P0247 Turbocharger wastegate solenoid “B” circuit malfunction

P0247 – OBD-II Trouble Code Technical Description

Trouble code P0247 indicates a problem with the turbocharger wastegate solenoid “B” circuit.

What does the fault code mean P0247?

Trouble code P0247 indicates that the PCM has detected a malfunction in the turbocharger wastegate solenoid “B” circuit. This means that the signal coming from solenoid “B” is not as expected, which may indicate problems with the electrical connection, the solenoid itself, or other components of the bypass valve system.

Possible reasons

Some possible causes of the P0247 trouble code:

• Faulty bypass valve solenoid “B”: The solenoid itself may be defective due to wear, corrosion, or other damage.
• Electrical connection problems: Breaks, corrosion or poor connections in the wiring can cause insufficient or incorrect control signals to be transmitted to the solenoid.
• Problems with the engine control module (PCM): Faults in the engine control module itself can cause the solenoid to operate erroneously and therefore generate an error code.
• Improper installation or adjustment of solenoid: Improper installation or adjustment of the solenoid may cause it to malfunction.
• Problems with other bypass valve system components: Improper operation of other components, such as sensors or valves associated with the bypass valve system, can also cause the P0247 code.
• Mechanical problems: Incorrect operation of the bypass valve related mechanisms due to wear or damage can also cause this error.

It is necessary to conduct a thorough diagnosis to accurately determine the cause and eliminate the problem.

What are the symptoms of a fault code? P0247?

Symptoms when trouble code P0247 is present may include the following:

• Gear shifting problems: The vehicle may have difficulty changing gears, especially when moving into higher gears.
• Uneven engine operation: The engine may run unevenly, including shaking, vibration, or rough running.
• Loss of power: Incorrect operation of wastegate solenoid “B” may result in loss of engine power, especially when turbocharging is activated.
• Increased fuel consumption: A faulty solenoid can cause increased fuel consumption due to ineffective control system operation.
• The car can stay in one gear: In some cases, the vehicle may remain in one gear or not shift to the next, which may indicate problems with the transmission control system.
• Check Engine Light Appears: The activation of the Check Engine Light on your dashboard may be the first sign of a problem and indicate the presence of a P0247 code.

These symptoms may occur to varying degrees depending on the specific problem and the characteristics of the vehicle. If you notice one or more of these symptoms, it is recommended that you contact a certified auto mechanic to diagnose and repair the problem.

How to diagnose a fault code P0247?

To diagnose DTC P0247, the following steps are recommended:

• Reading the error code: Using the OBD-II diagnostic scanner, read the P0247 error code and any other error codes that may be related to the problem.
• Visual inspection of the solenoid and its surroundings: Check bypass valve solenoid “B” for visible damage, corrosion or leaks. Also carefully inspect the electrical connections and wiring for damage.
• Checking electrical connections: Check the solenoid electrical connections for oxidation, damaged or broken wires.
• Measuring Solenoid Resistance: Using a multimeter, measure the resistance of the solenoid. Resistance must be within manufacturer specifications.
• Checking the supply voltage: Check the supply voltage to the solenoid while the engine is running. The voltage must be stable and within the manufacturer's specifications.
• Checking the control signal: Check if the solenoid receives control signal from the PCM while the engine is running.
• PCM diagnostics: If necessary, perform additional diagnostics on the PCM to check its functionality and the correct solenoid control signal.
• Checking the pressure in the automatic transmission system: Check the pressure in the automatic transmission system, as pressure problems can also cause the P0247 code.
• Checking other automatic transmission system components: Check other components of the automatic transmission system, such as valves or sensors, for problems that may be related to the P0247 code.

