corrosion, or loose connections.
• Test the wastegate solenoid using a multimeter to ensure it is receiving power and ground signals properly.
• Verify the operation of the wastegate by manually actuating it to ensure it moves freely without obstruction.
• Check for vacuum leaks in the turbocharger/supercharger system that could affect wastegate operation.
• If applicable, use a scan tool to perform an active test on the wastegate solenoid to verify its functionality.
• If all tests pass but the code persists, consider replacing the wastegate solenoid as a last resort after confirming no other issues are present.