Diagnostic errors

When diagnosing DTC P0247, the following errors may occur:

• Skipping a visual inspection: Uninspected or overlooked damage to the solenoid or its surroundings can result in obvious problems being missed.
• Insufficient checking of electrical connections: Failure to properly evaluate electrical connections or their condition may result in problems with wiring or connectors being missed.
• Incorrect interpretation of diagnostic results: Incorrect interpretation of diagnostic scanner or multimeter data may lead to incorrect conclusions about the causes of the error.
• Problems with the solenoid itself: A malfunction or damage to the solenoid that is not detected during diagnosis may lead to an incorrect diagnosis.
• Skip additional diagnostics: Insufficient or omitted additional diagnostics of other components of the automatic transmission system, such as valves or sensors, can lead to important problems being missed.
• Incorrect component replacement: Replacing the solenoid without prior diagnosis or based on incorrect findings may be unnecessary if the problem lies elsewhere.
• Inadequate testing: Insufficient testing of the system after repair or replacement of components may result in additional problems or malfunctions being missed.

To avoid these errors, it is important to carry out a thorough and systematic diagnosis under the guidance of a qualified technician and use the correct equipment.

How serious is the fault code? P0247?

Trouble code P0247 should be taken seriously because it indicates a problem with the wastegate solenoid “B” in the automatic transmission control system. A few reasons why this code should be taken seriously:

• Potential problems with transmissions: A malfunction of the wastegate solenoid “B” may result in improper gear shifting, which may affect vehicle performance and safety.
• Increased risk of automatic transmission damage: Improper operation of the solenoid can cause excessive or insufficient pressure in the automatic transmission system, which can lead to damage or wear.
• Loss of vehicle control: Improper operation of the solenoid may cause loss of vehicle control, especially when the turbo is activated, which may pose a hazard to the driver and others.
• Increased fuel consumption and engine wear: A malfunctioning solenoid can result in increased fuel consumption and unnecessary engine wear due to improper operation of the automatic transmission system.
• Potential environmental problems: Improper operation of the solenoid can affect the vehicle's emissions and environmental performance.

Given these factors, it is important to immediately begin diagnosing and repairing the problem associated with the P0247 trouble code to avoid further damage and problems with your vehicle.

What repair will help eliminate the code? P0247?

To resolve DTC P0247, the following repairs are required, depending on the cause found:

1. Bypass Valve Solenoid “B” Replacement: If the solenoid is faulty or low voltage, it is recommended to replace it with a new one that meets the manufacturer's specifications.
2. Repair or replacement of wiring and connectors: Check the wiring and connectors associated with the solenoid for corrosion, breaks or damage. If necessary, replace damaged wires or connectors and repair any corrosion.
3. Diagnosis and replacement of the engine control module (ECM): If the problem is with the Engine Control Module (ECM), it must be diagnosed and, if necessary, replaced or reprogrammed.
4. Checking and cleaning the turbocharger filter: The problem may be caused by a clogged or defective turbocharger filter. Check the filter for blockages and clean or replace it if necessary.
5. Diagnostics of the turbocharging system: Diagnose the entire turbocharging system, including pressure and sensors, to rule out other possible causes of the error.
6. Programming or software updateNote: In some cases, updating the engine control module (ECM) software may help resolve the problem.

It is important to accurately determine the cause of the P0247 code before making any repairs. If you do not have experience with automotive repairs or diagnostics, it is recommended that you contact a qualified auto mechanic or auto repair shop for assistance.

How to Diagnose and Fix P0247 Engine Code - OBD II Trouble Code Explain

P0247 – Brand-specific information

Trouble code P0247 can have different meanings depending on the vehicle manufacturer, several examples of meanings for different brands:

• BMW: P0247 – Turbocharger wastegate solenoid “B” - low voltage.
• Ford: P0247 – Turbocharger wastegate solenoid “B” - low voltage.
• Volkswagen/Audi: P0247 – Turbocharger wastegate solenoid “B” - low voltage.
• Toyota: P0247 – Turbocharger wastegate solenoid “B” - low voltage.
• Chevrolet / GMC: P0247 – Turbocharger wastegate solenoid “B” - low voltage.

These are just a few examples, and the meaning of the P0247 code may vary slightly depending on the specific model and year of the vehicle. It is important to take this information into account when diagnosing and repairing